10 C.F.R. PART 431—ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT


Title 10 - Energy


Title 10: Energy

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PART 431—ENERGY EFFICIENCY PROGRAM FOR CERTAIN COMMERCIAL AND INDUSTRIAL EQUIPMENT

Section Contents

Subpart A—General Provisions

§ 431.1   Purpose and scope.
§ 431.2   Definitions.

Subpart B—Electric Motors

§ 431.11   Purpose and scope.
§ 431.12   Definitions.

Test Procedures, Materials Incorporated and Methods of Determining Efficiency

§ 431.15   Materials incorporated by reference.
§ 431.16   Test procedures for the measurement of energy efficiency.
§ 431.17   Determination of efficiency.
§ 431.18   Testing laboratories.
§ 431.19   Department of Energy recognition of accreditation bodies.
§ 431.20   Department of Energy recognition of nationally recognized certification programs.
§ 431.21   Procedures for recognition and withdrawal of recognition of accreditation bodies and certification programs.

Energy Conservation Standards

§ 431.25   Energy conservation standards and effective dates.
§ 431.26   Preemption of State regulations.

Labeling

§ 431.30   Applicability of labeling requirements.
§ 431.31   Labeling requirements.
§ 431.32   Preemption of State regulations.

Certification

§ 431.35   Applicability of certification requirements.
§ 431.36   Compliance Certification.
Appendix A to Subpart B of 10 CFR Part 431, Policy Statement for Electric Motors Covered Under the Energy Policy and Conservation Act
Appendix B to Subpart B of Part 431—Uniform Test Method for Measuring Nominal Full Load Efficiency of Electric Motors
Appendix C to Subpart B of Part 431—Compliance Certification

Subpart C—Commercial Refrigerators, Freezers and Refrigerator-Freezers

§ 431.61   Purpose and scope.
§ 431.62   Definitions concerning commercial refrigerators, freezers and refrigerator-freezers.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.66   Energy conservation standards and their effective dates.

Subpart D—Commercial Warm Air Furnaces

§ 431.71   Purpose and scope.
§ 431.72   Definitions concerning commercial warm air furnaces.

Test Procedures

§ 431.75   Materials incorporated by reference.
§ 431.76   Uniform test method for the measurement of energy efficiency of commercial warm air furnaces.

Energy Conservation Standards

§ 431.77   Energy conservation standards and their effective dates.

Subpart E—Commercial Packaged Boilers

§ 431.81   Purpose and scope.
§ 431.82   Definitions concerning commercial packaged boilers.

Test Procedures

§ 431.85   Materials incorporated by reference.
§ 431.86   Uniform test method for the measurement of energy efficiency of commercial packaged boilers.

Energy Efficiency Standards

§ 431.87   Energy conservation standards and their effective dates.

Subpart F—Commercial Air Conditioners and Heat Pumps

§ 431.91   Purpose and scope.
§ 431.92   Definitions concerning commercial air conditioners and heat pumps.

Test Procedures

§ 431.95   Materials incorporated by reference.
§ 431.96   Uniform test method for the measurement of energy efficiency of small and large commercial package air conditioning and heating equipment, packaged terminal air conditioners, and packaged terminal heat pumps.

Energy Efficiency Standards

§ 431.97   Energy efficiency standards and their effective dates.

Subpart G—Commercial Water Heaters, Hot Water Supply Boilers and Unfired Hot Water Storage Tanks

§ 431.101   Purpose and scope.
§ 431.102   Definitions concerning commercial water heaters, hot water supply boilers, and unfired hot water storage tanks.

Test Procedures

§ 431.105   Materials incorporated by reference.
§ 431.106   Uniform test method for the measurement of energy efficiency of commercial water heaters and hot water supply boilers (other than commercial heat pump water heaters).
§ 431.107   Uniform test method for the measurement of energy efficiency of commercial heat pump water heaters. [Reserved]

Energy Conservation Standards

§ 431.110   Energy conservation standards and their effective dates.

Subpart H—Automatic Commercial Ice Makers

§ 431.131   Purpose and scope.
§ 431.132   Definitions concerning automatic commercial ice makers.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.136   Energy conservation standards and their effective dates.

Subpart I—Commercial Clothers Washers

§ 431.151   Purpose and scope.
§ 431.152   Definitions concerning commercial clothes washers.

Test Procedures

§ 431.154   Test procedures.

Energy Conservation Standards

§ 431.156   Energy and water conservation standards and effective dates.

Subpart J—Provisions for Commercial HVAC & Water Heating Products

§ 431.171   Purpose and scope. [Reserved]
§ 431.172   Definitions.

Subpart K—Distribution Transformers

§ 431.191   Purpose and scope.
§ 431.192   Definitions.

Test Procedures

§ 431.193   Test procedures for measuring energy consumption of distribution transformers.

Energy Conservation Standards

§ 431.196   Energy conservation standards and their effective dates.

Compliance and Enforcement

§ 431.197   Manufacturer's determination of efficiency for distribution transformers.
§ 431.198   Enforcement testing for distribution transformers.
Appendix A to Subpart K of Part 431—Uniform Test Method for Measuring the Energy Consumption of Distribution Transformers
Appendix B to Subpart K of Part 431—Sampling Plan for Enforcement Testing

Subpart L—Illuminated Exit Signs

§ 431.201   Purpose and scope.
§ 431.202   Definitions concerning illuminated exit signs.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.206   Energy conservation standards and their effective dates.

Subpart M—Traffic Signal Modules and Pedestrian Modules

§ 431.221   Purpose and scope.
§ 431.222   Definitions concerning traffic signal modules and pedestrian modules.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.226   Energy conservation standards and their effective dates.

Subpart N—Unit Heaters

§ 431.241   Purpose and scope.
§ 431.242   Definitions concerning unit heaters.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.246   Energy conservation standards and their effective dates.

Subpart O—Commercial Prerinse Spray Valves

§ 431.261   Purpose and scope.
§ 431.262   Definitions concerning commercial prerinse spray valves.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.266   Energy conservation standards and their effective dates.

Subpart P—Mercury Vapor Lamp Ballasts

§ 431.281   Purpose and scope.
§ 431.282   Definitions concerning mercury vapor lamp ballasts.

Test Procedures [Reserved]


Energy Conservation Standards

§ 431.286   Energy conservation standards and their effective dates.

Subparts Q–T [Reserved]


Subpart U—Enforcement

§ 431.381   Purpose and scope.
§ 431.382   Prohibited acts.
§ 431.383   Enforcement process for electric motors.
§ 431.384   [Reserved]
§ 431.385   Cessation of distribution of a basic model of an electric motor.
§ 431.386   Remedies.
§ 431.387   Hearings and appeals.
Appendix A to Subpart U of Part 431—Sampling Plan for Enforcement Testing of Electric Motors

Subpart V—General Provisions

§ 431.401   Petitions for waiver, and applications for interim waiver, of test procedure.
§ 431.402   Preemption of State regulations for commercial HVAC & WH products.
§ 431.403   Maintenance of records.
§ 431.404   Imported equipment.
§ 431.405   Exported equipment.
§ 431.406   Subpoena.
§ 431.407   Confidentiality.

Subpart W—Petitions To Exempt State Regulation From Preemption; Petitions To Withdraw Exemption of State Regulation

§ 431.421   Purpose and scope.
§ 431.422   Prescriptions of a rule.
§ 431.423   Filing requirements.
§ 431.424   Notice of petition.
§ 431.425   Consolidation.
§ 431.426   Hearing.
§ 431.427   Disposition of petitions.
§ 431.428   Effective dates of final rules.
§ 431.429   Request for reconsideration.
§ 431.430   Finality of decision.


Authority:  42 U.S.C. 6291–6317.

Source:  64 FR 54141, Oct. 5, 1999, unless otherwise noted.

Subpart A—General Provisions
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§ 431.1   Purpose and scope.
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This part establishes the regulations for the implementation of provisions relating to commercial and industrial equipment in Part B of Title III of the Energy Policy and Conservation Act (42 U.S.C. 6291–6309) and in Part C of Title III of the Energy Policy and Conservation Act (42 U.S.C. 6311–6317), which establishes an energy conservation program for certain commercial and industrial equipment.

[70 FR 60414, Oct. 18, 2005]

§ 431.2   Definitions.
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The following definitions apply for purposes of this part. Any words or terms not defined in this Section or elsewhere in this Part shall be defined as provided in Section 340 of the Act.

Act means the Energy Policy and Conservation Act of 1975, as amended, 42 U.S.C. 6291–6316.

Btu means British thermal unit, which is the quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Covered equipment means any electric motor, as defined in §431.12, or commercial heating, ventilating, and air conditioning, and water heating product (HVAC & WH product), as defined in §431.72.

DOE or the Department means the U.S. Department of Energy.

EPCA means the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6291–6316.

Gas means propane or natural gas as defined by the Federal Power Commission.

ISO means International Organization for Standardization.

Manufacture means to manufacture, produce, assemble, or import.

Manufacturer means any person who manufactures industrial equipment, including any manufacturer of a commercial packaged boiler.

Secretary means the Secretary of Energy.

State means a State, the District of Columbia, Puerto Rico, or any territory or possession of the United States.

State regulation means a law or regulation of a State or political subdivision thereof.

[69 FR 61923, Oct. 21, 2004]

Subpart B—Electric Motors
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Source:  69 FR 61923, Oct. 21, 2004, unless otherwise noted.

§ 431.11   Purpose and scope.
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This subpart contains energy conservation requirements for electric motors. It contains test procedures that EPCA requires DOE to prescribe, related requirements, energy conservation standards prescribed by EPCA, labeling rules, and compliance procedures. It also identifies materials incorporated by reference in this part.

§ 431.12   Definitions.
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The following definitions apply for purposes of this subpart, and of subparts K through M of this part. Any words or terms not defined in this Section or elsewhere in this Part shall be defined as provided in Section 340 of the Act.

Accreditation means recognition by an accreditation body that a laboratory is competent to test the efficiency of electric motors according to the scope and procedures given in Test Method B of Institute of Electrical and Electronics Engineers (IEEE) Standard 112–1996, Test Procedure for Polyphase Induction Motors and Generators, and Test Method (1) of CSA Standard C390–93, Energy Efficient Test Methods for Three-Phase Induction Motors. (Incorporated by reference, see §431.15)

Accreditation body means an organization or entity that conducts and administers an accreditation system and grants accreditation.

Accreditation system means a set of requirements to be fulfilled by a testing laboratory, as well as rules of procedure and management, that are used to accredit laboratories.

Accredited laboratory means a testing laboratory to which accreditation has been granted.

Alternative efficiency determination method or AEDM means, with respect to an electric motor, a method of calculating the total power loss and average full load efficiency.

Average full load efficiency means the arithmetic mean of the full load efficiencies of a population of electric motors of duplicate design, where the full load efficiency of each motor in the population is the ratio (expressed as a percentage) of the motor's useful power output to its total power input when the motor is operated at its full rated load, rated voltage, and rated frequency.

Basic model means, with respect to an electric motor, all units of a given type of electric motor (or class thereof) manufactured by a single manufacturer, and which have the same rating, have electrical characteristics that are essentially identical, and do not have any differing physical or functional characteristics which affect energy consumption or efficiency. For the purpose of this definition, “rating” means one of the 113 combinations of an electric motor's horsepower (or standard kilowatt equivalent), number of poles, and open or enclosed construction, with respect to which §431.25 prescribes nominal full load efficiency standards.

Certificate of conformity means a document that is issued by a certification program, and that gives written assurance that an electric motor complies with the energy efficiency standard applicable to that motor, as specified in §431.25.

Certification program means a certification system that determines conformity by electric motors with the energy efficiency standards prescribed by and pursuant to the Act.

Certification system means a system, that has its own rules of procedure and management, for giving written assurance that a product, process, or service conforms to a specific standard or other specified requirements, and that is operated by an entity independent of both the party seeking the written assurance and the party providing the product, process or service.

CSA means CSA International.

Definite purpose motor means any motor designed in standard ratings with standard operating characteristics or standard mechanical construction for use under service conditions other than usual, such as those specified in National Electrical Manufacturers Association (NEMA) Standards Publication MG1–1993 (MG1), Motors and Generators, paragraph 14.03, “Unusual Service Conditions,” (Incorporated by reference, see §431.15) or for use on a particular type of application, and which cannot be used in most general purpose applications.

Electric motor is defined as follows:

(1) “Electric motor” means a machine which converts electrical power into rotational mechanical power and which:

(i) Is a general purpose motor, including but not limited to motors with explosion-proof construction;

(ii) Is a single speed, induction motor (MG1);

(iii) Is rated for continuous duty (MG1) operation, or is rated duty type S1 (International Electrotechnical Commission (IEC));

(iv) Contains a squirrel-cage (MG1) or cage (IEC) rotor, and has foot-mounting, including foot-mounting with flanges or detachable feet;

(v) Is built in accordance with NEMA T-frame dimensions (MG1), or IEC metric equivalents (IEC);

(vi) Has performance in accordance with NEMA Design A (MG1) or B (MG1) characteristics, or equivalent designs such as IEC Design N (IEC); and

(vii) Operates on polyphase alternating current 60-Hertz sinusoidal power, and:

(A) Is rated 230 volts or 460 volts, or both, including any motor that is rated at multi-voltages that include 230 volts or 460 volts, or

(B) Can be operated on 230 volts or 460 volts, or both.

(2) Terms in this definition followed by the parenthetical “MG1” must be construed with reference to provisions in NEMA Standards Publication MG1–1993, Motors and Generators, with Revisions 1, 2, 3 and 4, (Incorporated by reference, see §431.15) as follows:

(i) Section I, General Standards Applying to All Machines, Part 1, Referenced Standards and Definitions, paragraphs 1.16.1, 1.16.1.1, 1.17.1.1, 1.17.1.2, and 1.40.1 (Incorporated by reference, see §431.15) pertain to the terms “induction motor,” “squirrel-cage,” “NEMA Design A,” “NEMA Design B,” and “continuous duty” respectively;

(ii) Section I, General Standards Applying to All Machines, Part 4, Dimensions, Tolerances, and Mounting, paragraph 4.01 and Figures 4–1, 4–2, 4–3, and 4–4 (Incorporated by reference, see §431.15) pertain to “NEMA T-frame dimensions;”

(iii) Section II, Small (Fractional) and Medium (Integral) Machines, Part 11, Dimensions—AC and DC Small and Medium Machines, paragraphs 11.01.2, 11.31 (except the lines for frames 447T, 447TS, 449T and 449TS), 11.32, 11.34 (except the line for frames 447TC and 449TC, and the line for frames 447TSC and 449TSC), 11.35, and 11.36 (except the line for frames 447TD and 449TD, and the line for frames 447TSD and 449TSD), and Table 11–1, (Incorporated by reference, see §431.15) pertain to “NEMA T-frame dimensions;” and

(iv) Section II, Small (Fractional) and Medium (Integral) Machines, Part 12, Tests and Performance—AC and DC Motors, paragraphs 12.35.1, 12.35.5, 12.38.1, 12.39.1, and 12.40.1, and Table 12–2, (Incorporated by reference, see §431.15) pertain both to “NEMA Design A” and “NEMA Design B.”)

(3) Terms in this definition followed by the parenthetical “IEC” must be construed with reference to provisions in IEC Standards as follows:

(i) IEC Standard 60034–1 (1996), Rotating electrical machines, Part 1: Rating and performance, with Amendment 1 (1997), Section 3: Duty, clause 3.2.1 and figure 1 (Incorporated by reference, see §431.15) pertain to “duty type S1”;

(ii) IEC Standard 60050–411 (1996), International Electrotechnical Vocabulary Chapter 411: Rotating machines, sections 411–33–07 and 411–37–26, (Incorporated by reference, see §431.15) pertain to “cage”;

(iii) IEC Standard 60072–1 (1991), Dimensions and output series for rotating electrical machines—Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080, clauses 2, 3, 4.1, 6.1, 7, and 10, and Tables 1, 2 and 4, (Incorporated by reference, see §431.15) pertain to “IEC metric equivalents” to “T-frame” dimensions; and

(iv) IEC Standard 60034–12 (1980), Rotating electrical machines, Part 12: Starting performance of single-speed three-phase cage induction motors for voltages up to and including 660 V, with Amendment 1 (1992) and Amendment 2 (1995), clauses 1, 2, 3.1, 4, 5, and 6, and Tables I, II, and III, (Incorporated by reference, see §431.15) pertain to “IEC Design N.”

Enclosed motor means an electric motor so constructed as to prevent the free exchange of air between the inside and outside of the case but not sufficiently enclosed to be termed airtight.

General purpose motor means any motor which is designed in standard ratings with either:

(1) Standard operating characteristics and standard mechanical construction for use under usual service conditions, such as those specified NEMA Standards Publication MG1–1993, paragraph 14.02, “Usual Service Conditions,” (Incorporated by reference, see §431.15) and without restriction to a particular application or type of application; or

(2) Standard operating characteristics or standard mechanical construction for use under unusual service conditions, such as those specified in NEMA Standards Publication MG1–1993, paragraph 14.03, “Unusual Service Conditions,” (Incorporated by reference, see §431.15) or for a particular type of application, and which can be used in most general purpose applications.

IEC means the International Electrotechnical Commission.

IEEE means the Institute of Electrical and Electronics Engineers, Inc.

NEMA means the National Electrical Manufacturers Association.

Nominal full load efficiency means, with respect to an electric motor, a representative value of efficiency selected from Column A of Table 12–8, NEMA Standards Publication MG1–1993, (Incorporated by reference, see §431.15), that is not greater than the average full load efficiency of a population of motors of the same design.

Open motor means an electric motor having ventilating openings which permit passage of external cooling air over and around the windings of the machine.

Special purpose motor means any motor, other than a general purpose motor or definite purpose motor, which has special operating characteristics or special mechanical construction, or both, designed for a particular application.

Total power loss means that portion of the energy used by an electric motor not converted to rotational mechanical power, expressed in percent.

Test Procedures, Materials Incorporated and Methods of Determining Efficiency
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§ 431.15   Materials incorporated by reference.
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(a) General. We incorporate by reference the following test procedures into Subpart B of Part 431. The material listed in paragraph (b) of this section has been approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR 51. Any subsequent amendment to a standard by the standard-setting organization will not affect the DOE test procedures unless and until amended by DOE. Material is incorporated as it exists on the date of the approval and a notice of any change in the material will be published in the Federal Register.

(b) List of standards incorporated by reference. (1) The following provisions of National Electrical Manufacturers Association Standards Publication MG1–1993, Motors and Generators, with Revisions 1, 2, 3 and 4, IBR approved for §§431.12; 431.31 and appendix B to subpart B of Part 431:

(i) Section I, General Standards Applying to All Machines, Part 1, Referenced Standards and Definitions, paragraphs 1.16.1, 1.16.1.1, 1.17.1.1, 1.17.1.2, and 1.40.1, IBR approved for §431.12;

(ii) Section I, General Standards Applying to All Machines, Part 4, Dimensions, Tolerances, and Mounting, paragraph 4.01 and Figures 4–1, 4–2, 4–3, and 4–4, IBR approved for §431.12;

(iii) Section II, Small (Fractional) and Medium (Integral) Machines, Part 11, Dimensions—AC and DC Small and Medium Machines, paragraphs 11.01.2, 11.31 (except the lines for frames 447T, 447TS, 449T and 449TS), 11.32, 11.34 (except the line for frames 447TC and 449TC, and the line for frames 447TSC and 449TSC), 11.35, and 11.36 (except the line for frames 447TD and 449TD, and the line for frames 447TSD and 449TSD), and Table 11–1, IBR approved for §431.12;

(iv) Section II, Small (Fractional) and Medium (Integral) Machines, Part 12, Tests and Performance—AC and DC Motors, paragraphs 12.35.1, 12.35.5, 12.38.1, 12.39.1, and 12.40.1, 12.58.1, and Tables 12–2 and 12–8, IBR approved for §431.12; and

(v) Section II, Small (Fractional) and Medium (Integral) Machines, Part 14, Application Data—AC and DC Small and Medium Machines, paragraphs 14.02 and 14.03, IBR approved for §431.12.

(2) Institute of Electrical and Electronics Engineers, Inc., Standard 112–1996, Test Procedure for Polyphase Induction Motors and Generators, Test Method B, Input-Output with Loss Segregation, and the correction to the calculation at item (28) in Section 10.2 Form B-Test Method B issued by IEEE on January 20, 1998. (Note: Paragraph 2 of appendix A to subpart B of Part 431 sets forth modifications to this Standard when it is used for purposes of Part 431 and EPCA, IBR approved for §§431.12; 431.19; 431.20; appendix B to subpart B of Part 431.

(3) CSA International Standard C390–93, Energy Efficiency Test Methods for Three-Phase Induction Motors, Test Method (1), Input-Output Method With Indirect Measurement of the Stray-Load Loss and Direct Measurement of the Stator Winding (I2R), Rotor Winding (I2 R), Core and Windage-Friction Losses, IBR approved for §§431.12; 431.19; 431.20; appendix B to subpart B of Part 431.

(4) International Electrotechnical Commission Standard 60034–1 (1996), Rotating electrical machines, Part 1: Rating and performance, with Amendment 1 (1997), Section 3: Duty, clause 3.2.1 and figure 1, IBR approved for §431.12.

(5) International Electrotechnical Commission Standard 60050–411 (1996), International Electrotechnical Vocabulary Chapter 411: Rotating machines, sections 411–33–07 and 411–37–26, IBR approved for §431.12.

(6) International Electrotechnical Commission Standard 60072–1 (1991), Dimensions and Output Series for Rotating Electrical Machines—Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080, clauses 2, 3, 4.1, 6.1, 7, and 10, and Tables 1, 2 and 4, IBR approved for §431.12.

(7) International Electrotechnical Commission Standard 60034–12 (1980), Rotating Electrical Machines, Part 12: Starting performance of single-speed three-phase cage induction motors for voltages up to and including 660 V, with Amendment 1 (1992) and Amendment 2 (1995), clauses 1, 2, 3.1, 4, 5, and 6, and Tables I, II, and III, IBR approved for §431.12.

(c) Inspection of standards. The standards incorporated by reference are available for inspection at:

(1) National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.php;

(2) U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Hearings and Dockets, “Test Procedures, Labeling, and Certification Requirements for Electric Motors,” Docket No. EE–RM–96–400, Forrestal Building, 1000 Independence Avenue, SW., Washington, DC.

(d) Availability of standards. Standards incorporated by reference may be obtained from the following sources:

(1) Copies of IEEE Standard 112–1996 can be obtained from the Institute of Electrical and Electronics Engineers, Inc., 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855–1331, 1–800–678-IEEE (4333);

(2) Copies of NEMA Standards Publication MG1–1993 with Revisions 1, 2, 3, and 4, and copies of International Electrotechnical Commission standards can be obtained from Global Engineering Documents, 15 Inverness Way East, Englewood, Colorado 80112–5776, 1–800–854–7179 (within the U.S.) or (303) 397–7956 (international).

(3) Copies of CSA International Standard C390–93 can be obtained from CSA International, 5060 Spectrum Way, Mississauga, Ontario, Canada L4W5N6, (416) 747–4044;

(e) Reference standards—(1) General. The standards listed in this paragraph are referred to in the DOE procedures for testing laboratories, and recognition of accreditation bodies and certification programs but are not incorporated by reference. These sources are given here for information and guidance.

(2) List of references. (i) National Voluntary Laboratory Accreditation Program Handbooks 150, “Procedures and General Requirements,” March 1994, and 150–10, “Efficiency of Electric Motors,” August 1995. National Voluntary Laboratory Accreditation Program, National Institute of Standards and Technology, Gaithersburg, MD 20899.

(ii) ISO/IEC Guide 25, “General requirements for the competence of calibration and testing laboratories.”

(iii) ISO Guide 27, “Guidelines for corrective action to be taken by a certification body in the event of either misapplication of its mark of conformity to a product, or products which bear the mark of the certification body being found to subject persons or property to risk.”

(iv) ISO/IEC Guide 28, “General rules for a model third-party certification system for products.”

(v) ISO/IEC Guide 58, “Calibration and testing laboratory accreditation systems—General requirements for operation and recognition.”

(vi) ISO/IEC Guide 65, “General requirements for bodies operating product certification systems.”

§ 431.16   Test procedures for the measurement of energy efficiency.
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For purposes of 10 CFR Part 431 and EPCA, the test procedures for measuring the energy efficiency of an electric motor shall be the test procedures specified in appendix B to this subpart B.

§ 431.17   Determination of efficiency.
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When a party determines the energy efficiency of an electric motor in order to comply with an obligation imposed on it by or pursuant to Part C of Title III of EPCA, 42 U.S.C. 6311–6316, this Section applies. This section does not apply to enforcement testing conducted pursuant to §431.192.

(a) Provisions applicable to all electric motors—(1) General requirements. The average full load efficiency of each basic model of electric motor must be determined either by testing in accordance with §431.16 of this subpart, or by application of an alternative efficiency determination method (AEDM) that meets the requirements of paragraphs (a)(2) and (3) of this section, provided, however, that an AEDM may be used to determine the average full load efficiency of one or more of a manufacturer's basic models only if the average full load efficiency of at least five of its other basic models is determined through testing.

(2) Alternative efficiency determination method. An AEDM applied to a basic model must be:

(i) Derived from a mathematical model that represents the mechanical and electrical characteristics of that basic model, and

(ii) Based on engineering or statistical analysis, computer simulation or modeling, or other analytic evaluation of performance data.

(3) Substantiation of an alternative efficiency determination method. Before an AEDM is used, its accuracy and reliability must be substantiated as follows:

(i) The AEDM must be applied to at least five basic models that have been tested in accordance with §431.16, and

(ii) The predicted total power loss for each such basic model, calculated by applying the AEDM, must be within plus or minus ten percent of the mean total power loss determined from the testing of that basic model.

(4) Subsequent verification of an AEDM. (i) Each manufacturer shall periodically select basic models representative of those to which it has applied an AEDM, and for each basic model selected shall either:

(A) Subject a sample of units to testing in accordance with §§431.16 and 431.17(b)(2) by an accredited laboratory that meets the requirements of §431.18;

(B) Have a certification body recognized under §431.20 certify its nominal full load efficiency; or

(C) Have an independent state-registered professional engineer, who is qualified to perform an evaluation of electric motor efficiency in a highly competent manner and who is not an employee of the manufacturer, review the manufacturer's representations and certify that the results of the AEDM accurately represent the total power loss and nominal full load efficiency of the basic model.

(ii) Each manufacturer that has used an AEDM under this section shall have available for inspection by the Department of Energy records showing: the method or methods used; the mathematical model, the engineering or statistical analysis, computer simulation or modeling, and other analytic evaluation of performance data on which the AEDM is based; complete test data, product information, and related information that the manufacturer has generated or acquired pursuant to paragraphs (a)(3) and (a)(4)(i) of this section; and the calculations used to determine the average full load efficiency and total power losses of each basic model to which the AEDM was applied.

(iii) If requested by the Department, the manufacturer shall conduct simulations to predict the performance of particular basic models of electric motors specified by the Department, analyses of previous simulations conducted by the manufacturer, sample testing of basic models selected by the Department, or a combination of the foregoing.

(5) Use of a certification program or accredited laboratory. (i) A manufacturer may have a certification program, that DOE has classified as nationally recognized under §431.20, certify the nominal full load efficiency of a basic model of electric motor, and issue a certificate of conformity for the motor.

(ii) For each basic model for which a certification program is not used as described in paragraph (a)(5)(i) of this section, any testing of the motor pursuant to paragraphs (a)(1) through (3) of this section to determine its energy efficiency must be carried out in accordance with paragraph (b) of this section, in an accredited laboratory that meets the requirements of §431.18. (This includes testing of the basic model, pursuant to paragraph (a)(3)(i) of this section, to substantiate an AEDM.)

(b) Additional testing requirements applicable when a certification program is not used—(1) Selection of basic models for testing. (i) Basic models must be selected for testing in accordance with the following criteria:

(A) Two of the basic models must be among the five basic models with the highest unit volumes of production by the manufacturer in the prior year, or during the prior 12 calendar month period beginning in 1997,1 whichever is later;

1 In identifying thse five basic models, any electric motor that does not comply with §431.25 shall be excluded from consideration.

(B) The basic models should be of different horsepowers without duplication;

(C) The basic models should be of different frame number series without duplication; and

(D) Each basic model should be expected to have the lowest nominal full load efficiency among the basic models with the same rating (“rating” as used here has the same meaning as it has in the definition of “basic model”).

(ii) In any instance where it is impossible for a manufacturer to select basic models for testing in accordance with all of these criteria, the criteria shall be given priority in the order in which they are listed. Within the limits imposed by the criteria, basic models shall be selected randomly.

(2) Selection of units for testing. For each basic model selected for testing,2 a sample of units shall be selected at random and tested. The sample shall be comprised of production units of the basic model, or units that are representative of such production units. The sample size shall be not fewer than five units, except that when fewer than five units of a basic model would be produced over a reasonable period of time (approximately 180 days), then each unit shall be tested. In a test of compliance with a represented average or nominal efficiency:

2 Components of similar design may be substituted without requiring additional testing if the represented measures of energy consumption continue to satisfy the applicable sampling provision.

(i) The average full-load efficiency of the sample X which is defined by

where Xi is the measured full-load efficiency of unit i and n is the number of units tested, shall satisfy the condition:

where RE is the represented nominal full-load efficiency, and

(ii) The lowest full-load efficiency in the sample Xmin, which is defined by

shall satisfy the condition

(3) Substantiation of an alternative efficiency determination method. The basic models tested under §431.17(a)(3)(i) must be selected for testing in accordance with paragraph (b)(1) of this section, and units of each such basic model must be tested in accordance with paragraph (b)(2) of this section by an accredited laboratory that meets the requirements of §431.18.

§ 431.18   Testing laboratories.
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(a) Testing pursuant to §431.17(a)(5)(ii) must be conducted in an accredited laboratory for which the accreditation body was:

(1) The National Institute of Standards and Technology/National Voluntary Laboratory Accreditation Program (NIST/NVLAP); or

(2) A laboratory accreditation body having a mutual recognition arrangement with NIST/NVLAP; or

(3) An organization classified by the Department, pursuant to §431.19, as an accreditation body.

(b) NIST/NVLAP is under the auspices of the National Institute of Standards and Technology (NIST) which is part of the U.S. Department of Commerce. NIST/NVLAP accreditation is granted on the basis of conformance with criteria published in 15 CFR Part 285, The National Voluntary Laboratory Accreditation Program Procedures and General Requirements. NIST Handbook 150–10, August 1995, presents the technical requirements of the National Voluntary Laboratory Accreditation Program for the Efficiency of Electric Motors field of accreditation. This handbook supplements NIST Handbook 150, National Voluntary Laboratory Accreditation Program Procedures and General Requirements, which contains 15 CFR Part 285 plus all general NIST/NVLAP procedures, criteria, and policies. Changes in NIST/NVLAP's criteria, procedures, policies, standards or other bases for granting accreditation, occurring subsequent to the initial effective date of 10 CFR Part 431, shall not apply to accreditation under this Part unless approved in writing by the Department of Energy. Information regarding NIST/NVLAP and its Efficiency of Electric Motors Program (EEM) can be obtained from NIST/NVLAP, 100 Bureau Drive, Mail Stop 2140, Gaithersburg, MD 20899–2140, telephone (301) 975–4016, or telefax (301) 926–2884.

§ 431.19   Department of Energy recognition of accreditation bodies.
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(a) Petition. To be classified by the Department of Energy as an accreditation body, an organization must submit a petition to the Department requesting such classification, in accordance with paragraph (c) of this section and §431.21. The petition must demonstrate that the organization meets the criteria in paragraph (b) of this section.

(b) Evaluation criteria. To be classified as an accreditation body by the Department, the organization must meet the following criteria:

(1) It must have satisfactory standards and procedures for conducting and administering an accreditation system and for granting accreditation. This must include provisions for periodic audits to verify that the laboratories receiving its accreditation continue to conform to the criteria by which they were initially accredited, and for withdrawal of accreditation where such conformance does not occur, including failure to provide accurate test results.

(2) It must be independent of electric motor manufacturers, importers, distributors, private labelers or vendors. It cannot be affiliated with, have financial ties with, be controlled by, or be under common control with any such entity.

(3) It must be qualified to perform the accrediting function in a highly competent manner.

(4) It must be expert in the content and application of the test procedures and methodologies in IEEE Standard 112–1996 Test Method B and CSA Standard C390–93 Test Method (1), (Incorporated by reference, see §431.15) or similar procedures and methodologies for determining the energy efficiency of electric motors.

(c) Petition format. Each petition requesting classification as an accreditation body must contain a narrative statement as to why the organization meets the criteria set forth in paragraph (b) of this section, must be signed on behalf of the organization by an authorized representative, and must be accompanied by documentation that supports the narrative statement. The following provides additional guidance:

(1) Standards and procedures. A copy of the organization's standards and procedures for operating an accreditation system and for granting accreditation should accompany the petition.

(2) Independent status. The petitioning organization should identify and describe any relationship, direct or indirect, that it has with an electric motor manufacturer, importer, distributor, private labeler, vendor, trade association or other such entity, as well as any other relationship it believes might appear to create a conflict of interest for it in performing as an accreditation body for electric motor testing laboratories. It should explain why it believes such relationship(s) would not compromise its independence as an accreditation body.

(3) Qualifications to do accrediting. Experience in accrediting should be discussed and substantiated by supporting documents. Of particular relevance would be documentary evidence that establishes experience in the application of guidelines contained in the ISO/IEC Guide 58, Calibration and testing laboratory accreditation systems—General requirements for operation and recognition, as well as experience in overseeing compliance with the guidelines contained in the ISO/IEC Guide 25, General Requirements for the Competence of Calibration and Testing Laboratories.

(4) Expertise in electric motor test procedures. The petition should set forth the organization's experience with the test procedures and methodologies in IEEE Standard 112–1996 Test Method B and CSA Standard C390–93 Test Method (1), (Incorporated by reference, see §431.15) and with similar procedures and methodologies. This part of the petition should include description of prior projects, qualifications of staff members, and the like. Of particular relevance would be documentary evidence that establishes experience in applying the guidelines contained in the ISO/IEC Guide 25, General Requirements for the Competence of Calibration and Testing Laboratories, to energy efficiency testing for electric motors.

(d) Disposition. The Department will evaluate the petition in accordance with §431.21, and will determine whether the applicant meets the criteria in paragraph (b) of this section to be classified as an accrediting body.

§ 431.20   Department of Energy recognition of nationally recognized certification programs.
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(a) Petition. For a certification program to be classified by the Department of Energy as being nationally recognized in the United States for the purposes of Section 345(c) of EPCA (“nationally recognized”), the organization operating the program must submit a petition to the Department requesting such classification, in accordance with paragraph (c) of this Section and §431.21. The petition must demonstrate that the program meets the criteria in paragraph (b) of this section.

(b) Evaluation criteria. For a certification program to be classified by the Department as nationally recognized, it must meet the following criteria:

(1) It must have satisfactory standards and procedures for conducting and administering a certification system, including periodic follow up activities to assure that basic models of electric motor continue to conform to the efficiency levels for which they were certified, and for granting a certificate of conformity.

(2) It must be independent of electric motor manufacturers, importers, distributors, private labelers or vendors. It cannot be affiliated with, have financial ties with, be controlled by, or be under common control with any such entity.

(3) It must be qualified to operate a certification system in a highly competent manner.

(4) It must be expert in the content and application of the test procedures and methodologies in IEEE Standard 112–1996 Test Method B and CSA Standard C390–93 Test Method (1), (Incorporated by reference, see §431.15) or similar procedures and methodologies for determining the energy efficiency of electric motors. It must have satisfactory criteria and procedures for the selection and sampling of electric motors tested for energy efficiency.

(c) Petition format. Each petition requesting classification as a nationally recognized certification program must contain a narrative statement as to why the program meets the criteria listed in paragraph (b) of this section, must be signed on behalf of the organization operating the program by an authorized representative, and must be accompanied by documentation that supports the narrative statement. The following provides additional guidance as to the specific criteria:

(1) Standards and procedures. A copy of the standards and procedures for operating a certification system and for granting a certificate of conformity should accompany the petition.

(2) Independent status. The petitioning organization should identify and describe any relationship, direct or indirect, that it or the certification program has with an electric motor manufacturer, importer, distributor, private labeler, vendor, trade association or other such entity, as well as any other relationship it believes might appear to create a conflict of interest for the certification program in operating a certification system for compliance by electric motors with energy efficiency standards. It should explain why it believes such relationship would not compromise its independence in operating a certification program.

(3) Qualifications to operate a certification system. Experience in operating a certification system should be discussed and substantiated by supporting documents. Of particular relevance would be documentary evidence that establishes experience in the application of guidelines contained in the ISO/IEC Guide 65, General requirements for bodies operating product certification systems, ISO/IEC Guide 27, Guidelines for corrective action to be taken by a certification body in the event of either misapplication of its mark of conformity to a product, or products which bear the mark of the certification body being found to subject persons or property to risk, and ISO/IEC Guide 28, General rules for a model third-party certification system for products, as well as experience in overseeing compliance with the guidelines contained in the ISO/IEC Guide 25, General requirements for the competence of calibration and testing laboratories.

(4) Expertise in electric motor test procedures. The petition should set forth the program's experience with the test procedures and methodologies in IEEE Standard 112–1996 Test Method B and CSA Standard C390–93 Test Method (1), (Incorporated by reference, see §431.15) and with similar procedures and methodologies. This part of the petition should include description of prior projects, qualifications of staff members, and the like. Of particular relevance would be documentary evidence that establishes experience in applying guidelines contained in the ISO/IEC Guide 25, General requirements for the competence of calibration and testing laboratories, to energy efficiency testing for electric motors.

(d) Disposition. The Department will evaluate the petition in accordance with §431.21, and will determine whether the applicant meets the criteria in paragraph (b) of this section for classification as a nationally recognized certification program.

§ 431.21   Procedures for recognition and withdrawal of recognition of accreditation bodies and certification programs.
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(a) Filing of petition. Any petition submitted to the Department pursuant to §§431.19(a) or 431.20(a), shall be entitled “Petition for Recognition” (“Petition”) and must be submitted, in triplicate to the Assistant Secretary for Energy Efficiency and Renewable Energy, U.S. Department of Energy, Forrestal Building, 1000 Independence Avenue, SW., Washington, DC 20585–0121. In accordance with the provisions set forth in 10 CFR 1004.11, any request for confidential treatment of any information contained in such a Petition or in supporting documentation must be accompanied by a copy of the Petition or supporting documentation from which the information claimed to be confidential has been deleted.

(b) Public notice and solicitation of comments. DOE shall publish in the Federal Register the Petition from which confidential information, as determined by DOE, has been deleted in accordance with 10 CFR 1004.11 and shall solicit comments, data and information on whether the Petition should be granted. The Department shall also make available for inspection and copying the Petition's supporting documentation from which confidential information, as determined by DOE, has been deleted in accordance with 10 CFR 1004.11. Any person submitting written comments to DOE with respect to a Petition shall also send a copy of such comments to the petitioner.

(c) Responsive statement by the petitioner. A petitioner may, within 10 working days of receipt of a copy of any comments submitted in accordance with paragraph (b) of this section, respond to such comments in a written statement submitted to the Assistant Secretary for Energy Efficiency and Renewable Energy. A petitioner may address more than one set of comments in a single responsive statement.

(d) Public announcement of interim determination and solicitation of comments. The Assistant Secretary for Energy Efficiency and Renewable Energy shall issue an interim determination on the Petition as soon as is practicable following receipt and review of the Petition and other applicable documents, including, but not limited to, comments and responses to comments. The petitioner shall be notified in writing of the interim determination. DOE shall also publish in the Federal Register the interim determination and shall solicit comments, data and information with respect to that interim determination. Written comments and responsive statements may be submitted as provided in paragraphs (b) and (c) of this section.

(e) Public announcement of final determination. The Assistant Secretary for Energy Efficiency and Renewable Energy shall as soon as practicable, following receipt and review of comments and responsive statements on the interim determination, publish in the Federal Register a notice of final determination on the Petition.

(f) Additional information. The Department may, at any time during the recognition process, request additional relevant information or conduct an investigation concerning the Petition. The Department's determination on a Petition may be based solely on the Petition and supporting documents, or may also be based on such additional information as the Department deems appropriate.

(g) Withdrawal of recognition—(1) Withdrawal by the Department. If the Department believes that an accreditation body or certification program that has been recognized under §§431.19 or 431.20, respectively, is failing to meet the criteria of paragraph (b) of the section under which it is recognized, the Department will so advise such entity and request that it take appropriate corrective action. The Department will give the entity an opportunity to respond. If after receiving such response, or no response, the Department believes satisfactory correction has not been made, the Department will withdraw its recognition from that entity.

(2) Voluntary withdrawal. An accreditation body or certification program may withdraw itself from recognition by the Department by advising the Department in writing of such withdrawal. It must also advise those that use it (for an accreditation body, the testing laboratories, and for a certification organization, the manufacturers) of such withdrawal.

(3) Notice of withdrawal of recognition. The Department will publish in the Federal Register a notice of any withdrawal of recognition that occurs pursuant to this paragraph.

Energy Conservation Standards
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§ 431.25   Energy conservation standards and effective dates.
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(a) Each electric motor manufactured (alone or as a component of another piece of equipment) after October 24, 1997, or in the case of an electric motor which requires listing or certification by a nationally recognized safety testing laboratory, after October 24, 1999, shall have a nominal full load efficiency of not less than the following:

 ----------------------------------------------------------------------------------------------------------------                                                            Nominal full load efficiency                                   -----------------------------------------------------------------------------    Motor horsepower/ standard          Open motors (number of poles)        Enclosed motors (number of poles)        kilowatt equivalent        -----------------------------------------------------------------------------                                         6            4            2            6            4            2----------------------------------------------------------------------------------------------------------------1 / .75...........................         80.0         82.5  ...........         80.0         82.5         75.51.5 / 1.1.........................         84.0         84.0         82.5         85.5         84.0         82.52 / 1.5...........................         85.5         84.0         84.0         86.5         84.0         84.03 / 2.2...........................         86.5         86.5         84.0         87.5         87.5         85.55 / 3.7...........................         87.5         87.5         85.5         87.5         87.5         87.57.5 / 5.5.........................         88.5         88.5         87.5         89.5         89.5         88.510 / 7.5..........................         90.2         89.5         88.5         89.5         89.5         89.515 / 11...........................         90.2         91.0         89.5         90.2         91.0         90.220 / 15...........................         91.0         91.0         90.2         90.2         91.0         90.225 / 18.5.........................         91.7         91.7         91.0         91.7         92.4         91.030 / 22...........................         92.4         92.4         91.0         91.7         92.4         91.040 / 30...........................         93.0         93.0         91.7         93.0         93.0         91.750 / 37...........................         93.0         93.0         92.4         93.0         93.0         92.460 / 45...........................         93.6         93.6         93.0         93.6         93.6         93.075 / 55...........................         93.6         94.1         93.0         93.6         94.1         93.0100 / 75..........................         94.1         94.1         93.0         94.1         94.5         93.6125 / 90..........................         94.1         94.5         93.6         94.1         94.5         94.5150 / 110.........................         94.5         95.0         93.6         95.0         95.0         94.5200 / 150.........................         94.5         95.0         94.5         95.0         95.0         95.0----------------------------------------------------------------------------------------------------------------

(b) For purposes of determining the required minimum nominal full load efficiency of an electric motor that has a horsepower or kilowatt rating between two horsepowers or kilowattages listed consecutively in paragraph (a) of this section, each such motor shall be deemed to have a horsepower or kilowatt rating that is listed in paragraph (a) of this section. The rating that the motor is deemed to have shall be determined as follows:

(1) A horsepower at or above the midpoint between the two consecutive horsepowers shall be rounded up to the higher of the two horsepowers;

(2) A horsepower below the midpoint between the two consecutive horsepowers shall be rounded down to the lower of the two horsepowers, or

(3) A kilowatt rating shall be directly converted from kilowatts to horsepower using the formula, 1 kilowatt = (1/0.746) horsepower, without calculating beyond three significant decimal places, and the resulting horsepower shall be rounded in accordance with paragraphs (b)(1) or (b)(2) of this section, whichever applies.

(c) This section does not apply to definite purpose motors, special purpose motors, and those motors exempted by the Secretary.

§ 431.26   Preemption of State regulations.
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Any State regulation providing for any energy conservation standard, or other requirement with respect to the energy efficiency or energy use, of an electric motor that is not identical to a Federal standard in effect under this subpart is preempted by that standard, except as provided for in Section 345(a) and 327(b) and (c) of the Act.

Labeling
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§ 431.30   Applicability of labeling requirements.
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The labeling rules in §431.31, established pursuant to Section 344 of EPCA, 42 U.S.C. 6315, apply only to electric motors manufactured after October 5, 2000.

§ 431.31   Labeling requirements.
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(a) Electric motor nameplate—(1) Required information. The permanent nameplate of an electric motor for which standards are prescribed in §431.25 must be marked clearly with the following information:

(i) The motor's nominal full load efficiency (as of the date of manufacture), derived from the motor's average full load efficiency as determined pursuant to this subpart; and

(ii) A Compliance Certification number (“CC number”) supplied by DOE to the manufacturer or private labeler, pursuant to §431.36(f), and applicable to that motor. Such CC number must be on the nameplate of a motor beginning 90 days after either:

(A) The manufacturer or private labeler has received the number upon submitting a Compliance Certification covering that motor, or

(B) The expiration of 21 days from DOE's receipt of a Compliance Certification covering that motor, if the manufacturer or private labeler has not been advised by DOE that the Compliance Certification fails to satisfy §431.36.

(2) Display of required information. All orientation, spacing, type sizes, type faces, and line widths to display this required information shall be the same as or similar to the display of the other performance data on the motor's permanent nameplate. The nominal full load efficiency shall be identified either by the term “Nominal Efficiency” or “Nom. Eff.” or by the terms specified in paragraph 12.58.2 of NEMA MG1–1993, (Incorporated by reference, see §431.15) as for example “NEMA Nom. Eff. ____.” The DOE number shall be in the form “CC____.

(3) Optional display. The permanent nameplate of an electric motor, a separate plate, or decalcomania, may be marked with the encircled lower case letters “ee”, for example,

View or download PDF

or with some comparable designation or logo, if the motor meets the applicable standard prescribed in §431.25, as determined pursuant to this subpart, and is covered by a Compliance Certification that satisfies §431.36.

(b) Disclosure of efficiency information in marketing materials. (1) The same information that must appear on an electric motor's permanent nameplate pursuant to paragraph (a)(1) of this section, shall be prominently displayed:

(i) On each page of a catalog that lists the motor; and

(ii) In other materials used to market the motor.

(2) The “ee” logo, or other similar logo or designations, may also be used in catalogs and other materials to the same extent they may be used on labels under paragraph (a)(3) of this section.

§ 431.32   Preemption of State regulations.
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The provisions of §431.31 supersede any State regulation to the extent required by Section 327 of the Act. Pursuant to the Act, all State regulations that require the disclosure for any electric motor of information with respect to energy consumption, other than the information required to be disclosed in accordance with this part, are superseded.

Certification
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§ 431.35   Applicability of certification requirements.
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Section 431.36 sets forth the procedures for manufacturers to certify that electric motors comply with the applicable energy efficiency standards set forth in this subpart.

§ 431.36   Compliance Certification.
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(a) General. Beginning April 26, 2003, a manufacturer or private labeler shall not distribute in commerce any basic model of an electric motor which is subject to an energy efficiency standard set forth in this subpart unless it has submitted to the Department a Compliance Certification certifying, in accordance with the provisions of this section, that the basic model meets the requirements of the applicable standard. The representations in the Compliance Certification must be based upon the basic model's energy efficiency as determined in accordance with the applicable requirements of this subpart. This means, in part, that either:

(1) The representations as to the basic model must be based on use of a certification organization; or

(2) Any testing of the basic model on which the representations are based must be conducted at an accredited laboratory.

(b) Required contents—(1) General representations. Each Compliance Certification must certify that:

(i) The nominal full load efficiency for each basic model of electric motor distributed is not less than the minimum nominal full load efficiency required for that motor by §431.25;

(ii) All required determinations on which the Compliance Certification is based were made in compliance with the applicable requirements prescribed in this subpart;

(iii) All information reported in the Compliance Certification is true, accurate, and complete; and

(iv) The manufacturer or private labeler is aware of the penalties associated with violations of the Act and the regulations thereunder, and of 18 U.S.C. 1001 which prohibits knowingly making false statements to the Federal Government.

(2) Specific data. (i) For each rating of electric motor (as the term “rating” is defined in the definition of basic model) which a manufacturer or private labeler distributes, the Compliance Certification must report the nominal full load efficiency, determined pursuant to §§431.16 and 431.17, of the least efficient basic model within that rating.

(ii) The Compliance Certification must identify the basic models on which actual testing has been performed to meet the requirements of §431.17.

(iii) The format for a Compliance Certification is set forth in appendix C of this subpart.

(c) Optional contents. In any Compliance Certification, a manufacturer or private labeler may at its option request that DOE provide it with a unique Compliance Certification number (“CC number”) for any brand name, trademark or other label name under which the manufacturer or private labeler distributes electric motors covered by the Certification. Such a Compliance Certification must also identify all other names, if any, under which the manufacturer or private labeler distributes electric motors, and to which the request does not apply.

(d) Signature and submission. A manufacturer or private labeler must submit the Compliance Certification either on its own behalf, signed by a corporate officer of the company, or through a third party (for example, a trade association or other authorized representative) acting on its behalf. Where a third party is used, the Compliance Certification must identify the official of the manufacturer or private labeler who authorized the third party to make representations on the company's behalf, and must be signed by a corporate official of the third party. The Compliance Certification must be submitted to the Department by certified mail, to Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Building Technologies (EE–2J), Forrestal Building, 1000 Independence Avenue, SW., Washington, DC 20585–0121.

(e) New basic models. For electric motors, a Compliance Certification must be submitted for a new basic model only if the manufacturer or private labeler has not previously submitted to DOE a Compliance Certification, that meets the requirements of this section, for a basic model that has the same rating as the new basic model, and that has a lower nominal full load efficiency than the new basic model.

(f) Response to Compliance Certification; Compliance Certification Number (CC number)—(1) DOE processing of Certification. Promptly upon receipt of a Compliance Certification, the Department will determine whether the document contains all of the elements required by this section, and may, in its discretion, determine whether all or part of the information provided in the document is accurate. The Department will then advise the submitting party in writing either that the Compliance Certification does not satisfy the requirements of this section, in which case the document will be returned, or that the Compliance Certification satisfies this section. The Department will also advise the submitting party of the basis for its determination.

(2) Issuance of CC number(s). (i) Initial Compliance Certification. When DOE advises that the initial Compliance Certification submitted by or on behalf of a manufacturer or private labeler is acceptable, either:

(A) DOE will provide a single unique CC number, “CC____,” to the manufacturer or private labeler, and such CC number shall be applicable to all electric motors distributed by the manufacturer or private labeler, or

(B) When required by paragraph (f)(3) of this section, DOE will provide more than one CC number to the manufacturer or private labeler.

(ii) Subsequent Compliance Certification. When DOE advises that any other Compliance Certification is acceptable, it will provide a unique CC number for any brand name, trademark or other name when required by paragraph (f)(3) of this section.

(iii) When DOE declines to provide a CC number as requested by a manufacturer or private labeler in accordance with §431.36(c), DOE will advise the requester of the reasons for such refusal.

(3) Issuance of two or more CC numbers. (i) DOE will provide a unique CC number for each brand name, trademark or other label name for which a manufacturer or private labeler requests such a number in accordance with §431.36(c), except as follows. DOE will not provide a CC number for any brand name, trademark or other label name

(A) For which DOE has previously provided a CC number, or

(B) That duplicates or overlaps with other names under which the manufacturer or private labeler sells electric motors.

(ii) Once DOE has provided a CC number for a particular name, that shall be the only CC number applicable to all electric motors distributed by the manufacturer or private labeler under that name.

(iii) If the Compliance Certification in which a manufacturer or private labeler requests a CC number is the initial Compliance Certification submitted by it or on its behalf, and it distributes electric motors not covered by the CC number(s) DOE provides in response to the request(s), DOE will also provide a unique CC number that shall be applicable to all of these other motors.

Appendix A to Subpart B of 10 CFR Part 431, Policy Statement for Electric Motors Covered Under the Energy Policy and Conservation Act
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This is a reprint of a policy statement which was published on November 5, 1997 at 62 FR 59978.

Policy Statement for Electric Motors Covered Under the Energy Policy and Conservation Act

I. Introduction

The Energy Policy and Conservation Act (EPCA), 42 U.S.C. 6311, et seq., establishes energy efficiency standards and test procedures for certain commercial and industrial electric motors manufactured (alone or as a component of another piece of equipment) after October 24, 1997, or, in the case of an electric motor which requires listing or certification by a nationally recognized safety testing laboratory, after October 24, 1999.1 EPCA also directs the Department of Energy (DOE or Department) to implement the statutory test procedures prescribed for motors, and to require efficiency labeling of motors and certification that covered motors comply with the standards.

1 The term “manufacture” means “to manufacture, produce, assemble or import.” EPCA §321(10). Thus, the standards apply to motors produced, assembled, imported or manufactured after these statutory deadlines.

Section 340(13)(A) of EPCA defines the term “electric motor” based essentially on the construction and rating system in the National Electrical Manufacturers Association (NEMA) Standards Publication MG1. Sections 340(13)(B) and (c) of EPCA define the terms “definite purpose motor” and “special purpose motor,” respectively, for which the statute prescribes no efficiency standards.

In its proposed rule to implement the EPCA provisions that apply to motors (61 FR 60440, November 27, 1996), DOE has proposed to clarify the statutory definition of “electric motor,” to mean a machine which converts electrical power into rotational mechanical power and which: (1) Is a general purpose motor, including motors with explosion-proof construction2 ; (2) is a single speed, induction motor; (3) is rated for continuous duty operation, or is rated duty type S–1 (IEC)3 ; (4) contains a squirrel-cage or cage (IEC) rotor; (5) has foot-mounting, including foot-mounting with flanges or detachable feet; (6) is built in accordance with NEMA T-frame dimensions, or IEC metric equivalents (IEC); (7) has performance in accordance with NEMA Design A or B characteristics, or equivalent designs such as IEC Design N (IEC); and (8) operates on polyphase alternating current 60-Hertz sinusoidal power, and is (i) rated 230 volts or 460 volts, or both, including any motor that is rated at multi-voltages that include 230 volts or 460 volts, or (ii) can be operated on 230 volts or 460 volts, or both.

2 Section 342(b)(1) of EPCA recognizes that EPCA's efficiency standards cover “motors which require listing or certification by a nationally recognized safety testing laboratory.” This applies, for example, to explosion-proof motors which are otherwise general purpose motors.

3 Terms followed by the parenthetical “IEC” are referred to in the International Electrotechnical Commission (IEC) Standard 34–1. Such terms are included in DOE's proposed definition of “electric motor” because DOE believes EPCA's efficiency requirements apply to metric system motors that conform to IEC Standard 34, and that are identical or equivalent to motors constructed in accordance with NEMA MG1 and covered by the statute.

Notwithstanding the clarification provided in the proposed rule, there still appears to be uncertainty as to which motors EPCA covers. It is widely understood that the statute covers “general purpose” motors that are manufactured for a variety of applications, and that meet EPCA's definition of “electric motor.” Many modifications, however, can be made to such generic motors. Motor manufacturers have expressed concern as to precisely which motors with such modifications are covered under the statute, and as to whether manufacturers will be able to comply with the statute by October 25, 1997 with respect to all of these covered motors. Consequently, motor manufacturers have requested that the Department provide additional guidance as to which types of motors are “electric motors,” “definite purpose motors,” and “special purpose motors” under EPCA. The policy statement that follows is based upon input from motor manufacturers and energy efficiency advocates, and provides such guidance.

II. Guidelines for Determining Whether a Motor Is Covered by EPCA

A. General

EPCA specifies minimum nominal full-load energy efficiency standards for 1 to 200 horsepower electric motors, and, to measure compliance with those standards, prescribes use of the test procedures in NEMA Standard MG1 and Institute of Electrical and Electronics Engineers, Inc., (IEEE) Standard 112. In DOE's view, as stated in Assistant Secretary Ervin's letter of May 9, 1996, to NEMA's Malcolm O'Hagan, until DOE's regulations become effective, manufacturers can establish compliance with these EPCA requirements through use of competent and reliable procedures or methods that give reasonable assurance of such compliance. So long as these criteria are met, manufacturers may conduct required testing in their own laboratories or in independent laboratories, and may employ alternative correlation methods (in lieu of actual testing) for some motors. Manufacturers may also establish their compliance with EPCA standards and test procedures through use of third party certification or verification programs such as those recognized by Natural Resources Canada. Labeling and certification requirements will become effective only after DOE has promulgated a final rule prescribing such requirements.

Motors with features or characteristics that do not meet the statutory definition of “electric motor” are not covered, and therefore are not required to meet EPCA requirements. Examples include motors without feet and without provisions for feet, and variable speed motors operated on a variable frequency power supply. Similarly, multi speed motors and variable speed motors, such as inverter duty motors, are not covered equipment, based on their intrinsic design for use at variable speeds. However, NEMA Design A or B motors that are single speed, meet all other criteria under the definitions in EPCA for covered equipment, and can be used with an inverter in variable speed applications as an additional feature, are covered equipment under EPCA. In other words, being suitable for use on an inverter by itself does not exempt a motor from EPCA requirements.

Section 340(13)(F) of EPCA, defines a “small electric motor” as “a NEMA general purpose alternating current single-speed induction motor, built in a two-digit frame number series in accordance with NEMA Standards Publication MG 1–1987.” Section 346 of EPCA requires DOE to prescribe testing requirements and efficiency standards only for those small electric motors for which the Secretary determines that standards are warranted. The Department has not yet made such a determination.

B. Electrical Features

As noted above, the Department's proposed definition of “electric motor” provides in part that it is a motor that “operates on polyphase alternating current 60-Hertz sinusoidal power, and * * * can be operated on 230 volts or 460 volts, or both.” In DOE's view, “can be operated” implicitly means that the motor can be operated successfully. According to NEMA Standards Publication MG1–1993, paragraph 12.44, “Variations from Rated Voltage and Rated Frequency,” alternating-current motors must operate successfully under running conditions at rated load with a variation in the voltage or the frequency up to the following: Plus or minus 10 percent of rated voltage, with rated frequency for induction motors;4 plus or minus 5 percent of rated frequency, with rated voltage; and a combined variation in voltage and frequency of 10 percent (sum of absolute values) of the rated values, provided the frequency variation does not exceed plus or minus 5 percent of rated frequency. DOE believes that, for purposes of determining whether a motor meets EPCA's definition of “electric motor,” these criteria should be used to determine when a motor that is not rated at 230 or 460 volts or 60 Hertz can be operated at such voltage and frequency.5

4 For example, a motor that is rated at 220 volts should operate successfully on 230 volts, since 220 + .10(220) = 242 volts. A 208 volt motor, however, would not be expected to operate successfully on 230 volts, since 208 + .10(208) = 228.8 volts.

5 The Department understands that a motor that can operate at such voltage and frequency, based on variations defined for successful operation, will not necessarily perform in accordance with the industry standards established for operation at the motor's rated voltage and frequency. In addition, under the test procedures prescribed by EPCA, motors are to be tested at their rated values. Therefore, in DOE's view a motor that is not rated for 230 or 460 volts, or 60 Hertz, but that can be successfully operated at these levels, must meet the energy efficiency requirements at its rated voltage(s) and frequency. DOE also notes that when a motor is rated to include a wider voltage range that includes 230/460 volts, the motor should meet the energy efficiency requirements at 230 volts or 460 volts.

NEMA Standards Publication MG1 categorizes electrical modifications to motors according to performance characteristics that include locked rotor torque, breakdown torque, pull-up torque, locked rotor current, and slip at rated load, and assigns design letters, such as Design A, B, C, D, or E, to identify various combinations of such electrical performance characteristics. Under Section 340(13)(A) of EPCA, electric motors subject to EPCA efficiency requirements include only motors that fall within NEMA “Design A and B * * * as defined in [NEMA] Standards Publication MG1–1987.” As to locked rotor torque, for example, MG1 specifies a minimum performance value for a Design A or B motor of a given speed and horsepower, and somewhat higher minimum values for Design C and D motors of the same speed and horsepower. The Department understands that, under MG1, the industry classifies a motor as Design A or B if it has a locked rotor torque at or above the minimum for A and B but below the minimum for Design C, so long as it otherwise meets the criteria for Design A or B. Therefore, in the Department's view, such a motor is covered by EPCA's requirements for electric motors. By contrast a motor that meets or exceeds the minimum locked rotor torque for Design C or D is not covered by EPCA. In sum, if a motor has electrical modifications that meet Design A or B performance requirements it is covered by EPCA, and if its characteristics meet Design C, D or E it is not covered.

C. Size

Motors designed for use on a particular type of application which are in a frame size that is one or more frame series larger than the frame size assigned to that rating by sections 1.2 and 1.3 of NEMA Standards Publication MG 13–1984 (R1990), “Frame Assignments for Alternating Current Integral-Horsepower Induction Motors,” are not, in the Department's view, usable in most general purpose applications. This is due to the physical size increase associated with a frame series change. A frame series is defined as the first two digits of the frame size designation. For example, 324T and 326T are both in the same frame series, while 364T is in the next larger frame series. Hence, in the Department's view, a motor that is of a larger frame series than normally assigned to that standard rating of motor is not covered by EPCA. A physically larger motor within the same frame series would be covered, however, because it would be usable in most general purpose applications.

Motors built in a T-frame series or a T-frame size smaller than that assigned by MG 13–1984 (R1990) are also considered usable in most general purpose applications. This is because simple modifications can generally be made to fit a smaller motor in place of a motor with a larger frame size assigned in conformity with NEMA MG 13. Therefore, DOE believes that such smaller motors are covered by EPCA.

D. Motors With Seals

Some electric motors have seals to prevent ingress of water, dust, oil, and other foreign materials into the motor. DOE understands that, typically, a manufacturer will add seals to a motor that it manufactures, so that it will sell two motors that are identical except that one has seals and the other does not. In such a situation, if the motor without seals is “general purpose” and covered by EPCA's efficiency requirements, then the motor with seals will also be covered because it can still be used in most general purpose applications. DOE understands, however, that manufacturers previously believed motors with seals were not covered under EPCA, in part because IEEE Standard 112, “Test Procedure for Polyphase Induction Motors and Generators,” prescribed by EPCA, does not address how to test a motor with seals installed.

The efficiency rating of such a motor, if determined with seals installed and when the motor is new, apparently would significantly understate the efficiency of the motor as operated. New seals are stiff, and provide friction that is absent after their initial break-in period. DOE understands that, after this initial period, the efficiency ratings determined for the same motor with and without seals would be virtually identical. To construe EPCA, therefore, as requiring such separate efficiency determinations would impose an unnecessary burden on manufacturers.

In light of the foregoing, the Department believes that EPCA generally permits the efficiency of a motor with seals to be determined without the seals installed. Furthermore, notwithstanding the prior belief that such motors are not covered by EPCA, use of this approach to determining efficiency will enable manufacturers to meet EPCA's standards with respect to covered motors with seals by the date the standards go into effect on October 25, 1997.

III. Discussion of How DOE Would Apply EPCA Definitions, Using the Foregoing Guidelines

Using the foregoing guidelines, the attached matrix provides DOE's view as to which motors with common features are covered by EPCA. Because manufacturers produce many basic models that have many modifications of generic general purpose motors, the Department does not represent that the matrix is all-inclusive. Rather it is a set of examples demonstrating how DOE would apply EPCA definitions, as construed by the above guidelines, to various motor types. By extension of these examples, most motors currently in production, or to be designed in the future, could probably be classified. The matrix classifies motors into five categories, which are discussed in the following passages.

Category I—For “electric motors” (manufactured alone or as a component of another piece of equipment) in Category I, DOE will enforce EPCA efficiency standards and test procedures beginning on October 25, 1997.

The Department understands that some motors essentially are relatively simple modifications of generic general purpose motors. Modifications could consist, for example, of minor changes such as the addition of temperature sensors or a heater, the addition of a shaft extension and a brake disk from a kit, or changes in exterior features such as the motor housing. Such motors can still be used for most general purpose applications, and the modifications have little or no effect on motor performance. Nor do the modifications affect energy efficiency.

Category II—For certain motors that are “definite purpose” according to present industry practice, but that can be used in most general purpose applications, DOE will generally enforce EPCA efficiency standards and test procedures beginning no later than October 25, 1999.

General Statement

EPCA does not prescribe standards and test procedures for “definite purpose motors.” Section 340(13)(B) of EPCA defines the term “definite purpose motor” as “any motor designed in standard ratings with standard operating characteristics or standard mechanical construction for use under service conditions other than usual or for use on a particular type of application and which cannot be used in most general purpose applications.” [Emphasis added.] Except, significantly, for exclusion of the italicized language, the industry definition of “definite purpose motor,” set forth in NEMA MG1, is identical to the foregoing.

Category II consists of electric motors with horsepower ratings that fall between the horsepower ratings in Section 342(b)(1) of EPCA, thermally protected motors, and motors with roller bearings. As with motors in Category I, these motors are essentially modifications of generic general purpose motors. Generally, however, the modifications contained in these motors are more extensive and complex than the modifications in Category I motors. These Category II motors have been considered “definite purpose” in common industry parlance, but are covered equipment under EPCA because they can be used in most general purpose applications.

According to statements provided during the January 15, 1997, Public Hearing, Tr. pgs. 238–239, Category II motors were, until recently, viewed by most manufacturers as definite purpose motors, consistent with the industry definition that did not contain the clause “which cannot be used in most general purpose applications.” Hence, DOE understands that many manufacturers assumed these motors were not subject to EPCA's efficiency standards. During the period prior and subsequent to the hearing, discussions among manufacturers resulted in a new understanding that such motors are general purpose under EPCA, since they can be used in most general purpose applications. Thus, the industry only recently recognized that such motors are covered under EPCA. Although the statutory definition adopted in 1992 contained the above-quoted definition of “definite purpose,” the delay in issuing regulations which embody this definition may have contributed to industry's delay in recognizing that these motors are covered.

The Department understands that redesign and testing these motors in order to meet the efficiency standards in the statute may require a substantial amount of time. Given the recent recognition that they are covered, it is not realistic to expect these motors will be able to comply by October 25, 1997. A substantial period beyond that will be required. Moreover, the Department believes different manufacturers will need to take different approaches to achieving compliance with respect to these motors, and that, for a particular type of motor, some manufacturers will be able to comply sooner than others. Thus, the Department intends to refrain from taking enforcement action for two years, until October 25, 1999, with respect to motors with horsepower ratings that fall between the horsepower ratings in Section 342(b)(1) of EPCA, thermally protected motors, and motors with roller bearings. Manufacturers are encouraged, however, to manufacture these motors in compliance with EPCA at the earliest possible date.

The following sets forth in greater detail, for each of these types of motors, the basis for the Department's policy to refrain from enforcement for two years. Also set forth is additional explanation of the Department's understanding as to why manufacturers previously believed intermediate horsepower motors were not covered by EPCA.

Intermediate Horsepower Ratings

Section 342(b)(1) of EPCA specifies efficiency standards for electric motors with 19 specific horsepower ratings, ranging from one through 200 horsepower. Each is a preferred or standardized horsepower rating as reflected in the table in NEMA Standards Publication MG1–1993, paragraph 10.32.4, Polyphase Medium Induction Motors. However, an “electric motor,” as defined by EPCA, can be built at other horsepower ratings, such as 6 horsepower, 65 horsepower, or 175 horsepower. Such motors, rated at horsepower levels between any two adjacent horsepower ratings identified in Section 342(b)(1) of EPCA will be referred to as “intermediate horsepower motors.” In the Department's view, efficiency standards apply to every motor that has a rating from one through 200 horsepower (or kilowatt equivalents), and that otherwise meets the criteria for an “electric motor” under EPCA, including an electric motor with an intermediate horsepower (or kW) rating.

To date, these motors have typically been designed in conjunction with and supplied to a specific customer to fulfill certain performance and design requirements of a particular application, as for example to run a certain type of equipment. See the discussion in Section IV below on “original equipment” and “original equipment manufacturers.” In large part for these reasons, manufacturers believed intermediate horsepower motors to be “definite purpose motors” that were not covered by EPCA. Despite their specific uses, however, these motors are electric motors under EPCA when they are capable of being used in most general purpose applications.

Features of a motor that are directly related to its horsepower rating include its physical size, and the ratings of its controller and protective devices. These aspects of a 175 horsepower motor, for example, which is an intermediate horsepower motor, must be appropriate to that horsepower, and would generally differ from the same aspects of 150 and 200 horsepower motors, the two standard horsepower ratings closest to 175. To re-design an existing intermediate horsepower electric motor so that it complies with EPCA could involve all of these elements of a motor's design. For example, the addition of material necessary to achieve EPCA's prescribed level of efficiency could cause the size of the motor to increase. The addition of magnetic material would invite higher inrush current that could cause an incorrectly sized motor controller to malfunction, or the circuit breaker with a standard rating to trip unnecessarily, or both. The Department believes motor manufacturers will require a substantial amount of time to redesign and retest each intermediate horsepower electric motor they manufacture.

To the extent such intermediate horsepower electric motors become unavailable because motor manufacturers have recognized only recently that they are covered by EPCA, equipment in which they are incorporated would temporarily become unavailable also. Moreover, re-design of such a motor to comply with EPCA could cause changes in the motor that require re-design of the equipment in which the motor is used. For example, if an intermediate horsepower electric motor becomes larger, it might no longer fit in the equipment for which it was designed. In such instances, the equipment would have to be re-designed. Because these motors were previously thought not to be covered, equipment manufacturers may not have had sufficient lead time to make the necessary changes to the equipment without interrupting its production.

With respect to intermediate horsepower motors, the Department intends to refrain from enforcing EPCA for a period of 24 months only as to such motor designs that were being manufactured prior to the date this Policy Statement was issued. The Department is concerned that small adjustments could be made to the horsepower rating of an existing electric motor, in an effort to delay compliance with EPCA, if it delayed enforcement as to all intermediate horsepower motors produced during the 24 month period. For example, a 50 horsepower motor that has a service factor of 1.15 could be renameplated as a 571/2 horsepower motor that has a 1.0 service factor. By making this delay in enforcement applicable only to pre-existing designs of intermediate horsepower motors, the Department believes it has made adequate provision for the manufacture of bona fide intermediate horsepower motor designs that cannot be changed to be in compliance with EPCA by October 25, 1997.

Thermally Protected Motors

The Department understands that in order to redesign a thermally protected motor to improve its efficiency so that it complies with EPCA, various changes in the windings must be made which will require the thermal protector to be re-selected. Such devices sense the inrush and running current of the motor, as well as the operating temperature. Any changes to a motor that affect these characteristics will prevent the protector from operating correctly. When a new protector is selected, the motor must be tested to verify proper operation of the device in the motor. The motor manufacturer would test the locked rotor and overload conditions, which could take several days, and the results may dictate that a second selection is needed with additional testing. When the manufacturer has finished testing, typically the manufacturer will have a third party conduct additional testing. This testing may include cycling the motor in a locked-rotor condition to verify that the protector functions properly. This testing may take days or even weeks to perform for a particular model of motor.

Since it was only recently recognized by industry that these motors are covered by EPCA, in the Department's view the total testing program makes it impossible for manufacturers to comply with the EPCA efficiency levels in thermally protected motors by October 25, 1997, especially since each different motor winding must be tested and motor winding/thermal protector combinations number in the thousands.

Motors With Roller Bearings

Motors with roller bearings fit within the definition of electric motor under the statute. However, because the IEEE Standard 112 Test Method B does not provide measures to test motors with roller bearings installed, manufacturers mistakenly believed such motors were not covered. Under IEEE Standard 112, a motor with roller bearings could only be tested for efficiency with the roller bearings removed and standard ball bearings installed as temporary substitutes. Then on the basis of the energy efficiency information gained from that test, the manufacturer may need to redesign the motor in order to comply with the statute. In this situation, the Department understands that testing, redesigning, and retesting lines of motors with roller bearings, to establish compliance, would be difficult and time consuming.

Categories III, IV and V—Motors not within EPCA's definition of “electric motor,” and not covered by EPCA.

Close-Coupled Pump Motors

NEMA Standards Publication MG1–1993, with revisions one through three, Part 18, “Definite-Purpose Machines,” defines “a face-mounting close-coupled pump motor” as “a medium alternating-current squirrel-cage induction open or totally enclosed motor, with or without feet, having a shaft suitable for mounting an impeller and sealing device.” Paragraphs MG1–18.601–18.614 specify its performance, face and shaft mounting dimensions, and frame assignments that replace the suffix letters T and TS with the suffix letters JM and JP.

The Department understands that such motors are designed in standard ratings with standard operating characteristics for use in certain close-coupled pumps and pumping applications, but cannot be used in non-pumping applications, such as, for example, conveyors. Consequently, the Department believes close-coupled pump motors are definite-purpose motors not covered by EPCA. However, a motor that meets EPCA's definition of “electric motor,” and which can be coupled to a pump, for example by means of a C-face or D-flange end shield, as depicted in NEMA Standards Publication MG1, Part 4, “Dimensions, Tolerances, and Mounting,” is covered.

Totally-Enclosed Non-Ventilated (TENV) and Totally-Enclosed Air-Over (TEAO) Motors

A motor designated in NEMA MG1–1993, paragraph MG1–1.26.1, as “totally-enclosed non-ventilated (IP54, IC410)”6 is “not equipped for cooling by means external to the enclosing parts.” This means that the motor, when properly applied, does not require the use of any additional means of cooling installed external to the motor enclosure. The TENV motor is cooled by natural conduction and natural convection of the motor heat into the surrounding environment. As stated in NEMA MG1–1993, Suggested Standard for Future Design, paragraph MG1–1.26.1a, a TENV motor “is only equipped for cooling by free convection.” The general requirement for the installation of the TENV motor is that it not be placed in a restricted space that would inhibit this natural dissipation of the motor heat. Most general purpose applications use motors which include a means for forcing air flow through or around the motor and usually through the enclosed space and, therefore, can be used in spaces that are more restrictive than those required for TENV motors. Placing a TENV motor in such common restricted areas is likely to cause the motor to overheat. The TENV motor may also be larger than the motors used in most general purpose applications, and would take up more of the available space, thus reducing the size of the open area surrounding the motor. Installation of a TENV motor might require, therefore, an additional means of ventilation to continually exchange the ambient around the motor.

6 IP refers to the IEC Standard 34–5: Classification of degrees of protection provided by enclosures for rotating machines. IC refers to the IEC Standard 34–6: Methods of cooling rotating machinery. The IP and IC codes are referenced in the NEMA designations for TENV and TEAO motors in MG1–1993 Part 1, “Classification According to Environmental Protection and Methods of Cooling,” as a Suggested Standard for Future Design, since the TENV and TEAO motors conform to IEC Standards. Details of protection (IP) and methods of cooling (IC) are defined in MG1 Part 5 and Part 6, respectively.

A motor designated in NEMA MG1–1993 as “totally-enclosed air-over (IP54, IC417)” is intended to be cooled by ventilation means external to (i.e., separate and independent from) the motor, such as a fan. The motor must be provided with the additional ventilation to prevent it from overheating.

Consequently, neither the TENV motor nor the TEAO motor would be suitable for most general purpose applications, and, DOE believes they are definite-purpose motors not covered by EPCA.

Integral Gearmotors

An “integral gearmotor” is an assembly of a motor and a specific gear drive or assembly of gears, such as a gear reducer, as a unified package. The motor portion of an integral gearmotor is not necessarily a complete motor, since the end bracket or mounting flange of the motor portion is also part of the gear assembly and cannot be operated when separated from the complete gear assembly. Typically, an integral gearmotor is not manufactured to standard T-frame dimensions specified in NEMA MG1. Moreover, neither the motor portion, not the entire integral gearmotor, are capable of being used in most general purpose applications without significant modifications. An integral gearmotor is also designed for a specific purpose and can have unique performance characteristics, physical dimensions, and casing, flange and shafting configurations. Consequently, integral gearmotors are outside the scope of the EPCA definition of “electric motor” and are not covered under EPCA.

However, an “electric motor,” as defined by EPCA, which is connected to a stand alone mechanical gear drive or an assembly of gears, such as a gear reducer connected by direct coupling, belts, bolts, a kit, or other means, is covered equipment under EPCA.

IV. Electric Motors That Are Components in Certain Equipment

The primary function of an electric motor is to convert electrical energy to mechanical energy which then directly drives machinery such as pumps, fans, or compressors. Thus, an electric motor is always connected to a driven machine or apparatus. Typically the motor is incorporated into a finished product such as an air conditioner, a refrigerator, a machine tool, food processing equipment, or other commercial or industrial machinery. These products are commonly known as “original equipment” or “end-use equipment,” and are manufactured by firms known as “original equipment manufacturers” (OEMs).

Many types of motors used in original equipment are covered under EPCA. As noted above, EPCA prescribes efficiency standards to be met by all covered electric motors manufactured after October 24, 1997, except that covered motors which require listing or certification by a nationally recognized safety testing laboratory need not meet the standards until after October 24, 1999. Thus, for motors that must comply after October 24, 1997, once inventories of motors manufactured before the deadline have been exhausted, only complying motors would be available for purchase and use by OEMs in manufacturing original equipment. Any non-complying motors previously included in such equipment would no longer be available.

The physical, and sometimes operational, characteristics of motors that meet EPCA efficiency standards normally differ from the characteristics of comparable existing motors that do not meet those standards. In part because of such differences, the Department is aware of two types of situations where strict application of the October 24, 1997, deadline could temporarily prevent the manufacture of, and remove from the marketplace, currently available original equipment.

One such situation is where an original equipment manufacturer uses an electric motor as a component in end-use equipment that requires listing or certification by a nationally recognized safety testing laboratory, even though the motor itself does not require listing or certification. In some of these instances, the file for listing or certification specifies the particular motor to be used. No substitution could be made for the motor without review and approval of the new motor and the entire system by the safety testing laboratory. Consequently, a specified motor that does not meet EPCA standards could not be replaced by a complying motor without such review and approval.

This re-listing or re-certification process is subject to substantial variation from one piece of original equipment to the next. For some equipment, it could be a simple paperwork transaction between the safety listing or certification organization and the OEM, taking approximately four to eight weeks to complete. But the process could raise more complex system issues involving redesign of the motor or piece of equipment, or both, and actual testing to assure that safety and performance criteria are met, and could take several months to complete. The completion time could also vary depending on the response time of the particular safety approval agency. Moreover, in the period immediately after October 24, the Department believes wholesale changes could occur in equipment lines when OEMs must begin using motors that comply with EPCA. These changes are likely to be concentrated in the period immediately after EPCA goes into effect on October 24, and if many OEMs seek to re-list or re-certify equipment at the same time, substantial delays in the review and approval process at the safety approval agencies could occur. For these reasons, the Department is concerned that certain end-user equipment that requires safety listing or certification could become unavailable in the marketplace, because an electric motor specifically identified in a listing or certification is covered by EPCA and will become unavailable, and the steps have not been completed to obtain safety approval of the equipment when manufactured with a complying motor.

Second, a situation could exist where an electric motor covered by EPCA is constructed in a T-frame series or T-frame size that is smaller (but still standard) than that assigned by NEMA Standards Publication MG 13–1984 (R1990), sections 1.2 and 1.3, in order to fit into a restricted mounting space that is within certain end-use equipment. (Motors in IEC metric frame sizes and kilowatt ratings could also be involved in this type of situation.) In such cases, the manufacturer of the end-use equipment might need to redesign the equipment containing the mounting space to accommodate a larger motor that complies with EPCA. These circumstances as well could result in certain currently available equipment becoming temporarily unavailable in the market, since the smaller size motor would become unavailable before the original equipment had been re-designed to accommodate the larger, complying motor.

The Department understands that many motor manufacturers and OEMs became aware only recently that the electric motors addressed in the preceding paragraphs were covered by EPCA. This is largely for the same reasons, discussed above, that EPCA coverage of Category II motors was only recently recognized. In addition, the Department understands that some motor manufacturers and original equipment manufacturers confused motors that themselves require safety listing or certification, which need not comply until October 25, 1999, with motors that, while not subject to such requirements, are included in original equipment that requires safety listing or certification. Consequently, motor manufacturers and original equipment manufacturers took insufficient action to assure that appropriate complying motors would be available for the original equipment involved, and that the equipment could accommodate such motors. OEMs involved in such situations may often be unable to switch to motors that meet EPCA standards in the period immediately following October 24. To mitigate any hardship to purchasers of the original equipment, the Department intends to refrain from enforcing EPCA in certain limited circumstances, under the conditions described below.

Where a particular electric motor is specified in an approved safety listing or certification for a piece of original equipment, and the motor does not meet the applicable efficiency standard in EPCA, the Department's policy will be as follows: For the period of time necessary for the OEM to obtain a revised safety listing or certification for that piece of equipment, with a motor specified that complies with EPCA, but in no event beyond October 24, 1999, the Department would refrain from taking enforcement action under EPCA with respect to manufacture of the motor for installation in such original equipment. This policy would apply only where the motor has been manufactured and specified in the approved safety listing or certification prior to October 25, 1997.

Where a particular electric motor is used in a piece of original equipment and manufactured in a smaller than assigned frame size or series, and the motor does not meet the applicable efficiency standard in EPCA, the Department's policy will be as follows: For the period of time necessary for the OEM to re-design the piece of equipment to accommodate a motor that complies with EPCA, but in no event beyond October 24, 1999, the Department would refrain from enforcing the standard with respect to manufacture of the motor for installation in such original equipment. This policy would apply only to a model of motor that has been manufactured and included in the original equipment prior to October 25, 1997.

To allow the Department to monitor application of the policy set forth in the prior two paragraphs, the Department needs to be informed as to the motors being manufactured under the policy. Therefore, each motor manufacturer and OEM should jointly notify the Department as to each motor they will be manufacturing and using, respectively, after October 24, 1997, in the belief that it is covered by the policy. The notification should set forth: (1) The name of the motor manufacturer, and a description of the motor by type, model number, and date of design or production; (2) the name of the original equipment manufacturer, and a description of the application where the motor is to be used; (3) the safety listing or safety certification organization and the existing listing or certification file or document number for which re-listing or re-certification will be requested, if applicable; (4) the reason and amount of time required for continued production of the motor, with a statement that a substitute electric motor that complies with EPCA could not be obtained by an earlier date; and (5) the name, address, and telephone number of the person to contact for further information. The joint request should be signed by a responsible official of each requesting company, and sent to: U.S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Building Research and Standards, EE–41, Forrestal Building, 1000 Independence Avenue, SW., Room 1J–018, Washington, DC 20585–0121. The Department does not intend to apply this policy to any motor for which it does not receive such a notification. Moreover, the Department may use the notification, and make further inquiries, to be sure motors listed in the notification meet the criteria for application of the policy.

This part of the Policy Statement will not apply to a motor in Category II, discussed above in Section III. Because up to 24 months is contemplated for compliance by Category II motors, the Department believes any issues that might warrant a delay of enforcement for such motors can be addressed during that time period.

V. Further Information

The Department intends to incorporate this Policy Statement into an appendix to its final rule to implement the EPCA provisions that apply to motors. Any comments or suggestions with respect to this Policy Statement, as well as requests for further information, should be addressed to the Director, Building Technologies, EE–2J, U.S. Department of Energy, Forrestal Building, 1000 Independence Avenue, SW., Washington, DC 20585–0121.

     Examples of Many Common Features or Motor Modifications To Illustrate How the EPCA Definitions and DOE     Guidelines Would Be Applied to Motor Categories: General Purpose; Definite Purpose; and Special Purpose----------------------------------------------------------------------------------------------------------------                                                         Category\1\           Motor modification           ---------------------------------------------         Explanation                                            I        II      III       IV       V----------------------------------------------------------------------------------------------------------------A. Electrical Modifications----------------------------------------------------------------------------------------------------------------1 Altitude.............................       X   .......  .......  .......  .......  General purpose up to a                                                                                       frame series change                                                                                       larger.2 Ambient..............................       X   .......  .......  .......  .......  General purpose up to a                                                                                       frame series change                                                                                       larger.3 Multispeed...........................  .......  .......  .......  .......       X   EPCA applies to single                                                                                       speed only.4 Special Leads........................       X   .......  .......  .......  .......  ..........................5 Special Insulation...................       X   .......  .......  .......  .......  ..........................6 Encapsulation........................  .......  .......  .......       X   .......  Due to special                                                                                       construction.7 High Service Factor..................       X   .......  .......  .......  .......  General purpose up to a                                                                                       frame series change                                                                                       larger.8 Space Heaters........................       X   .......  .......  .......  .......  ..........................9 Wye Delta Start......................       X   .......  .......  .......  .......  ..........................10 Part Winding Start..................       X   .......  .......  .......  .......  ..........................11 Temperature Rise....................       X   .......  .......  .......  .......  General purpose up to a                                                                                       frame series change                                                                                       larger.12 Thermally Protected.................  .......       X   .......  .......  .......  Requires retesting and                                                                                       third party agency                                                                                       approval.13 Thermostat/Thermistor...............       X   .......  .......  .......  .......  ..........................14 Special Voltages....................  .......  .......  .......  .......       X   EPCA applies to motors                                                                                       operating on 230/460                                                                                       voltages at 60 Hertz.15 Intermediate Horsepowers............  .......       X   .......  .......  .......  Round horsepower according                                                                                       to 10 CFR 431.42 for                                                                                       efficiency.16 Frequency...........................  .......  .......  .......  .......       X   EPCA applies to motors                                                                                       operating on 230/460                                                                                       voltages at 60 Hertz.17 Fungus/Trop Insulation..............       X   .......  .......  .......  .......  ..........................----------------------------------------------------------------------------------------------------------------B. Mechanical Modifications----------------------------------------------------------------------------------------------------------------18 Special Balance.....................       X   .......  .......  .......  .......  ..........................19 Bearing Temp. Detector..............       X   .......  .......  .......  .......  ..........................20 Special Base/Feet...................  .......  .......  .......  .......       X   Does not meet definition                                                                                       of T-frame.21 Special Conduit Box.................       X   .......  .......  .......  .......  ..........................22 Auxiliary Conduit Box...............       X   .......  .......  .......  .......  ..........................23 Special Paint/Coating...............       X   .......  .......  .......  .......  ..........................24 Drains..............................       X   .......  .......  .......  .......  ..........................25 Drip Cover..........................       X   .......  .......  .......  .......  ..........................26 Ground. Lug/Hole....................       X   .......  .......  .......  .......  ..........................27 Screens on ODP Enclosure............       X   .......  .......  .......  .......  ..........................28 Mounting F1,F2; W1-4; C1,2..........       X   .......  .......  .......  .......  Foot-mounting, rigid base,                                                                                       and resilient base.----------------------------------------------------------------------------------------------------------------C. Bearings----------------------------------------------------------------------------------------------------------------29 Bearing Caps........................       X   .......  .......  .......  .......  ..........................30 Roller Bearings.....................  .......       X   .......  .......  .......  Test with a standard                                                                                       bearing.31 Shielded Bearings...................       X   .......  .......  .......  .......  ..........................32 Sealed Bearings.....................       X   .......  .......  .......  .......  Test with a standard                                                                                       bearing.33 Thrust Bearings.....................  .......  .......  .......       X   .......  Special mechanical                                                                                       construction.34 Clamped Bearings....................       X   .......  .......  .......  .......  ..........................35 Sleeve Bearings.....................  .......  .......  .......       X   .......  Special mechanical                                                                                       construction.----------------------------------------------------------------------------------------------------------------D. Special Endshields----------------------------------------------------------------------------------------------------------------36 C Face..............................       X   .......  .......  .......  .......  As defined in NEMA MG-1.37 D Flange............................       X   .......  .......  .......  .......  As defined in NEMA MG-1.38 Customer Defined....................  .......  .......  .......       X   .......  Special design for a                                                                                       particular application.----------------------------------------------------------------------------------------------------------------E. Seals----------------------------------------------------------------------------------------------------------------39 Contact Seals.......................       X   .......  .......  .......  .......  Includes lip seals and                                                                                       taconite seals_test with                                                                                       seals removed.40 Non-Contact Seal....................       X   .......  .......  .......  .......  Includes labyrinth and                                                                                       slinger seals_test with                                                                                       seals installed.----------------------------------------------------------------------------------------------------------------F. Shafts----------------------------------------------------------------------------------------------------------------41 Standard Shafts/NEMA Mg-1...........       X   .......  .......  .......  .......  Includes single and                                                                                       double, cylindrical,                                                                                       tapered, and short                                                                                       shafts.42 Non Standard Material...............       X   .......  .......  .......  .......  ..........................----------------------------------------------------------------------------------------------------------------G. Fans----------------------------------------------------------------------------------------------------------------43 Special Material....................       X   .......  .......  .......  .......  ..........................44 Quiet Design........................       X   .......  .......  .......  .......  ..........................----------------------------------------------------------------------------------------------------------------H. Other Motors----------------------------------------------------------------------------------------------------------------45 Washdown............................       X   .......  .......  .......  .......  Test with seals removed.46 Close-coupled pump..................  .......  .......       X   .......  .......  JM and JP frame                                                                                       assignments.47 Integral Gear Motor.................  .......  .......  .......  .......       X   Typically special                                                                                       mechanical design, and                                                                                       not a T-frame; motor and                                                                                       gearbox inseparable and                                                                                       operate as one system.48 Vertical_Normal Thrust..............  .......  .......  .......  .......       X   EPCA covers foot-mounting.49 Saw Arbor...........................  .......  .......  .......       X   .......  Special electrical/                                                                                       mechanical design.50 TENV................................  .......  .......       X   .......  .......  Totally-enclosed non-                                                                                       ventilated not equipped                                                                                       for cooling (IP54,                                                                                       IC410).51 TEAO................................  .......  .......       X   .......  .......  Totally-enclosed air-over                                                                                       requires airflow from                                                                                       external source (IP54,                                                                                       IC417).52 Fire Pump...........................       X   .......  .......  .......  .......  When safety certification                                                                                       is not required. See also                                                                                       EPCA § 342(b)(1).53 Non-continuous......................  .......  .......  .......  .......       X   EPCA covers continuous                                                                                       ratings.54 Integral Brake Motor................  .......  .......  .......       X   .......  Integral brake design                                                                                       factory built within the                                                                                       motor.----------------------------------------------------------------------------------------------------------------\1\ Category I_General purpose electric motors as defined in EPCA.Category II_Definite purpose electric motors that can be used in most general purpose applications as defined in  EPCA.Category III_Definite purpose motors as defined in EPCA.Category IV_Special purpose motors as defined in EPCA.Category V_Outside the scope of ``electric motor'' as defined in EPCA.
Appendix B to Subpart B of Part 431—Uniform Test Method for Measuring Nominal Full Load Efficiency of Electric Motors
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1. Definitions.

Definitions contained in §§431.2 and 431.12 are applicable to this appendix.

2. Test Procedures.

Efficiency and losses shall be determined in accordance with NEMA MG1–1993 with Revisions 1 through 4, paragraph 12.58.1, “Determination of Motor Efficiency and Losses,” (Incorporated by reference, see §431.15) and either:

(1) CSA International (or Canadian Standards Association) Standard C390–93 Test Method (1), (Incorporated by reference, see §431.15), Input-Output Method With Indirect Measurement of the Stray-Load Loss and Direct Measurement of the Stator Winding (I2 R), Rotor Winding (I2 R), Core and Windage-Friction Losses, or

(2) IEEE Standard 112–1996 Test Method B, Input-Output With Loss Segregation, (Incorporated by reference, see §431.15) with IEEE correction notice of January 20, 1998, except as follows:

(i) Page 8, subclause 5.1.1., Specified temperature, the introductory clause does not apply. Instead the following applies:

The specified temperature used in making resistance corrections should be determined by one of the following (Test Method B only allows the use of preference (a) or (b).), which are listed in order of preference.

(ii) Page 17, subclause 6.4.1.3., No-load test, the text does not apply. Instead, the following applies:

See 5.3 including 5.3.3, the separation of core loss from friction and windage loss. Prior to making this test, the machine shall be operated at no-load until the input has stabilized.

(iii) Page 40, subclause 8.6.3, Termination of test, the third sentence does not apply. Instead, the following applies:

For continuous rated machines, the temperature test shall continue until there is 1 °C or less change in temperature rise over a 30-minute time period.

(iv) Page 47, at the top of 10.2 form B, immediately after the line that reads “Rated Load Heat Run Stator Winding Resistance Between Terminals,” the following additional line applies:

Temperature for Resistance Correction (ts) = − °C (See 6.4.3.2).

(v) Page 47, at the bottom of 10.2 Form B, after the first sentence to footnote tt, the following additional sentence applies:

The values for ts and tt shall be based on the same method of temperature measurement, selected from the four methods in subclause 8.3.

(vi) Page 47, at the bottom of 10.2 Form B, below the footnotes and above “Summary of Characteristics,” the following additional note applies:

Note: The temperature for resistance correction (ts) is equal to [(4) − (5) + 25 °C].

(vii) Page 48, item (22), the torque constants “k = 9.549 for torque, in N·m” and “k = 7.043 for torque, in 1bf·ft” do not apply. Instead, the following applies:

“k2 = 9.549 for torque, in N·m” and “k2 = 7.043 for torque, in 1bf·ft.”

(viii) Page 48, at the end of item (27), the following additional reference applies:

“See 6.4.3.2.”

(ix) Page 48, item (29). “See 4.3.2.2, Eq. 4,” does not apply. Instead the following applies:

Is equal to (10)·[k1 + (4) − (5) + 25 °C] / [k1 + (7)], see 6.4.3.3.”

3. Amendments to test procedures.

Any revision to IEEE Standard 112–1996 Test Method B with correction notice of January 20, 1998, to NEMA Standards Publication MG1–1993 with Revisions 1 through 4, or to CSA Standard C390–93 Test Method (1), subsequent to promulgation of this appendix B, shall not be effective for purposes of test procedures required under Part 431 and this appendix B, unless and until Part 431 and this appendix B are amended.

Appendix C to Subpart B of Part 431—Compliance Certification
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Certification of Compliance With Energy Efficiency Standards for Electric Motors

(Office of Management and Budget Control Number: 1910–5104. Expires 09/30/2007)

1. Name and Address of Company (the “company”):

____________________
____________________
____________________
____________________

2. Name(s) to be Marked on Electric Motors to Which this Compliance Certification Applies:

____________________
____________________
____________________
____________________

3. If manufacturer or private labeler wishes to receive a unique Compliance Certification number for use with any particular brand name, trademark, or other label name, fill out the following two items:

A. List each brand name, trademark, or other label name for which the company requests a Compliance Certification number:

____________________
____________________
____________________

B. List other name(s), if any, under which the company sells electric motors (if not listed in item 2 above):

____________________
____________________
____________________

Submit by Certified Mail to: U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies (EE–2J), Forrestal Building, 1000 Independence Avenue, SW., Washington, DC 20585–0121.

This Compliance Certification reports on and certifies compliance with requirements contained in 10 CFR Part 431 (Energy Conservation Program for Certain Commercial and Industrial Equipment) and Part C of the Energy Policy and Conservation Act (Pub. L. 94–163), and amendments thereto. It is signed by a responsible official of the above named company. Attached and incorporated as part of this Compliance Certification is a Listing of Electric Motor Efficiencies. For each rating of electric motor* for which the Listing specifies the nominal full load efficiency of a basic model, the company distributes no less efficient basic model with that rating and all basic models with that rating comply with the applicable energy efficiency standard.

*For this purpose, the term “rating” means one of the 113 combinations of an electric motor's horsepower (or standard kilowatt equivalent), number of poles, and open or enclosed construction, with respect to which §431.25 of 10 CFR Part 431 prescribes nominal full load efficiency standards.

Person to Contact for Further Information:

Name:____________________
Address:____________________
____________________
____________________
____________________
Telephone Number:____________________
Facsimile Number:____________________

If any part of this Compliance Certification, including the Attachment, was prepared by a third party organization under the provisions of 10 CFR 431.36, the company official authorizing third party representations:

Name:____________________
Address:____________________
____________________
____________________
____________________
Telephone Number:____________________
Facsimile Number:____________________

Third Party Organization Officially Acting as Representative:

Third Party Organization:____________________
Responsible Person at that Organization:____________________
Address:____________________
____________________
____________________
____________________
Telephone Number:____________________
Facsimile Number:____________________

All required determinations on which this Compliance Certification is based were made in conformance with the applicable requirements in 10 CFR Part 431, subpart B. All information reported in this Compliance Certification is true, accurate, and complete. The company is aware of the penalties associated with violations of the Act and the regulations thereunder, and is also aware of the provisions contained in 18 U.S.C. 1001, which prohibits knowingly making false statements to the Federal Government.

Signature:____________________
Date:____________________
Name:____________________
Title:____________________
Firm or Organization:____________________

Attachment to Certification of Compliance With Energy Efficiency Standards for Electric Motors: Listing of Electric Motor Efficiencies

Date:____________________
Name of Company:____________________
____________________
 ----------------------------------------------------------------------------------------------------------------                           Rating of electric motor                             Least efficient-------------------------------------------------------------------------------      basic         Nominal full                                                             Open or enclosed     model_(model   load efficiency  Motor horsepower / kilowatts         Number of poles             motor          numbers(s))----------------------------------------------------------------------------------------------------------------1 or .75........................  6.......................  Open..............          ______           ______1 or .75........................  4.......................  Open..............          ______           ______1 or .75........................  6.......................  Enclosed..........          ______           ______1 or .75........................  4.......................  Enclosed..........          ______           ______1 or .75........................  2.......................  Enclosed..........          ______           ______1.5 or 1.1......................  6.......................  Open..............          ______           ______1.5 or 1.1......................  4.......................  Open..............          ______           ______1.5 or 1.1......................  2.......................  Open..............          ______           ______1.5 or 1.1......................  6.......................  Enclosed..........          ______           ______1.5 or 1.1......................  4.......................  Enclosed..........          ______           ______1.5 or 1.1......................  2.......................  Enclosed..........          ______           ______                                  ........................  ..................          ______           ______Etc.............................  Etc.....................  Etc...............          ______          ______----------------------------------------------------------------------------------------------------------------Note: Place an asterisk beside each reported nominal full load efficiency that is determined by actual testing  rather than by application of an alternative efficiency determination method. Also list below additional basic  models that were subjected to actual testing.Basic Model means all units of a given type of electric motor (or class thereof) manufactured by a single  manufacturer, and which (i) have the same rating, (ii) have electrical design characteristics that are  essentially identical, and (iii) do not have any differing physical or functional characteristics that affect  energy consumption or efficiency.Rating means one of the 113 combinations of an electric motor's horsepower (or standard kilowatt equivalent),  number of poles, and open or enclosed construction, with respect to which § 431.25 of 10 CFR Part 431  prescribes nominal full load efficiency standards.
          Models Actually Tested and Not Previously Identified------------------------------------------------------------------------          Rating of electric motor--------------------------------------------  Basic model(s)    Nominal   Motor power                                    (model       full load output (e.g. 1    Number       Open or         number(s))    efficiency  hp or .75 kW)   of poles   enclosed motor------------------------------------------------------------------------         ______       ___           ______           ______        ___         ______       ___           ______           ______        ___         ______       ___           ______           ______        ___         ______       ___           ______           ______        ___         ______       ___           ______           ______        ___           Etc.      Etc.             Etc.             Etc.       Etc.------------------------------------------------------------------------
Subpart C—Commercial Refrigerators, Freezers and Refrigerator-Freezers
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Source:  70 FR 60414, Oct. 18, 2005, unless otherwise noted.

§ 431.61   Purpose and scope.
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This subpart contains energy conservation requirements for commercial refrigerators, freezers and refrigerator-freezers, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311–6317.

§ 431.62   Definitions concerning commercial refrigerators, freezers and refrigerator-freezers.
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Commercial refrigerator, freezer, and refrigerator-freezer means refrigeration equipment that—

(1) Is not a consumer product (as defined in §430.2 of part 430);

(2) Is not designed and marketed exclusively for medical, scientific, or research purposes;

(3) Operates at a chilled, frozen, combination chilled and frozen, or variable temperature;

(4) Displays or stores merchandise and other perishable materials horizontally, semi-vertically, or vertically;

(5) Has transparent or solid doors, sliding or hinged doors, a combination of hinged, sliding, transparent, or solid doors, or no doors;

(6) Is designed for pull-down temperature applications or holding temperature applications; and

(7) Is connected to a self-contained condensing unit or to a remote condensing unit.

Holding temperature application means a use of commercial refrigeration equipment other than a pull-down temperature application, except a blast chiller or freezer.

Integrated average temperature means the average temperature of all test package measurements taken during the test.

Pull-down temperature application means a commercial refrigerator with doors that, when fully loaded with 12 ounce beverage cans at 90 degrees F, can cool those beverages to an average stable temperature of 38 degrees F in 12 hours or less.

Remote condensing unit means a factory-made assembly of refrigerating components designed to compress and liquefy a specific refrigerant that is remotely located from the refrigerated equipment and consists of 1 or more refrigerant compressors, refrigerant condensers, condenser fans and motors, and factory supplied accessories.

Self-contained condensing unit means a factory-made assembly of refrigerating components designed to compress and liquefy a specific refrigerant that is an integral part of the refrigerated equipment and consists of 1 or more refrigerant compressors, refrigerant condensers, condenser fans and motors, and factory supplied accessories.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.66   Energy conservation standards and their effective dates.
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(a) In this section—

(1) The term “AV” means the adjusted volume (ft3 ) (defined as 1.63 × frozen temperature compartment volume (ft3 ) + chilled temperature compartment volume (ft3 )) with compartment volumes measured in accordance with the Association of Home Appliance Manufacturers Standard HRF1–1979.

(2) The term “V” means the chilled or frozen compartment volume (ft3 ) (as defined in the Association of Home Appliance Manufacturers Standard HRF1–1979).

(b) Each commercial refrigerator, freezer, and refrigerator-freezer with a self-contained condensing unit designed for holding temperature applications manufactured on or after January 1, 2010, shall have a daily energy consumption (in kilowatt hours per day) that does not exceed the following:

 ------------------------------------------------------------------------                                                Maximum daily energy                 Category                    consumption (kilowatt hours                                                      per day)------------------------------------------------------------------------Refrigerators with solid doors............  0.10V + 2.04.Refrigerators with transparent doors......  0.12V + 3.34.Freezers with solid doors.................  0.40V + 1.38.Freezers with transparent doors...........  0.75V + 4.10.Refrigerator/freezers with solid doors....  the greater of 0.27AV-0.71                                             or 0.70.------------------------------------------------------------------------

(c) Each commercial refrigerator with a self-contained condensing unit designed for pull-down temperature applications and transparent doors manufactured on or after January 1, 2010, shall have a daily energy consumption (in kilowatt hours per day) of not more than 0.126V + 3.51.

Subpart D—Commercial Warm Air Furnaces
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Source:  69 FR 61939, Oct. 21, 2004, unless otherwise noted.

§ 431.71   Purpose and scope.
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This subpart contains energy conservation requirements for commercial warm air furnaces, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311–6317.

[69 FR 61939, Oct. 21, 2004, as amended at 70 FR 60415, Oct. 18, 2005]

§ 431.72   Definitions concerning commercial warm air furnaces.
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The following definitions apply for purposes of this subpart D, and of subparts J through M of this part. Any words or terms not defined in this Section or elsewhere in this Part shall be defined as provided in Section 340 of the Act.

Commercial warm air furnace means a warm air furnace that is industrial equipment, and that has a capacity (rated maximum input) of 225,000 Btu per hour or more.

Thermal efficiency for a commercial warm air furnace equals 100 percent minus percent flue loss determined using test procedures prescribed under §431.76.

Warm air furnace means a self-contained oil-fired or gas-fired furnace designed to supply heated air through ducts to spaces that require it and includes combination warm air furnace/electric air conditioning units but does not include unit heaters and duct furnaces.

Test Procedures
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§ 431.75   Materials incorporated by reference.
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(a) We incorporate by reference the following test procedures into subpart D of Part 431. The Director of the Federal Register has approved the material listed in paragraph (b) of this section for incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR 51. Any subsequent amendment to this material by the standard-setting organization will not affect the DOE test procedures unless and until DOE amends its test procedures. We incorporate the material as it exists on the date of the approval and a notice of any change in the material will be published in the Federal Register.

(b) List of test procedures incorporated by reference. (1) American National Standards Institute (ANSI) Standard Z21.47–1998, “Gas-Fired Central Furnaces,” IBR approved for §431.76.

(2) Underwriters Laboratories (UL) Standard 727–1994, “Standard for Safety Oil-Fired Central Furnaces,” IBR approved for §431.76.

(3) Sections 8.2.2, 11.1.4, 11.1.5, and 11.1.6.2 of the Hydronics Institute (HI) Division of GAMA Boiler Testing Standard BTS–2000, “Method to Determine Efficiency of Commercial Space Heating Boilers,” published January 2001 (HI BTS–2000), IBR approved for §431.76.

(4) Sections 7.2.2.4, 7.8, 9.2, and 11.3.7 of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE) Standard 103–1993, “ Method of Testing for Annual Fuel Utilization Efficiency of Residential Central Furnaces and Boilers,” IBR approved for §431.76.

(c) Availability of references—(1) Inspection of test procedures. The test procedures incorporated by reference are available for inspection at:

(i) National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.php.

(ii) U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Hearings and Dockets, “Test Procedures and Efficiency Standards for Commercial Warm Air Furnaces; Efficiency Certification, Compliance, and Enforcement Requirements for Commercial Heating, Air Conditioning and Water Heating Equipment;” Docket No. EE–RM/TP–99–450, Forrestal Building, 1000 Independence Avenue, SW., Washington, DC 20585.

(2) Obtaining copies of Standards. Anyone can purchase a copy of standards incorporated by reference from the following sources:

(i) The ASHRAE Standard from the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., 1971 Tullie Circle, NE., Atlanta, GA 30329, or http://www.ashrae.org/book/bookshop.htm.

(ii) The ANSI Standard from Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112, or http://global.ihs.com/, or http://webstore.ansi.org/ansidocstore/.

(iii) The UL Standard from Global Engineering Documents, 15 Inverness Way East, Englewood, CO 80112, or http://global.ihs.com/.

(iv) The HI Standard from the Hydronics Institute Division of GAMA, P.O. Box 218, Berkeley Heights, NJ 07922, or http://www.gamanet.org/publist/hydroordr.htm.

§ 431.76   Uniform test method for the measurement of energy efficiency of commercial warm air furnaces.
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(a) This Section covers the test procedures you must follow if, pursuant to EPCA, you are measuring the steady state thermal efficiency of a gas-fired or oil-fired commercial warm air furnace with a rated maximum input of 225,000 Btu per hour or more. Where this Section prescribes use of ANSI standard Z21.47–1998 or UL standard 727–1994, (Incorporated by reference, see §431.75), perform only the procedures pertinent to the measurement of the steady-state efficiency.

(b) Test setup—(1) Test setup for gas-fired commercial warm air furnaces. The test setup, including flue requirement, instrumentation, test conditions, and measurements for determining thermal efficiency is as specified in sections 1.1 (Scope), 2.1 (General), 2.2 (Basic Test Arrangements), 2.3 (Test Ducts and Plenums), 2.4 (Test Gases), 2.5 (Test Pressures and Burner Adjustments), 2.6 (Static Pressure and Air Flow Adjustments), 2.38 (Thermal Efficiency), and 4.2.1 (Basic Test Arrangements for Direct Vent Control Furnaces) of the ANSI Standard Z21.47–1998. The thermal efficiency test must be conducted only at the normal inlet test pressure, as specified in Section 2.5.1 of ANSI Standard Z21.47–1998, (Incorporated by reference, see §431.75), and at the maximum hourly Btu input rating specified by the manufacturer for the product being tested.

(2) Test setup for oil-fired commercial warm air furnaces. The test setup, including flue requirement, instrumentation, test condition, and measurement for measuring thermal efficiency is as specified in sections 1 (Scope), 2 (Units of Measurement), 3 (Glossary), 37 (General), 38 and 39 (Test Installation), 40 (Instrumentation, except 40.4 and 40.6.2 through 40.6.7, which are not required for the thermal efficiency test), 41 (Initial Test Conditions), 42 (Combustion Test—Burner and Furnace), 43.2 (Operation Tests), 44 (Limit Control Cutout Test), 45 (Continuity of Operation Test), and 46 (Air Flow, Downflow or Horizontal Furnace Test), of the UL Standard 727–1994. You must conduct a fuel oil analysis for heating value, hydrogen content, carbon content, pounds per gallon, and American Petroleum Institute (API) gravity as specified in Section 8.2.2 of the HI BTS–2000 (Incorporated by reference, see §431.75). The steady-state combustion conditions, specified in Section 42.1 of UL Standard 727–1994, (Incorporated by reference, see §431.75), are attained when variations of not more than 5 °F in the measured flue gas temperature occur for three consecutive readings taken 15 minutes apart.

(c) Additional test measurements—(1) Measurement of flue CO2 (carbon dioxide) for oil-fired commercial warm air furnaces. In addition to the flue temperature measurement specified in Section 40.6.8 of UL Standard 727–1994, (Incorporated by reference, see §431.75) you must locate one or two sampling tubes within six inches downstream from the flue temperature probe (as indicated on Figure 40.3 of UL Standard 727–1994) (Incorporated by reference, see §431.75). If you use an open end tube, it must project into the flue one-third of the chimney connector diameter. If you use other methods of sampling CO2, you must place the sampling tube so as to obtain an average sample. There must be no air leak between the temperature probe and the sampling tube location. You must collect the flue gas sample at the same time the flue gas temperature is recorded. The CO2 concentration of the flue gas must be as specified by the manufacturer for the product being tested, with a tolerance of ±0.1 percent. You must determine the flue CO2 using an instrument with a reading error no greater than ±0.1 percent.

(2) Procedure for the measurement of condensate for a gas-fired condensing commercial warm air furnace. The test procedure for the measurement of the condensate from the flue gas under steady state operation must be conducted as specified in sections 7.2.2.4, 7.8 and 9.2 of the ASHRAE Standard 103–1993 (Incorporated by reference, see §431.75) under the maximum rated input conditions. You must conduct this condensate measurement for an additional 30 minutes of steady state operation after completion of the steady state thermal efficiency test specified in paragraph (b) of this section.

(d) Calculations of thermal efficiency—(1) Gas-fired commercial warm air furnaces. You must use the calculation procedure specified in Section 2.38, Thermal Efficiency, of ANSI Standard Z21.47–1998 (Incorporated by reference, see §431.75).

(2) Oil-fired commercial warm air furnaces. You must calculate the percent flue loss (in percent of heat input rate) by following the procedure specified in sections 11.1.4, 11.1.5, and 11.1.6.2 of the HI BTS–2000 (Incorporated by reference, see §431.75). The thermal efficiency must be calculated as:

Thermal Efficiency (percent) = 100 percent − flue loss (in percent).

(e) Procedure for the calculation of the additional heat gain and heat loss, and adjustment to the thermal efficiency, for a condensing commercial warm air furnace. (1) You must calculate the latent heat gain from the condensation of the water vapor in the flue gas, and calculate heat loss due to the flue condensate down the drain, as specified in sections 11.3.7.1 and 11.3.7.2 of ASHRAE Standard 103–1993, (Incorporated by reference, see §431.75), with the exception that in the equation for the heat loss due to hot condensate flowing down the drain in Section 11.3.7.2, the assumed indoor temperature of 70 °F and the temperature term TOA must be replaced by the measured room temperature as specified in Section 2.2.8 of ANSI Standard Z21.47–1998 (Incorporated by reference, see §431.75).

(2) Adjustment to the Thermal Efficiency for Condensing Furnace. You must adjust the thermal efficiency as calculated in paragraph (d)(1) of this section by adding the latent gain, expressed in percent, from the condensation of the water vapor in the flue gas, and subtracting the heat loss (due to the flue condensate down the drain), also expressed in percent, both as calculated in paragraph (e)(1) of this section, to obtain the thermal efficiency of a condensing furnace.

Energy Conservation Standards
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§ 431.77   Energy conservation standards and their effective dates.
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Each commercial warm air furnace manufactured on or after January 1, 1994, must meet the following energy efficiency standard levels:

(a) For a gas-fired commercial warm air furnace with capacity of 225,000 Btu per hour or more, the thermal efficiency at the maximum rated capacity (rated maximum input) must be not less than 80 percent.

(b) For an oil-fired commercial warm air furnace with capacity of 225,000 Btu per hour or more, the thermal efficiency at the maximum rated capacity (rated maximum input) must be not less than 81 percent.

Subpart E—Commercial Packaged Boilers
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Source:  69 FR 61960, Oct. 21, 2004, unless otherwise noted.

§ 431.81   Purpose and scope.
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This subpart contains energy conservation requirements for certain commercial packaged boilers, pursuant to Part C of Title III of the Energy Policy and Conservation Act. (42 U.S.C. 6311–6317)

[69 FR 61960, Oct. 21, 2004, as amended at 70 FR 60415, Oct. 18, 2005]

§ 431.82   Definitions concerning commercial packaged boilers.
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The following definitions apply for purposes of this subpart E, and of subparts A and J through M of this part. Any words or terms not defined in this section or elsewhere in this part shall be defined as provided in 42 U.S.C. 6311.

Combustion efficiency for a commercial packaged boiler means the efficiency descriptor for packaged boilers, determined using test procedures prescribed under §431.86 and equals to 100 percent minus percent flue loss (percent flue loss is based on input fuel energy).

Commercial packaged boiler means a type of packaged low pressure boiler that is industrial equipment with a capacity, (rated maximum input) of 300,000 Btu per hour (Btu/hr) or more which, to any significant extent, is distributed in commerce:

(1) For heating or space conditioning applications in buildings; or

(2) For service water heating in buildings but does not meet the definition of “hot water supply boiler” in this part.

Condensing boiler means a commercial packaged boiler that condenses part of the water vapor in the flue gases, and that includes a means of collecting and draining this condensate from its heat exchanger section.

Flue condensate means liquid formed by the condensation of moisture in the flue gases.

Manufacturer of a commercial packaged boiler means any person who manufactures, produces, assembles or imports such a boiler, including any person who:

(1) Manufactures, produces, assembles or imports a commercial packaged boiler in its entirety;

(2) Manufactures, produces, assembles or imports a commercial packaged boiler in part, and specifies or approves the boiler's components, including burners or other components produced by others, as for example by specifying such components in a catalogue by make and model number or parts number; or

(3) Is any vendor or installer who sells a commercial packaged boiler that consists of a combination of components that is not specified or approved by a person described in paragraph (1) or (2) of this definition.

Packaged boiler means a boiler that is shipped complete with heating equipment, mechanical draft equipment and automatic controls; usually shipped in one or more sections and does not include a boiler that is custom designed and field constructed. If the boiler is shipped in more than one section, the sections may be produced by more than one manufacturer, and may be originated or shipped at different times and from more than one location.

Packaged high pressure boiler means a packaged boiler that is:

(1) A steam boiler designed to operate at a steam pressure higher than 15 psi gauge (psig); or

(2) A hot water boiler designed to operate at a water pressure above 160 psig or at a water temperature exceeding 250 °F, or both; or

(3) A boiler that is designed to be capable of supplying either steam or hot water, and designed to operate under the conditions in paragraphs (1) and (2) of this definition.

Packaged low pressure boiler means a packaged boiler that is:

(1) A steam boiler designed to operate at or below a steam pressure of 15 psig; or

(2) A hot water boiler designed to operate at or below a water pressure of 160 psig and a temperature of 250 °F; or

(3) A boiler that is designed to be capable of supplying either steam or hot water, and designed to operate under the conditions in paragraphs (1) and (2) of this definition.

Test Procedures
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§ 431.85   Materials incorporated by reference.
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(a) The Department incorporates by reference the following test procedures into subpart E of part 431. The Director of the Federal Register has approved the material listed in paragraph (b) of this section for incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Any subsequent amendment to this material by the standard-setting organization will not affect the DOE test procedures unless and until DOE amends its test procedures. The Department incorporates the material as it exists on the date of the approval and a notice of any change in the material will be published in the Federal Register.

(b) List of test procedures incorporated by reference. (1) The Hydronics Institute (HI) of GAMA Boiler Testing Standard BTS–2000, “Method to Determine Efficiency of Commercial Space Heating Boilers,” published January 2001 (HI BTS–2000), IBR approved for §431.86.

(2) The American Society of Mechanical Engineers Power Test Codes for Steam Generating Units, ASME PTC 4.1–1964, Reaffirmed 1991 (Including 1968 and 1969 Addenda) (“ASME PTC 4.1”), IBR approved for §431.86.

(c) Availability of references—(1) Inspection of test procedures. The test procedures incorporated by reference are available for inspection at:

(i) National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.php.

(ii) U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Hearings and Dockets, “Test Procedures and Efficiency Standards for Commercial Packaged Boilers,” Docket No. EE–RM/TP–99–470, 1000 Independence Avenue, SW., Washington, DC 20585.

(2) Obtaining copies of Standards. Anyone can purchase a copy of HI BTS–2000 from the Hydronics Institute Division of GAMA, P.O. Box 218, Berkeley Heights, NJ 07922, or http://www.gamanet.org/publist/hydroordr.htm; and a copy of ASME PTC 4.1–1964/RA–1991 from Global Engineering Documents, 15 Inverness Way East, Engelwood, CO 80112, 800–854–7179.

§ 431.86   Uniform test method for the measurement of energy efficiency of commercial packaged boilers.
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(a) Scope. This section provides test procedures that must be followed for measuring, pursuant to EPCA, the steady state combustion efficiency of a gas-fired or oil-fired commercial packaged boiler. These test procedures apply to packaged low pressure boilers that have rated input capacities of 300,000 Btu/hr or more and are “commercial packaged boilers, but do not apply under EPCA to “packaged high pressure boilers.”

(b) Definitions. For purposes of this section, the Department incorporates by reference the definitions specified in Section 3.0 of the HI BTS–2000 (Incorporated by reference, see §431.85), with the exception of the definition for the terms “packaged boiler”, “condensing boilers”, and “packaged low pressure steam” and “hot water boiler”.

(c) Test Method for Commercial Packaged Boilers—General. After October 23, 2006, follow the provisions in this paragraph (c) for all testing of packaged low pressure boilers that are commercial packaged boilers. Prior to that date, follow either the provisions of this paragraph (c) or of paragraph (d) of this section to test steel boilers, but follow the provisions of this paragraph for all other commercial packaged boilers.

(1) Test Setup—(i) Classifications: If employing boiler classification, you must classify boilers as given in Section 4.0 of the HI BTS–2000 (Incorporated by reference, see §431.85).

(ii) Requirements: Conduct the combustion efficiency test as given in Section 5.2 (Combustion Efficiency Test) of the HI BTS–2000 (Incorporated by reference, see §431.85).

(iii) Instruments and Apparatus:

(A) Follow the requirements for instruments and apparatus in sections 6 (Instruments) and 7 (Apparatus), of the HI BTS–2000 (Incorporated by reference, see §431.85), with the exception of section 7.2.5 (flue connection for outdoor boilers) which is replaced with paragraph (c)(1)(iii)(B) of this section:

(B) Flue Connection for Outdoor Boilers: For oil-fired and power gas outdoor boilers, the integral venting means may have to be revised to permit connecting the test flue apparatus described in section 7.2.1 of BTS–2000. A gas-fired boiler for outdoor installation with a venting system provided as part of the boiler must be tested with the venting system in place.

(iv) Test Conditions: Use test conditions from Section 8.0 (excluding 8.5.2, 8.5.3, and 8.6.2) of HI BTS–2000 (Incorporated by reference, see §431.85) for the combustion efficiency testing, and use paragraph (c)(1)(iv)(A) of this section when testing a condensing boiler:

(A) Water Temperatures for Condensing Boilers—For condensing boilers the outlet temperature shall be 180 °F±2 °F and the inlet temperature shall be 80 °F±5 °F at all times during the test. (See also paragraphs (c)(2)(i) and (ii) of this section for condensing boilers.).

(B) [Reserved]

(2) Test Measurements. (i) Measure for combustion efficiency according to sections 9.1 (excluding sections 9.1.1.2.3 and 9.1.2.2.3), 9.2 and 10.2 of the HI BTS–2000 (Incorporated by reference, see §431.85), except that for condensing boilers, replace the boiler water inlet temperature in section 9.1.2.1.4 of the HI BTS–2000 standard with the inlet temperature specified in paragraph (c)(1)(iv)(A) of this section.

(ii) Procedure for the Measurement of Condensate for a Condensing Boiler. Collect flue condensate as specified in Section 9.2.2 of HI BTS–2000 (Incorporated by reference, see §431.85). Measure the condensate from the flue gas under steady state operation for the 30 minute collection period during the 30 minute steady state combustion efficiency test. Flue condensate mass shall be measured immediately at the end of the 30 minute collection period to prevent evaporation loss from the sample. The humidity of the room shall at no time exceed 80 percent. Determine the mass of flue condensate for the steady state period by subtracting the tare container weight from the total container and flue condensate weight measured at the end of the test period.

(iii) A Boiler That is Capable of Supplying Either Steam or Hot Water—(A) Testing. For purposes of EPCA, measure the combustion efficiency of a commercial packaged boiler capable of supplying either steam or hot water either by testing the boiler in the steam mode or by testing it in both the steam and hot water modes.

(B) Rating. If testing the boiler only in the steam mode, use the efficiency determined from such testing to rate the boiler for both the steam and water modes. If testing the boiler in both modes, rate the boiler's efficiency for each mode based on the testing in that mode.

(3) Calculation of Combustion Efficiency. Use the calculation procedure for the combustion efficiency test specified in Section 11.2 (including the specified subsections of 11.1) of the HI BTS–2000 (Incorporated by reference, see §431.85).

(d) Steel Commercial Packaged Boilers—Alternative Test Method. Until October 23, 2006, follow either the provisions of this paragraph (d), or of paragraph (c) of this section, to test steel commercial packaged boilers.

(1) Test setup. Instead of using HI BTS–2000 as specified in paragraph (c)(1) of this section, conduct the combustion efficiency test for steel packaged low pressure boilers that are commercial packaged boilers using the Abbreviated Efficiency Test (Simplified Efficiency Test or The Short Form) as specified in ASME PTC 4.1 (Incorporated by reference, see §431.85). If selecting the ASME PTC 4.1 procedure for conducting the required combustion efficiency test for steel boilers, conduct the test under conditions as specified in paragraphs (d)(1)(i) and (ii) of this section.

(i) Use the test procedure for the efficiency test from ASME PTC 4.1 (Incorporated by reference, see §431.85). Conduct the combustion efficiency test with the Abbreviated Efficiency Test (Simplified Efficiency Test or The Short Form) for gas and oil fuels described in Section 1.07 of ASME PTC 4.1 (Incorporated by reference, see §431.85).

(ii) Test Conditions for the Combustion Efficiency.

(A) Steam pressure for steam boilers—Test must be made at atmospheric pressure or at a pressure not exceeding 2 psig.

(B) Water temperature for hot water boilers—The inlet temperature must be 35 °F to 80 °F, except that when a boiler is tested in the field after installation the inlet temperature may be as recommended by the manufacturer, but must not exceed 140 °F. The outlet temperature shall be 180 °F ±2 °F.

(C) After steady state operation is achieved, the minimum duration of a test run shall be 30 minutes.

(2) Test Measurements. Use the test procedure from Section 5, Efficiency by Heat Loss Method, of ASME PTC 4.1 (Incorporated by reference, see §431.85). Use the test conditions as specified in paragraph (d)(1) of this section. For a boiler that is capable of supplying either steam or hot water, follow paragraph (c)(2)(iii) of this section.

(3) Calculation of Combustion Efficiency. Use the heat loss method for gas or oil fuel as specified in Section 7.3 and the Test Forms for the Abbreviated Efficiency Test, PTC 4.1–a (Summary Sheet) and PTC 4.1–b (Calculation Sheet), of ASME PTC 4.1 to determine the combustion efficiency, except that the following specific heat loss terms (as listed in Section 7.3 of ASME PTC 4.1) to 0: sections 7.3.2.03 (moisture in fuel), 7.3.2.01 (combustible in dry refuse), 7.3.2.10 (radiation to surroundings), 7.3.2.05 through 7.3.2.09 and 7.3.2.11 through 7.3.2.14 (unmeasured losses) must be set. (Incorporated by reference, see §431.85)

Energy Efficiency Standards
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§ 431.87   Energy conservation standards and their effective dates.
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Each manufacturer of a commercial packaged boiler manufactured on or after January 1, 1994, must meet the following energy efficiency standard levels:

(a) For a gas-fired packaged boiler with a capacity (rated maximum input) of 300,000 Btu/hr or more, the combustion efficiency at the maximum rated capacity must be not less than 80 percent.

(b) For an oil-fired packaged boiler with a capacity (rated maximum input) of 300,000 Btu/hr or more, the combustion efficiency at the maximum rated capacity must be not less than 83 percent.

Subpart F—Commercial Air Conditioners and Heat Pumps
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Source:  69 FR 61969, Oct. 21, 2004, unless otherwise noted.

§ 431.91   Purpose and scope.
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This subpart specifies test procedures and energy conservation standards for certain commercial air conditioners and heat pumps, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311–6317.

[69 FR 61969, Oct. 21, 2004, as amended at 70 FR 60415, Oct. 18, 2005]

§ 431.92   Definitions concerning commercial air conditioners and heat pumps.
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The following definitions apply for purposes of this subpart F, and of subparts J through M of this part. Any words or terms not defined in this section or elsewhere in this part shall be defined as provided in 42 U.S.C. 6311.

Coefficient of Performance, or COP means the ratio of the produced cooling effect of an air conditioner or heat pump (or its produced heating effect, depending on the mode of operation) to its net work input, when both the cooling (or heating) effect and the net work input are expressed in identical units of measurement.

Commercial package air-conditioning and heating equipment means air-cooled, water-cooled, evaporatively-cooled, or water source (not including ground water source) electrically operated, unitary central air conditioners and central air-conditioning heat pumps for commercial application.

Energy Efficiency Ratio, or EER means the ratio of the produced cooling effect of an air conditioner or heat pump to its net work input, expressed in Btu/watt-hour.

Heating seasonal performance factor, or HSPF means the total heating output of a central air-conditioning heat pump during its normal annual usage period for heating, expressed in Btu's and divided by the total electric power input, expressed in watt-hours, during the same period.

Large commercial package air-conditioning and heating equipment means commercial package air-conditioning and heating equipment that is rated—

(1) At or above 135,000 Btu per hour; and

(2) Below 240,000 Btu per hour (cooling capacity).

Packaged terminal air conditioner means a wall sleeve and a separate un-encased combination of heating and cooling assemblies specified by the builder and intended for mounting through the wall, and that is industrial equipment. It includes a prime source of refrigeration, separable outdoor louvers, forced ventilation, and heating availability by builder's choice of hot water, steam, or electricity.

Packaged terminal heat pump means a packaged terminal air conditioner that utilizes reverse cycle refrigeration as its prime heat source, that has a supplementary heat source available, with the choice of hot water, steam, or electric resistant heat, and that is industrial equipment.

Seasonal energy efficiency ratio or SEER means the total cooling output of a central air conditioner or central air-conditioning heat pump, expressed in Btu's, during its normal annual usage period for cooling and divided by the total electric power input, expressed in watt-hours, during the same period.

Single package unit means any central air conditioner or central air-conditioning heat pump in which all the major assemblies are enclosed in one cabinet.

Small commercial package air-conditioning and heating equipment means commercial package air-conditioning and heating equipment that is rated below 135,000 Btu per hour (cooling capacity).

Split system means any central air conditioner or central air conditioning heat pump in which one or more of the major assemblies are separate from the others.

Very large commercial package air-conditioning and heating equipment means commercial package air-conditioning and heating equipment that is rated—

(1) At or above 240,000 Btu per hour; and

(2) Below 760,000 Btu per hour (cooling capacity).

[69 FR 61969, Oct. 21, 2004, as amended at 70 FR 60415, Oct. 18, 2005]

Test Procedures
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§ 431.95   Materials incorporated by reference.
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(a) The Department incorporates by reference the following test procedures into subpart F of part 431. The Director of the Federal Register has approved the material listed in paragraph (b) of this section for incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Any subsequent amendment to this material by the standard-setting organization will not affect the Department test procedures unless and until the Department amends its test procedures. The Department incorporates the material as it exists on the date of the approval and a notice of any change in the material will be published in the Federal Register.

(b) List of test procedures incorporated by reference. (1) Air-Conditioning and Refrigeration Institute (ARI) Standard 210/240–2003 published in 2003, “Unitary Air-Conditioning and Air-Source Heat Pump Equipment,” IBR approved for §431.96.

(2) ARI Standard 340/360–2000 published in 2001, “Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment,” IBR approved for §431.96.

(3) International Organization for Standardization (ISO) International Standard ISO 13256–1 published in 1998, “Water-source heat pumps—Testing and rating for performance—Part 1: Water-to-air and brine-to-air heat pumps,” IBR approved for §431.96.

(4) ARI Standard 310/380–2004 (CSA–C744–04) published in 2004, “Standard for Packaged Terminal Air-Conditioners and Heat Pumps,” IBR approved for §431.96.

(c) Availability of references—(1) Inspection of test procedures. You may inspect the test procedures incorporated by reference at:

(i) National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.php.

(ii) U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Hearings and Dockets, “Test Procedures and Efficiency Standards for Commercial Air Conditioners and Heat Pumps,” Docket No. EE–RM/TP–99–460, 1000 Independence Avenue, SW., Washington, DC 20585.

(2) Obtaining copies of test procedures. You may obtain a copy of the ARI standards from the Air-Conditioning and Refrigeration Institute, 4301 North Fairfax Drive, Suite 425, Arlington, VA 22203, http://www.ari.org/. You can purchase a copy of the ISO Standard 13256–1 from the International Organization for Standardization, Case Postale 56, CH–1211, Geneva 20, Switzerland. http://www.iso.ch/ or from the American National Standards Institute, 25 West 43rd Street, New York, New York 10036.

§ 431.96   Uniform test method for the measurement of energy efficiency of small and large commercial package air conditioning and heating equipment, packaged terminal air conditioners, and packaged terminal heat pumps.
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(a) Scope. This section contains test procedures you must follow if, pursuant to EPCA, you are measuring the energy efficiency of any small or large commercial package air-conditioning and heating equipment, packaged terminal air conditioner or packaged terminal heat pump.

(b) Testing and Calculations. Determine the energy efficiency of each covered product by conducting the test procedure(s) listed in the rightmost column of Table 1 of this section or the two rightmost columns of Table 2 of this section, that apply to the energy efficiency descriptor for that product, category, and cooling capacity.

   Table 1 to § 431.96_Test Procedures for Certain Small Commercial Package Air Conditioning and Heating Equipment (All Water-Source Equipment and Other Equipment Less Than 65,000 Btu/h), for Large Commercial Package  Air Conditioning and Heating Equipment and for Packaged Terminal Air Conditioners and Packaged Terminal Heat                                                      Pumps----------------------------------------------------------------------------------------------------------------                                                                                                  Use tests,             Product                   Category        Cooling capacity    Energy efficiency    conditions and                                                                              descriptor       procedures \1\ in----------------------------------------------------------------------------------------------------------------Small Commercial Packaged Air     Air Cooled, 3       <65,000 Btu/h..  SEER..............  ARI Standard 210/ Conditioning and Heating          Phase, AC and HP                                            240-2003 Equipment                                                                         ---------------------------------------                                                                          HSPF..............  ARI Standard 210/                                                                                               240-2003                                 -------------------------------------------------------------------------------                                  Water Cooled and    <65,000 Btu/h..  EER...............  ARI Standard 210/                                   Evaporatively                                               240-2003                                   Cooled AC                                 -------------------------------------------------------------------------------                                  Water-Source HP...  <135,000 Btu/h.  EER...............  ISO Standard 13256-                                                                                               1 (1998)                                                                         ---------------------------------------                                                                          COP...............  ISO Standard 13256-                                                                                               1 (1998)----------------------------------------------------------------------------------------------------------------Large Commercial Packaged Air     Air Cooled AC and   >=135,000 Btu/h     EER...............  ARI Standard 340/ Conditioning and Heating          HP.                 and <240,000                         360-2000 Equipment                                             Btu/h.                                                                         ---------------------------------------                                                                          COP...............  ARI Standard 340/                                                                                               360-2000                                 -------------------------------------------------------------------------------                                  Water Cooled AC...  >=135,000 Btu/h     EER...............  ARI Standard 340/                                                       and <240,000                         360-2000                                                       Btu/h.                                 -------------------------------------------------------------------------------                                  Evaporatively       >=135,000 Btu/h     EER...............  ARI Standard 340/                                   Cooled AC.          and <240,000                         360-2000                                                       Btu/h.----------------------------------------------------------------------------------------------------------------Packaged Terminal Air             AC and HP.........  All...............  EER...............  ARI Standard 310/ Conditioners and Heat Pumps                                                                   380-2004                                 -------------------------------------------------------------------------------                                  HP................  All...............  COP...............  ARI Standard 310/                                                                                               380-2004----------------------------------------------------------------------------------------------------------------\1\ Incorporated by reference, see § 431.95.
  Table 2 to § 431.96_Test Procedures for Small Commercial Package Air Conditioning and Heating Equipment                    >=65,000 Btu/h and <135,000 Btu/h (Other Than Water-Source Equipment)----------------------------------------------------------------------------------------------------------------                                            Energy                Category                  efficiency   Use tests, conditions and       With these additional                                          descriptor       procedures \1\ in             stipulations \2\----------------------------------------------------------------------------------------------------------------Air Cooled AC and HP...................          EER   ARI Standard 340/360-2000  1. Models with a desuperheater/                                                    COP                            water heating device:                                                                                   Establish Standard Ratings of                                                                                   units equipped with a                                                                                   refrigerant-to-water heat                                                                                   exchanger to heat domestic                                                                                   water (i.e., a                                                                                   desuperheater), with the                                                                                   desuperheater not in                                                                                   operation.                                         ............                             2. Models Manufactured Without                                                                                   Indoor Air- Circulating Fans:                                                                                   (a) Establish Standard                                                                                   Ratings of units which do not                                                                                   have indoor air circulating                                                                                   fans furnished as part of the                                                                                   model, i.e., split systems                                                                                   with indoor coil alone, by                                                                                   subtracting from the total                                                                                   cooling capacity 1,250 Btu/h                                                                                   per 1,000 cfm [775 W/m\3\/s],                                                                                   and by adding the same amount                                                                                   to the heating capacity.                                                                                   Increase total power input                                                                                   for both heating and cooling                                                                                   by 365 W per 1,000 cfm [226 W/                                                                                   m\3\/s] of indoor air                                                                                   circulated.                                         ............                             (b) Equipment which does not                                                                                   incorporate an indoor fan,                                                                                   but is rated in combination                                                                                   with a device employing a                                                                                   fan, shall be rated as                                                                                   described in 6.1.3.2a of 340/                                                                                   360-2000. For equipment of                                                                                   this class which is rated for                                                                                   general use to be applied to                                                                                   a variety of heating units,                                                                                   the indoor-coil airflow rate                                                                                   shall be (1) specified by the                                                                                   manufacturer in Standard                                                                                   Ratings, not to exceed 37.5                                                                                   SCFM/1,000 Btu/h [0.06 m\3\/s                                                                                   per 1,000 W] of rated                                                                                   capacity, or (2) the airflow                                                                                   rate obtained through the                                                                                   indoor coil assembly when the                                                                                   pressure drop across the                                                                                   indoor coil assembly and the                                                                                   recommended enclosures and                                                                                   attachment means is not                                                                                   greater than 0.30 inch of                                                                                   water [75 Pa], whichever is                                                                                   less.Water Cooled AC........................          EER   ARI Standard 340/360-2000  3. Models with Indoor Fans,                                                                                   Not Made for Use With Field                                                                                   Installed Duct Systems: (a)                                                                                   Equipment with indoor fans                                                                                   not made for use with field                                                                                   installed duct systems (free                                                                                   discharge) shall be rated at                                                                                   the indoor-coil airflow rate                                                                                   delivered when operating at 0                                                                                   inches of water [0 Pa]                                                                                   external pressure as                                                                                   specified by the                                                                                   manufacturer.                                                                                   (b) Test indoor air-moving                                                                                   equipment not intended for                                                                                   use with field installed duct                                                                                   systems (free discharge) at 0                                                                                   inches of water [0 Pa]                                                                                   external pressure.Evaporately Cooled AC..................          EER   ARI Standard 340/360-2000  4. Water cooled models: For                                                                                   Standard Ratings of water-                                                                                   cooled units add a total                                                                                   allowance for cooling tower                                                                                   fan motor and circulating                                                                                   water pump motor power inputs                                                                                   in the amount of 10.0 W per                                                                                   1,000 Btu/h [34.1 W per 1,000                                                                                   W] cooling capacity.----------------------------------------------------------------------------------------------------------------\1\ Incorporated by reference, see § 431.95.\2\ The content of stipulations 1, 2(a), 2(b), 3(a), 3(b), and 4 is taken from Sections 2.2.5, 6.1, 6.1.3.3 (c),  6.1.3.3 (b), 6.1.3.6, and 6.1, respectively, of ARI Standard 210/240-2003.
Energy Efficiency Standards
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§ 431.97   Energy efficiency standards and their effective dates.
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(a) Each commercial air conditioner or heat pump manufactured on or after January 1, 1994 (except for large commercial package air-conditioning and heating equipment, for which the effective date is January 1, 1995) and before January 1, 2010 must meet the applicable minimum energy efficiency standard level(s) set forth in Tables 1 and 2 of this section.

                                               Table 1 to § 431.97_Minimum Cooling Efficiency Levels--------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                        Efficiency level \1\                                                                                                           ---------------------------------------------              Product                       Category            Cooling  capacity         Sub-category      Products manufactured  Products manufactured                                                                                                              until  October 29,    on and after October                                                                                                                     2003                 29, 2003--------------------------------------------------------------------------------------------------------------------------------------------------------Small Commercial Packaged Air        Air Cooled, 3 phase...  <65,000 Btu/h......  Split System.........  SEER = 10.0..........  SEER = 10.0. Conditioning and Heating Equipment.                                                                                    --------------------------------------------------------------------                                                                                     Single Package         SEER = 9.7...........  SEER = 9.7.                                    --------------------------------------------------------------------------------------------------------------------                                     Air Cooled............  >=65,000 Btu/h and      All..................  EER = 8.9............  EER = 8.9.                                                              <135,000 Btu/h.                                    --------------------------------------------------------------------------------------------------------------------                                     Water Cooled            <17,000 Btu/h......  AC...................  EER = 9.3............  EER = 12.1.                                      Evaporatively Cooled                                      and Water-Source.                                                                                    --------------------------------------------------------------------                                                                                     HP...................  EER = 9.3............  EER = 11.2.                                                            --------------------------------------------------------------------------------------------                                                             >=17,000 Btu/h and      AC...................  EER = 9.3............  EER = 12.1.                                                              <65,000 Btu/h.                                                                                    --------------------------------------------------------------------                                                                                     HP...................  EER = 9.3............  EER = 12.0.                                                            --------------------------------------------------------------------------------------------                                                             >=65,000 Btu/h and      AC...................  EER = 10.5...........  EER = 11.5.\2\                                                              <135,000 Btu/h.                                                                                    --------------------------------------------------------------------                                                                                     HP...................  EER = 10.5...........  EER = 12.0.--------------------------------------------------------------------------------------------------------------------------------------------------------Large Commercial Packaged Air        Air Cooled............  >=135,000 Btu/h and     All..................  EER = 8.5............  EER = 8.5. Conditioning and Heating Equipment.                          <240,000 Btu/h.                                    --------------------------------------------------------------------------------------------------------------------                                     Water-Cooled and        >=135,000 and           All..................  EER = 9.6............  EER = 9.6.\3\                                      Evaporatively Cooled.   <240,000 Btu/h.--------------------------------------------------------------------------------------------------------------------------------------------------------Packaged Terminal Air Conditioners   All...................  <7,000 Btu/h.......  All..................  EER = 8.88...........  EER = 8.88. and Heat Pumps.                                                            ------------------------                       ---------------------------------------------                                                             >=7,000 Btu/h and                              EER = 10.0 - (0.16 x   EER = 10.0 - (0.16 x                                                              [le]15,000 Btu/h.                              capacity [in kBtu/h    capacity [in kBtu/h                                                                                                             at 95 °F outdoor   at 95 °F outdoor                                                                                                             dry-bulb               dry-bulb                                                                                                             temperature]).         temperature]).                                                            ------------------------                       ---------------------------------------------                                                             >15,000 Btu/h......  .....................  EER = 7.6............  EER = 7.6.--------------------------------------------------------------------------------------------------------------------------------------------------------\1\ For equipment rated according to the ARI standards, all EER values must be rated at 95 °F outdoor dry-bulb temperature for air-cooled products  and evaporatively-cooled products and at 85 °F entering water temperature for water-cooled products. For water-source heat pumps rated according  to the ISO standard, EER must be rated at 30 °C (86 °F) entering water temperature.\2\ Deduct 0.2 from the required EER for units with heating sections other than electric resistance heat.\3\ Effective 10/29/2004, the minimum value becomes EER = 11.0.
                                               Table 2 to § 431.97_Minimum Heating Efficiency Levels--------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                        Efficiency level \1\                                                                                                           ---------------------------------------------              Product                       Category            Cooling  capacity         Sub-category      Products manufactured  Products manufactured                                                                                                              until  October 29,    on and after October                                                                                                                     2003                 29, 2003--------------------------------------------------------------------------------------------------------------------------------------------------------Small Commercial Packaged Air        Air Cooled, 3 Phase...  <65,000 Btu/h......  Split System.........  HSPF = 6.8...........  HSPF = 6.8. Conditioning and Heating Equipment.                                                                                    --------------------------------------------------------------------                                                                                     Single Package.......  HSPF = 6.6...........  HSPF = 6.6.                                    --------------------------------------------------------------------------------------------------------------------                                     Water-source..........  <135,000 Btu/h.....  Split System and       COP = 3.8............  COP = 4.2.                                                                                      Single Package.                                    --------------------------------------------------------------------------------------------------------------------                                     Air Cooled............  >=65,000 Btu/h and      All..................  COP = 3.0............  COP = 3.0.                                                              <135,000 Btu/h.--------------------------------------------------------------------------------------------------------------------------------------------------------Large Commercial Packaged Air        Air Cooled............  >=135,000 Btu/h and     Split System and       COP = 2.9............  COP = 2.9. Conditioning Package and Heating                             <240,000 Btu/h.      Single Package. Equipment.--------------------------------------------------------------------------------------------------------------------------------------------------------Packaged Terminal Heat Pumps.......  All...................  All...................  All..................  COP = 1.3+(0.16 x the  COP = 1.3+(0.16 x the                                                                                                             applicable minimum     applicable minimum                                                                                                             cooling EER            cooling EER                                                                                                             prescribed in Table    prescribed in Table                                                                                                             1_Minimum Cooling      1_Minimum Cooling                                                                                                             Efficiency Levels).    Efficiency Levels).--------------------------------------------------------------------------------------------------------------------------------------------------------\1\ For units tested by ARI standards, all COP values must be rated at 47 °F outdoor dry-bulb temperature for air-cooled products, and at 70 °F  entering water temperature for water-source heat pumps. For heat pumps tested by the ISO Standard 13256-1, the COP values must be obtained at the  rating point with 20 °C (68 °F) entering water temperature.

(b) Commercial package air conditioning and heating equipment manufactured on or after January 1, 2010, shall have Energy Efficiency Ratio and Coefficient of Performance no less than:

 ----------------------------------------------------------------------------------------------------------------               Product                 Cooling capacity (Btu/h)         Category        Efficiency level†----------------------------------------------------------------------------------------------------------------Small commercial package air-          >=65,000 and <135,000  AC...................  EER = 11.2* conditioning and heating equipment                                                     EER = 11.0** (air-cooled).                                                                 HP...................  EER = 11.0*                                                                                        EER = 10.8**Large commercial package air-          >=135,000 and             AC...................  EER = 11.0* conditioning and heating equipment     <240,000.                                    EER = 10.8** (air-cooled).                                                                 HP...................  EER = 10.6*                                                                                        EER = 10.4**Very large commercial package air-     >= 240,000 and            AC...................  EER = 10.0* conditioning (air-cooled).             <760,000.                                    EER = 9.8**                                                                 HP...................  EER = 9.5*                                                                                        EER = 9.3**Small commercial package air-          >=65,000 and <135,000  HP...................  COP = 3.3 conditioning heat pump.Large commercial package air-          >=135,000 and             HP...................  COP = 3.2 conditioning heat pump.                <240,000.Very large commercial package air-     >= 240,000 and            HP...................  COP = 3.2 conditioning heat pump.                <760,000.----------------------------------------------------------------------------------------------------------------* This EER level applies to equipment that has electric resistance heat or no heating.** This EER level applies to equipment with all other heating-system types that are integrated into the unitary  equipment.†EER at a standard temperature rating of 95 °F dry-bulb and COP at a high temperature rating of 47  °F dry-bulb.

[69 FR 61969, Oct. 21, 2004, as amended at 70 FR 60415, Oct. 18, 2005; 70 FR 61698, Oct. 25, 2005]

Subpart G—Commercial Water Heaters, Hot Water Supply Boilers and Unfired Hot Water Storage Tanks
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Source:  69 FR 61983, Oct. 21, 2004, unless otherwise noted.

§ 431.101   Purpose and scope.
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This subpart contains energy conservation requirements for certain commercial water heaters, hot water supply boilers and unfired hot water storage tanks, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311–6317.

[69 FR 61983, Oct. 21, 2004, as amended at 70 FR 60415, Oct. 18, 2005]

§ 431.102   Definitions concerning commercial water heaters, hot water supply boilers, and unfired hot water storage tanks.
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The following definitions apply for purposes of this subpart G, and of subparts J through M of this part. Any words or terms not defined in this section or elsewhere in this part shall be defined as provided in section 340 of the Act, 42 U.S.C. 6311.

ASTM–D–2156–80 means the test standard published in 1980 by the American Society of Testing and Measurements and titled Method for Smoke Density in Flue Gases from Burning Distillate Fuels.

Hot water supply boiler means a packaged boiler that is industrial equipment and that,

(1) Has an input rating from 300,000 Btu/hr to 12,500,000 Btu/hr and of at least 4,000 Btu/hr per gallon of stored water,

(2) Is suitable for heating potable water, and

(3) Meets either or both of the following conditions:

(i) It has the temperature and pressure controls necessary for heating potable water for purposes other than space heating, or

(ii) The manufacturer's product literature, product markings, product marketing, or product installation and operation instructions indicate that the boiler's intended uses include heating potable water for purposes other than space heating.

Instantaneous water heater means a water heater that has an input rating not less than 4,000 Btu/hr per gallon of stored water, and that is industrial equipment, including products meeting this description that are designed to heat water to temperatures of 180 °F or higher.

Packaged boiler means a boiler that is shipped complete with heating equipment, mechanical draft equipment and automatic controls; usually shipped in one or more sections and does not include a boiler that is custom designed and field constructed. If the boiler is shipped in more than one section, the sections may be produced by more than one manufacturer, and may be originated or shipped at different times and from more than one location.

R-value means the thermal resistance of insulating material as determined based on ASTM Standard Test Method C177–97 or C518–91 and expressed in ( °F·ft2 ·h/Btu).

Standby loss means the average hourly energy required to maintain the stored water temperature, expressed as applicable either (1) as a percentage (per hour) of the heat content of the stored water and determined by the formula for S given in Section 2.10 of ANSI Z21.10.3–1998, denoted by the term “S,” or (2) in Btu per hour based on a 70 °F temperature differential between stored water and the ambient temperature, denoted by the term “SL.”

Storage water heater means a water heater that heats and stores water within the appliance at a thermostatically controlled temperature for delivery on demand and that is industrial equipment. Such term does not include units with an input rating of 4,000 Btu/hr or more per gallon of stored water.

Tank surface area means, for the purpose of determining portions of a tank requiring insulation, those areas of a storage tank, including hand holes and manholes, in its uninsulated or pre-insulated state, that do not have pipe penetrations or tank supports attached.

Thermal efficiency for an instantaneous water heater, a storage water heater or a hot water supply boiler means the ratio of the heat transferred to the water flowing through the water heater to the amount of energy consumed by the water heater as measured during the thermal efficiency test procedure prescribed in this subpart.

Unfired hot water storage tank means a tank used to store water that is heated externally, and that is industrial equipment.

Test Procedures
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§ 431.105   Materials incorporated by reference.
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(a) The Department incorporates by reference the following test procedures into Subpart G of Part 431. The Director of the Federal Register has approved the material listed in paragraph (b) of this section for incorporation by reference in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Any subsequent amendment to this material by the standard-setting organization will not affect the Department test procedures unless and until the Department amends its test procedures. The Department incorporates the material as it exists on the date of the approval and a notice of any change in the material will be published in the Federal Register.

(b) Test procedure incorporated by reference. American National Standards Institute (ANSI) Standard: “Gas Water Heaters, Volume III, Storage Water Heaters with Input Ratings above 75,000 Btu per Hour, Circulating and Instantaneous, Z21.10.3–1998, CSA 4.3–M98, and its Addenda, ANSI Z21.10.3a–2000, CSA 4.3a–M00,” IBR approved for §431.105. The Department is incorporating by reference the “Method of Test” subsections of sections 2.9 and 2.10 in ANSI Z21.10.3–1998, CSA 4.3–M98, and the sections referenced there, including sections 2.1.7, 2.3.3, 2.3.4, 2.30 and Figure 3.

(c) Availability of references—(1) Inspection of test procedures. The test procedures incorporated by reference are available for inspection at:

(i) National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.php.

(ii) U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Hearings and Dockets, “Test Procedures and Efficiency Standards for Commercial Water Heaters, Hot Water Supply Boilers, and Unfired Hot Water Storage Tanks,” Docket No. EE–RM/TP–99–480, Forrestal Building, 1000 Independence Avenue, SW., Washington, DC 20585.

(2) Obtaining copies of Standards. Anyone can purchase a copy of the standard incorporated by reference from Global Engineering Documents, 15 Inverness Way West, Englewood, CO 80112, or http://global.ihs.com/, or http://webstore.ansi.org/ansidocstore/.

(d) Reference standards—(1) General. The standards listed in this paragraph are referred to in the Department test procedures in this subpart, but they are not incorporated by reference. These sources are given here for information and guidance.

(2) List of References. (i) ASTM Standard Test Method C518–91, “Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus.”

(ii) ASTM Standard Test Method C177–97, “Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus.”

(iii) ASTM Standard Test Method D2156–80, “Method for Smoke Density in Flue Gases from Burning Distillate Fuels.”

§ 431.106   Uniform test method for the measurement of energy efficiency of commercial water heaters and hot water supply boilers (other than commercial heat pump water heaters).
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(a) Scope. This section covers the test procedures you must follow if, pursuant to EPCA, you are measuring the thermal efficiency or standby loss, or both, of a storage or instantaneous water heater or hot water supply boiler (other than a commercial heat pump water heater).

(b) Testing and Calculations. Determine the energy efficiency of each covered product by conducting the test procedure(s), set forth in the two rightmost columns of the following table, that apply to the energy efficiency descriptor(s) for that product:

 ----------------------------------------------------------------------------------------------------------------                                                                 Use test setup,                                                                  equipment and              Product                   Energy efficiency         procedures in         With these additional                                           descriptor          subsection labeled            stipulations                                                              ``Method of Test'' of----------------------------------------------------------------------------------------------------------------Gas-fired Storage and Instantaneous  Thermal Efficiency....  ANSI Z21.10.3-1998,     A. For all products, the Water Heaters and Hot Water Supply                           § 2.9**.           duration of the standby Boilers*.                                                                            loss test shall be until                                                                                      whichever of the following                                                                                      occurs first after you                                                                                      begin to measure the fuel                                                                                      and/or electric                                                                                      consumption: (1) The first                                                                                      cutout after 24 hours or                                                                                      (2) 48 hours, if the water                                                                                      heater is not in the                                                                                      heating mode at that time.                                     Standby Loss..........  ANSI Z21.10.3-1998,     B. For oil and gas                                                              § 2.10**.          products, the standby loss                                                                                      in Btu per hour must be                                                                                      calculated as follows: SL                                                                                      (Btu per hour) = S (% per                                                                                      hour) x 8.25 (Btu/gal-F) x                                                                                      Measured Volume (gal) x 70                                                                                      (degrees F).                                                                                     C. For oil-fired products,                                                                                      apply the following in                                                                                      conducting the thermal                                                                                      efficiency and standby                                                                                      loss tests:                                                                                     (1) Venting                                                                                      Requirements_Connect a                                                                                      vertical length of flue                                                                                      pipe to the flue gas                                                                                      outlet of sufficient                                                                                      height so as to meet the                                                                                      minimum draft specified by                                                                                      the manufacturer.Oil-fired Storage and Instantaneous  Thermal Efficiency....  ANSI Z21.10.3-1998,     (2) Oil Supply_Adjust the Water Heaters and Hot Water Supply                           § 2.9**.           burner rate so that: (a) Boilers*.                                                                            The hourly Btu input rate                                                                                      lies within ±2                                                                                      percent of the                                                                                      manufacturer's specified                                                                                      input rate, (b) the CO2                                                                                      reading shows the value                                                                                      specified by the                                                                                      manufacturer, (c) smoke in                                                                                      the flue does not exceed                                                                                      No. 1 smoke as measured by                                                                                      the procedure in ASTM-D-                                                                                      2156-80, and (d) fuel pump                                                                                      pressure lies within                                                                                      ±10 percent of                                                                                      manufacturer's                                                                                      specifications.                                     Standby Loss..........  ANSI Z21.10.3-1998,     D. For electric products,                                                              § 2.10**.          apply the following in                                                                                      conducting the standby                                                                                      loss test:                                                                                     (1) Assume that the thermal                                                                                      efficiency (Et) of                                                                                      electric water heaters                                                                                      with immersed heating                                                                                      elements is 98 percent.                                                                                     (2) Maintain the electrical                                                                                      supply voltage to within                                                                                      ±5 percent of the                                                                                      center of the voltage                                                                                      range specified on the                                                                                      water heater nameplate.Electric Storage and Instantaneous   Standby Loss..........  ANSI Z21.10.3-1998,     (3) If the set up includes Water Heaters.                                               § 2.10**.          multiple adjustable                                                                                      thermostats, set the                                                                                      highest one first to yield                                                                                      a maximum water                                                                                      temperature in the                                                                                      specified range as                                                                                      measured by the topmost                                                                                      tank thermocouple. Then                                                                                      set the lower                                                                                      thermostat(s) to yield a                                                                                      maximum mean tank                                                                                      temperature within the                                                                                      specified range.----------------------------------------------------------------------------------------------------------------*As to hot water supply boilers with a capacity of less than 10 gallons, these test methods become mandatory on  October 21, 2005. Prior to that time, you may use for these products either (1) these test methods if you rate  the product for thermal efficiency, or (2) the test methods in Subpart E if you rate the product for  combustion efficiency as a commercial packaged boiler.**Incorporated by reference, see § 431.105.
§ 431.107   Uniform test method for the measurement of energy efficiency of commercial heat pump water heaters. [Reserved]
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Energy Conservation Standards
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§ 431.110   Energy conservation standards and their effective dates.
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Each commercial storage water heater, instantaneous water heater, unfired hot water storage tank and hot water supply boiler1 must meet the applicable energy conservation standard level(s) as follows:

  

1 Any packaged boiler that provides service water, that meets the definition of “commercial packaged boiler” in subpart E of this part, but does not meet the definition of “ hot water supply boiler” in subpart G, must meet the requirements that apply to it under subpart E.

 ----------------------------------------------------------------------------------------------------------------                                                                   Energy conservation standard \a\ (products                                                                manufactured on and after October 29, 2003) \b\              Product                          Size           --------------------------------------------------                                                                    Minimum thermal        Maximum standby loss                                                                      efficiency                   \c\----------------------------------------------------------------------------------------------------------------Electric storage water heaters....  All......................  N/A.....................  0.30 + 27/Vm (%/hr)Gas-fired storage water heaters...  [le]155,000 Btu/hr.......  80%.....................  Q/800 + 110(Vr) 1/2                                    >155,000 Btu/hr.......  80%.....................   (Btu/hr)                                                                                         Q/800 + 110(Vr) 1/2                                                                                          (Btu/hr)Oil-fired storage water heaters...  [le]155,000 Btu/hr.......  78%.....................  Q/800 + 110(Vr) 1/2                                    >155,000 Btu/hr.......  78%.....................   (Btu/hr)                                                                                         Q/800 + 110(Vr) 1/2                                                                                          (Btu/hr)Gas-fired instantaneous water       <10 gal...............  80%.....................  N/A heaters and hot water supply       >=10 gal.................  80%.....................  Q/800 + 110(Vr) 1/2 boilers.                                                                                 (Btu/hr)Oil-fired instantaneous water       <10 gal...............  80%.....................  N/A heaters and hot water supply       >=10 gal.................  78%.....................  Q/800 + 110(Vr) 1/2 boilers.                                                                                 (Btu/hr)----------------------------------------------------------------------------------------------------------------
 ------------------------------------------------------------------------                                                       Minimum thermal           Product                     Size               insulation------------------------------------------------------------------------Unfired hot water storage      All.................  R-12.5 tank.------------------------------------------------------------------------\a\ Vm is the measured storage volume and Vr is the rated volume, both  in gallons. Q is the nameplate input rate in Btu/hr.\b\ For hot water supply boilers with a capacity of less than 10  gallons: (1) the standards are mandatory for products manufactured on  and after October 21, 2005, and (2) products manufactured prior to  that date, and on or after October 23, 2003, must meet either the  standards listed in this table or the applicable standards in Subpart  E of this Part for a ``commercial packaged boiler.''\c\ Water heaters and hot water supply boilers having more than 140  gallons of storage capacity need not meet the standby loss requirement  if (1) the tank surface area is thermally insulated to R-12.5 or more,  (2) a standing pilot light is not used and (3) for gas or oil-fired  storage water heaters, they have a fire damper or fan assisted  combustion.

[69 FR 61983, Oct. 21, 2004; 69 FR 63574, Nov. 2, 2004]

Subpart H—Automatic Commercial Ice Makers
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Source:  70 FR 60415, Oct. 18, 2005, unless otherwise noted.

§ 431.131   Purpose and scope.
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This subpart contains energy conservation requirements for commercial ice makers, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311–6317.

§ 431.132   Definitions concerning automatic commercial ice makers.
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Automatic commercial ice maker means a factory-made assembly (not necessarily shipped in 1 package) that—

(1) Consists of a condensing unit and ice-making section operating as an integrated unit, with means for making and harvesting ice; and

(2) May include means for storing ice, dispensing ice, or storing and dispensing ice.

Harvest rate means the amount of ice (at 32 degrees F) in pounds produced per 24 hours.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.136   Energy conservation standards and their effective dates.
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Each automatic commercial ice maker that produces cube type ice with capacities between 50 and 2500 pounds per 24-hour period when tested according to the test standard established in accordance with section 343 of EPCA (42 U.S.C. 6314) and is manufactured on or after January 1, 2010, shall meet the following standard levels:

 ----------------------------------------------------------------------------------------------------------------                                                                                               Maximum condenser         Equipment type             Type of cooling   Harvest rate  (lbs  Maximum energy use  water use *  (gal/                                                         ice/24 hours)     (kWh/100 lbs ice)     100 lbs ice)----------------------------------------------------------------------------------------------------------------Ice Making Head.................  Water.............  <500...........  7.80-0.0055H......  200-0.022H.Ice Making Head.................  Water.............  >=500 and <1436  5.58-0.0011H......  200-0.022H.Ice Making Head.................  Water.............  >=1436............  4.0...............  200-0.022H.Ice Making Head.................  Air...............  <450...........  10.26-0.0086H.....  Not applicable.Ice Making Head.................  Air...............  >=450.............  6.89-0.0011H......  Not applicable.Remote Condensing (but not        Air...............  <1000..........  8.85-0.0038H......  Not applicable. remote compressor).Remote Condensing (but not        Air...............  >=1000............  5.1...............  Not applicable. remote compressor).Remote Condensing and Remote      Air...............  <934...........  8.85-0.0038H......  Not applicable. Compressor.Remote Condensing and Remote      Air...............  >=934.............  5.3...............  Not applicable. Compressor.Self Contained..................  Water.............  <200...........  11. 40-0.019H.....  191-0.0315H.Self Contained..................  Water.............  >=200.............  7.6...............  191-0.0315H.Self Contained..................  Air...............  <175...........  18.0-0.0469H......  Not applicable.Self Contained..................  Air...............  >=175.............  9.8...............  Not applicable.----------------------------------------------------------------------------------------------------------------H Harvest rate in pounds per 24 hours.* Water use is for the condenser only and does not include potable water used to make ice.

[70 FR 60415, Oct. 18, 2005; 70 FR 61698, Oct. 25, 2005]

Subpart I—Commercial Clothers Washers
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Source:  70 FR 60416, Oct. 18, 2005, unless otherwise noted.

§ 431.151   Purpose and scope.
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This subpart contains energy conservation requirements for commercial clothes washers, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311–6317.

§ 431.152   Definitions concerning commercial clothes washers.
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Commercial clothes washer means a soft-mounted front-loading or soft-mounted top-loading clothes washer that—

(1) Has a clothes container compartment that—

(i) For horizontal-axis clothes washers, is not more than 3.5 cubic feet; and

(ii) For vertical-axis clothes washers, is not more than 4.0 cubic feet; and

(2) Is designed for use in—

(i) Applications in which the occupants of more than one household will be using the clothes washer, such as multi-family housing common areas and coin laundries; or

(ii) Other commercial applications.

Test Procedures
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§ 431.154   Test procedures.
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The test procedures for residential clothes washers in Appendix J1 to subpart B of part 430 of this title shall be used to test commercial clothes washers.

Energy Conservation Standards
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§ 431.156   Energy and water conservation standards and effective dates.
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Each commercial clothes washer manufactured on or after January 1, 2007, shall have—

(1) A modified energy factor of at least 1.26; and

(2) A water consumption factor of not more than 9.5.

Subpart J—Provisions for Commercial HVAC & Water Heating Products
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Source:  69 FR 61941, Oct. 21, 2004, unless otherwise noted.

§ 431.171   Purpose and scope. [Reserved]
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§ 431.172   Definitions.
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The following definitions apply for purposes of subparts D through G and J through M of this part. Other terms in these subparts shall be as defined elsewhere in this Part and, if not defined in this part, shall have the meaning set forth in Section 340 of the Act.

Basic model means, with respect to a commercial HVAC & WH product, all units of such product, manufactured by one manufacturer, which have the same primary energy source and which do not have any differing electrical, physical, or functional characteristics that affect energy consumption.

Commercial HVAC & WH product means any small or large commercial package air-conditioning and heating equipment, packaged terminal air conditioner, packaged terminal heat pump, commercial packaged boiler, hot water supply boiler, commercial warm air furnace, instantaneous water heater, storage water heater, or unfired hot water storage tank.

Flue loss means the sum of the sensible heat and latent heat above room temperature of the flue gases leaving the appliance.

Industrial equipment means an article of equipment, regardless of whether it is in fact distributed in commerce for industrial or commercial use, of a type which:

(1) In operation consumes, or is designed to consume energy;

(2) To any significant extent, is distributed in commerce for industrial or commercial use; and

(3) Is not a “covered product” as defined in Section 321(2) of EPCA, 42 U.S.C. 6291(2), other than a component of a covered product with respect to which there is in effect a determination under Section 341(c) of EPCA, 42 U.S.C. 6312(c).

Private labeler means, with respect to a commercial HVAC & WH product, an owner of a brand or trade mark on the label of a product which bears a private label. A commercial HVAC & WH product bears a private label if :

(1) Such product (or its container) is labeled with the brand or trademark of a person other than a manufacturer of such product;

(2) The person with whose brand or trademark such product (or container) is labeled has authorized or caused such product to be so labeled; and

(3) The brand or trademark of a manufacturer of such product does not appear on such label.

Subpart K—Distribution Transformers
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Source:  70 FR 60416, Oct. 18, 2005, unless otherwise noted.

§ 431.191   Purpose and scope.
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This subpart contains energy conservation requirements for distribution transformers, pursuant to Parts B and C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6291–6317.

[71 FR 24995, Apr. 27, 2006]

§ 431.192   Definitions.
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The following definitions apply for purposes of this subpart:

Autotransformer means a transformer that:

(1) Has one physical winding that consists of a series winding part and a common winding part;

(2) Has no isolation between its primary and secondary circuits; and

(3) During step-down operation, has a primary voltage that is equal to the total of the series and common winding voltages, and a secondary voltage that is equal to the common winding voltage.

Basic model means a group of models of distribution transformers manufactured by a single manufacturer, that have the same insulation type (i.e., liquid-immersed or dry-type), have the same number of phases (i.e., single or three), have the same standard kVA rating, and do not have any differentiating electrical, physical or functional features that affect energy consumption. Differences in voltage and differences in basic impulse insulation level (BIL) rating are examples of differentiating electrical features that affect energy consumption.

Distribution transformer means a transformer that—

(1) Has an input voltage of 34.5 kV or less;

(2) Has an output voltage of 600 V or less;

(3) Is rated for operation at a frequency of 60 Hz; and

(4) Has a capacity of 10 kVA to 2500 kVA for liquid-immersed units and 15 kVA to 2500 kVA for dry-type units; but

(5) The term “distribution transformer” does not include a transformer that is an—

(i) Autotransformer;

(ii) Drive (isolation) transformer;

(iii) Grounding transformer;

(iv) Machine-tool (control) transformer;

(v) Nonventilated transformer;

(vi) Rectifier transformer;

(vii) Regulating transformer;

(viii) Sealed transformer;

(ix) Special-impedance transformer;

(x) Testing transformer;

(xi) Transformer with tap range of 20 percent or more;

(xii) Uninterruptible power supply transformer; or

(xiii) Welding transformer.

Drive (isolation) transformer means a transformer that:

(1) Isolates an electric motor from the line;

(2) Accommodates the added loads of drive-created harmonics; and

(3) Is designed to withstand the additional mechanical stresses resulting from an alternating current adjustable frequency motor drive or a direct current motor drive.

Efficiency means the ratio of the useful power output to the total power input.

Excitation current or no-load current means the current that flows in any winding used to excite the transformer when all other windings are open-circuited.

Grounding transformer means a three-phase transformer intended primarily to provide a neutral point for system-grounding purposes, either by means of:

(1) A grounded wye primary winding and a delta secondary winding; or

(2) A transformer with its primary winding in a zig-zag winding arrangement, and with no secondary winding.

Liquid-immersed distribution transformer means a distribution transformer in which the core and coil assembly is immersed in an insulating liquid.

Load loss means, for a distribution transformer, those losses incident to a specified load carried by the transformer, including losses in the windings as well as stray losses in the conducting parts of the transformer.

Low-voltage dry-type distribution transformer means a distribution transformer that—

(1) Has an input voltage of 600 volts or less;

(2) Is air-cooled; and

(3) Does not use oil as a coolant.

Machine-tool (control) transformer means a transformer that is equipped with a fuse or other over-current protection device, and is generally used for the operation of a solenoid, contactor, relay, portable tool, or localized lighting.

Medium-voltage dry-type distribution transformer means a distribution transformer in which the core and coil assembly is immersed in a gaseous or dry-compound insulating medium, and which has a rated primary voltage between 601 V and 34.5 kV.

No-load loss means those losses that are incident to the excitation of the transformer.

Nonventilated transformer means a transformer constructed so as to prevent external air circulation through the coils of the transformer while operating at zero gauge pressure.

Phase angle means the angle between two phasors, where the two phasors represent progressions of periodic waves of either:

(1) Two voltages;

(2) Two currents; or

(3) A voltage and a current of an alternating current circuit.

Phase angle correction means the adjustment (correction) of measurement data to negate the effects of phase angle error.

Phase angle error means incorrect displacement of the phase angle, introduced by the components of the test equipment.

Rectifier transformer means a transformer that operates at the fundamental frequency of an alternating-current system and that is designed to have one or more output windings connected to a rectifier.

Reference temperature means 20 °C for no-load loss, 55 °C for load loss of liquid-immersed distribution transformers at 50 percent load, and 75 °C for load loss of both low-voltage and medium-voltage dry-type distribution transformers, at 35 percent load and 50 percent load, respectively. It is the temperature at which the transformer losses must be determined, and to which such losses must be corrected if testing is done at a different point. (These temperatures are specified in the test method in Appendix A to this part.)

Regulating transformer means a transformer that varies the voltage, the phase angle, or both voltage and phase angle, of an output circuit and compensates for fluctuation of load and input voltage, phase angle or both voltage and phase angle.

Sealed transformer means a transformer designed to remain hermetically sealed under specified conditions of temperature and pressure.

Special-impedance transformer means any transformer built to operate at an impedance outside of the normal impedance range for that transformer's kVA rating. The normal impedance range for each kVA rating for liquid-immersed and dry-type transformers is shown in Tables 1 and 2, respectively.

                        Table 1_Normal Impedance Ranges for Liquid-Immersed Transformers----------------------------------------------------------------------------------------------------------------                            Single-phase transformers                                Three-phase transformers----------------------------------------------------------------------------------------------------------------                               kVA                                Impedance  (%)        kVA       Impedance  (%)----------------------------------------------------------------------------------------------------------------10..............................................................         1.0-4.5              15         1.0-4.515..............................................................         1.0-4.5              30         1.0-4.525..............................................................         1.0-4.5              45         1.0-4.537.5............................................................         1.0-4.5              75         1.0-5.050..............................................................         1.5-4.5           112.5         1.2-6.075..............................................................         1.5-4.5             150         1.2-6.0100.............................................................         1.5-4.5             225         1.2-6.0167.............................................................         1.5-4.5             300         1.2-6.0250.............................................................         1.5-6.0             500         1.5-7.0333.............................................................         1.5-6.0             750         5.0-7.5500.............................................................         1.5-7.0            1000         5.0-7.5667.............................................................         5.0-7.5            1500         5.0-7.5833.............................................................         5.0-7.5            2000         5.0-7.5                                                                                            2500         5.0-7.5----------------------------------------------------------------------------------------------------------------
                            Table 2_Normal Impedance Ranges for Dry-Type Transformers----------------------------------------------------------------------------------------------------------------                            Single-phase transformers                                Three-phase transformers----------------------------------------------------------------------------------------------------------------                               kVA                                Impedance  (%)        kVA       Impedance  (%)----------------------------------------------------------------------------------------------------------------15..............................................................         1.5-6.0              15         1.5-6.025..............................................................         1.5-6.0              30         1.5-6.037.5............................................................         1.5-6.0              45         1.5-6.050..............................................................         1.5-6.0              75         1.5-6.075..............................................................         2.0-7.0           112.5         1.5-6.0100.............................................................         2.0-7.0             150         1.5-6.0167.............................................................         2.5-8.0             225         3.0-7.0250.............................................................         3.5-8.0             300         3.0-7.0333.............................................................         3.5-8.0             500         4.5-8.0500.............................................................         3.5-8.0             750         5.0-8.0667.............................................................         5.0-8.0            1000         5.0-8.0833.............................................................         5.0-8.0            1500         5.0-8.0                                                                                            2000         5.0-8.0                                                                                            2500         5.0-8.0----------------------------------------------------------------------------------------------------------------

Temperature correction means the mathematical correction(s) of measurement data, obtained when a transformer is tested at a temperature that is different from the reference temperature, to the value(s) that would have been obtained if the transformer had been tested at the reference temperature.

Test current means the current of the electrical power supplied to the transformer under test.

Test frequency means the frequency of the electrical power supplied to the transformer under test.

Test voltage means the voltage of the electrical power supplied to the transformer under test.

Testing transformer means a transformer used in a circuit to produce a specific voltage or current for the purpose of testing electrical equipment.

Total loss means the sum of the no-load loss and the load loss for a transformer.

Transformer means a device consisting of 2 or more coils of insulated wire that transfers alternating current by electromagnetic induction from 1 coil to another to change the original voltage or current value.

Transformer with tap range of 20 percent or more means a transformer with multiple voltage taps, the highest of which equals at least 20 percent more than the lowest, computed based on the sum of the deviations of the voltages of these taps from the transformer's nominal voltage.

Uninterruptible power supply transformer means a transformer that supplies power to an uninterruptible power system, which in turn supplies power to loads that are sensitive to power failure, power sags, over voltage, switching transients, line noise, and other power quality factors.

Waveform correction means the adjustment(s) (mathematical correction(s)) of measurement data obtained with a test voltage that is non-sinusoidal, to a value(s) that would have been obtained with a sinusoidal voltage.

Welding transformer means a transformer designed for use in arc welding equipment or resistance welding equipment.

[70 FR 60416, Oct. 18, 2005, as amended at 71 FR 24995, Apr. 27, 2006]

Test Procedures
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§ 431.193   Test procedures for measuring energy consumption of distribution transformers.
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The test procedures for measuring the energy efficiency of distribution transformers for purposes of EPCA are specified in Appendix A to this subpart.

[71 FR 24997, Apr. 27, 2006]

Energy Conservation Standards
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§ 431.196   Energy conservation standards and their effective dates.
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(a) Low Voltage Dry-Type Distribution Transformers. The efficiency of a low voltage dry-type distribution transformer manufactured on or after January 1, 2007, shall be no less than the following:

 ----------------------------------------------------------------------------------------------------------------                                  Single phase                                              Three phase----------------------------------------------------------------------------------------------------------------                                                                  Efficiency (%)                  Efficiency (%)                               kVA                                      \1\             kVA             \1\----------------------------------------------------------------------------------------------------------------15..............................................................            97.7              15            97.025..............................................................            98.0              30            97.537.5............................................................            98.2              45            97.750..............................................................            98.3              75            98.075..............................................................            98.5           112.5            98.2100.............................................................            98.6             150            98.3167.............................................................            98.7             225            98.5250.............................................................            98.8             300            98.6333.............................................................            98.9             500            98.7                                                                                             750            98.8                                                                                            1000            98.9----------------------------------------------------------------------------------------------------------------\1\ Efficiencies are determined at the following reference conditions: (1) for no-load losses, at the  temperature of 20 °C, and (2) for load-losses, at the temperature of 75 °C and 35 percent of nameplate  load.(Source: Table 4-2 of National Electrical Manufacturers Association (NEMA) Standard TP-1-2002, ``Guide for  Determining Energy Efficiency for Distribution Transformers.'')

(b) Liquid-Immersed Distribution Transformers. [Reserved]

(c) Medium Voltage Dry-Type Distribution Transformers. [Reserved]

[70 FR 60416, Oct. 18, 2005, as amended at 71 FR 24997, Apr. 27, 2006]

Compliance and Enforcement
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Source:  71 FR 24997, Apr. 27, 2006, unless otherwise noted.

§ 431.197   Manufacturer's determination of efficiency for distribution transformers.
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When a manufacturer or other party (both of which this section refers to as a “manufacturer”) determines the efficiency of a distribution transformer in order to comply with an obligation imposed on it by or pursuant to Part C of Title III of EPCA, 42 U.S.C. 6311–6317, this section applies. This section does not apply to enforcement testing conducted pursuant to §431.198 of this part.

(a) Methods used to determine efficiency—(1) General requirements. A manufacturer must determine the efficiency of each basic model of distribution transformer either by testing, in accordance with §431.193 of this part and paragraphs (b)(2) and (b)(3) of this section, or by application of an alternative efficiency determination method (AEDM) that meets the requirements of paragraphs (a)(2) and (a)(3) of this section; provided, however, that a manufacturer may use an AEDM to determine the efficiency of one or more of its untested basic models only if it determines the efficiency of at least five of its other basic models (selected in accordance with paragraph (b)(1) of this section) through actual testing. For each basic model of distribution transformer that has a configuration of windings which allows for more than one nominal rated voltage, the manufacturer must determine the basic model's efficiency either at the voltage at which the highest losses occur or at each voltage at which the transformer is rated to operate.

(2) Alternative efficiency determination method. A manufacturer may apply an AEDM to a basic model pursuant to paragraph (a)(1) of this section only if:

(i) The AEDM has been derived from a mathematical model that represents the electrical characteristics of that basic model;

(ii) The AEDM is based on engineering and statistical analysis, computer simulation or modeling, or other analytic evaluation of performance data; and

(iii) The manufacturer has substantiated the AEDM, in accordance with paragraph (a)(3) of this section, by applying it to, and testing, at least five other basic models of the same type, i.e., low-voltage dry-type distribution transformers, medium-voltage dry-type distribution transformers, or liquid-immersed distribution transformers.

(3) Substantiation of an alternative efficiency determination method. Before using an AEDM, the manufacturer must substantiate the AEDM's accuracy and reliability as follows:

(i) Apply the AEDM to at least five of the manufacturer's basic models that have been selected for testing in accordance with paragraph (b)(1) of this section, and calculate the power loss for each of these basic models;

(ii) Test at least five units of each of these basic models in accordance with the applicable test procedure and paragraph (b)(2) of this section, and determine the power loss for each of these basic models;

(iii) The predicted total power loss for each of these basic models, calculated by applying the AEDM pursuant to paragraph (a)(3)(i) of this section, must be within plus or minus five percent of the mean total power loss determined from the testing of that basic model pursuant to paragraph (a)(3)(ii) of this section; and

(iv) Calculate for each of these basic models the percentage that its power loss calculated pursuant to paragraph (a)(3)(i) is of its power loss determined from testing pursuant to paragraph (a)(3)(ii), compute the average of these percentages, and that calculated average power loss, expressed as a percentage of the average power loss determined from testing, must be no less than 97 percent and no greater than 103 percent.

(4) Subsequent verification of an AEDM. (i) Each manufacturer that has used an AEDM under this section shall have available for inspection by the Department of Energy records showing: The method or methods used; the mathematical model, the engineering or statistical analysis, computer simulation or modeling, and other analytic evaluation of performance data on which the AEDM is based; complete test data, product information, and related information that the manufacturer has generated or acquired pursuant to paragraph (a)(3) of this section; and the calculations used to determine the efficiency and total power losses of each basic model to which the AEDM was applied.

(ii) If requested by the Department, the manufacturer shall conduct simulations to predict the performance of particular basic models of distribution transformers specified by the Department, analyses of previous simulations conducted by the manufacturer, sample testing of basic models selected by the Department, or a combination of the foregoing.

(b) Additional testing requirements—(1) Selection of basic models for testing if an AEDM is to be applied. (i) A manufacturer must select basic models for testing in accordance with the following criteria:

(A) Two of the basic models must be among the five basic models with the highest unit volumes of production by the manufacturer in the prior year, or during the prior 12-calendar-month period beginning in 2003,1 whichever is later;

1 When identifying these five basic models, any basic model that does not comply with Federal energy conservation standards for distribution transformers that may be in effect shall be excluded from consideration.

(B) No two basic models should have the same combination of power and voltage ratings; and

(C) At least one basic model should be single-phase and at least one should be three-phase.

(ii) In any instance where it is impossible for a manufacturer to select basic models for testing in accordance with all of these criteria, the criteria shall be given priority in the order in which they are listed. Within the limits imposed by the criteria, basic models shall be selected randomly.

(2) Selection of units for testing within a basic model. For each basic model a manufacturer selects for testing, it shall select and test units as follows:

(i) If the manufacturer would produce five or fewer units of a basic model over a reasonable period of time (approximately 180 days), then it must test each unit. However, a manufacturer may not use a basic model with a sample size of fewer than five units to substantiate an AEDM pursuant to paragraph (a)(3) of this section.

(ii) If the manufacturer produces more than five units over such period of time, it must either test all such units or select a sample of at least five units at random and test them. Any such sample shall be comprised of production units of the basic model, or units that are representative of such production units.

(3) Applying results of testing. In a test of compliance with a represented efficiency, the average efficiency of the sample, X , which is defined by

where Xi is the measured efficiency of unit i and n is the number of units tested, must satisfy the condition:

where RE is the represented efficiency.

Effective Date Note:  At 71 FR 24997, Apr. 27, 2006, §431.197 was added, effective May 30, 2006, except for paragraph (a)(4)(i) which contains information collection requirements and will not become effective until approval has been given by the Office of Management and Budget.

§ 431.198   Enforcement testing for distribution transformers.
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(a) Test notice. Upon receiving information in writing, concerning the energy performance of a particular distribution transformer sold by a particular manufacturer or private labeler, which indicates that the transformer may not be in compliance with the applicable energy efficiency standard, or upon undertaking to ascertain the accuracy of the efficiency rating on the nameplate or in marketing materials for a distribution transformer, disclosed pursuant to this part, the Department may conduct testing of that equipment under this subpart by means of a test notice addressed to the manufacturer in accordance with the following requirements:

(1) The test notice procedure will only be followed after the Department has examined the underlying test data (or, where appropriate, data as to use of an AEDM) provided by the manufacturer and after the manufacturer has been offered the opportunity to meet with the Department to verify, as applicable, compliance with the applicable efficiency standard, or the accuracy of labeling information, or both. In addition, where compliance of a basic model was certified based on an AEDM, the Department shall have the discretion to pursue the provisions of §431.197(a)(4)(ii) prior to invoking the test notice procedure. The Department shall be permitted to observe any reverification procedures undertaken pursuant to this subpart, and to inspect the results of such reverification.

(2) The Department will mail or deliver the test notice to the plant manager or other responsible official, as designated by the manufacturer.

(3) The test notice will specify the basic model(s) to be selected for testing, the method of selecting the test sample, the date and time at which testing shall be initiated, the date by which testing is scheduled to be completed and the facility at which testing will be conducted. The test notice may also provide for situations in which a specified basic model is unavailable for testing, and may include alternative basic models. The specified basic model may be one either that the manufacturer has rated by actual testing or that it has rated by the use of an AEDM.

(4) The Department may require in the test notice that the manufacturer shall ship at its expense a reasonable number of units of each basic model specified in such test notice to a testing laboratory designated by the Department. The number of units of each basic model specified in a test notice shall not exceed twenty (20).

(5) Except as required or provided in paragraphs (a)(6) or (a)(7) of this section, initially the Department will test five units.

(6) Except as provided in paragraph (a)(7) of this section, if fewer than five units of a basic model are available for testing when the manufacturer receives the test notice, then

(i) DOE will test the available unit(s); or

(ii) If one or more other units of the basic model are expected to become available within six months, DOE may instead, at its discretion, test either:

(A) The available unit(s) and one or more of the other units that subsequently become available (up to a maximum of twenty); or

(B) Up to twenty of the other units that subsequently become available.

(7) Notwithstanding paragraphs (a)(5) and (a)(6) of this section, if testing of the available or subsequently available units of a basic model would be impractical, as for example where a basic model is very large, has unusual testing requirements, or has limited production, the Department may in its discretion decide to base the determination of compliance on the testing of fewer than the available number of units, if the manufacturer so requests and demonstrates that the criteria of this paragraph are met.

(8) When testing units under paragraphs (a)(5), (a)(6), or (a)(7) of this section, DOE shall perform the following number of tests:

(i) If DOE tests four or more units, it will test each unit once;

(ii) If DOE tests two or three units, it will test each unit twice; or

(iii) If DOE tests one unit, it will test that unit four times.

(9) Within five working days of the time the units are selected, the manufacturer shall ship the specified test units of the basic model to the testing laboratory.

(b) Testing laboratory. Whenever the Department conducts enforcement testing at a designated laboratory in accordance with a test notice under this section, the resulting test data shall constitute official test data for that basic model. Such test data will be used by the Department to make a determination of compliance or noncompliance.

(c) Sampling. The determination that a manufacturer's basic model complies with its labeled efficiency, or the applicable energy efficiency standard, shall be based on the testing conducted in accordance with the statistical sampling procedures set forth in Appendix B of this subpart and the test procedures specified for distribution transformers.

(d) Test unit selection. The Department shall select a batch, a batch sample, and test units from the batch sample in accordance with the following provisions of this paragraph and the conditions specified in the test notice.

(1) The batch may be subdivided by the Department utilizing criteria specified in the test notice.

(2) The Department will then randomly select a batch sample of up to 20 units from one or more subdivided groups within the batch. The manufacturer shall keep on hand all units in the batch sample until such time as the basic model is determined to be in compliance or non-compliance.

(3) The Department will randomly select individual test units comprising the test sample from the batch sample.

(4) All random selection shall be achieved by sequentially numbering all of the units in a batch sample and then using a table of random numbers to select the units to be tested.

(e) Test unit preparation. (1) Prior to and during the testing, a test unit selected in accordance with paragraph (d) of this section shall not be prepared, modified, or adjusted in any manner unless such preparation, modification, or adjustment is allowed by the applicable Department of Energy test procedure.

(2) No quality control, testing, or assembly procedures shall be performed on a test unit, or any parts and sub-assemblies thereof, that is not performed during the production and assembly of all other units included in the basic model.

(3) A test unit shall be considered defective if such unit is inoperative or is found to be in noncompliance due to failure of the unit to operate according to the manufacturer's design and operating instructions. Defective units, including those damaged due to shipping or handling, shall be reported immediately to the Department. The Department shall authorize testing of an additional unit on a case-by-case basis.

(f) Testing at manufacturer's option. (1) If a manufacturer's basic model is determined to be in noncompliance with the applicable energy performance standard at the conclusion of Department testing in accordance with the sampling plan specified in Appendix B of this subpart, the manufacturer may request that the Department conduct additional testing of the basic model according to procedures set forth in Appendix B of this subpart and the test procedures specified for distribution transformers.

(2) All units tested under this paragraph (f) shall be selected and tested in accordance with the provisions given in paragraphs (a)(9), (b), (d) and (e) of this section.

(3) The manufacturer shall bear the cost of all testing conducted under this paragraph (f).

(4) The manufacturer shall cease distribution of the basic model tested under the provisions of this paragraph from the time the manufacturer elects to exercise the option provided in this paragraph until the basic model is determined to be in compliance. The Department may seek civil penalties for all units distributed during such period.

(5) If the additional testing results in a determination of compliance, a notice of allowance to resume distribution shall be issued by the Department.

Appendix A to Subpart K of Part 431—Uniform Test Method for Measuring the Energy Consumption of Distribution Transformers
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1.0  Definitions.

The definitions contained in §§431.2 and 431.192 are applicable to this Appendix A.

2.0  Accuracy Requirements.

(a) Equipment and methods for loss measurement shall be sufficiently accurate that measurement error will be limited to the values shown in Table 2.1.

 Table 2.1_Test System Accuracy Requirements for Each Measured Quantity------------------------------------------------------------------------             Measured quantity                  Test system  accuracy------------------------------------------------------------------------Power Losses..............................  ± 3.0%Voltage...................................  ± 0.5%Current...................................  ± 0.5%Resistance................................  ± 0.5%Temperature...............................  ± 1.0 °C------------------------------------------------------------------------

(b) Only instrument transformers meeting the 0.3 metering accuracy class, or better, may be used under this test method.

3.0  Resistance Measurements

3.1  General Considerations

(a) Measure or establish the winding temperature at the time of the winding resistance measurement.

(b) Measure the direct current resistance (Rdc) of transformer windings by one of the methods outlined in section 3.3. The methods of section 3.5 must be used to correct load losses to the applicable reference temperature from the temperature at which they are measured. Observe precautions while taking measurements, such as those in section 3.4, in order to maintain measurement uncertainty limits specified in Table 2.1.

3.2  Temperature Determination of Windings and Pre-conditions for Resistance Measurement.

Make temperature measurements in protected areas where the air temperature is stable and there are no drafts. Determine the winding temperature (Tdc) for liquid-immersed and dry-type distribution transformers by the methods described in sections 3.2.1 and 3.2.2, respectively.

3.2.1  Liquid-Immersed Distribution Transformers.

3.2.1.1  Methods

Record the winding temperature (Tdc) of liquid-immersed transformers as the average of either of the following:

(a) The measurements from two temperature sensing devices (for example, thermocouples) applied to the outside of the transformer tank and thermally insulated from the surrounding environment, with one located at the level of the oil and the other located near the tank bottom or at the lower radiator header if applicable; or

(b) The measurements from two temperature sensing devices immersed in the transformer liquid, with one located directly above the winding and other located directly below the winding.

3.2.1.2  Conditions

Make this determination under either of the following conditions:

(a) The windings have been under insulating liquid with no excitation and no current in the windings for four hours before the dc resistance is measured; or

(b) The temperature of the insulating liquid has stabilized, and the difference between the top and bottom temperature does not exceed 5 °C.

3.2.2  Dry-Type Distribution Transformers.

Record the winding temperature (Tdc) of dry-type transformers as either of the following:

(a) For ventilated dry-type units, use the average of readings of four or more thermometers, thermocouples, or other suitable temperature sensors inserted within the coils. Place the sensing points of the measuring devices as close as possible to the winding conductors. For sealed units, such as epoxy-coated or epoxy-encapsulated units, use the average of four or more temperature sensors located on the enclosure and/or cover, as close to different parts of the winding assemblies as possible; or

(b) For both ventilated and sealed units, use the ambient temperature of the test area, under the following conditions:

(1) All internal temperatures measured by the internal temperature sensors must not differ from the test area ambient temperature by more than 2 °C.

(2) Enclosure surface temperatures for sealed units must not differ from the test area ambient temperature by more than 2 °C.

(3) Test area ambient temperature should not have changed by more than 3 °C for 3 hours before the test.

(4) Neither voltage nor current has been applied to the unit under test for 24 hours. In addition, increase this initial 24 hour period by any added amount of time necessary for the temperature of the transformer windings to stabilize at the level of the ambient temperature. However, this additional amount of time need not exceed 24 hours.

3.3  Resistance Measurement Methods.

Make resistance measurements using either the resistance bridge method, the voltmeter-ammeter method or a resistance meter. In each instance when this Uniform Test Method is used to test more than one unit of a basic model to determine the efficiency of that basic model, the resistance of the units being tested may be determined from making resistance measurements on only one of the units.

3.3.1  Resistance Bridge Methods.

If the resistance bridge method is selected, use either the Wheatstone or Kelvin bridge circuit (or the equivalent of either).

3.3.1.1  Wheatstone Bridge

(a) This bridge is best suited for measuring resistances larger than ten ohms. A schematic diagram of a Wheatstone bridge with a representative transformer under test is shown in Figure 3.1.

View or download PDF

Where:

Rdc is the resistance of the transformer winding being measured,

Rs is a standard resistor having the resistance Rs,

Ra, Rb are two precision resistors with resistance values Ra and Rb , respectively; at least one resistor must have a provision for resistance adjustment,

Rt is a resistor for reducing the time constant of the circuit,

D is a null detector, which may be either a micro ammeter or microvoltmeter or equivalent instrument for observing that no signal is present when the bridge is balanced, and

Vdc is a source of dc voltage for supplying the power to the Wheatstone Bridge.

(b) In the measurement process, turn on the source (Vdc), and adjust the resistance ratio (Ra/Rb) to produce zero signal at the detector (D). Determine the winding resistance by using equation 3–1 as follows:

3.3.1.2  Kelvin Bridge

(a) This bridge separates the resistance of the connecting conductors to the transformer winding being measured from the resistance of the winding, and therefore is best suited for measuring resistances of ten ohms and smaller. A schematic diagram of a Kelvin bridge with a representative transformer under test is shown in Figure 3.2.

  

View or download PDF

(b) The Kelvin Bridge has seven of the same type of components as in the Wheatstone Bridge. It has two more resistors than the Wheatstone bridge, Ra1 and Rb1. At least one of these resistors must have adjustable resistance. In the measurement process, the source is turned on, two resistance ratios (Ra/Rb) and (Ra1/Rb1) are adjusted to be equal, and then the two ratios are adjusted together to balance the bridge producing zero signal at the detector. Determine the winding resistance by using equation 3–2 as follows:

as with the Wheatstone bridge, with an additional condition that:

(c) The Kelvin bridge provides two sets of leads, current-carrying and voltage-sensing, to the transformer terminals and the standard resistor, thus eliminating voltage drops from the measurement in the current-carrying leads as represented by Rd.

3.3.2  Voltmeter-Ammeter Method.

(a) Employ the voltmeter-ammeter method only if the rated current of the winding is greater than one ampere and the test current is limited to 15 percent of the winding current. Connect the transformer winding under test to the circuit shown in Figure 3.3.

View or download PDF

Where:

A is an ammeter or a voltmeter-shunt combination for measuring the current (Imdc) in the transformer winding,

V is a voltmeter with sensitivity in the millivolt range for measuring the voltage (Vmdc) applied to the transformer winding,

Rdc is the resistance of the transformer winding being measured,

Rt is a resistor for reducing the time constant of the circuit, and

Vdc is a source of dc voltage for supplying power to the measuring circuit.

(b) To perform the measurement, turn on the source to produce current no larger than 15 percent of the rated current for the winding. Wait until the current and voltage readings have stabilized and then take simultaneous readings of voltage and current. Determine the winding resistance Rdc by using equation 3–4 as follows:

Where:

Vmdc is the voltage measured by the voltmeter V, and

Imdc is the current measured by the ammeter A.

(c) As shown in Figure 3.3, separate current and voltage leads must be brought to the transformer terminals. (This eliminates the errors due to lead and contact resistance.)

3.3.3  Resistance Meters.

Resistance meters may be based on voltmeter-ammeter, or resistance bridge, or some other operating principle. Any meter used to measure a transformer's winding resistance must have specifications for resistance range, current range, and ability to measure highly inductive resistors that cover the characteristics of the transformer being tested. Also the meter's specifications for accuracy must meet the applicable criteria of Table 2.1 in section 2.0.

3.4  Precautions in Measuring Winding Resistance.

3.4.1  Required actions.

The following guidelines must be observed when making resistance measurements:

(a) Use separate current and voltage leads when measuring small (< 10 ohms) resistance.

(b) Use null detectors in bridge circuits, and measuring instruments in voltmeter-ammeter circuits, that have sensitivity and resolution sufficient to enable observation of at least 0.1 percent change in the measured resistance.

(c) Maintain the dc test current at or below 15 percent of the rated winding current.

(d) Inclusion of a stabilizing resistor Rt (see section 3.4.2) will require higher source voltage.

(e) Disconnect the null detector (if a bridge circuit is used) and voltmeter from the circuit before the current is switched off, and switch off current by a suitable insulated switch.

3.4.2  Guideline for Time Constant.

(a) The following guideline is suggested for the tester as a means to facilitate the measurement of resistance in accordance with the accuracy requirements of section 2.0:

(b) The accurate reading of resistance Rdc may be facilitated by shortening the time constant. This is done by introducing a resistor Rt in series with the winding under test in both the bridge and voltmeter-ammeter circuits as shown in Figures 3.1 to 3.3. The relationship for the time constant is:

Where:

Tc is the time constant in seconds,

Ltc is the total magnetizing and leakage inductance of the winding under test, in henries, and

Rtc is the total resistance in ohms, consisting of Rt in series with the winding resistance Rdc and the resistance Rs of the standard resistor in the bridge circuit.

(c) Because Rtc is in the denominator of the expression for the time constant, increasing the resistance Rtc will decrease the time constant. If the time constant in a given test circuit is too long for the resistance readings to be stable, then a higher resistance can be substituted for the existing Rtc, and successive replacements can be made until adequate stability is reached.

3.5  Conversion of Resistance Measurements.

(a) Resistance measurements must be corrected, from the temperature at which the winding resistance measurements were made, to the reference temperature. As specified in these test procedures, the reference temperature for liquid-immersed transformers loaded at 50 percent of the rated load is 55 °C. For medium-voltage, dry-type transformers loaded at 50 percent of the rated load, and for low-voltage, dry-type transformers loaded at 35 percent of the rated load, the reference temperature is 75 °C.

(b) Correct the measured resistance to the resistance at the reference temperature using equation 3–6 as follows:

Where:

Rts is the resistance at the reference temperature, Ts,

Rdc is the measured resistance at temperature, Tdc,

Ts is the reference temperature in °C,

Tdc is the temperature at which resistance was measured in °C, and

Tk is 234.5 °C for copper or 225 °C for aluminum.

4.0 Loss Measurement

4.1  General Considerations.

The efficiency of a transformer is computed from the total transformer losses, which are determined from the measured value of the no-load loss and load loss power components. Each of these two power loss components is measured separately using test sets that are identical, except that shorting straps are added for the load-loss test. The measured quantities will need correction for instrumentation losses and may need corrections for known phase angle errors in measuring equipment and for the waveform distortion in the test voltage. Any power loss not measured at the applicable reference temperature must be adjusted to that reference temperature. The measured load loss must also be adjusted to a specified output loading level if not measured at the specified output loading level. Test distribution transformers designed for harmonic currents using a sinusoidal waveform (k=1).

4.2  Measurement of Power Losses.

4.2.1  No-Load Loss.

Measure the no-load loss and apply corrections as described in section 4.4, using the appropriate test set as described in section 4.3.

4.2.2  Load Loss.

Measure the load loss and apply corrections as described in section 4.5, using the appropriate test set as described in section 4.3.

4.3  Test Sets.

(a) The same test set may be used for both the no-load loss and load loss measurements provided the range of the test set encompasses the test requirements of both tests. Calibrate the test set to national standards to meet the tolerances in Table 2.1 in section 2.0. In addition, the wattmeter, current measuring system and voltage measuring system must be calibrated separately if the overall test set calibration is outside the tolerance as specified in section 2.0 or the individual phase angle error exceeds the values specified in section 4.5.3.

(b) A test set based on the wattmeter-voltmeter-ammeter principle may be used to measure the power loss and the applied voltage and current of a transformer where the transformer's test current and voltage are within the measurement capability of the measuring instruments. Current and voltage transformers, known collectively as instrument transformers, or other scaling devices such as resistive or capacitive dividers for voltage, may be used in the above circumstance, and must be used together with instruments to measure current, voltage, or power where the current or voltage of the transformer under test exceeds the measurement capability of such instruments. Thus, a test set may include a combination of measuring instruments and instrument transformers (or other scaling devices), so long as the current or voltage of the transformer under test does not exceed the measurement capability of any of the instruments.

4.3.1  Single-Phase Test Sets.

Use these for testing single-phase distribution transformers.

4.3.1.1  Without Instrument Transformers.

(a) A single-phase test set without an instrument transformer is shown in Figure 4.1.

View or download PDF

Where:

W is a wattmeter used to measure Pnm and Plm, the no-load and load loss power, respectively,

Vrms is a true root-mean-square (rms) voltmeter used to measure Vr(nm) and Vlm, the rms test voltages in no-load and load loss measurements, respectively,

Vav is an average sensing voltmeter, calibrated to indicate rms voltage for sinusoidal waveforms and used to measure Va(nm), the average voltage in no-load loss measurements,

A is an rms ammeter used to measure test current, especially Ilm, the load loss current, and

(SC) is a conductor for providing a short-circuit across the output windings for the load loss measurements.

(b) Either the primary or the secondary winding can be connected to the test set. However, more compatible voltage and current levels for the measuring instruments are available if for no-load loss measurements the secondary (low voltage) winding is connected to the test set, and for load loss measurements the primary winding is connected to the test set. Use the average-sensing voltmeter, Vav, only in no-load loss measurements.

4.3.1.2  With Instrument Transformers.

A single-phase test set with instrument transformers is shown in Figure 4.2. This circuit has the same four measuring instruments as that in Figure 4.1. The current and voltage transformers, designated as (CT) and (VT), respectively, are added.

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4.3.2  Three-Phase Test Sets.

Use these for testing three-phase distribution transformers. Use in a four-wire, three-wattmeter test circuit.

4.3.2.1  Without Instrument Transformers.

(a) A three-phase test set without instrument transformers is shown in Figure 4.3. This test set is essentially the same circuit shown in Figure 4.1 repeated three times, and the instruments are individual devices as shown. As an alternative, the entire instrumentation system of a three-phase test set without transformers may consist of a multi-function analyzer.

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(b) Either group of windings, the primary or the secondary, can be connected in wye or delta configuration. If both groups of windings are connected in the wye configuration for the no-load test, the neutral of the winding connected to the test set must be connected to the neutral of the source to provide a return path for the neutral current.

(c) In the no-load loss measurement, the voltage on the winding must be measured. Therefore a provision must be made to switch the voltmeters for line-to-neutral measurements for wye-connected windings and for line-to-line measurements for delta-connected windings.

4.3.2.2  With Instrument Transformers.

A three-phase test set with instrument transformers is shown in Figure 4.4. This test set is essentially the same circuit shown in Figure 4.2 repeated three times. Provision must be made to switch the voltmeters for line-to-neutral and line-to-line measurements as in section 4.3.2.1. The voltage sensors (“coils”) of the wattmeters must always be connected in the line-to-neutral configuration.

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4.3.2.3  Test Set Neutrals.

If the power source in the test circuit is wye-connected, ground the neutral. If the power source in the test circuit is delta-connected, use a grounding transformer to obtain neutral and ground for the test.

4.4  No-Load Losses: Measurement and Calculations.

4.4.1  General Considerations.

Measurement corrections are permitted but not required for instrumentation losses and for losses from auxiliary devices. Measurement corrections are required:

(a) When the waveform of the applied voltage is non-sinusoidal; and

(b) When the core temperature or liquid temperature is outside the 20 °C ± 10 °C range.

4.4.2  No-Load Loss Test.

(a) The purpose of the no-load loss test is to measure no-load losses at a specified excitation voltage and a specified frequency. The no-load loss determination must be based on a sine-wave voltage corrected to the reference temperature. Connect either of the transformer windings, primary or secondary, to the appropriate test set of Figures 4.1 to 4.4, giving consideration to section 4.4.2(a)(2). Leave the unconnected winding(s) open circuited. Apply the rated voltage at rated frequency, as measured by the average-sensing voltmeter, to the transformer. Take the readings of the wattmeter(s) and the average-sensing and true rms voltmeters. Observe the following precautions:

(1) Voltmeter connections. When correcting to a sine-wave basis using the average-voltmeter method, the voltmeter connections must be such that the waveform applied to the voltmeters is the same as the waveform across the energized windings.

(2) Energized windings. Energize either the high voltage or the low voltage winding of the transformer under test.

(3) Voltage and frequency. The no-load loss test must be conducted with rated voltage impressed across the transformer terminals using a voltage source at a frequency equal to the rated frequency of the transformer under test.

(b) Adjust the voltage to the specified value as indicated by the average-sensing voltmeter. Record the values of rms voltage, rms current, electrical power, and average voltage as close to simultaneously as possible. For a three-phase transformer, take all of the readings on one phase before proceeding to the next, and record the average of the three rms voltmeter readings as the rms voltage value.

Note: When the tester uses a power supply that is not synchronized with an electric utility grid, such as a dc/ac motor-generator set, check the frequency and maintain it within ±0.5 percent of the rated frequency of the transformer under test. A power source that is directly connected to, or synchronized with, an electric utility grid need not be monitored for frequency.

4.4.3  Corrections.

4.4.3.1  Correction for Instrumentation Losses.

Measured losses attributable to the voltmeters and wattmeter voltage circuit, and to voltage transformers if they are used, may be deducted from the total no-load losses measured during testing.

4.4.3.2  Correction for Non-Sinusoidal Applied Voltage.

(a) The measured value of no-load loss must be corrected to a sinusoidal voltage, except when waveform distortion in the test voltage causes the magnitude of the correction to be less than 1 percent. In such a case, no correction is required.

(b) To make a correction where the distortion requires a correction of 5 percent or less, use equation 4–1. If the distortion requires a correction to be greater than 5 percent, improve the test voltage and re-test. Repeat until the distortion requires a correction of 5 percent or less.

(c) Determine the no-load losses of the transformer corrected for sine-wave basis from the measured value by using equation 4–1 as follows:

Where:

Pncl is the no-load loss corrected to a sine-wave basis at the temperature (Tnm) at which no-load loss is measured,

Pnm is the measured no-load loss at temperature Tnm,

P1 is the per unit hysteresis loss,

P2 is the per unit eddy-current loss,

P1 + P2 = 1,

Vr(nm) is the test voltage measured by rms voltmeter, and

Va(nm) is the test voltage measured by average-voltage voltmeter.

(d) The two loss components (P1 and P2) are assumed equal in value, each assigned a value of 0.5 per unit, unless the actual measurement-based values of hysteresis and eddy-current losses are available (in per unit form), in which case the actual measurements apply.

4.4.3.3  Correction of No-Load Loss to Reference Temperature.

After correcting the measured no-load loss for waveform distortion, correct the loss to the reference temperature of 20 °C. If the no-load loss measurements were made between 10 °C and 30 °C, this correction is not required. If the correction to reference temperature is applied, then the core temperature of the transformer during no-load loss measurement (Tnm) must be determined within ± 10 °C of the true average core temperature. Correct the no-load loss to the reference temperature by using equation 4–2 as follows:

Where:

Pnc is the no-load losses corrected for waveform distortion and then to the reference temperature of 20 °C,

Pnc1 is the no-load losses, corrected for waveform distortion, at temperature Tnm,

Tnm is the core temperature during the measurement of no-load losses, and

Tnr is the reference temperature, 20 °C.

4.5  Load Losses: Measurement and Calculations.

4.5.1  General Considerations.

(a) The load losses of a transformer are those losses incident to a specified load carried by the transformer. Load losses consist of ohmic loss in the windings due to the load current and stray losses due to the eddy currents induced by the leakage flux in the windings, core clamps, magnetic shields, tank walls, and other conducting parts. The ohmic loss of a transformer varies directly with temperature, whereas the stray losses vary inversely with temperature.

(b) For a transformer with a tap changer, conduct the test at the rated current and rated-voltage tap position. For a transformer that has a configuration of windings which allows for more than one nominal rated voltage, determine its load losses either in the winding configuration in which the highest losses occur or in each winding configuration in which the transformer can operate.

4.5.2  Tests for Measuring Load Losses.

(a) Connect the transformer with either the high-voltage or low-voltage windings to the appropriate test set. Then short-circuit the winding that was not connected to the test set. Apply a voltage at the rated frequency (of the transformer under test) to the connected windings to produce the rated current in the transformer. Take the readings of the wattmeter(s), the ammeters(s), and rms voltmeter(s).

(b) Regardless of the test set selected, the following preparatory requirements must be satisfied for accurate test results:

(1) Determine the temperature of the windings using the applicable method in section 3.2.1 or section 3.2.2.

(2) The conductors used to short-circuit the windings must have a cross-sectional area equal to, or greater than, the corresponding transformer leads, or, if the tester uses a different method to short-circuit the windings, the losses in the short-circuiting conductor assembly must be less than 10 percent of the transformer's load losses.

(3) When the tester uses a power supply that is not synchronized with an electric utility grid, such as a dc/ac motor-generator set, follow the provisions of the “Note” in section 4.4.2.

4.5.3  Corrections.

4.5.3.1  Correction for Losses from Instrumentation and Auxiliary Devices.

4.5.3.1.1  Instrumentation Losses.

Measured losses attributable to the voltmeters, wattmeter voltage circuit and short-circuiting conductor (SC), and to the voltage transformers if they are used, may be deducted from the total load losses measured during testing.

4.5.3.1.2  Losses from Auxiliary Devices.

Measured losses attributable to auxiliary devices (e.g., circuit breakers, fuses, switches) installed in the transformer, if any, that are not part of the winding and core assembly, may be excluded from load losses measured during testing. To exclude these losses, either (1) measure transformer losses without the auxiliary devices by removing or by-passing them, or (2) measure transformer losses with the auxiliary devices connected, determine the losses associated with the auxiliary devices, and deduct these losses from the load losses measured during testing.

4.5.3.2  Correction for Phase Angle Errors.

(a) Corrections for phase angle errors are not required if the instrumentation is calibrated over the entire range of power factors and phase angle errors. Otherwise, determine whether to correct for phase angle errors from the magnitude of the normalized per unit correction, βn, obtained by using equation 4–3 as follows:

(b) The correction must be applied if βn is outside the limits of ±0.01. If βn is within the limits of ±0.01, the correction is permitted but not required.

(c) If the correction for phase angle errors is to be applied, first examine the total system phase angle (βw − βv + βc). Where the total system phase angle is equal to or less than ±12 milliradians (±41 minutes), use either equation 4–4 or 4–5 to correct the measured load loss power for phase angle errors, and where the total system phase angle exceeds ±12 milliradians (±41 minutes) use equation 4–5, as follows:

(d) The symbols in this section (4.5.3.2) have the following meanings:

Plc1 is the corrected wattmeter reading for phase angle errors,

Plm is the actual wattmeter reading,

Vlm is the measured voltage at the transformer winding,

Ilm is the measured rms current in the transformer winding,

is the measured phase angle between Vlm and Ilm,

βw is the phase angle error (in radians) of the wattmeter; the error is positive if the phase angle between the voltage and current phasors as sensed by the wattmeter is smaller than the true phase angle, thus effectively increasing the measured power,

βv is the phase angle error (in radians) of the voltage transformer; the error is positive if the secondary voltage leads the primary voltage, and

βc is the phase angle error (in radians) of the current transformer; the error is positive if the secondary current leads the primary current.

(e) The instrumentation phase angle errors used in the correction equations must be specific for the test conditions involved.

4.5.3.3  Temperature Correction of Load Loss.

(a) When the measurement of load loss is made at a temperature Tlm that is different from the reference temperature, use the procedure summarized in the equations 4–6 to 4–10 to correct the measured load loss to the reference temperature. The symbols used in these equations are defined at the end of this section.

(b) Calculate the ohmic loss (Pe) by using equation 4–6 as follows:

(c) Obtain the stray loss by subtracting the calculated ohmic loss from the measured load loss, by using equation 4–7 as follows:

(d) Correct the ohmic and stray losses to the reference temperature for the load loss by using equations 4–8 and 4–9, respectively, as follows:

(e) Add the ohmic and stray losses, corrected to the reference temperature, to give the load loss, Plc2, at the reference temperature, by using equation 4–10 as follows:

(f) The symbols in this section (4.5.3.3) have the following meanings:

Ilm(p) is the primary current in amperes,

Ilm(s) is the secondary current in amperes,

Pe is the ohmic loss in the transformer in watts at the temperature Tlm,

Pe(p) is the ohmic loss in watts in the primary winding at the temperature Tlm,

Pe(s) is the ohmic loss in watts in the secondary winding at the temperature Tlm,

Per is the ohmic loss in watts corrected to the reference temperature,

Plc1 is the measured load loss in watts, corrected for phase angle error, at the temperature Tlm,

Plc2 is the load loss at the reference temperature,

Ps is the stray loss in watts at the temperature Tlm,

Psr is the stray loss in watts corrected to the reference temperature,

Rdc(p) is the measured dc primary winding resistance in ohms,

Rdc(s) is the measured dc secondary winding resistance in ohms,

Tk is the critical temperature in degrees Celsius for the material of the transformer windings. Where copper is used in both primary and secondary windings, Tk is 234.5 °C; where aluminum is used in both primary and secondary windings, Tk is 225 °C; where both copper and aluminum are used in the same transformer, the value of 229 °C is used for Tk,

Tk(p) is the critical temperature in degrees Celsius for the material of the primary winding: 234.5 °C if copper and 225 °C if aluminum,

Tk(s) is the critical temperature in degrees Celsius for the material of the secondary winding: 234.5 °C if copper and 225 °C if aluminum,

Tlm is the temperature in degrees Celsius at which the load loss is measured,

Tlr is the reference temperature for the load loss in degrees Celsius,

Tdc is the temperature in degrees Celsius at which the resistance values are measured, and

N1/N2 is the ratio of the number of turns in the primary winding (N1) to the number of turns in the secondary winding (N2); for a primary winding with taps, N1 is the number of turns used when the voltage applied to the primary winding is the rated primary voltage.

5.0  Determining the Efficiency Value of the Transformer

This section presents the equations to use in determining the efficiency value of the transformer at the required reference conditions and at the specified loading level. The details of measurements are described in sections 3.0 and 4.0. For a transformer that has a configuration of windings which allows for more than one nominal rated voltage, determine its efficiency either at the voltage at which the highest losses occur or at each voltage at which the transformer is rated to operate.

5.1  Output Loading Level Adjustment.

If the output loading level for energy efficiency is different from the level at which the load loss power measurements were made, then adjust the corrected load loss power, Plc2, by using equation 5–1 as follows:

Where:

Plc is the adjusted load loss power to the specified energy efficiency load level,

Plc2 is as calculated in section 4.5.3.3,

Por is the rated transformer apparent power (name plate),

Pos is the specified energy efficiency load level, where , and Pos = PorL2 , and

L is the per unit load level, e.g., if the load level is 50 percent then “L” will be 0.5.

5.2  Total Loss Power Calculation.

Calculate the corrected total loss power by using equation 5–2 as follows:

Where:

Pts is the corrected total loss power adjusted for the transformer output loading specified by the standard,

Pnc is as calculated in section 4.4.3.3, and

Plc is as calculated in section 5.1.

5.3  Energy Efficiency Calculation.

Calculate efficiency (η) in percent at specified energy efficiency load level, Pos, by using equation 5–3 as follows:

Where:

Pos is as described and calculated in section 5.1, and

Pts is as described and calculated in section 5.2.

5.4  Significant Figures in Power Loss and Efficiency Data.

In measured and calculated data, retain enough significant figures to provide at least 1 percent resolution in power loss data and 0.01 percent resolution in efficiency data.

6.0  Test Equipment Calibration and Certification

Maintain and calibrate test equipment and measuring instruments, maintain calibration records, and perform other test and measurement quality assurance procedures according to the following sections. The calibration of the test set must confirm the accuracy of the test set to that specified in section 2.0, Table 2.1.

6.1  Test Equipment.

The party performing the tests shall control, calibrate and maintain measuring and test equipment, whether or not it owns the equipment, has the equipment on loan, or the equipment is provided by another party. Equipment shall be used in a manner which assures that measurement uncertainty is known and is consistent with the required measurement capability.

6.2  Calibration and Certification.

The party performing the tests must:

(a) Identify the measurements to be made, the accuracy required (section 2.0) and select the appropriate measurement and test equipment;

(b) At prescribed intervals, or prior to use, identify, check and calibrate, if needed, all measuring and test equipment systems or devices that affect test accuracy, against certified equipment having a known valid relationship to nationally recognized standards; where no such standards exist, the basis used for calibration must be documented;

(c) Establish, document and maintain calibration procedures, including details of equipment type, identification number, location, frequency of checks, check method, acceptance criteria and action to be taken when results are unsatisfactory;

(d) Ensure that the measuring and test equipment is capable of the accuracy and precision necessary, taking into account the voltage, current and power factor of the transformer under test;

(e) Identify measuring and test equipment with a suitable indicator or approved identification record to show the calibration status;

(f) Maintain calibration records for measuring and test equipment;

(g) Assess and document the validity of previous test results when measuring and test equipment is found to be out of calibration;

(h) Ensure that the environmental conditions are suitable for the calibrations, measurements and tests being carried out;

(i) Ensure that the handling, preservation and storage of measuring and test equipment is such that the accuracy and fitness for use is maintained; and

(j) Safeguard measuring and test facilities, including both test hardware and test software, from adjustments which would invalidate the calibration setting.

[71 FR 24999, Apr. 27, 2006]

Effective Date Note:  At 71 FR 24999, Apr. 27, 2006, appendix A to subpart K of part 431 was added, effective May 30, 2006, except for section 6.2(f) and section 6.2 (b) and (c) which contain information collection requirements and will not become effective until approval has been given by the Office of Management and Budget.

Appendix B to Subpart K of Part 431—Sampling Plan for Enforcement Testing
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Step 1. The number of units in the sample (m1) shall be in accordance with §§431.198(a)(4), 431.198(a)(5), 431.198(a)(6) and 431.198(a)(7) and shall not be greater than twenty. The number of tests in the first sample (n1) shall be in accordance with §431.198(a)(8) and shall be not fewer than four.

Step 2. Compute the mean (X i) of the measured energy performance of the n1 tests in the first sample by using equation 1 as follows:

where Xi is the measured efficiency of test i.

Step 3. Compute the sample standard deviation (S1) of the measured efficiency of the n1 tests in the first sample by using equation 2 as follows:

Step 4. Compute the standard error (SE(X 1)) of the mean efficiency of the first sample by using equation 3 as follows:

Step 5. Compute the sample size discount (SSD(m1)) by using equation 4 as follows:

where m1 is the number of units in the sample, and RE is the applicable EPCA efficiency when the test is to determine compliance with the applicable statutory standard, or is the labeled efficiency when the test is to determine compliance with the labeled efficiency value.

Step 6. Compute the lower control limit (LCL1) for the mean of the first sample by using equation 5 as follows:

where t is the 2.5th percentile of a t-distribution for a sample size of n1, which yields a 97.5 percent confidence level for a one-tailed t-test.

Step 7. Compare the mean of the first sample (X 1) with the lower control limit (LCL1) to determine one of the following:

(i) If the mean of the first sample is below the lower control limit, then the basic model is in non-compliance and testing is at an end.

(ii) If the mean is equal to or greater than the lower control limit, no final determination of compliance or non-compliance can be made; proceed to Step 8.

Step 8. Determine the recommended sample size (n) by using equation 6 as follows:

where S1 and t have the values used in Steps 3 and 6, respectively. The factor

is based on an 8-percent tolerance in the total power loss.

Given the value of n, determine one of the following:

(i) If the value of n is less than or equal to n1 and if the mean energy efficiency of the first sample (X 1) is equal to or greater than the lower control limit (LCL1), the basic model is in compliance and testing is at an end.

(ii) If the value of n is greater than n1, and no additional units are available for testing, testing is at an end and the basic model is in non-compliance. If the value of n is greater than n1, and additional units are available for testing, select a second sample n2. The size of the n2 sample is determined to be the smallest integer equal to or greater than the difference n–n1. If the value of n2 so calculated is greater than 20–n1, set n2 equal to 20–n1.

Step 9. After testing the n2 sample, compute the combined mean (X 2) of the measured energy performance of the n1 and n2 tests of the combined first and second samples by using equation 7 as follows:

Step 10. Compute the standard error (SE(X 2)) of the mean efficiency of the n1 and n2 tests in the combined first and second samples by using equation 8 as follows:

(Note that S1 is the value obtained above in Step 3.)

Step 11. Set the lower control limit (LCL2) to,

where t has the value obtained in Step 5 and SSD(m1) is sample size discount from Step 5. Compare the combined sample mean (X 2) to the lower control limit (LCL2) to find one of the following:

(i) If the mean of the combined sample (X 2) is less than the lower control limit (LCL2), the basic model is in non-compliance and testing is at an end.

(ii) If the mean of the combined sample (X 2) is equal to or greater than the lower control limit (LCL2), the basic model is in compliance and testing is at an end.

Manufacturer-Option Testing

If a determination of non-compliance is made in Steps 6, 7 or 11, above, the manufacturer may request that additional testing be conducted, in accordance with the following procedures.

Step A. The manufacturer requests that an additional number, n3, of units be tested, with n3 chosen such that n1+n2+n3 does not exceed 20.

Step B. Compute the mean efficiency, standard error, and lower control limit of the new combined sample in accordance with the procedures prescribed in Steps 8, 9, and 10, above.

Step C. Compare the mean performance of the new combined sample to the lower control limit (LCL2) to determine one of the following:

(a) If the new combined sample mean is equal to or greater than the lower control limit, the basic model is in compliance and testing is at an end.

(b) If the new combined sample mean is less than the lower control limit and the value of n1+n2+n3 is less than 20, the manufacturer may request that additional units be tested. The total of all units tested may not exceed 20. Steps A, B, and C are then repeated.

(c) Otherwise, the basic model is determined to be in non-compliance.

[71 FR 24999, Apr. 27, 2006]

Subpart L—Illuminated Exit Signs
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Source:  70 FR 60417, Oct. 18, 2005, unless otherwise noted.

§ 431.201   Purpose and scope.
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This subpart contains energy conservation requirements for illuminated exit signs, pursuant to Part B of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6291–6309.

§ 431.202   Definitions concerning illuminated exit signs.
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Illuminated exit sign means a sign that—

(1) Is designed to be permanently fixed in place to identify an exit; and

(2) Consists of an electrically powered integral light source that—

(i) Illuminates the legend “EXIT” and any directional indicators; and

(ii) Provides contrast between the legend, any directional indicators, and the background.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.206   Energy conservation standards and their effective dates.
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An illuminated exit sign manufactured on or after January 1, 2006, shall have an input power demand of 5 watts or less per face.

Subpart M—Traffic Signal Modules and Pedestrian Modules
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Source:  70 FR 60417, Oct. 18, 2005, unless otherwise noted.

§ 431.221   Purpose and scope.
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This subpart contains energy conservation requirements for traffic signal modules and pedestrian modules, pursuant to Part B of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6291–6309.

§ 431.222   Definitions concerning traffic signal modules and pedestrian modules.
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Pedestrian module means a light signal used to convey movement information to pedestrians.

Traffic signal module means a standard 8-inch (200 mm) or 12-inch (300 mm) traffic signal indication that—

(1) Consists of a light source, a lens, and all other parts necessary for operation; and

(2) Communicates movement messages to drivers through red, amber, and green colors.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.226   Energy conservation standards and their effective dates.
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Any traffic signal module or pedestrian module manufactured on or after January 1, 2006, shall meet both of the following requirements:

(a) Have a nominal wattage no greater than:

 ------------------------------------------------------------------------                                              Maximum         Nominal                                           wattage  (at    wattage  (at                                            74 °C)      25 °C)------------------------------------------------------------------------Traffic Signal Module Type:    12[inch] Red Ball...................              17              11    8[inch] Red Ball....................              13               8    12[inch] Red Arrow..................              12               9    12[inch] Green Ball.................              15              15    8[inch] Green Ball..................              12              12    12[inch] Green Arrow................              11              11Pedestrian Module Type:    Combination Walking Man/Hand........              16              13    Walking Man.........................              12               9    Orange Hand.........................              16              13------------------------------------------------------------------------

(b) Be installed with compatible, electrically connected signal control interface devices and conflict monitoring systems.

Subpart N—Unit Heaters
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Source:  70 FR 60418, Oct. 18, 2005, unless otherwise noted.

§ 431.241   Purpose and scope.
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This subpart contains energy conservation requirements for unit heaters, pursuant to Part B of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6291–6309.

§ 431.242   Definitions concerning unit heaters.
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Unit heater means a self-contained fan-type heater designed to be installed within the heated space; however, the term does not include a warm air furnace.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.246   Energy conservation standards and their effective dates.
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A unit heater manufactured on or after August 8, 2008, shall:

(a) Be equipped with an intermittent ignition device; and

(b) Have power venting or an automatic flue damper.

Subpart O—Commercial Prerinse Spray Valves
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Source:  70 FR 60418, Oct. 18, 2005, unless otherwise noted.

§ 431.261   Purpose and scope.
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This subpart contains energy conservation requirements for commercial prerinse spray valves, pursuant to section 135 of the Energy Policy Act of 2005, Pub. L. 109–58.

§ 431.262   Definitions concerning commercial prerinse spray valves.
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Commercial prerinse spray valve means a handheld device designed and marketed for use with commercial dishwashing and ware washing equipment that sprays water on dishes, flatware, and other food service items for the purpose of removing food residue before cleaning the items.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.266   Energy conservation standards and their effective dates.
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Commercial prerinse spray valves manufactured on or after January 1, 2006, shall have a flow rate of not more than 1.6 gallons per minute.

Subpart P—Mercury Vapor Lamp Ballasts
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Source:  70 FR 60418, Oct. 18, 2005, unless otherwise noted.

§ 431.281   Purpose and scope.
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This subpart contains energy conservation requirements for mercury vapor lamp ballasts, pursuant to section 135 of the Energy Policy Act of 2005, Pub. L. 109–58.

§ 431.282   Definitions concerning mercury vapor lamp ballasts.
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High intensity discharge lamp means an electric-discharge lamp in which—

(1) The light-producing arc is stabilized by bulb wall temperature; and

(2) The arc tube has a bulb wall loading in excess of 3 Watts/cm2 , including such lamps that are mercury vapor, metal halide, and high-pressure sodium lamps.

Mercury vapor lamp means a high intensity discharge lamp in which the major portion of the light is produced by radiation from mercury operating at a partial pressure in excess of 100,000 PA (approximately 1 atm), including such lamps that are clear, phosphor-coated, and self-ballasted.

Mercury vapor lamp ballast means a device that is designed and marketed to start and operate mercury vapor lamps by providing the necessary voltage and current.

Test Procedures [Reserved]
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Energy Conservation Standards
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§ 431.286   Energy conservation standards and their effective dates.
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Mercury vapor lamp ballasts shall not be manufactured or imported after January 1, 2008.

Subparts Q–T [Reserved]
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Subpart U—Enforcement
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Source:  69 FR 61941, Oct. 21, 2004, unless otherwise noted. Redesignated at 70 FR 60416, Oct. 18, 2005.

§ 431.381   Purpose and scope.
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This subpart describes violations of EPCA's energy conservation requirements, specific procedures we will follow in pursuing alleged non-compliance of an electric motor with an applicable energy conservation standard or labeling requirement, and general procedures for enforcement action, largely drawn directly from EPCA, that apply to both electric motors and commercial HVAC & WH products.

§ 431.382   Prohibited acts.
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(a) Each of the following is a prohibited act under sections 332 and 345 of the Act:

(1) Distribution in commerce by a manufacturer or private labeler of any “new covered equipment” which is not labeled in accordance with an applicable labeling rule prescribed in accordance with Section 344 of the Act, and in this part;

(2) Removal from any “new covered equipment” or rendering illegible, by a manufacturer, distributor, retailer, or private labeler, of any label required under this Part to be provided with such covered equipment;

(3) Failure to permit access to, or copying of records required to be supplied under the Act and this part, or failure to make reports or provide other information required to be supplied under the Act and this part;

(4) Advertisement of an electric motor or motors, by a manufacturer, distributor, retailer, or private labeler, in a catalog from which the equipment may be purchased, without including in the catalog all information as required by §431.31(b)(1), provided, however, that this shall not apply to an advertisement of an electric motor in a catalog if distribution of the catalog began before the effective date of the labeling rule applicable to that motor;

(5) Failure of a manufacturer to supply at his expense a reasonable number of units of covered equipment to a test laboratory designated by the Secretary;

(6) Failure of a manufacturer to permit a representative designated by the Secretary to observe any testing required by the Act and this part, and to inspect the results of such testing; and

(7) Distribution in commerce by a manufacturer or private labeler of any new covered equipment which is not in compliance with an applicable energy efficiency standard prescribed under the Act and this part.

(b) In accordance with sections 333 and 345 of the Act, any person who knowingly violates any provision of paragraph (a) of this section may be subject to assessment of a civil penalty of no more than $110 for each violation. Each violation of paragraphs (a)(1), (2), and (7) of this section shall constitute a separate violation with respect to each unit of any covered equipment, and each day of noncompliance with paragraphs (a)(3) through (6) of this section shall constitute a separate violation.

(c) For purposes of this section:

(1) The term “new covered equipment” means covered equipment the title of which has not passed to a purchaser who buys such product for purposes other than:

(i) Reselling it; or

(ii) Leasing it for a period in excess of one year; and

(2) The term “knowingly” means:

(i) Having actual knowledge; or

(ii) Presumed to have knowledge deemed to be possessed by a reasonable person who acts in the circumstances, including knowledge obtainable upon the exercise of due care.

§ 431.383   Enforcement process for electric motors.
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(a) Test notice. Upon receiving information in writing, concerning the energy performance of a particular electric motor sold by a particular manufacturer or private labeler, which indicates that the electric motor may not be in compliance with the applicable energy efficiency standard, or upon undertaking to ascertain the accuracy of the efficiency rating on the nameplate or in marketing materials for an electric motor, disclosed pursuant to subpart B of this part, the Secretary may conduct testing of that electric motor under this subpart by means of a test notice addressed to the manufacturer in accordance with the following requirements:

(1) The test notice procedure will only be followed after the Secretary or his/her designated representative has examined the underlying test data (or, where appropriate, data as to use of an alternative efficiency determination method) provided by the manufacturer and after the manufacturer has been offered the opportunity to meet with the Department to verify, as applicable, compliance with the applicable efficiency standard, or the accuracy of labeling information, or both. In addition, where compliance of a basic model was certified based on an AEDM, the Department shall have the discretion to pursue the provisions of §431.17(a)(4)(iii) prior to invoking the test notice procedure. A representative designated by the Secretary shall be permitted to observe any re-verification procedures undertaken pursuant to this subpart, and to inspect the results of such reverification.

(2) The test notice will be signed by the Secretary or his/her designee. The test notice will be mailed or delivered by the Department to the plant manager or other responsible official, as designated by the manufacturer.

(3) The test notice will specify the model or basic model to be selected for testing, the method of selecting the test sample, the date and time at which testing shall be initiated, the date by which testing is scheduled to be completed and the facility at which testing will be conducted. The test notice may also provide for situations in which the specified basic model is unavailable for testing, and may include alternative basic models.

(4) The Secretary may require in the test notice that the manufacturer of an electric motor shall ship at his expense a reasonable number of units of a basic model specified in such test notice to a testing laboratory designated by the Secretary. The number of units of a basic model specified in a test notice shall not exceed 20.

(5) Within five working days of the time the units are selected, the manufacturer shall ship the specified test units of a basic model to the testing laboratory.

(b) Testing laboratory. Whenever the Department conducts enforcement testing at a designated laboratory in accordance with a test notice under this section, the resulting test data shall constitute official test data for that basic model. Such test data will be used by the Department to make a determination of compliance or noncompliance if a sufficient number of tests have been conducted to satisfy the requirements of appendix A of this subpart.

(c) Sampling. The determination that a manufacturer's basic model complies with its labeled efficiency, or the applicable energy efficiency standard, shall be based on the testing conducted in accordance with the statistical sampling procedures set forth in appendix A of this subpart and the test procedures set forth in appendix B to subpart B of this part.

(d) Test unit selection. A Department inspector shall select a batch, a batch sample, and test units from the batch sample in accordance with the provisions of this paragraph and the conditions specified in the test notice.

(1) The batch may be subdivided by the Department utilizing criteria specified in the test notice.

(2) A batch sample of up to 20 units will then be randomly selected from one or more subdivided groups within the batch. The manufacturer shall keep on hand all units in the batch sample until such time as the basic model is determined to be in compliance or non-compliance.

(3) Individual test units comprising the test sample shall be randomly selected from the batch sample.

(4) All random selection shall be achieved by sequentially numbering all of the units in a batch sample and then using a table of random numbers to select the units to be tested.

(e) Test unit preparation. (1) Prior to and during the testing, a test unit selected in accordance with paragraph (d) of this section shall not be prepared, modified, or adjusted in any manner unless such preparation, modification, or adjustment is allowed by the applicable Department of Energy test procedure. One test shall be conducted for each test unit in accordance with the applicable test procedures prescribed in appendix B to subpart B of this part.

(2) No quality control, testing, or assembly procedures shall be performed on a test unit, or any parts and sub-assemblies thereof, that is not performed during the production and assembly of all other units included in the basic model.

(3) A test unit shall be considered defective if such unit is inoperative or is found to be in noncompliance due to failure of the unit to operate according to the manufacturer's design and operating instructions. Defective units, including those damaged due to shipping or handling, shall be reported immediately to the Department. The Department shall authorize testing of an additional unit on a case-by-case basis.

(f) Testing at manufacturer's option. (1) If a manufacturer's basic model is determined to be in noncompliance with the applicable energy performance standard at the conclusion of Department testing in accordance with the sampling plan specified in appendix A of this subpart, the manufacturer may request that the Department conduct additional testing of the basic model according to procedures set forth in appendix A of this subpart.

(2) All units tested under this paragraph shall be selected and tested in accordance with the provisions given in paragraphs (a) through (e) of this section.

(3) The manufacturer shall bear the cost of all testing conducted under this paragraph.

(4) The manufacturer shall cease distribution of the basic model tested under the provisions of this paragraph from the time the manufacturer elects to exercise the option provided in this paragraph until the basic model is determined to be in compliance. The Department may seek civil penalties for all units distributed during such period.

(5) If the additional testing results in a determination of compliance, a notice of allowance to resume distribution shall be issued by the Department.

§ 431.384   [Reserved]
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§ 431.385   Cessation of distribution of a basic model of an electric motor.
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(a) In the event that a model of an electric motor is determined non-compliant by the Department in accordance with §431.192 or if a manufacturer or private labeler determines a model of an electric motor to be in noncompliance, then the manufacturer or private labeler shall:

(1) Immediately cease distribution in commerce of the basic model.

(2) Give immediate written notification of the determination of noncompliance, to all persons to whom the manufacturer has distributed units of the basic model manufactured since the date of the last determination of compliance.

(3) Pursuant to a request made by the Secretary, provide the Department within 30 days of the request, records, reports, and other documentation pertaining to the acquisition, ordering, storage, shipment, or sale of a basic model determined to be in noncompliance.

(4) The manufacturer may modify the non-compliant basic model in such manner as to make it comply with the applicable performance standard. Such modified basic model shall then be treated as a new basic model and must be certified in accordance with the provisions of this subpart; except that in addition to satisfying all requirements of this subpart, the manufacturer shall also maintain records that demonstrate that modifications have been made to all units of the new basic model prior to distribution in commerce.

(b) If a basic model is not properly certified in accordance with the requirements of this subpart, the Secretary may seek, among other remedies, injunctive action to prohibit distribution in commerce of such basic model.

§ 431.386   Remedies.
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If the Secretary determines that a basic model of any covered equipment does not comply with an applicable energy conservation standard:

(a) The Secretary will notify the manufacturer, private labeler, or any other person as required, of this finding and of the Secretary's intent to seek a judicial order restraining further distribution in commerce of units of such a basic model unless the manufacturer, private labeler or other person as required, delivers, within 15 calendar days, a satisfactory statement to the Secretary, of the steps the manufacturer, private labeler or other person will take to insure that the noncompliant basic model will no longer be distributed in commerce. The Secretary will monitor the implementation of such statement.

(b) If the manufacturer, private labeler or any other person as required, fails to stop distribution of the noncompliant basic model, the Secretary may seek to restrain such violation in accordance with sections 334 and 345 of the Act.

(c) The Secretary will determine whether the facts of the case warrant the assessment of civil penalties for knowing violations in accordance with sections 333 and 345 of the Act.

§ 431.387   Hearings and appeals.
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(a) Under sections 333(d) and 345 of the Act, before issuing an order assessing a civil penalty against any person, the Secretary must provide to such a person a notice of the proposed penalty. Such notice must inform the person that such person can choose (in writing within 30 days after receipt of the notice) to have the procedures of paragraph (c) of this section (in lieu of those in paragraph (b) of this section) apply with respect to such assessment.

(b)(1) Unless a person elects, within 30 calendar days after receipt of a notice under paragraph (a) of this section, to have paragraph (c) of this section apply with respect to the civil penalty under paragraph (a), the Secretary will assess the penalty, by order, after providing an opportunity for an agency hearing under 5 U.S.C. 554, before an administrative law judge appointed under 5 U.S.C. 3105, and making a determination of violation on the record. Such assessment order will include the administrative law judge's findings and the basis for such assessment.

(2) Any person against whom the Secretary assesses a penalty under this paragraph may, within 60 calendar days after the date of the order assessing such penalty, initiate action in the United States Court of Appeals for the appropriate judicial circuit for judicial review of such order in accordance with 5 U.S.C. chapter 7. The court will have jurisdiction to enter a judgment affirming, modifying, or setting aside in whole or in part, the order of the Secretary, or the court may remand the proceeding to the Secretary for such further action as the court may direct.

(c)(1) In the case of any civil penalty with respect to which the procedures of this paragraph have been elected, the Secretary will promptly assess such penalty, by order, after the date of the receipt of the notice under paragraph (a) of this section of the proposed penalty.

(2) If the person has not paid the civil penalty within 60 calendar days after the assessment has been made under paragraph (c)(1) of this section, the Secretary will institute an action in the appropriate District Court of the United States for an order affirming the assessment of the civil penalty. The court will have authority to review de novo the law and the facts involved and jurisdiction to enter a judgment enforcing, modifying, and enforcing as so modified, or setting aside in whole or in part, such assessment.

(3) Any election to have this paragraph apply can only be revoked with the consent of the Secretary.

(d) If any person fails to pay an assessment of a civil penalty after it has become a final and unappealable order under paragraph (b) of this section, or after the appropriate District Court has entered final judgment in favor of the Secretary under paragraph (c) of this section, the Secretary will institute an action to recover the amount of such penalty in any appropriate District Court of the United States. In such action, the validity and appropriateness of such final assessment order or judgment will not be subject to review.

(e)(1) In accordance with the provisions of sections 333(d)(5)(A) and 345 of the Act and notwithstanding the provisions of title 28, United States Code, or Section 502(c) of the Department of Energy Organization Act, the General Counsel of the Department of Energy (or any attorney or attorneys within DOE designated by the Secretary) will represent the Secretary, and will supervise, conduct, and argue any civil litigation to which paragraph (c) of this section applies (including any related collection action under paragraph (d) of this section) in a court of the United States or in any other court, except the Supreme Court of the United States. However, the Secretary or the General Counsel will consult with the Attorney General concerning such litigation and the Attorney General will provide, on request, such assistance in the conduct of such litigation as may be appropriate.

(2) In accordance with the provisions of sections 333(d)(5)(B) and 345 of the Act, and subject to the provisions of Section 502(c) of the Department of Energy Organization Act, the Secretary will be represented by the Attorney General, or the Solicitor General, as appropriate, in actions under this section, except to the extent provided in paragraph (e)(1) of this section.

(3) In accordance with the provisions of Section 333(d)(5)(c) and 345 of the Act, Section 402(d) of the Department of Energy Organization Act will not apply with respect to the function of the Secretary under this section.

Appendix A to Subpart U of Part 431—Sampling Plan for Enforcement Testing of Electric Motors
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Step 1. The first sample size (n1) must be five or more units.

Step 2. Compute the mean (X 1 of the measured energy performance of the n1 units in the first sample as follows:

where Xi is the measured full-load efficiency of unit i.

Step 3. Compute the sample standard deviation (S1) of the measured full-load efficiency of the n1 units in the first sample as follows:

Step 4. Compute the standard error (SE(X 1)) of the mean full-load efficiency of the first sample as follows:

Step 5. Compute the lower control limit (LCL1) for the mean of the first sample using RE as the desired mean as follows:

where: RE is the applicable EPCA nominal full-load efficiency when the test is to determine compliance with the applicable statutory standard, or is the labeled nominal full-load efficiency when the test is to determine compliance with the labeled efficiency value, and t is the 2.5th percentile of a t-distribution for a sample size of n1, which yields a 97.5 percent confidence level for a one-tailed t-test.

Step 6. Compare the mean of the first sample (X 1) with the lower control limit (LCL1) to determine one of the following:

(i) If the mean of the first sample is below the lower control limit, then the basic model is in non-compliance and testing is at an end.

(ii) If the mean is equal to or greater than the lower control limit, no final determination of compliance or non-compliance can be made; proceed to Step 7.

Step 7. Determine the recommended sample size (n) as follows:

where S1, RE and t have the values used in Steps 3 and 5, respectively. The factor

is based on a 20 percent tolerance in the total power loss at full-load and fixed output power.

Given the value of n, determine one of the following:

(i) If the value of n is less than or equal to n1 and if the mean energy efficiency of the first sample (X 1) is equal to or greater than the lower control limit (LCL1), the basic model is in compliance and testing is at an end.

(ii) If the value of n is greater than n1, the basic model is in non-compliance. The size of a second sample n2 is determined to be the smallest integer equal to or greater than the difference n−n1. If the value of n2 so calculated is greater than 20−n1, set n2 equal to 20−n1.

Step 8. Compute the combined (X 2) mean of the measured energy performance of the n1 and n2 units of the combined first and second samples as follows:

Step 9. Compute the standard error (SE(X 2)) of the mean full-load efficiency of the n1 and n2 units in the combined first and second samples as follows:

(Note that S1 is the value obtained above in Step 3.)

Step 10. Set the lower control limit (LCL2) to,

where t has the value obtained in Step 5, and compare the combined sample mean (X 2) to the lower control limit (LCL2) to find one of the following:

(i) If the mean of the combined sample (X 2) is less than the lower control limit (LCL2), the basic model is in non-compliance and testing is at an end.

(ii) If the mean of the combined sample (X 2) is equal to or greater than the lower control limit (LCL2), the basic model is in compliance and testing is at an end.

Manufacturer-Option Testing

If a determination of non-compliance is made in Steps 6, 7 or 10, of this appendix A, the manufacturer may request that additional testing be conducted, in accordance with the following procedures.

Step A. The manufacturer requests that an additional number, n3, of units be tested, with n3 chosen such that n1 + n2 + n3 does not exceed 20.

Step B. Compute the mean full-load efficiency, standard error, and lower control limit of the new combined sample in accordance with the procedures prescribed in Steps 8, 9, and 10, of this appendix A.

Step C. Compare the mean performance of the new combined sample to the lower control limit (LCL2) to determine one of the following:

(a) If the new combined sample mean is equal to or greater than the lower control limit, the basic model is in compliance and testing is at an end.

(b) If the new combined sample mean is less than the lower control limit and the value of n1 + n2 + n3 is less than 20, the manufacturer may request that additional units be tested. The total of all units tested may not exceed 20. Steps A, B, and C are then repeated.

(c) Otherwise, the basic model is determined to be in non-compliance.

Subpart V—General Provisions
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Source:  69 FR 61941, Oct. 21, 2004, unless otherwise noted. Redesignated at 70 FR 60417, Oct. 18, 2005.

§ 431.401   Petitions for waiver, and applications for interim waiver, of test procedure.
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(a) General criteria. (1) Any interested person may submit a petition to waive for a particular basic model any requirements of §§431.16, 431.76, 431.86, 431.96, and 431.106 of this part, upon the grounds that either the basic model contains one or more design characteristics which prevent testing of the basic model according to the prescribed test procedures, or the prescribed test procedures may evaluate the basic model in a manner so unrepresentative of its true energy consumption characteristics as to provide materially inaccurate comparative data.

(2) Any person who has submitted a Petition for Waiver as provided in this subpart, may also file an Application for Interim Waiver of the applicable test procedure requirements.

(b) Submission, content, and publication. (1) You must submit your Petition for Waiver in triplicate, to the Assistant Secretary for Energy Efficiency and Renewable Energy, U.S. Department of Energy. Each Petition for Waiver must:

(i) Identify the particular basic model(s) for which a waiver is requested, the design characteristic(s) constituting the grounds for the petition, and the specific requirements sought to be waived, and must discuss in detail the need for the requested waiver;

(ii) Identify manufacturers of all other basic models marketed in the United States and known to the petitioner to incorporate similar design characteristic(s);

(iii) Include any alternate test procedures known to the petitioner to evaluate the characteristics of the basic model in a manner representative of its energy consumption; and

(iv) Be signed by you or by an authorized representative. In accordance with the provisions set forth in 10 CFR 1004.11, any request for confidential treatment of any information contained in a Petition for Waiver or in supporting documentation must be accompanied by a copy of the petition, application or supporting documentation from which the information claimed to be confidential has been deleted. DOE will publish in the Federal Register the petition and supporting documents from which confidential information, as determined by DOE, has been deleted in accordance with 10 CFR 1004.11 and will solicit comments, data and information with respect to the determination of the petition.

(2) You must submit any Application for Interim Waiver in triplicate, with the required three copies of the Petition for Waiver, to the Assistant Secretary for Energy Efficiency and Renewable Energy, U.S. Department of Energy. Each Application for Interim Waiver must reference the Petition for Waiver by identifying the particular basic model(s) for which you seek a waiver and temporary exception. Each Application for Interim Waiver must demonstrate likely success of the Petition for Waiver and address what economic hardship and/or competitive disadvantage is likely to result absent a favorable determination on the Application for Interim Waiver. You or an authorized representative must sign the Application for Interim Waiver.

(c) Notification to other manufacturers. (1) After filing a Petition for Waiver with DOE, and after DOE has published the Petition for Waiver in the Federal Register, you must, within five working days of such publication, notify in writing all known manufacturers of domestically marketed units of the same product type (as defined in Section 340(1) of the Act) and must include in the notice a statement that DOE has published in the Federal Register on a certain date the Petition for Waiver and supporting documents from which confidential information, if any, as determined by DOE, has been deleted in accordance with 10 CFR 1004.11. In complying with the requirements of this paragraph, you must file with DOE a statement certifying the names and addresses of each person to whom you have sent a notice of the Petition for Waiver.

(2) If you apply for Interim Waiver, whether filing jointly with or subsequent to your Petition for Waiver with DOE, you must concurrently notify in writing all known manufacturers of domestically marketed units of the same product type (as defined in Section 340(1) of the Act), and must include in the notice a copy of the Petition for Waiver and a copy of the Application for Interim Waiver. In complying with this section, you must in the written notification include a statement that the Assistant Secretary for Energy Efficiency and Renewable Energy will receive and consider timely written comments on the Application for Interim Waiver. Upon filing an Application for Interim Waiver, you must in complying with the requirements of this paragraph certify to DOE that a copy of these documents has been sent to all known manufacturers of domestically marked units of the same product type (as listed in Section 340(1) of the Act). Such certification must include the names and addresses of such persons. You must comply with the provisions of paragraph (c)(1) of this Section with respect to the petition for waiver.

(d) Comments; responses to comments. (1) Any person submitting written comments to DOE with respect to an Application for Interim Waiver must also send a copy of the comments to the applicant.

(2) Any person submitting written comments to DOE with the respect to a Petition for Waiver must also send a copy of such comments to the petitioner. In accordance with paragraph (b)(1) of this section, a petitioner may submit a rebuttal statement to the Assistant Secretary for Energy Efficiency and Renewable Energy.

(e) Provisions specific to interim waivers—(1) Disposition of application. If administratively feasible, DOE will notify the applicant in writing of the disposition of the Application for Interim Waiver within 15 business days of receipt of the application. Notice of DOE's determination on the Application for Interim Waiver will be published in the Federal Register.

(2) Consequences of filing application. The filing of an Application for Interim Waiver will not constitute grounds for noncompliance with any requirements of this subpart, until an Interim Waiver has been granted.

(3) Criteria for granting. The Assistant Secretary for Energy Efficiency and Renewable Energy will grant an Interim Waiver from test procedure requirements if he or she determines that the applicant will experience economic hardship if the Application for Interim Waiver is denied, if it appears likely that the Petition for Waiver will be granted, and/or if the Assistant Secretary determines that it would be desirable for public policy reasons to grant immediate relief pending a determination on the Petition for Waiver.

(4) Duration. An interim waiver will terminate 180 days after issuance or upon the determination on the Petition for Waiver, whichever occurs first. DOE may extend an interim waiver for up to 180 days or modify its terms based on relevant information contained in the record and any comments received subsequent to issuance of the interim waiver. DOE will publish in the Federal Register notice of such extension and/or any modification of the terms or duration of the interim waiver.

(f) Provisions specific to waivers—(1) Rebuttal by petitioner. Following publication of the Petition for Waiver in the Federal Register, a petitioner may, within 10 working days of receipt of a copy of any comments submitted in accordance with paragraph (b)(1) of this section, submit a rebuttal statement to the Assistant Secretary for Energy Efficiency and Renewable Energy. A petitioner may rebut more than one response in a single rebuttal statement.

(2) Disposition of petition. DOE will notify the petitioner in writing as soon as practicable of the disposition of each Petition for Waiver. The Assistant Secretary for Energy Efficiency and Renewable Energy will issue a decision on the petition as soon as is practicable following receipt and review of the Petition for Waiver and other applicable documents, including, but not limited to, comments and rebuttal statements.

(3) Consequence of filing petition. The filing of a Petition for Waiver will not constitute grounds for noncompliance with any requirements of this subpart, until a waiver or interim waiver has been granted.

(4) Granting: criteria, conditions, and publication. The Assistant Secretary for Energy Efficiency and Renewable Energy will grant a waiver if he or she determines that either the basic model for which the waiver was requested contains a design characteristic which prevents testing of the basic model according to the prescribed test procedures, or the prescribed test procedures may evaluate the basic model in a manner so unrepresentative of its true energy consumption characteristics as to provide materially inaccurate comparative data. The Assistant Secretary for Energy Efficiency and Renewable Energy may grant a waiver subject to conditions, which may include adherence to alternate test procedures. DOE will promptly publish in the Federal Register notice of each waiver granted or denied, and any limiting conditions of each waiver granted.

(g) Revision of regulation. Within one year of the granting of any waiver, the Department will publish in the Federal Register a notice of proposed rulemaking to amend our regulations so as to eliminate any need for the continuation of such waiver. As soon thereafter as practicable, the Department will publish in the Federal Register a final rule. Such waiver will terminate on the effective date of such final rule.

(h) Exhaustion of remedies. In order to exhaust administrative remedies, any person aggrieved by an action under this Section must file an appeal with the DOE's Office of Hearings and Appeals as provided in 10 CFR Part 1003, subpart C.

§ 431.402   Preemption of State regulations for commercial HVAC & WH products.
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Beginning on the effective date of such standard, an energy conservation standard set forth in this Part for a commercial HVAC & WH product supersedes any State or local regulation concerning the energy efficiency or energy use of that product, except as provided for in Section 345(b)(2)(B)–(D) of the Act.

§ 431.403   Maintenance of records.
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(a) If you are the manufacturer of any covered equipment, you must establish, maintain and retain records of the following:

(1) The test data for all testing conducted pursuant to this part;

(2) For electric motors, the development, substantiation, application, and subsequent verification of any AEDM used under this part; and

(3) For electric motors, any written certification received from a certification program, including a certificate or conformity, relied on under the provisions of this part.

(b) You must organize such records and index them so that they are readily accessible for review. The records must include the supporting test data associated with tests performed on any test units to satisfy the requirements of this Part (except tests performed by us directly).

(c) For each basic model, you must retain all such records for a period of two years from the date that production of all units of that basic model has ceased. You must retain records in a form allowing ready access to DOE, upon request.

§ 431.404   Imported equipment.
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(a) Under sections 331 and 345 of the Act, any person importing any covered equipment into the United States must comply with the provisions of the Act and of this part, and is subject to the remedies of this part.

(b) Any covered equipment offered for importation in violation of the Act and of this part will be refused admission into the customs territory of the United States under rules issued by the Secretary of the Treasury, except that the Secretary of the Treasury may, by such rules, authorize the importation of such covered equipment upon such terms and conditions (including the furnishing of a bond) as may appear to the Secretary of Treasury appropriate to ensure that such covered equipment will not violate the Act and this part, or will be exported or abandoned to the United States.

§ 431.405   Exported equipment.
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Under Sections 330 and 345 of the Act, this Part does not apply to any covered equipment if:

(a) Such equipment is manufactured, sold, or held for sale for export from the United States (or such equipment was imported for export), unless such equipment is, in fact, distributed in commerce for use in the United States; and,

(b) Such equipment, when distributed in commerce, or any container in which it is enclosed when so distributed, bears a stamp or label stating that such covered equipment is intended for export.

§ 431.406   Subpoena.
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Pursuant to sections 329(a) and 345 of the Act, for purposes of carrying out this part, the Secretary or the Secretary's designee, may sign and issue subpoenas for the attendance and testimony of witnesses and the production of relevant books, records, papers, and other documents, and administer the oaths. Witnesses summoned under the provisions of this section shall be paid the same fees and mileage as are paid to witnesses in the courts of the United States. In case of contumacy by, or refusal to obey a subpoena served upon any persons subject to this part, the Secretary may seek an order from the District Court of the United States for any District in which such person is found or resides or transacts business requiring such person to appear and give testimony, or to appear and produce documents. Failure to obey such order is punishable by such court as a contempt thereof.

§ 431.407   Confidentiality.
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Pursuant to the provisions of 10 CFR 1004.11, any person submitting information or data which the person believes to be confidential and exempt from public disclosure should submit one complete copy, and 15 copies from which the information believed to be confidential has been deleted. In accordance with the procedures established at 10 CFR 1004.11, the Department shall make its own determination with regard to any claim that information submitted be exempt from public disclosure.

Subpart W—Petitions To Exempt State Regulation From Preemption; Petitions To Withdraw Exemption of State Regulation
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Source:  69 FR 61941, Oct. 21, 2004, unless otherwise noted. Redesignated at 70 FR 60417, Oct. 18, 2005.

§ 431.421   Purpose and scope.
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(a) The regulations in this subpart prescribe the procedures to be followed in connection with petitions requesting a rule that a State regulation prescribing an energy conservation standard or other requirement respecting energy use or energy efficiency of a type (or class) of covered equipment not be preempted.

(b) The regulations in this subpart also prescribe the procedures to be followed in connection with petitions to withdraw a rule exempting a State regulation prescribing an energy conservation standard or other requirement respecting energy use or energy efficiency of a type (or class) of covered equipment.

§ 431.422   Prescriptions of a rule.
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(a) Criteria for exemption from preemption. Upon petition by a State which has prescribed an energy conservation standard or other requirement for a type or class of covered equipment for which a Federal energy conservation standard is applicable, the Secretary shall prescribe a rule that such standard not be preempted if he/she determines that the State has established by a preponderance of evidence that such requirement is needed to meet unusual and compelling State or local energy interests. For the purposes of this regulation, the term “unusual and compelling State or local energy interests” means interests which are substantially different in nature or magnitude from those prevailing in the U.S. generally, and are such that when evaluated within the context of the State's energy plan and forecast, the costs, benefits, burdens, and reliability of energy savings resulting from the State regulation make such regulation preferable or necessary when measured against the costs, benefits, burdens, and reliability of alternative approaches to energy savings or production, including reliance on reasonably predictable market-induced improvements in efficiency of all equipment subject to the State regulation. The Secretary may not prescribe such a rule if he finds that interested persons have established, by a preponderance of the evidence, that the State's regulation will significantly burden manufacturing, marketing, distribution, sale or servicing of the covered equipment on a national basis. In determining whether to make such a finding, the Secretary shall evaluate all relevant factors including: The extent to which the State regulation will increase manufacturing or distribution costs of manufacturers, distributors, and others; the extent to which the State regulation will disadvantage smaller manufacturers, distributors, or dealers or lessen competition in the sale of the covered equipment in the State; the extent to which the State regulation would cause a burden to manufacturers to redesign and produce the covered equipment type (or class), taking into consideration the extent to which the regulation would result in a reduction in the current models, or in the projected availability of models, that could be shipped on the effective date of the regulation to the State and within the U.S., or in the current or projected sales volume of the covered equipment type (or class) in the State and the U.S.; and the extent to which the State regulation is likely to contribute significantly to a proliferation of State commercial and industrial equipment efficiency requirements and the cumulative impact such requirements would have. The Secretary may not prescribe such a rule if he/she finds that such a rule will result in the unavailability in the State of any covered equipment (or class) of performance characteristics (including reliability), features, sizes, capacities, and volumes that are substantially the same as those generally available in the State at the time of the Secretary's finding. The failure of some classes (or types) to meet this criterion shall not affect the Secretary's determination of whether to prescribe a rule for other classes (or types).

(1) Requirements of petition for exemption from preemption. A petition from a State for a rule for exemption from preemption shall include the information listed in paragraphs (a)(1)(i) through (a)(1)(vi) of this section. A petition for a rule and correspondence relating to such petition shall be available for public review except for confidential or proprietary information submitted in accordance with the Department of Energy's Freedom of Information Regulations set forth in 10 CFR Part 1004.

(i) The name, address, and telephone number of the petitioner;

(ii) A copy of the State standard for which a rule exempting such standard is sought;

(iii) A copy of the State's energy plan and forecast;

(iv) Specification of each type or class of covered equipment for which a rule exempting a standard is sought;

(v) Other information, if any, believed to be pertinent by the petitioner; and

(vi) Such other information as the Secretary may require.

(b) Criteria for exemption from preemption when energy emergency conditions exist within State. Upon petition by a State which has prescribed an energy conservation standard or other requirement for a type or class of covered equipment for which a Federal energy conservation standard is applicable, the Secretary may prescribe a rule, effective upon publication in the Federal Register, that such regulation not be preempted if he determines that in addition to meeting the requirements of paragraph (a) of this Section the State has established that: an energy emergency condition exists within the State that imperils the health, safety, and welfare of its residents because of the inability of the State or utilities within the State to provide adequate quantities of gas or electric energy to its residents at less than prohibitive costs; and cannot be substantially alleviated by the importation of energy or the use of interconnection agreements; and the State regulation is necessary to alleviate substantially such condition.

(1) Requirements of petition for exemption from preemption when energy emergency conditions exist within a State. A petition from a State for a rule for exemption from preemption when energy emergency conditions exist within a State shall include the information listed in paragraphs (a)(1)(i) through (a)(1)(vi) of this section. A petition shall also include the information prescribed in paragraphs (b)(1)(i) through (b)(1)(iv) of this section, and shall be available for public review except for confidential or proprietary information submitted in accordance with the Department of Energy's Freedom of Information Regulations set forth in 10 CFR Part 1004:

(i) A description of the energy emergency condition which exists within the State, including causes and impacts.

(ii) A description of emergency response actions taken by the State and utilities within the State to alleviate the emergency condition;

(iii) An analysis of why the emergency condition cannot be alleviated substantially by importation of energy or the use of interconnection agreements;

(iv) An analysis of how the State standard can alleviate substantially such emergency condition.

(c) Criteria for withdrawal of a rule exempting a State standard. Any person subject to a State standard which, by rule, has been exempted from Federal preemption and which prescribes an energy conservation standard or other requirement for a type or class of covered equipment, when the Federal energy conservation standard for such equipment subsequently is amended, may petition the Secretary requesting that the exemption rule be withdrawn. The Secretary shall consider such petition in accordance with the requirements of paragraph (a) of this section, except that the burden shall be on the petitioner to demonstrate that the exemption rule received by the State should be withdrawn as a result of the amendment to the Federal standard. The Secretary shall withdraw such rule if he determines that the petitioner has shown the rule should be withdrawn.

(1) Requirements of petition to withdraw a rule exempting a State standard. A petition for a rule to withdraw a rule exempting a State standard shall include the information prescribed in paragraphs (c)(1)(i) through (c)(1)(vii) of this section, and shall be available for public review, except for confidential or proprietary information submitted in accordance with the Department of Energy's Freedom of Information Regulations set forth in 10 CFR Part 1004:

(i) The name, address and telephone number of the petitioner;

(ii) A statement of the interest of the petitioner for which a rule withdrawing an exemption is sought;

(iii) A copy of the State standard for which a rule withdrawing an exemption is sought;

(iv) Specification of each type or class of covered equipment for which a rule withdrawing an exemption is sought;

(v) A discussion of the factors contained in paragraph (a) of this section;

(vi) Such other information, if any, believed to be pertinent by the petitioner; and

(vii) Such other information as the Secretary may require.

(2) [Reserved]

§ 431.423   Filing requirements.
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(a) Service. All documents required to be served under this subpart shall, if mailed, be served by first class mail. Service upon a person's duly authorized representative shall constitute service upon that person.

(b) Obligation to supply information. A person or State submitting a petition is under a continuing obligation to provide any new or newly discovered information relevant to that petition. Such information includes, but is not limited to, information regarding any other petition or request for action subsequently submitted by that person or State.

(c) The same or related matters. A person or State submitting a petition or other request for action shall state whether to the best knowledge of that petitioner the same or related issue, act, or transaction has been or presently is being considered or investigated by any State agency, department, or instrumentality.

(d) Computation of time. (1) Computing any period of time prescribed by or allowed under this subpart, the day of the action from which the designated period of time begins to run is not to be included. If the last day of the period is Saturday, or Sunday, or Federal legal holiday, the period runs until the end of the next day that is neither a Saturday, or Sunday or Federal legal holiday.

(2) Saturdays, Sundays, and intervening Federal legal holidays shall be excluded from the computation of time when the period of time allowed or prescribed is 7 days or less.

(3) When a submission is required to be made within a prescribed time, DOE may grant an extension of time upon good cause shown.

(4) Documents received after regular business hours are deemed to have been submitted on the next regular business day. Regular business hours for the DOE's National Office, Washington, DC, are 8:30 a.m. to 4:30 p.m.

(5) DOE reserves the right to refuse to accept, and not to consider, untimely submissions.

(e) Filing of petitions. (1) A petition for a rule shall be submitted in triplicate to: The Assistant Secretary for Energy Efficiency and Renewable Energy, U.S. Department of Energy, Section 327 Petitions, Building Technologies, EE–2J, Forrestal Building,1000 Independence Avenue, SW., Washington, DC 20585.

(2) A petition may be submitted on behalf of more than one person. A joint petition shall indicate each person participating in the submission. A joint petition shall provide the information required by §431.212 for each person on whose behalf the petition is submitted.

(3) All petitions shall be signed by the person(s) submitting the petition or by a duly authorized representative. If submitted by a duly authorized representative, the petition shall certify this authorization.

(4) A petition for a rule to withdraw a rule exempting a State regulation, all supporting documents, and all future submissions shall be served on each State agency, department, or instrumentality whose regulation the petitioner seeks to supersede. The petition shall contain a certification of this service which states the name and mailing address of the served parties, and the date of service.

(f) Acceptance for filing. (1) Within 15 days of the receipt of a petition, the Secretary will either accept it for filing or reject it, and the petitioner will be so notified in writing. The Secretary will serve a copy of this notification on each other party served by the petitioner. Only such petitions which conform to the requirements of this subpart and which contain sufficient information for the purposes of a substantive decision will be accepted for filing. Petitions which do not so conform will be rejected and an explanation provided to petitioner in writing.

(2) For purposes of the Act and this subpart, a petition is deemed to be filed on the date it is accepted for filing.

(g) Docket. A petition accepted for filing will be assigned an appropriate docket designation. Petitioner shall use the docket designation in all subsequent submissions.

§ 431.424   Notice of petition.
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(a) Promptly after receipt of a petition and its acceptance for filing, notice of such petition shall be published in the Federal Register. The notice shall set forth the availability for public review of all data and information available, and shall solicit comments, data and information with respect to the determination on the petition. Except as may otherwise be specified, the period for public comment shall be 60 days after the notice appears in the Federal Register.

(b) In addition to the material required under paragraph (a) of this section, each notice shall contain a summary of the State regulation at issue and the petitioner's reasons for the rule sought.

§ 431.425   Consolidation.
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DOE may consolidate any or all matters at issue in two or more proceedings docketed where there exist common parties, common questions of fact and law, and where such consolidation would expedite or simplify consideration of the issues. Consolidation shall not affect the right of any party to raise issues that could have been raised if consolidation had not occurred.

§ 431.426   Hearing.
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The Secretary may hold a public hearing, and publish notice in the Federal Register of the date and location of the hearing, when he determines that such a hearing is necessary and likely to result in a timely and effective resolution of the issues. A transcript shall be kept of any such hearing.

§ 431.427   Disposition of petitions.
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(a) After the submission of public comments under §431.213(a), the Secretary shall prescribe a final rule or deny the petition within 6 months after the date the petition is filed.

(b) The final rule issued by the Secretary or a determination by the Secretary to deny the petition shall include a written statement setting forth his findings and conclusions, and the reasons and basis therefor. A copy of the Secretary's decision shall be sent to the petitioner and the affected State agency. The Secretary shall publish in the Federal Register a notice of the final rule granting or denying the petition and the reasons and basis therefor.

(c) If the Secretary finds that he cannot issue a final rule within the 6-month period pursuant to paragraph (a) of this section, he shall publish a notice in the Federal Register extending such period to a date certain, but no longer than one year after the date on which the petition was filed. Such notice shall include the reasons for the delay.

§ 431.428   Effective dates of final rules.
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(a) A final rule exempting a State standard from Federal preemption will be effective:

(1) Upon publication in the Federal Register if the Secretary determines that such rule is needed to meet an “energy emergency condition” within the State;

(2) Three years after such rule is published in the Federal Register; or

(3) Five years after such rule is published in the Federal Register if the Secretary determines that such additional time is necessary due to the burdens of retooling, redesign or distribution.

(b) A final rule withdrawing a rule exempting a State standard will be effective upon publication in the Federal Register.

§ 431.429   Request for reconsideration.
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(a) Any petitioner whose petition for a rule has been denied may request reconsideration within 30 days of denial. The request shall contain a statement of facts and reasons supporting reconsideration and shall be submitted in writing to the Secretary.

(b) The denial of a petition will be reconsidered only where it is alleged and demonstrated that the denial was based on error in law or fact and that evidence of the error is found in the record of the proceedings.

(c) If the Secretary fails to take action on the request for reconsideration within 30 days, the request is deemed denied, and the petitioner may seek such judicial review as may be appropriate and available.

(d) A petitioner has not exhausted other administrative remedies until a request for reconsideration has been filed and acted upon or deemed denied.

§ 431.430   Finality of decision.
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(a) A decision to prescribe a rule that a State energy conservation standard or other requirement not be preempted is final on the date the rule is issued, i.e., signed by the Secretary. A decision to prescribe such a rule has no effect on other regulations of covered equipment of any other State.

(b) A decision to prescribe a rule withdrawing a rule exempting a State standard or other requirement is final on the date the rule is issued, i.e., signed by the Secretary. A decision to deny such a petition is final on the day a denial of a request for reconsideration is issued, i.e., signed by the Secretary.

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