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Federal Register / Vol. 86, No. 194 / Tuesday, October 12, 2021 / Rules and Regulations 5 The annual energy use, expressed in kilowatt-hours per year and rounded to the nearest kilowatt-hour per year, shall be determined according to appendix B of this subpart.

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ii The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to appendix A of this subpart;
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ii Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to appendix A of this subpart; and

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ii The average per-cycle energy consumption for the specified cycle type, determined according to appendix A of this subpart; and

4 The energy factor, expressed in cubic feet per kilowatt-hour per cycle, shall be:
i For models without an anti-sweat heater switch, the quotient of:
A The adjusted total volume in cubic feet, determined according to appendix A of this subpart, divided by B The average per-cycle energy consumption for the standard cycle in kilowatt-hours per cycle, determined according to appendix A of this subpart, the resulting quotient then being rounded to the second decimal place;
and ii For models having an anti-sweat heater switch, the quotient of:
A The adjusted total volume in cubic feet, determined according to appendix A of this subpart, divided by B Half the sum of the average percycle energy consumption for the standard cycle and the average per-cycle energy consumption for a test cycle type with the anti-sweat heater switch in the position set at the factory just before shipping, each in kilowatt-hours per cycle, determined according to appendix A of this subpart, the resulting quotient then being rounded to the second decimal place.
5 The annual energy use, expressed in kilowatt-hours per year and rounded to the nearest kilowatt-hour per year,
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shall be determined according to appendix A of this subpart.

8. Appendix A to subpart B of part 430 is revised to read as follows:
Appendix A to Subpart B of Part 430
Uniform Test Method for Measuring the Energy Consumption of Refrigerators, Refrigerator-Freezers, and Miscellaneous Refrigeration Products Note: Prior to April 11, 2022, any representations of volume and energy use of refrigerators, refrigerator-freezers, and miscellaneous refrigeration products must be based on the results of testing pursuant to either this appendix or the procedures in appendix A as it appeared at 10 CFR part 430, subpart B, appendix A, in the 10 CFR
parts 200 to 499 edition revised as of January 1, 2019. Any representations of volume and energy use must be in accordance with whichever version is selected. On or after April 11, 2022, any representations of volume and energy use must be based on the results of testing pursuant to this appendix.
For refrigerators and refrigerator-freezers, the rounding requirements specified in sections 4 and 5 of this appendix are not required for use until the compliance date of any amendment of energy conservation standards for these products published after October 12, 2021.
1. Referenced Materials DOE incorporated by reference AHAM
HRF12019, Energy and Internal Volume of Consumer Refrigeration Products HRF1
2019, and AS/NZS 4474.1:2007, Performance of Household Electrical AppliancesRefrigerating Appliances; Part 1: Energy Consumption and Performance, Second Edition AS/NZS 4474.1:2007, in their entirety in 430.3; however, only enumerated provisions of these documents are applicable to this appendix. If there is any conflict between HRF12019 and this appendix or between AS/NZS 4474.1:2007
and this appendix, follow the language of the test procedure in this appendix, disregarding the conflicting industry standard language.
a AHAM HRF12019, HRF12019, Energy and Internal Volume of Consumer Refrigeration Products:
i Section 3Definitions, as specified in section 3 of this appendix;
ii Section 4Method for Determining the Refrigerated Volume of Consumer Refrigeration Products, as specified in section 4.1 of this appendix;
iii Section 5Method for Determining the Energy Consumption of Consumer Refrigeration Products excluding Table 51
and sections 5.5.6.5, 5.8.2.1.2, 5.8.2.1.3, 5.8.2.1.4, 5.8.2.1.5, and 5.8.2.1.6, as specified in section 5 of this appendix; and iv Section 6Method for Determining the Adjusted Volume of Consumer Refrigeration Products, as specified in section 4.2 of this appendix;
b AS/NZS 4474.1:2007, AS/NZS
4474.1:2007, Performance of Household Electrical AppliancesRefrigerating Appliances; Part 1: Energy Consumption and Performance, Second Edition:

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i Appendix MMethod of Interpolation When Two Controls are Adjusted, as specified in sections 5.2b and 5.3e of this appendix.
ii Reserved If there is any conflict between HRF1
2019 and this appendix or between AS/NZS
4474.1:2007 and this appendix, follow the language of the test procedure in this appendix, disregarding the conflicting industry standard language.
2. Scope This appendix provides the test procedure for measuring the annual energy use in kilowatt-hours per year kWh/yr, the total refrigerated volume in cubic feet ft3, and the total adjusted volume in cubic feet ft3 of refrigerators, refrigerator-freezers, and miscellaneous refrigeration products.
3. Definitions Section 3, Definitions, of HRF12019
applies to this test procedure. In case of conflicting terms between HRF12019 and DOEs definitions in this appendix or in 430.2, DOEs definitions take priority.
Through-the-door ice/water dispenser means a device incorporated within the cabinet, but outside the boundary of the refrigerated space, that delivers to the user on demand ice and may also deliver water from within the refrigerated space without opening an exterior door. This definition includes dispensers that are capable of dispensing ice and water or ice only.
4. Volume Determine the refrigerated volume and adjusted volume for refrigerators, refrigeratorfreezers, and miscellaneous refrigeration products in accordance with the following sections of HRF12019, respectively:
4.1. Section 4, Method for Determining the Refrigerated Volume of Consumer Refrigeration Products; and 4.2. Section 6, Method for Determining the Adjusted Volume of Consumer Refrigeration Products.
5. Energy Consumption Determine the annual energy use AEU
in kilowatt-hours per year kWh/yr, for refrigerators, refrigerator-freezers, and miscellaneous refrigeration products in accordance with section 5, Method for Determining the Energy Consumption of Consumer Refrigeration Products, of HRF1
2019, except as follows.
5.1. Test Setup and Test Conditions a In section 5.3.1 of HRF12019, the top of the unit shall be determined by the refrigerated cabinet height, excluding any accessories or protruding components on the top of the unit.
b The ambient temperature and vertical ambient temperature gradient requirements specified in section 5.3.1 of HRF12019
shall be maintained during both the stabilization period and the test period.
c The power supply requirements as specified in section 5.5.1 of HRF12019
shall be maintained based on measurement intervals not to exceed one minute.
d The ice storage compartment temperature requirement as specified in
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