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Federal Register / Vol. 86, No. 194 / Tuesday, October 12, 2021 / Rules and Regulations
F = ratio of per day energy consumption in excess of the least energy and the maximum difference in per-day energy consumption and is equal to 0.20.
f If the three-point interpolation method of section 5.2b of this appendix is used for setting temperature controls, the average percycle energy consumption shall be defined as follows:
E = Ex + IET
Where:
E is defined in 5.9.1.1 of HRF12019;
IET is defined in 5.9.2.1 of HRF12019; and Ex is defined and calculated as described in appendix M, section M4a of AS/NZS
4474.1:2007. The target temperatures txA
and txB defined in section M4ai of AS/
NZS 4474.1:2007 shall be the standardized temperatures defined in section 5.6 of HRF12019.
6. Test Procedure Waivers To the extent that the procedures contained in this appendix do not provide a means for determining the energy consumption of a basic model, a manufacturer must obtain a waiver under 430.27 to establish an acceptable test procedure for each such basic model. Such instances could, for example, include situations where the test setup for a particular basic model is not clearly defined by the provisions of this appendix. For details regarding the criteria and procedures for obtaining a waiver, please refer to 430.27.

9. Appendix B to subpart B of part 430
is revised to read as follows:

Appendix B to Subpart B of Part 430
Uniform Test Method for Measuring the Energy Consumption of Freezers Note: Prior to April 11, 2022, any representations of volume and energy use of freezers must be based on the results of testing pursuant to either this appendix or the procedures in appendix B as it appeared at 10 CFR part 430, subpart B, appendix B, 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 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 HRF1
2019, Energy and Internal Volume of Consumer Refrigeration Products HRF1

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2019 in its entirety in 430.3; however, only enumerated provisions of this document are applicable to this appendix. If there is any conflict between HRF12019 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 Reserved.
If there is any conflict between HRF1
2019 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 freezers.
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 freezers 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.

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5. Energy Consumption Determine the annual energy use AEU
in kilowatt-hours per year kWh/yr, for freezers in accordance with section 5, Method for Determining the Energy Consumption of Consumer Refrigeration Products, of HRF12019, 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 section 5.5.6.5 in HRF12019 is not required.
e For cases in which setup is not clearly defined by this test procedure, manufacturers must submit a petition for a waiver See section 6 of this appendix.
f If the interior arrangements of the unit under test do not conform with those shown in Figure 52 of HRF12019, as appropriate, the unit must be tested by relocating the temperature sensors from the locations specified in the figures to avoid interference with hardware or components within the unit, in which case the specific locations used for the temperature sensors shall be noted in the test data records maintained by the manufacturer in accordance with 10 CFR
429.71, and the certification report shall indicate that non-standard sensor locations were used. If any temperature sensor is relocated by any amount from the location prescribed in Figure 52 of HRF1- 2019 in order to maintain a minimum 1-inch air space from adjustable shelves or other components that could be relocated by the consumer, except in cases in which the Figure prescribes a temperature sensor location within 1 inch of a shelf or similar feature, this constitutes a relocation of temperature sensors that must be recorded in the test data and reported in the certification report as described in this paragraph.
5.2. Test Conduct a For the purposes of comparing compartment temperatures with standardized temperatures, as described in section 5.6 of HRF12019, the freezer compartment temperature shall be as specified in section 5.8.1.2.5 of HRF12019.
b In place of Table 51 in HRF12019, refer to Table 1 of this section.

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