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Federal Register / Vol. 86, No. 194 / Tuesday, October 12, 2021 / Rules and Regulations
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 Figures 51 or 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 nonstandard sensor locations were used. If any temperature sensor is relocated by any amount from the location prescribed in Figure 51 or 52 of HRF12019 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 Figures prescribe a temperature sensor location within 1 inch of a shelf or similar feature e.g., sensor T3 in Figure 51, 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 Standard Approach i 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, the fresh food compartment temperature shall be as specified in section 5.8.1.2.4 of HRF12019, and the cooler compartment temperature shall be as specified in section 5.8.1.2.6 of HRF12019.
ii In place of Table 51 in HRF12019, refer to Table 1 of this section.

TABLE 1TEMPERATURE SETTINGS: GENERAL CHART FOR ALL PRODUCTS
First test
Second test Results
Setting
Mid for all Compartments ..

All compartments below standard reference temperature.

One or more compartments above standard reference temperature.

b Three-Point Interpolation Method Optional Test for Models with Two Compartments and User-Operable Controls.
As specified in section 5.6.36 of HRF1
2019, and as an optional alternative to section 5.2a of this appendix, perform three tests such that the set of tests meets the minimum requirements for interpolation of AS/NZS 4474.1:2007 appendix M, section M3, paragraphs a through c and as illustrated in Figure M1. The target temperatures txA and txB defined in section M4ai of AS/NZ 4474.1:2007 shall be the standardized temperatures defined in section 5.6 of HRF12019.

ET

VerDate Sep<11>2014

17:22 Oct 08, 2021

Warmest for all Compartments.

Coldest for all Compartments.

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All compartments below standard reference temperature.
One or more compartments above standard reference temperature.
All compartments below standard reference temperature.
One or more compartments above standard reference temperature.

5.3. Test Cycle Energy Calculations Section 5.8.2, Energy Consumption, of HRF12019 applies to this test procedure, except as follows:
ai For refrigerators and refrigeratorfreezers: To demonstrate compliance with the energy conservation standards at 10 CFR
430.32a applicable to products manufactured on or after September 15, 2014, IET, expressed in kilowatt-hours per cycle, equals 0.23 for a product with one or more automatic icemakers and otherwise equals 0
zero.

= 1440 XTlK X EP1 +

Where:
ET = test cycle energy expended in kilowatthours per day;
1440 = conversion factor to adjust to a 24hour average use cycle in minutes per day;
K = dimensionless correction factor of 1.0 for refrigerators and refrigerator-freezers and 0.55 for miscellaneous refrigeration products.

Results
Frm 00034

Second Test Only.
First and Second Test.
First and Second Test.
Model may not be certified as compliant with energy conservation standards based on testing of this unit. Confirm that unit meets product definition.
If so, see section 6 of this appendix.

ii For miscellaneous refrigeration products: To demonstrate compliance with the energy conservation standards at 10 CFR
430.32aa applicable to products manufactured on or after October 28, 2019, IET, expressed in kilowatt-hours per cycle, equals 0.23 for a product with one or more automatic icemakers and otherwise equals 0
zero.
b In place of section 5.8.2.1.2 of HRF1
2019, use the calculations provided in this section. For units with long-time automatic defrost control using the two-part test period, the test cycle energy shall be calculated as:

T2 12
EP2 - EP1 x Tl x CT x K

EP1 = energy expended in kilowatt-hours during the first part of the test;
EP2 = energy expended in kilowatt-hours during the second part of the test;
T1 and T2 = length of time in minutes of the first and second test parts, respectively;
CT = defrost timer run time or compressor run time between defrosts in hours required to go through a complete cycle, rounded to the nearest tenth of an hour;

PO 00000

Energy calculation based on:

Fmt 4701

Sfmt 4700

12 = factor to adjust for a 50-percent run time of the compressor in hours per day.
c In place of sections 5.8.2.1.3 and 5.8.2.1.4 of HRF12019, use the calculations provided in this section. For units with variable defrost control, the test cycle energy shall be calculated as set forth in section 5.3a of this appendix with the following addition:
CT shall be calculated equivalent to:

E:FRFM12OCR2.SGM

12OCR2

ER12OC21.001

Setting