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Federal Register / Vol. 86, No. 58 / Monday, March 29, 2021 / Rules and Regulations viii Section 8Test Procedures, Section 8.3Air Conditioner Break-In ix Section 8Test Procedures, Section 8.4Air Conditioner Installation x Section 8 Test Procedures, Section 8.5Cooling Capacity Test xi Section 9Data To Be Recorded, Section 9.1
xii Section 10Measurement Uncertainty xiii Normative Appendix A Cooling Capacity CalculationsCalorimeter Test Indoor and Calorimeter Test Outdoor If there is any conflict between any industry standards and this appendix, follow the language of the test procedure in this appendix, disregarding the conflicting industry standard language.
Scope This appendix contains the test requirements to measure the energy performance of a room air conditioner.
2. Definitions 2.1 Active mode means a mode in which the room air conditioner is connected to a mains power source, has been activated and is performing any of the following functions: Cooling or heating the conditioned space, or circulating air through activation of its fan or blower, with or without energizing active air-cleaning components or devices such as ultra-violet UV radiation, electrostatic filters, ozone generators, or other air-cleaning devices.
2.2 ANSI/AHAM RAC1 means the test standard published jointly by the American National Standards Institute and the Association of Home Appliance Manufacturers, titled Energy Measurement Test Procedure for Room Air Conditioners, Standard RAC12020 incorporated by reference; see 430.3.
2.3 ANSI/ASHRAE 16 means the test standard published jointly by the American National Standards Institute and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers titled Method of Testing for Rating Room Air Conditioners and Packaged Terminal Air Conditioners, Standard 162016
incorporated by reference; see 430.3.
2.4 ANSI/ASHRAE 41.1 means the test standard published jointly by the American National Standards Institute and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers titled Standard Method for Temperature Measurement, Standard 41.12013
incorporated by reference; see 430.3.
2.5 ASHRAE 41.21987 RA 1992
means the test standard published jointly by the American National Standards Institute and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers titled Standard Methods for Laboratory Airflow Measurement, Standard 41.21987 RA 1992 incorporated by reference; see 430.3.
2.6 ASHRAE 41.32014 means the test standard published jointly by the American National Standards Institute and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers titled Standard Methods for Pressure Measurement, Standard 41.32014
incorporated by reference; see 430.3.

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2.7 ASHRAE 41.62014 means the test standard published jointly by the American National Standards Institute and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers titled Standard Method for Humidity Measurement, Standard 41.62014
incorporated by reference; see 430.3.
2.8 ASHRAE 41.112014 means the test standard published jointly by the American National Standards Institute and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers titled Standard Methods for Power Measurement, Standard 41.112014
incorporated by reference; see 430.3.
2.9 Combined energy efficiency ratio means the energy efficiency of a room air conditioner in British thermal units per watthour Btu/Wh and determined in section 5.2.2 of this appendix for single-speed room air conditioners and section 5.3.12 of this appendix for variable-speed room air conditioners.
2.10 Cooling capacity means the amount of cooling, in British thermal units per hour Btu/h, provided to a conditioned space, measured under the specified conditions and determined in section 4.1 of this appendix.
2.11 Cooling mode means an active mode in which a room air conditioner has activated the main cooling function according to the thermostat or temperature sensor signal or switch including remote control.
2.12 Full compressor speed full means the compressor speed at which the unit operates at full load test conditions, when using user settings to achieve maximum cooling capacity, according to the instructions in ANSI/ASHRAE Standard 16
2016.
2.13 IEC 62301 means the test standard published by the International Electrotechnical Commission, titled Household electrical appliances Measurement of standby power, Publication 62301 Edition 2.0 201101, incorporated by reference; see 430.3.
2.14 Inactive mode means a standby mode that facilitates the activation of active mode by remote switch including remote control or internal sensor or which provides continuous status display.
2.15 Intermediate compressor speed intermediate means the compressor speed higher than the low compressor speed at which the measured capacity is higher than the capacity at low compressor speed by one third of the difference between Capacity4, the measured cooling capacity at test condition 4 in Table 1 of this appendix, and Capacity1, the measured cooling capacity with the full compressor speed at test condition 1 in Table 1 of this appendix, with a tolerance of plus 5 percent designs with non-discrete speed stages or the next highest inverter frequency step designs with discrete speed steps, achieved by following the instructions certified by the manufacturer.
2.16 Low compressor speed low means the compressor speed at which the unit operates at low load test conditions, achieved by following the instructions certified by the manufacturer, such that
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Capacity4, the measured cooling capacity at test condition 4 in Table 1 of this appendix, is no less than 47 percent and no greater than 57 percent of Capacity1, the measured cooling capacity with the full compressor speed at test condition 1 in Table 1 of this appendix.
2.17 Off mode means a mode in which a room air conditioner is connected to a mains power source and is not providing any active or standby mode function and where the mode may persist for an indefinite time, including an indicator that only shows the user that the product is in the off position.
2.18 Single-speed room air conditioner means a type of room air conditioner that cannot automatically adjust the compressor speed based on detected conditions.
2.19 Standby mode means any product mode where the unit is connected to a mains power source and offers one or more of the following user-oriented or protective functions which may persist for an indefinite time:
a To facilitate the activation of other modes including activation or deactivation of active mode by remote switch including remote control, internal sensor, or timer. A
timer is a continuous clock function which may or may not be associated with a display that provides regular scheduled tasks e.g., switching and that operates on a continuous basis.
b Continuous functions, including information or status displays including clocks or sensor-based functions.
2.20 Theoretical comparable singlespeed room air conditioner means a theoretical single-speed room air conditioner with the same cooling capacity and electrical power input as the variable-speed room air conditioner under test, with no cycling losses considered, at test condition 1 in Table 1 of this appendix.
2.21 Variable-speed compressor means a compressor that can vary its rotational speed in non-discrete stages or discrete steps from low to full.
2.22 Variable-speed room air conditioner means a type of room air conditioner that can automatically adjust compressor speed based on detected conditions.
3. Test Methods and General Instructions 3.1 Cooling mode. The test method for testing room air conditioners in cooling mode cooling mode test consists of applying the methods and conditions in AHAM RAC
1 Section 4, Paragraph 4.1 and for singlespeed room air conditioners, Section 5, Paragraph 5.2.1.1, and for variable-speed room air conditioners, Section 5, Paragraph 5.2.1.2, except in accordance with ANSI/
ASHRAE 16, including the references to ANSI/ASHRAE 41.1, ANSI/ASHRAE 41.2
1987 RA 1992, ANSI/ASHRAE 41.32014, ANSI/ASHRAE 41.62014, and ANSI/
ASHRAE 41.112014, all referenced therein, as defined in sections 2.3 through 2.8 of this appendix. Use the cooling capacity simultaneous indoor calorimeter and outdoor calorimeter test method in Section 7.1.a and Sections 8.1 through 8.5 of ANSI/ASHRAE
16, except as otherwise specified in this
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