§4.1. Purpose and scope. — Inbound Citations

(1) Compartment volume used to determine product category shall be, for each compartment, the mean of the volumes of that specific compartment for the sample of tested units of the basic model, measured according to the provisions in section 4.1 of appendix A of subpart B of part 430 of this chapter for refrigerators and refrigerator-freezers and section 4.1 of appendix B of subpart B of part 430 of this chapter for freezers, or, for each compartment, the volume of that specific compartment calculated for the basic model in accordance with § 429.72(c).

(A) For power consumption in the on and standby modes, the represented value shall be rounded according to the requirements specified in sections 4.1 and 4.3 of appendix H to subpart B of part 430 of this chapter.

(1) Compartment volume used to determine product category shall be, for each compartment, the mean of the volumes of that specific compartment for the sample of tested units of the basic model, measured according to the provisions in section 4.1 of appendix A of subpart B of part 430 of this chapter, or, for each compartment, the volume of that specific compartment calculated for the basic model in accordance with § 429.72(d).

(2) Determine seasonal energy efficiency ratio 2 (SEER2) as described in sections 2 and 5 of appendix M1 to this subpart or seasonal cooling and off-mode rating efficiency (SCORE) as described in sections 2 and 4 of appendix M2 to this subpart, and round off to the nearest 0.025 Btu/W-h.

(1) The test method for testing packaged terminal air conditioners and packaged terminal heat pumps in cooling mode shall consist of application of the methods and conditions in AHRI 310/380-2014 sections 3, 4.1, 4.2, 4.3, and 4.4 (incorporated by reference; see § 431.95), and in ANSI/ASHRAE 16 (incorporated by reference; see § 431.95) or ANSI/ASHRAE 37 (incorporated by reference; see § 431.95), except that instruments used for measuring electricity input shall be accurate to within ±0.5 percent of the quantity measured. Where definitions provided in AHRI 310/380-2014, ANSI/ASHRAE 16, and/or ANSI/ASHRAE 37 conflict with the definitions provided in 10 CFR 431.92, the 10 CFR 431.92 definitions shall be used. Where AHRI 310/380-2014 makes reference to ANSI/ASHRAE 16, it is interpreted as reference to ANSI/ASHRAE 16-1983 (RA 2014).

(b) Standby equipment provided with controls and devices that allow such equipment to operate automatically only when the primary equipment is not operating.