§ 431.97 — Energy Efficiency Standards And Their Compliance Dates

(a) All basic models of commercial package air conditioning and heating equipment must be tested for performance using the applicable DOE test procedure in § 431.96, be compliant with the applicable standards set forth in paragraphs (b) through (i) of this section, and be certified to the Department under 10 CFR part 429.

(b) Each air-cooled commercial package air conditioning and heating equipment (excluding air-cooled equipment with cooling capacity less than 65,000 Btu/h and double-duct air conditioners or heat pumps) manufactured on or after January 1, 2023, and before January 1, 2029, must meet the applicable minimum energy efficiency standard level(s) set forth in table 1 to this paragraph (b). Each air-cooled commercial package air conditioning and heating equipment (excluding air-cooled equipment with cooling capacity less than 65,000 Btu/h and double-duct air conditioners or heat pumps) manufactured on or after January 1, 2029, must meet the applicable minimum energy efficiency standard level(s) set forth in table 2 to this paragraph (b). Each water-cooled commercial package air conditioning and heating equipment manufactured on or after the compliance date listed in table 3 to this paragraph (b) must meet the applicable minimum energy efficiency standard level(s) set forth in table 3. Each evaporatively-cooled commercial air conditioning and heating equipment manufactured on or after the compliance date listed in table 4 to this paragraph (b) must meet the applicable minimum energy efficiency standard level(s) set forth in table 4. Each double-duct air conditioner or heat pump manufactured on or after January 1, 2010, must meet the applicable minimum energy efficiency standard level(s) set forth in table 5 to this paragraph (b).

Table 1 to Paragraph (b)—Minimum Efficiency Standards for Air-Cooled Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity Greater Than or Equal to 65,000 Btu/h (Excluding Double-Duct Air-Conditioners and Heat Pumps)

Table 2 to Paragraph (b)—Updated Minimum Efficiency Standards for Air-Cooled Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity Greater Than or Equal to 65,000 Btu/h (Excluding Double-Duct Air Conditioners and Heat Pumps)

Table 3 to Paragraph (b)—Minimum Cooling Efficiency Standards for Water-Cooled Commercial Package Air Conditioning Equipment

Table 4 to Paragraph (b)—Minimum Cooling Efficiency Standards for Evaporatively-Cooled Commercial Package Air Conditioning Equipment

Table 5 to Paragraph (b)—Minimum Efficiency Standards for Double-Duct Air Conditioners or Heat Pumps

(c) Each water-source heat pump manufactured starting on the compliance date listed in table 6 to this paragraph (c) must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (c).

Table 6 to Paragraph (c)—Minimum Efficiency Standards for Water-Source Heat Pumps (Water-to-Air, Water-Loop)

(d) Each non-standard size packaged terminal air conditioner (PTAC) and packaged terminal heat pump (PTHP) manufactured on or after October 7, 2010, must meet the applicable minimum energy efficiency standard level(s) set forth in table 7 to this paragraph (d). Each standard size PTAC manufactured on or after October 8, 2012, and before January 1, 2017, must meet the applicable minimum energy efficiency standard level(s) set forth in table 7. Each standard size PTHP manufactured on or after October 8, 2012, must meet the applicable minimum energy efficiency standard level(s) set forth in table 7. Each standard size PTAC manufactured on or after January 1, 2017, must meet the applicable minimum energy efficiency standard level(s) set forth in table 8 to this paragraph (d).

Table 7 to Paragraph (d)—Minimum Efficiency Standards for PTAC and PTHP

Table 8 to Paragraph (d)—Updated Minimum Efficiency Standards for PTAC

(e) (1) Each single package vertical air conditioner and single package vertical heat pump manufactured on or after January 1, 2010, but before October 9, 2015 (for models ≥65,000 Btu/h and <135,000 Btu/h), or October 9, 2016 (for models ≥135,000 Btu/h and <240,000 Btu/h), must meet the applicable minimum energy conservation standard level(s) set forth in this paragraph (e)(1).

Table 9 to Paragraph (e)(1)—Minimum Efficiency Standards for Single Package Vertical Air Conditioners and Single Package Vertical Heat Pumps

(2) Each single package vertical air conditioner and single package vertical heat pump manufactured on and after October 9, 2015 (for models ≥65,000 Btu/h and <135,000 Btu/h), or October 9, 2016 (for models ≥135,000 Btu/h and <240,000 Btu/h), but before September 23, 2019, must meet the applicable minimum energy conservation standard level(s) set forth in this paragraph (e)(2).

Table 10 to Paragraph (e)(2)—Minimum Efficiency Standards for Single Package Vertical Air Conditioners and Single Package Vertical Heat Pumps

(3) Each single package vertical air conditioner and single package vertical heat pump manufactured on and after September 23, 2019, must meet the applicable minimum energy conservation standard level(s) set forth in this paragraph (e)(3).

Table 11 to Paragraph (e)(3)—Updated Minimum Efficiency Standards for Single Package Vertical Air Conditioners and Single Package Vertical Heat Pumps

(f) (1) Each computer room air conditioner with a net sensible cooling capacity less than 65,000 Btu/h manufactured on or after October 29, 2012, and before May 28, 2024 and each computer room air conditioner with a net sensible cooling capacity greater than or equal to 65,000 Btu/h and less than 760,000 Btu/h manufactured on or after October 29, 2013, and before May 28, 2024 must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (f)(1).

Table 12 to Paragraph (f)(1)—Minimum Efficiency Standards for Computer Room Air Conditioners

(2) Each computer room air conditioner manufactured on or after May 28, 2024, must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (f)(2).

Table 13 to Paragraph (f)(2)—Updated Minimum Efficiency Standards for Floor-Mounted Computer Room Air Conditioners

Table 14 to Paragraph (f)(2)—Minimum Efficiency Standards for Ceiling-Mounted Computer Room Air Conditioners

(g) (1) Each variable refrigerant flow air conditioner or heat pump manufactured on or after the compliance date listed in table 15 to this paragraph (g)(1) and prior to January 1, 2024, must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (g)(1).

Table 15 to Paragraph (g)(1)—Minimum Efficiency Standards for Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps

(2) Each variable refrigerant flow air conditioner or heat pump (except air-cooled systems with cooling capacity less than 65,000 Btu/h) manufactured on or after January 1, 2024, must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (g)(2).

Table 16 to Paragraph (g)(2)—Updated Minimum Efficiency Standards for Variable Refrigerant Flow Multi-Split Air Conditioners and Heat Pumps

(h) Each direct expansion-dedicated outdoor air system manufactured on or after the compliance date listed in table 17 to this paragraph (h) must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (h).

Table 17 to Paragraph (h)—Minimum Efficiency Standards for Direct Expansion-Dedicated Outdoor Air Systems

(i) Air-cooled, three-phase, commercial package air conditioning and heating equipment with a cooling capacity of less than 65,000 Btu/h and air-cooled, three-phase variable refrigerant flow multi-split air conditioning and heating equipment with a cooling capacity of less than 65,000 Btu/h manufactured on or after the compliance date listed in tables 18 and 19 to this paragraph (i) must meet the applicable minimum energy efficiency standard level(s) set forth in this paragraph (i).

Table 18 to Paragraph (i)—Minimum Efficiency Standards for Air-Cooled, Three-Phase, Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h and Air-Cooled, Three-Phase, Small Variable Refrigerant Flow Multi-Split Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h

Table 19 to Paragraph (i)—Updated Minimum Efficiency Standards for Air-Cooled, Three-Phase, Commercial Package Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h and Air-Cooled, Three-Phase, Small Variable Refrigerant Flow Multi-Split Air Conditioning and Heating Equipment With a Cooling Capacity of Less Than 65,000 Btu/h