#### § 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](/on/2024-09-17/title-10/section-431.96), be compliant with the applicable standards set forth in [paragraphs (b)](/on/2024-09-17/title-10/section-431.97#p-431.97(b)) through [(i)](/on/2024-09-17/title-10/section-431.97#p-431.97(i)) of this section, and be certified to the Department under [10 CFR part 429](/on/2024-09-17/title-10/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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)

| Cooling capacity | Subcategory | Supplementary heating type | Minimum efficiency1 | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- | --- |
| **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)** | | | | |
| ≥65,000 Btu/h and <135,000 Btu/h | AC | Electric Resistance Heating or No Heating | IEER = 14.8 | January 1, 2023. |
| ≥65,000 Btu/h and <135,000 Btu/h | AC | All Other Types of Heating | IEER = 14.6 | January 1, 2023. |
| ≥65,000 Btu/h and <135,000 Btu/h | HP | Electric Resistance Heating or No Heating | IEER = 14.1 COP = 3.4 | January 1, 2023. |
| ≥65,000 Btu/h and <135,000 Btu/h | HP | All Other Types of Heating | IEER = 13.9 COP = 3.4 | January 1, 2023. |
| ≥135,000 Btu/h and <240,000 Btu/h | AC | Electric Resistance Heating or No Heating | IEER = 14.2 | January 1, 2023. |
| ≥135,000 Btu/h and <240,000 Btu/h | AC | All Other Types of Heating | IEER = 14.0 | January 1, 2023. |
| ≥135,000 Btu/h and <240,000 Btu/h | HP | Electric Resistance Heating or No Heating | IEER = 13.5 COP = 3.3 | January 1, 2023. |
| ≥135,000 Btu/h and <240,000 Btu/h | HP | All Other Types of Heating | IEER = 13.3 COP = 3.3 | January 1, 2023. |
| ≥240,000 Btu/h and <760,000 Btu/h | AC | Electric Resistance Heating or No Heating | IEER = 13.2 | January 1, 2023. |
| ≥240,000 Btu/h and <760,000 Btu/h | AC | All Other Types of Heating | IEER = 13.0 | January 1, 2023. |
| ≥240,000 Btu/h and <760,000 Btu/h | HP | Electric Resistance Heating or No Heating | IEER = 12.5 COP = 3.2 | January 1, 2023. |
| ≥240,000 Btu/h and <760,000 Btu/h | HP | All Other Types of Heating | IEER = 12.3 COP = 3.2 | January 1, 2023. |
| | | | | |
| --- | --- | --- | --- | --- |
| 1 See section 3 of appendix A to this subpart for the test conditions upon which the COP standards are based. | | | | |

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)

| Cooling capacity | Subcategory | Supplementary heating type | Minimum efficiency | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- | --- |
| **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)** | | | | |
| ≥65,000 Btu/h and <135,000 Btu/h | AC | Electric Resistance Heating or No Heating | IVEC = 14.3 | January 1, 2029. |
| ≥65,000 Btu/h and <135,000 Btu/h | AC | All Other Types of Heating | IVEC = 13.8 | January 1, 2029. |
| ≥65,000 Btu/h and <135,000 Btu/h | HP | All Types of Heating | IVEC = 13.4 IVHE = 6.2 | January 1, 2029. |
| ≥135,000 Btu/h and <240,000 Btu/h | AC | Electric Resistance Heating or No Heating | IVEC = 13.8 | January 1, 2029. |
| ≥135,000 Btu/h and <240,000 Btu/h | AC | All Other Types of Heating | IVEC = 13.3 | January 1, 2029. |
| ≥135,000 Btu/h and <240,000 Btu/h | HP | All Types of Heating | IVEC = 13.1 IVHE = 6.0 | January 1, 2029. |
| ≥240,000 Btu/h and <760,000 Btu/h | AC | Electric Resistance Heating or No Heating | IVEC = 12.9 | January 1, 2029. |
| ≥240,000 Btu/h and <760,000 Btu/h | AC | All Other Types of Heating | IVEC = 12.2 | January 1, 2029. |
| ≥240,000 Btu/h and <760,000 Btu/h | HP | All Types of Heating | IVEC = 12.1 IVHE = 5.8 | January 1, 2029. |

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

| Cooling capacity | Supplementary heating type | Minimum efficiency | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- |
| **Water-Cooled Commercial Package Air Conditioning Equipment** | | | |
| <65,000 Btu/h | All | EER = 12.1 | October 29, 2003. |
| ≥65,000 Btu/h and <135,000 Btu/h | No Heating or Electric Resistance Heating | EER = 12.1 | June 1, 2013. |
| ≥65,000 Btu/h and <135,000 Btu/h | All Other Types of Heating | EER = 11.9 | June 1, 2013. |
| ≥135,000 Btu/h and <240,000 Btu/h | No Heating or Electric Resistance Heating | EER = 12.5 | June 1, 2014. |
| ≥135,000 Btu/h and <240,000 Btu/h | All Other Types of Heating | EER = 12.3 | June 1, 2014. |
| ≥240,000 Btu/h and <760,000 Btu/h | No Heating or Electric Resistance Heating | EER = 12.4 | June 1, 2014. |
| ≥240,000 Btu/h and <760,000 Btu/h | All Other Types of Heating | EER = 12.2 | June 1, 2014. |

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

| Cooling capacity | Supplementary heating type | Minimum efficiency | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- |
| **Evaporatively-Cooled Commercial Package Air Conditioning Equipment** | | | |
| <65,000 Btu/h | All | EER = 12.1 | October 29, 2003. |
| ≥65,000 Btu/h and <135,000 Btu/h | No Heating or Electric Resistance Heating | EER = 12.1 | June 1, 2013. |
| ≥65,000 Btu/h and <135,000 Btu/h | All Other Types of Heating | EER = 11.9 | June 1, 2013. |
| ≥135,000 Btu/h and <240,000 Btu/h | No Heating or Electric Resistance Heating | EER = 12.0 | June 1, 2014. |
| ≥135,000 Btu/h and <240,000 Btu/h | All Other Types of Heating | EER = 11.8 | June 1, 2014. |
| ≥240,000 Btu/h and <760,000 Btu/h | No Heating or Electric Resistance Heating | EER = 11.9 | June 1, 2014. |
| ≥240,000 Btu/h and <760,000 Btu/h | All Other Types of Heating | EER = 11.7 | June 1, 2014. |

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

| Cooling capacity | Subcategory | Supplementary heating type | Minimum efficiency1 | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- | --- |
| **Double-Duct Air Conditioners or Heat Pumps** | | | | |
| ≥65,000 Btu/h and <135,000 Btu/h | AC | Electric Resistance Heating or No Heating | EER = 11.2 | January 1, 2010. |
| ≥65,000 Btu/h and <135,000 Btu/h | AC | All Other Types of Heating | EER = 11.0 | January 1, 2010. |
| ≥65,000 Btu/h and <135,000 Btu/h | HP | Electric Resistance Heating or No Heating | EER = 11.0 COP = 3.3 | January 1, 2010. |
| ≥65,000 Btu/h and <135,000 Btu/h | HP | All Other Types of Heating | EER = 10.8 COP = 3.3 | January 1, 2010. |
| ≥135,000 Btu/h and <240,000 Btu/h | AC | Electric Resistance Heating or No Heating | EER = 11.0 | January 1, 2010. |
| ≥135,000 Btu/h and <240,000 Btu/h | AC | All Other Types of Heating | EER = 10.8 | January 1, 2010. |
| ≥135,000 Btu/h and <240,000 Btu/h | HP | Electric Resistance Heating or No Heating | EER = 10.6 COP = 3.2 | January 1, 2010. |
| ≥135,000 Btu/h and <240,000 Btu/h | HP | All Other Types of Heating | EER = 10.4 COP = 3.2 | January 1, 2010. |
| ≥240,000 Btu/h and <300,000 Btu/h | AC | Electric Resistance Heating or No Heating | EER = 10.0 | January 1, 2010. |
| ≥240,000 Btu/h and <300,000 Btu/h | AC | All Other Types of Heating | EER = 9.8 | January 1, 2010. |
| ≥240,000 Btu/h and <300,000 Btu/h | HP | Electric Resistance Heating or No Heating | EER = 9.5 COP = 3.2 | January 1, 2010. |
| ≥240,000 Btu/h and <300,000 Btu/h | HP | All Other Types of Heating | EER = 9.3 COP = 3.2 | January 1, 2010. |
| | | | | |
| --- | --- | --- | --- | --- |
| 1 See section 3 of appendix A to this subpart for the test conditions upon which the COP standards are based. | | | | |

(c) Each water-source heat pump manufactured starting on the compliance date listed in table 6 to this [paragraph (c)](/on/2024-09-17/title-10/section-431.97#p-431.97(c)) must meet the applicable minimum energy efficiency standard level(s) set forth in this [paragraph (c)](/on/2024-09-17/title-10/section-431.97#p-431.97(c)).

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

| Cooling capacity | Minimum efficiency | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- |
| **Water-Source Heat Pumps (Water-to-Air, Water-Loop)** | | |
| <17,000 Btu/h | EER = 12.2 COP = 4.3 | October 9, 2015. |
| ≥17,000 Btu/h and <65,000 Btu/h | EER = 13.0 COP = 4.3 | October 9, 2015. |
| ≥65,000 Btu/h and <135,000 Btu/h | EER = 13.0 COP = 4.3 | October 9, 2015. |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(d)).

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

| Equipment type | Category | Cooling capacity | Minimum efficiency | Compliance date: products manufactured on and after . . . |
| --- | --- | --- | --- | --- |
| PTAC | Standard Size | <7,000 Btu/h | EER = 11.7 | October 8, 2012.2 |
| | | ≥7,000 Btu/h and ≤15,000 Btu/h | EER = 13.8−(0.3 × Cap1) | October 8, 2012.2 |
| | | >15,000 Btu/h | EER = 9.3 | October 8, 2012.2 |
| | Non-Standard Size | <7,000 Btu/h | EER = 9.4 | October 7, 2010. |
| | | ≥7,000 Btu/h and ≤15,000 Btu/h | EER = 10.9−(0.213 × Cap1) | October 7, 2010. |
| | | >15,000 Btu/h | EER = 7.7 | October 7, 2010. |
| PTHP | Standard Size | <7,000 Btu/h | EER = 11.9 COP = 3.3 | October 8, 2012. |
| | | ≥7,000 Btu/h and ≤15,000 Btu/h | EER = 14.0−(0.3 × Cap1) COP = 3.7−(0.052 × Cap1) | October 8, 2012. |
| | | >15,000 Btu/h | EER = 9.5 COP = 2.9 | October 8, 2012. |
| | Non-Standard Size | <7,000 Btu/h | EER = 9.3 COP = 2.7 | October 7, 2010. |
| | | ≥7,000 Btu/h and ≤15,000 Btu/h | EER = 10.8−(0.213 × Cap1) COP = 2.9−(0.026 × Cap1) | October 7, 2010. |
| | | >15,000 Btu/h | EER = 7.6 COP = 2.5 | October 7, 2010. |
| | | | | |
| --- | --- | --- | --- | --- |
| 1 “Cap” means cooling capacity in thousand Btu/h at 95 °F outdoor dry-bulb temperature. | | | | |
| 2 And manufactured before January 1, 2017. See table 8 to this [paragraph (d)](/on/2024-09-17/title-10/section-431.97#p-431.97(d)) for updated efficiency standards that apply to this category of equipment manufactured on and after January 1, 2017. | | | | |

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

| Equipment type | Category | Cooling capacity | Minimum efficiency | Compliance date: products manufactured on and after . . . |
| --- | --- | --- | --- | --- |
| PTAC | Standard Size | <7,000 Btu/h | EER = 11.9 | January 1, 2017. |
| | | ≥7,000 Btu/h and ≤15,000 Btu/h | EER = 14.0−(0.3 × Cap1) | January 1, 2017. |
| | | >15,000 Btu/h | EER = 9.5 | January 1, 2017. |
| | | | | |
| --- | --- | --- | --- | --- |
| 1 “Cap” means cooling capacity in thousand Btu/h at 95 °F outdoor dry-bulb temperature. | | | | |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(e)(1)).

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

| Equipment type | Cooling capacity | Sub- category | Efficiency level | Compliance date: products manufactured on and after . . . |
| --- | --- | --- | --- | --- |
| Single package vertical air conditioners and single package vertical heat pumps, single-phase and three-phase | <65,000 Btu/h | AC HP | EER = 9.0 EER = 9.0 COP = 3.0 | January 1, 2010. January 1, 2010. |
| Single package vertical air conditioners and single package vertical heat pumps | ≥65,000 Btu/h and <135,000 Btu/h | AC HP | EER = 8.9 EER = 8.9 COP = 3.0 | January 1, 2010. January 1, 2010. |
| Single package vertical air conditioners and single package vertical heat pumps | ≥135,000 Btu/h and <240,000 Btu/h | AC HP | EER = 8.6 EER = 8.6 COP = 2.9 | January 1, 2010. January 1, 2010. |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(e)(2)).

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

| Equipment type | Cooling capacity | Sub- category | Efficiency level | Compliance date: products manufactured on and after . . . |
| --- | --- | --- | --- | --- |
| Single package vertical air conditioners and single package vertical heat pumps, single-phase and three-phase | <65,000 Btu/h | AC HP | EER = 9.0 EER = 9.0 COP = 3.0 | January 1, 2010. January 1, 2010. |
| Single package vertical air conditioners and single package vertical heat pumps | ≥65,000 Btu/h and <135,000 Btu/h | AC HP | EER = 10.0 EER = 10.0 COP = 3.0 | October 9, 2015. October 9, 2015. |
| Single package vertical air conditioners and single package vertical heat pumps | ≥135,000 Btu/h and <240,000 Btu/h | AC HP | EER = 10.0 EER = 10.0 COP = 3.0 | October 9, 2016. October 9, 2016. |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(e)(3)).

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

| Equipment type | Cooling capacity | Sub- category | Efficiency level | Compliance date: products manufactured on and after . . . |
| --- | --- | --- | --- | --- |
| Single package vertical air conditioners and single package vertical heat pumps, single-phase and three-phase | <65,000 Btu/h | AC HP | EER = 11.0 EER = 11.0 COP = 3.3 | September 23, 2019. September 23, 2019. |
| Single package vertical air conditioners and single package vertical heat pumps | ≥65,000 Btu/h and <135,000 Btu/h | AC HP | EER = 10.0 EER = 10.0 COP = 3.0 | October 9, 2015. October 9, 2015. |
| Single package vertical air conditioners and single package vertical heat pumps | ≥135,000 Btu/h and <240,000 Btu/h | AC HP | EER = 10.0 EER = 10.0 COP = 3.0 | October 9, 2016. October 9, 2016. |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(f)(1)).

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

| Equipment type | Net sensible cooling capacity | Minimum SCOP efficiency | |
| --- | --- | --- | --- |
| Downflow | Upflow |
| Air-Cooled | <65,000 Btu/h | 2.20 | 2.09 |
| | ≥65,000 Btu/h and <240,000 Btu/h | 2.10 | 1.99 |
| | ≥240,000 Btu/h and <760,000 Btu/h | 1.90 | 1.79 |
| Water-Cooled | <65,000 Btu/h | 2.60 | 2.49 |
| | ≥65,000 Btu/h and <240,000 Btu/h | 2.50 | 2.39 |
| | ≥240,000 Btu/h and <760,000 Btu/h | 2.40 | 2.29 |
| Water-Cooled with Fluid Economizer | <65,000 Btu/h | 2.55 | 2.44 |
| | ≥65,000 Btu/h and <240,000 Btu/h | 2.45 | 2.34 |
| | ≥240,000 Btu/h and <760,000 Btu/h | 2.35 | 2.24 |
| Glycol-Cooled | <65,000 Btu/h | 2.50 | 2.39 |
| | ≥65,000 Btu/h and <240,000 Btu/h | 2.15 | 2.04 |
| | ≥240,000 Btu/h and <760,000 Btu/h | 2.10 | 1.99 |
| Glycol-Cooled with Fluid Economizer | <65,000 Btu/h | 2.45 | 2.34 |
| | ≥65,000 Btu/h and <240,000 Btu/h | 2.10 | 1.99 |
| | ≥240,000 Btu/h and <760,000 Btu/h | 2.05 | 1.94 |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(f)(2)).

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

| Equipment type | Downflow and upflow ducted | | | Upflow non-ducted and horizontal flow | | |
| --- | --- | --- | --- | --- | --- | --- |
| Net sensible cooling capacity | Minimum NSenCOP efficiency | | Net sensible cooling capacity | Minimum NSenCOP efficiency | |
| Downflow | Upflow ducted | Upflow non-ducted | Horizontal flow |
| Air-Cooled | <80,000 Btu/h | 2.70 | 2.67 | <65,000 Btu/h | 2.16 | 2.65 |
| | ≥80,000 Btu/h and <295,000 Btu/h | 2.58 | 2.55 | ≥65,000 Btu/h and <240,000 Btu/h | 2.04 | 2.55 |
| | ≥295,000 Btu/h and <930,000 Btu/h | 2.36 | 2.33 | ≥240,000 Btu/h and <760,000 Btu/h | 1.89 | 2.47 |
| Air-Cooled with Fluid Economizer | <80,000 Btu/h ≥80,000 Btu/h and <295,000 Btu/h | 2.70 2.58 | 2.67 2.55 | <65,000 Btu/h ≥65,000 Btu/h and <240,000 Btu/h | 2.09 1.99 | 2.65 2.55 |
| | ≥295,000 Btu/h and <930,000 Btu/h | 2.36 | 2.33 | ≥240,000 Btu/h and <760,000 Btu/h | 1.81 | 2.47 |
| Water-Cooled | <80,000 Btu/h | 2.82 | 2.79 | <65,000 Btu/h | 2.43 | 2.79 |
| | ≥80,000 Btu/h and <295,000 Btu/h | 2.73 | 2.70 | ≥65,000 Btu/h and <240,000 Btu/h | 2.32 | 2.68 |
| | ≥295,000 Btu/h and <930,000 Btu/h | 2.67 | 2.64 | ≥240,000 Btu/h and <760,000 Btu/h | 2.20 | 2.60 |
| Water-Cooled with Fluid Economizer | <80,000 Btu/h ≥80,000 Btu/h and <295,000 Btu/h | 2.77 2.68 | 2.74 2.65 | <65,000 Btu/h ≥65,000 Btu/h and <240,000 Btu/h | 2.35 2.24 | 2.71 2.60 |
| | ≥295,000 Btu/h and <930,000 Btu/h | 2.61 | 2.58 | ≥240,000 Btu/h and <760,000 Btu/h | 2.12 | 2.54 |
| Glycol-Cooled | <80,000 Btu/h | 2.56 | 2.53 | <65,000 Btu/h | 2.08 | 2.48 |
| | ≥80,000 Btu/h and <295,000 Btu/h | 2.24 | 2.21 | ≥65,000 Btu/h and <240,000 Btu/h | 1.90 | 2.18 |
| | ≥295,000 Btu/h and <930,000 Btu/h | 2.21 | 2.18 | ≥240,000 Btu/h and <760,000 Btu/h | 1.81 | 2.18 |
| Glycol-Cooled with Fluid Economizer | <80,000 Btu/h ≥80,000 Btu/h and <295,000 Btu/h | 2.51 2.19 | 2.48 2.16 | <65,000 Btu/h ≥65,000 Btu/h and <240,000 Btu/h | 2.00 1.82 | 2.44 2.10 |
| | ≥295,000 Btu/h and <930,000 Btu/h | 2.15 | 2.12 | ≥240,000 Btu/h and <760,000 Btu/h | 1.73 | 2.10 |

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

| Equipment type | Net sensible cooling capacity | Minimum NSenCOP efficiency | |
| --- | --- | --- | --- |
| Ducted | Non-ducted |
| Air-Cooled with Free Air Discharge Condenser | <29,000 Btu/h | 2.05 | 2.08 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 2.02 | 2.05 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 1.92 | 1.94 |
| Air-Cooled with Free Air Discharge Condenser and Fluid Economizer | <29,000 Btu/h | 2.01 | 2.04 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 1.97 | 2 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 1.87 | 1.89 |
| Air-Cooled with Ducted Condenser | <29,000 Btu/h | 1.86 | 1.89 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 1.83 | 1.86 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 1.73 | 1.75 |
| Air-Cooled with Fluid Economizer and Ducted Condenser | <29,000 Btu/h | 1.82 | 1.85 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 1.78 | 1.81 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 1.68 | 1.7 |
| Water-Cooled | <29,000 Btu/h | 2.38 | 2.41 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 2.28 | 2.31 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 2.18 | 2.2 |
| Water-Cooled with Fluid Economizer | <29,000 Btu/h | 2.33 | 2.36 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 2.23 | 2.26 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 2.13 | 2.16 |
| Glycol-Cooled | <29,000 Btu/h | 1.97 | 2 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 1.93 | 1.98 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 1.78 | 1.81 |
| Glycol-Cooled with Fluid Economizer | <29,000 Btu/h | 1.92 | 1.95 |
| | ≥29,000 Btu/h and <65,000 Btu/h | 1.88 | 1.93 |
| | ≥65,000 Btu/h and <760,000 Btu/h | 1.73 | 1.76 |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(g)(1)).

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

| Equipment type | Cooling capacity | Heating type1 | Efficiency level | Compliance date: equipment manufactured on and after . . . |
| --- | --- | --- | --- | --- |
| VRF Multi-Split Air Conditioners (Air-Cooled) | ≥65,000 Btu/h and <135,000 Btu/h | No Heating or Electric Resistance Heating | 11.2 EER | January 1, 2010. |
| | | All Other Types of Heating | 11.0 EER | January 1, 2010. |
| | ≥135,000 Btu/h and <240,000 Btu/h | No Heating or Electric Resistance Heating | 11.0 EER | January 1, 2010. |
| | | All Other Types of Heating | 10.8 EER | January 1, 2010. |
| | ≥240,000 Btu/h and <760,000 Btu/h | No Heating or Electric Resistance Heating | 10.0 EER | January 1, 2010. |
| | | All Other Types of Heating | 9.8 EER | January 1, 2010. |
| VRF Multi-Split Heat Pumps (Air-Cooled) | ≥65,000 Btu/h and <135,000 Btu/h | No Heating or Electric Resistance Heating | 11.0 EER, 3.3 COP | January 1, 2010. |
| | | All Other Types of Heating | 10.8 EER, 3.3 COP | January 1, 2010. |
| | ≥135,000 Btu/h and <240,000 Btu/h | No Heating or Electric Resistance Heating | 10.6 EER, 3.2 COP | January 1, 2010. |
| | | All Other Types of Heating | 10.4 EER, 3.2 COP | January 1, 2010. |
| | ≥240,000 Btu/h and <760,000 Btu/h | No Heating or Electric Resistance Heating | 9.5 EER, 3.2 COP | January 1, 2010. |
| | | All Other Types of Heating | 9.3 EER, 3.2 COP | January 1, 2010. |
| VRF Multi-Split Heat Pumps (Water-Source) | <17,000 Btu/h | Without Heat Recovery | 12.0 EER, 4.2 COP | October 29, 2012. October 29, 2003. |
| | | With Heat Recovery | 11.8 EER 4.2 COP | October 29, 2012. October 29, 2003. |
| | ≥17,000 Btu/h and <65,000 Btu/h | All | 12.0 EER, 4.2 COP | October 29, 2003. |
| | ≥65,000 Btu/h and <135,000 Btu/h | All | 12.0 EER, 4.2 COP | October 29, 2003. |
| | ≥135,000 Btu/h and <760,000 Btu/h | Without Heat Recovery | 10.0 EER, 3.9 COP | October 29, 2013. |
| | | With Heat Recovery | 9.8 EER, 3.9 COP | October 29, 2013. |
| | | | | |
| --- | --- | --- | --- | --- |
| 1 VRF multi-split heat pumps (air-cooled) with heat recovery fall under the category of “All Other Types of Heating” unless they also have electric resistance heating, in which case it falls under the category for “No Heating or Electric Resistance Heating.” | | | | |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(g)(2)).

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

| Equipment type | Size category | Heating type | Minimum efficiency |
| --- | --- | --- | --- |
| VRF Multi-Split Air Conditioners (Air-Cooled) | ≥65,000 and <135,000 Btu/h | All | 15.5 IEER. |
| | ≥135,000 and <240,000 Btu/h | All | 14.9 IEER. |
| | ≥240,000 Btu/h and <760,000 Btu/h | All | 13.9 IEER. |
| VRF Multi-Split Heat Pumps (Air-Cooled) | ≥65,000 and <135,000 Btu/h | Heat Pump without Heat Recovery | 14.6 IEER, 3.3 COP. |
| | | Heat Pump with Heat Recovery | 14.4 IEER, 3.3 COP. |
| | ≥135,000 and <240,000 Btu/h | Heat Pump without Heat Recovery Heat Pump with Heat Recovery | 13.9 IEER, 3.2 COP. 13.7 IEER, 3.2 COP. |
| | ≥240,000 Btu/h and <760,000 Btu/h | Heat Pump without Heat Recovery Heat Pump with Heat Recovery | 12.7 IEER, 3.2 COP. 12.5 IEER, 3.2 COP. |
| VRF Multi-Split Heat Pumps (Water-Source) | <65,000 Btu/h | Heat Pump without Heat Recovery Heat Pump with Heat Recovery | 16.0 IEER, 4.3 COP. 15.8 IEER, 4.3 COP. |
| | ≥65,000 and <135,000 Btu/h | Heat Pump without Heat Recovery Heat Pump with Heat Recovery | 16.0 IEER, 4.3 COP. 15.8 IEER, 4.3 COP. |
| | ≥135,000 and <240,000 Btu/h | Heat Pump without Heat Recovery Heat Pump with Heat Recovery | 14.0 IEER, 4.0 COP. 13.8 IEER, 4.0 COP. |
| | ≥240,000 Btu/h and <760,000 Btu/h | Heat Pump without Heat Recovery Heat Pump with Heat Recovery | 12.0 IEER, 3.9 COP. 11.8 IEER, 3.9 COP. |

(h) Each direct expansion-dedicated outdoor air system manufactured on or after the compliance date listed in table 17 to this [paragraph (h)](/on/2024-09-17/title-10/section-431.97#p-431.97(h)) must meet the applicable minimum energy efficiency standard level(s) set forth in this [paragraph (h)](/on/2024-09-17/title-10/section-431.97#p-431.97(h)).

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

| Equipment category | Subcategory | Efficiency level | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- |
| Direct expansion-dedicated outdoor air systems | (AC)—Air-cooled without ventilation energy recovery systems | ISMRE2 = 3.8 | May 1, 2024. |
| | (AC w/VERS)—Air-cooled with ventilation energy recovery systems | ISMRE2 = 5.0 | May 1, 2024. |
| | (ASHP)—Air-source heat pumps without ventilation energy recovery systems | ISMRE2 = 3.8 ISCOP2 = 2.05 | May 1, 2024. |
| | (ASHP w/VERS)—Air-source heat pumps with ventilation energy recovery systems | ISMRE2 = 5.0 ISCOP2 = 3.20 | May 1, 2024. |
| | (WC)—Water-cooled without ventilation energy recovery systems | ISMRE2 = 4.7 | May 1, 2024. |
| | (WC w/VERS)—Water-cooled with ventilation energy recovery systems | ISMRE2 = 5.1 | May 1, 2024. |
| | (WSHP)—Water-source heat pumps without ventilation energy recovery systems | ISMRE2 = 3.8 ISCOP2 = 2.13 | May 1, 2024. |
| | (WSHP w/VERS)—Water-source heat pumps with ventilation energy recovery systems | ISMRE2 = 4.6 ISCOP2 = 4.04 | May 1, 2024. |

(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)](/on/2024-09-17/title-10/section-431.97#p-431.97(i)) must meet the applicable minimum energy efficiency standard level(s) set forth in this [paragraph (i)](/on/2024-09-17/title-10/section-431.97#p-431.97(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

| Equipment type | Cooling capacity | Subcategory | Minimum efficiency | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- | --- |
| Commercial Package Air Conditioning Equipment | <65,000 Btu/h | Split-System | 13.0 SEER | June 16, 2008.1 |
| Commercial Package Air Conditioning Equipment | <65,000 Btu/h | Single-Package | 14.0 SEER | January 1, 2017.1 |
| Commercial Package Air Conditioning and Heating Equipment | <65,000 Btu/h | Split-System | 14.0 SEER 8.2 HSPF | January 1, 2017.1 |
| Commercial Package Air Conditioning and Heating Equipment | <65,000 Btu/h | Single-Package | 14.0 SEER 8.0 HSPF | January 1, 2017.1 |
| VRF Air Conditioners | <65,000 Btu/h | | 13.0 SEER | June 16, 2008.1 |
| VRF Heat Pumps | <65,000 Btu/h | | 13.0 SEER 7.7 HSPF | June 16, 2008.1 |
| | | | | |
| --- | --- | --- | --- | --- |
| 1 And manufactured before January 1, 2025. For equipment manufactured on or after January 1, 2025, see table 19 to this [paragraph (i)](/on/2024-09-17/title-10/section-431.97#p-431.97(i)) for updated efficiency standards. | | | | |

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

| Equipment type | Cooling capacity | Subcategory | Minimum efficiency | Compliance date: equipment manufactured starting on . . . |
| --- | --- | --- | --- | --- |
| Commercial Package Air Conditioning Equipment | <65,000 Btu/h | Split-System | 13.4 SEER2 | January 1, 2025. |
| Commercial Package Air Conditioning Equipment | <65,000 Btu/h | Single-Package | 13.4 SEER2 | January 1, 2025. |
| Commercial Package Air Conditioning and Heating Equipment | <65,000 Btu/h | Split-System | 14.3 SEER2 7.5 HSPF2 | January 1, 2025. |
| Commercial Package Air Conditioning and Heating Equipment | <65,000 Btu/h | Single-Package | 13.4 SEER2 6.7 HSPF2 | January 1, 2025. |
| Space-Constrained Commercial Package Air Conditioning Equipment | ≤30,000 Btu/h | Split-System | 12.7 SEER2 | January 1, 2025. |
| Space-Constrained Commercial Package Air Conditioning Equipment | ≤30,000 Btu/h | Single-Package | 13.9 SEER2 | January 1, 2025. |
| Space-Constrained Commercial Package Air Conditioning and Heating Equipment | ≤30,000 Btu/h | Split-System | 13.9 SEER2 7.0 HSPF2 | January 1, 2025. |
| Space-Constrained Commercial Package Air Conditioning and Heating Equipment | ≤30,000 Btu/h | Single-Package | 13.9 SEER2 6.7 HSPF2 | January 1, 2025. |
| Small-Duct, High-Velocity Commercial Package Air Conditioning | <65,000 Btu/h | Split-System | 13.0 SEER2 | January 1, 2025. |
| Small-Duct, High-Velocity Commercial Package Air Conditioning and Heating Equipment | <65,000 Btu/h | Split-System | 14.0 SEER2 6.9 HSPF2 | January 1, 2025. |
| VRF Air Conditioners | <65,000 Btu/h | | 13.4 SEER2 | January 1, 2025. |
| VRF Heat Pumps | <65,000 Btu/h | | 13.4 SEER2 7.5 HSPF2 | January 1, 2025. |

[[89 FR 44134](https://www.federalregister.gov/citation/89-FR-44134), May 20, 2024]