(Effective July 1, 2023)

PDFWAC 51-11C-403322

Table C403.3.2(2)Electrically operated air-cooled unitary heat pumpsMinimum efficiency requirements.

Table C403.3.2(2)
Electrically Operated Air-Cooled Unitary Heat PumpsMinimum Efficiency Requirements
Equipment Type
Size Category
Heating Section Type
Subcategory or Rating Condition
Minimum Efficiency
Test Procedurea
Air cooled (cooling mode)
< 65,000 Btu/h
All
Split System, three phase and applications outside U.S. single phaseb
14.3 SEER2
AHRI 201/240-2023
Single Package, three phase and applications outside U.S. single phaseb
13.4 SEER2
Space constrained, air cooled
≤ 30,000 Btu/h
All
Split System, three phase and applications outside U.S. single phaseb
11.7 SEER2
Single Package, three phase and applications outside U.S. single phaseb
11.7 SEER2
Single duct high velocity, air cooled (cooling mode)
≤ 65,000 Btu/h
All
Split System, three phase and applications outside U.S. single phaseb
12.0 SEER2
Air cooled (cooling mode)
≥ 65,000 Btu/h and
< 135,000 Btu/h
Electric Resistance
(or None)
Split System and Single Package
11.0 EER
14.1 IEER
AHRI 340/360
All other
Split System and Single Package
10.8 EER
13.9 IEER
≥ 135,000 Btu/h and
< 240,000 Btu/h
Electric Resistance
(or None)
Split System and Single Package
10.6 EER
13.5 IEER
All other
Split System and Single Package
10.4 EER
13.3 IEER
≥ 240,000 Btu/h
Electric Resistance
(or None)
Split System and Single Package
9.5 EER
12.5 IEER
All other
Split System and Single Package
9.3 EER
12.3 IEER
Air cooled (heating mode)
< 65,000 Btu/hb
-
Split System, three phase and applications outside U.S. single phaseb
7.5 HSPF
AHRI 201/240-2023
-
Single Package, three phase and applications outside U.S. single phaseb
6.7 HSPF
Space constrained, air cooled (heating mode)
≤ 30,000 Btu/h
-
Split System, three phase and applications outside U.S. single phaseb
6.3 HSPF
-
Single Package, three phase and applications outside U.S. single phaseb
6.3 HSPF
Small-duct high velocity air cooled (heating mode)
< 65,000 Btu/h
-
Split System, three phase and applications outside U.S. single phaseb
6.1 HSPF
Air cooled (heating mode)
≥ 65,000 Btu/h and
< 135,000 Btu/h (cooling capacity)
-
47ºF db/43ºF wb Outdoor Air
3.40 COPH
AHRI 340/360
17ºF db/15ºF wb Outdoor Air
2.25 COPH
≥ 135,000 Btu/h and
< 240,000 Btu/h (cooling capacity)
-
47ºF db/43ºF wb Outdoor Air
3.30 COPH
17ºF db/15ºF wb Outdoor Air
2.05 COPH
≥ 240,000 Btu/h (cooling capacity)
 
47ºF db/43ºF wb Outdoor Air
3.20 COPH
 
17ºF db/15ºF wb Outdoor Air
2.05 COPH
For SI: 1 British thermal unit per hour = 0.2931 W, °C = [(°F) - 32]/1.8.
 
a
Chapter 6 contains a complete specification of the referenced standards, which include test procedures, including the reference year version of the test procedure.
 
b
Single-phase, U.S. air-cooled heat pumps less than 65,000 Btu/h are regulated as consumer products by the U.S. Department of Energy Code of Federal Regulations DOE 10 C.F.R. 430. SEER, SEER2, and HSPF values for single-phase products are set by the U.S. Department of Energy.
 
c
DOE 10 C.F.R. 430 Subpart B Appendix MI includes the test procedure updates effective 1/1/2023 that will be incorporated into AHRI 210/240-2023.
 
d
This table is a replica of ASHRAE 90.1 Table 6.8.1-2 Electrically Operated Air-Cooled Unitary Heat PumpsMinimum Efficiency Requirements.
[Statutory Authority: RCW 19.27A.020, 19.27A.025, 19.27A.160 and chapters 19.27A and 19.27 RCW. WSR 22-14-091, § 51-11C-403322, filed 7/1/22, effective 7/1/23.]