(Effective until July 1, 2023)

PDFWAC 51-11C-403239

Table C403.3.2(9) and Table C403.3.2(10)—Minimum efficiency requirements.

Table C403.3.2(9)
Minimum Efficiency Requirements—Air Conditioners and Condensing Units Serving Computer Rooms
Equipment Type
Net Sensible Cooling Capacity
Standard Model
Minimum Net Sensible COPc
Test Procedure
Return Air Dry-Bulb Temperature/Dew-Point Temperature
Class 1
Class 2
Class 3
75°F/52°F
85°F/52°F
95°F/52°F
Air cooled
< 65,000 Btu/h
Downflow unit
 
2.30
 
AHRI 1360
Upflow unit - Ducted
 
2.10
 
Upflow unit - Unducted
2.09
 
 
Horizontal-flow unit
 
 
2.45
≥ 65,000 Btu/h and < 240,000 Btu/h
Downflow unit
 
2.20
 
Upflow unit - Ducted
 
2.05
 
Upflow unit - Unducted
1.99
 
 
Horizontal-flow unit
 
 
2.35
≥ 240,000 Btu/h
Downflow unit
 
2.00
 
Upflow unit - Ducted
 
1.85
 
Upflow unit - Unducted
1.79
 
 
Horizontal-flow unit
 
 
2.15
Water cooled
< 65,000 Btu/h
Downflow unit
 
2.50
 
AHRI 1360
Upflow unit - Ducted
 
2.30
 
Upflow unit - Unducted
2.25
 
 
Horizontal-flow unit
 
 
2.70
≥ 65,000 Btu/h and < 240,000 Btu/h
Downflow unit
 
2.40
 
Upflow unit - Ducted
 
2.20
 
Upflow unit - Unducted
2.15
 
 
Horizontal-flow unit
 
 
2.60
≥ 240,000 Btu/h
Downflow unit
 
2.25
 
Upflow unit - Ducted
 
2.10
 
Upflow unit - Unducted
2.05
 
 
Horizontal-flow unit
 
 
2.45
Water cooled with fluid economizer
< 65,000 Btu/h
Downflow unit
 
2.45
 
AHRI 1360
Upflow unit - Ducted
 
2.25
 
Upflow unit - Unducted
2.20
 
 
Horizontal-flow unit
 
 
2.60
≥ 65,000 Btu/h and < 240,000 Btu/h
Downflow unit
 
2.35
 
Upflow unit - Ducted
 
2.15
 
Upflow unit - Unducted
2.10
 
 
Horizontal-flow unit
 
 
2.55
≥ 240,000 Btu/h
Downflow unit
 
2.20
 
Upflow unit - Ducted
 
2.05
 
Upflow unit - Unducted
2.00
 
 
Horizontal-flow unit
 
 
2.40
Glycol cooled
< 65,000 Btu/h
Downflow unit
 
2.30
 
AHRI 1360
Upflow unit - Ducted
 
2.10
 
Upflow unit - Unducted
2.00
 
 
Horizontal-flow unit
 
 
2.40
≥ 65,000 Btu/h and < 240,000 Btu/h
Downflow unit
 
2.05
 
Upflow unit - Ducted
 
1.85
 
Upflow unit - Unducted
1.85
 
 
Horizontal-flow unit
 
 
2.15
≥ 240,000 Btu/h
Downflow unit
 
1.95
 
Upflow unit - Ducted
 
1.80
 
Upflow unit - Unducted
1.75
 
 
Horizontal-flow unit
 
 
2.10
Glycol cooled with fluid economizer
< 65,000 Btu/h
Downflow unit
 
2.25
 
AHRI 1360
Upflow unit - Ducted
 
2.10
 
Upflow unit - Unducted
2.00
 
 
Horizontal-flow unit
 
 
2.35
≥ 65,000 Btu/h and < 240,000 Btu/h
Downflow unit
 
1.95
 
Upflow unit - Ducted
 
1.80
 
Upflow unit - Unducted
1.75
 
 
Horizontal-flow unit
 
 
2.10
≥ 240,000 Btu/h
Downflow unit
 
1.90
 
Upflow unit - Ducted
 
1.80
 
Upflow unit - Unducted
1.70
 
 
Horizontal-flow unit
 
 
2.10
Table C403.3.2(10)
Minimum Efficiency Requirements—Heat Transfer Equipment
Equipment Type
Subcategory
Minimum
Efficiency
Test
Procedurea
Liquid-to-liquid heat exchangers
Plate type
NR
AHRI 400
NR = No requirement.
a
Chapter 12 of the referenced standard contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure.
Table C403.3.2(11)
Minimum Efficiency Requirements: Electrically Operated DX-DOAS Units, Single-package and Remote Condenser, Without Energy Recovery
EQUIPMENT TYPE
SUBCATEGORY OR RATING CONDITION
MINIMUM EFFICIENCY
TEST PROCEDURE
Air cooled
(dehumidification mode)
 
4.0 ISMRE
AHRI 920
Air source heat pumps
(dehumidification mode)
 
4.0 ISMRE
AHRI 920
Water cooled
(dehumidification mode)
Cooling tower condenser water
4.9 ISMRE
AHRI 920
Chilled water
6.0 ISMRE
Air source heat pump
(heating mode)
 
2.7 ISCOP
AHRI 920
Water source heat pump
(dehumidification mode)
Ground source, closed loop
4.8 ISMRE
AHRI 920
Ground-water source
5.0 ISMRE
Water source
4.0 ISMRE
Water source heat pump
(heating mode)
Ground source, closed loop
2.0 ISCOP
AHRI 920
Ground-water source
3.2 ISCOP
Water source
3.5 ISCOP
Table C403.3.2(12)
Minimum Efficiency Requirements: Electrically Operated DX-DOAS Units, Single-package and Remote Condenser, with Energy Recovery
EQUIPMENT TYPE
SUBCATEGORY OR RATING CONDITION
MINIMUM EFFICIENCY
TEST PROCEDURE
Air cooled
(dehumidification mode)
 
5.2 ISMRE
AHRI 920
Air source heat pumps
(dehumidification mode)
 
5.2 ISMRE
AHRI 920
Water cooled
(dehumidification mode)
Cooling tower condenser water
5.3 ISMRE
AHRI 920
Chilled water
6.6 ISMRE
Air source heat pump
(heating mode)
 
3.3 ISCOP
AHRI 920
Water source heat pump
(dehumidification mode)
Ground source, closed loop
5.2 ISMRE
AHRI 920
Ground-water source
5.8 ISMRE
Water source
4.8 ISMRE
Water source heat pump
(heating mode)
Ground source, closed loop
3.8 ISCOP
AHRI 920
Ground-water source
4.0 ISCOP
Water source
4.8 ISCOP
[Statutory Authority: RCW 19.27A.020, 19.27A.025, 19.27A.160 and chapter 19.27 RCW. WSR 19-24-040, § 51-11C-403239, filed 11/26/19, effective 7/1/20. Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-403239, filed 1/19/16, effective 7/1/16. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-403239, filed 2/1/13, effective 7/1/13.]