PDFWAC 51-11C-403323

Table C403.3.2(3)Water chilling packagesMinimum efficiency requirements.

Table C403.3.2(3)
Water Chilling PackagesMinimum Efficiency Requirementsa,b,e,f
 
Size Category
 
Path A
Path B
Test Procedurec
Equipment Type
Units
FL
IPLV.IP
FL
IPLV.IP
Air-cooled chillers
< 150 tons
EER(Btu/Wh)
≥ 10.100
≥ 13.700
≥ 9.700
≥ 15.800
 
≥ 150 tons
EER(Btu/Wh)
≥ 10.100
≥ 14.000
≥ 9.700
≥ 16.100
 
Air cooled without condenser, electrically operated
All capacities
EER(Btu/Wh)
Air-cooled chillers without condensers shall be rated with matching condensers and comply with the air-cooled chiller efficiency requirements
 
Water cooled, electrically operated, positive displacement
< 75 tons
kW/ton
≤ 0.750
≤ 0.600
≤ 0.780
≤ 0.500
 
≥ 75 tons and
< 150 tons
kW/ton
≤ 0.720
≤ 0.560
≤ 0.750
≤ 0.490
AHRI 550/590
≥ 150 tons and
< 300 tons
kW/ton
≤ 0.660
≤ 0.540
≤ 0.680
≤ 0.440
 
≥ 300 tons and
< 600 tons
kW/ton
≤ 0.610
≤ 0.520
≤ 0.625
≤ 0.410
 
 
≥ 600 tons
kW/ton
≤ 0.560
≤ 0.500
≤ 0.585
≤ 0.380
 
Water cooled, electrically operated, centrifugal
< 150 tons
kW/ton
≤ 0.610
≤ 0.550
≤ 0.695
≤ 0.440
 
≥ 150 tons and
< 300 tons
kW/ton
≤ 0.610
≤ 0.550
≤ 0.695
≤ 0.400
 
≥ 300 tons and
< 400 tons
kW/ton
≤ 0.560
≤ 0.520
≤ 0.595
≤ 0.390
 
≥ 400 tons and < 600 tons
kW/ton
≤ 0.560
≤ 0.500
≤ 0.585
≤ 0.380
 
≥ 600 tons
kW/ton
≤ 0.560
≤ 0.500
≤ 0.585
≤ 0.380
 
Air cooled absorption, single effect
All capacities
COP(W/W)
≥ 0.600
NR
NAd
NAd
 
Water cooled absorption, single effect
All capacities
COP(W/W)
≥ 0.700
NR
NAd
NAd
AHRI 560
Absorption double effect, indirect fired
All capacities
COP(W/W)
≥ 1.000
≥ 1.050
NAd
NAd
Absorption double effect, direct fired
All capacities
COP(W/W)
≥ 1.000
≥ 1.000
NAd
NAd
 
For SI: 1 ton = 3517 W, 1 British thermal unit per hour = 0.2931 W, °C = [(°F) - 32]/1.8.
 
NR = No requirement.
 
a
Chapter 6 contains a complete specification of the referenced standards, which includes test procedures, including the referenced year version of the test procedure.
 
b
The requirements for centrifugal chiller shall be adjusted for nonstandard rating conditions per Section C403.3.2.4 and are applicable only for the range of conditions listed there. The requirements for air-cooled, water-cooled positive displacement and absorption chillers are at standard rating conditions defined in the referenced test procedure.
 
c
Both the full load and IPLV.IP requirements must be met or exceeded to comply with this standard. When there is a Path B, compliance can be with either Path A or Path B for any application.
 
d
NA means the requirements are not applicable for Path B and only Path A can be used for compliance.
 
e
FL is the full-load performance requirements, and IPLV.IP is for the part-load performance requirements.
 
f
This table is a replica of ASHRAE 90.1 Table 6.8.1-3 Water-Chilling PackagesMinimum Efficiency Requirements.
[Statutory Authority: RCW 19.27A.045 and chapter 19.27A RCW. WSR 24-16-145, § 51-11C-403323, filed 8/7/24, effective 9/7/24. Statutory Authority: RCW 19.27A.020, 19.27A.025, 19.27A.160 and chapters 19.27A and 19.27 RCW. WSR 22-14-091, 23-12-101, and 23-20-021, § 51-11C-403323, filed 7/1/22, 6/7/23, and 9/25/23, effective 3/15/24.]
Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency.