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PDFWAC 51-11C-403237

Table C403.2.3(7)Minimum efficiency requirementsWater chilling packages.

Table C403.2.3(7)
Minimum Efficiency RequirementsWater Chilling Packagesa
Equipment Type
Size Category
Units
As of 1/1/2015b
Test Procedurec
Path A
Path B
Full Load
IPLV
Full Load
IPLV
Air-cooled chillers
< 150 tons
EER
≥ 10.100
≥ 13.700
≥ 9.700
≥ 15.800
 
≥ 150 tons
EER
≥ 10.100
≥ 14.000
≥ 9.700
≥ 16.100
 
Air cooled without condenser, electrically operated
All capacities
EER
Air-cooled chillers without condensers shall be rated with matching condensers and comply with the air-cooled chiller efficiency requirements
 
Water cooled, electrically operated, reciprocating
All capacities
kW/ton
Reciprocating units shall comply with water cooled positive displacement 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
 
≥ 300 tons and
< 400 tons
kW/ton
≤ 0.560
≤ 0.520
≤ 0.595
≤ 0.390
 
≥ 400 tons
kW/ton
≤ 0.560
≤ 0.500
≤ 0.585
≤ 0.380
 
Air cooled, absorption single effect
All capacities
COP
≥ 0.600
NR
NA
NA
 
Water cooled, absorption single effect
All capacities
COP
≥ 0.700
NR
NA
NA
AHRI 560
Absorption double effect, indirect fired
All capacities
COP
≥ 1.000
≥ 1.050
NA
NA
Absorption double effect, direct fired
All capacities
COP
≥ 1.000
≥ 1.000
NA
NA
 
For SI:
1 ton = 3517 W, 1 British thermal unit per hour = 0.2931 W, °C = [(°F) - 32]/1.8.
 
NA = Not applicable, not to be used for compliance;
 
NR = No requirement.
a
The centrifugal chiller equipment requirements, after adjustment in accordance with Section C403.2.3.1 or Section C403.2.3.2, do not apply to chillers used in low-temperature applications where the design leaving fluid temperature is less than 36ºF. The requirements do not apply to positive displacement chillers with leaving fluid temperatures less than or equal to 32ºF. The requirements do not apply to absorption chillers with design leaving fluid temperatures less than 40ºF.
b
Compliance with this standard can be obtained by meeting the minimum requirements of Path A or B. However, both the full load and IPLV shall be met to fulfill the requirements of Path A or B.
c
Chapter 6 of the referenced standard contains a complete specification of the referenced test procedure, including the referenced year version of the test procedure.
[Statutory Authority: RCW 19.27A.025, 19.27A.160, and 19.27.074. WSR 16-03-072, § 51-11C-403237, 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-403237, filed 2/1/13, effective 7/1/13.]
Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency.
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