WAC 51-11C-403323
WAC 51-11C-403323. Table C403.3.2(3) — Water chilling packages — Minimum efficiency requirements
Table C403.3.2(3)
Water Chilling Packages — Minimum Efficiency Requirements a,b,e,f
Size Category Path A Path B Test Procedure c 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 NA d NA d Water cooled absorption, single effect All capacities COP(W/W) ≥ 0.700 NR NA d NA d AHRI 560 Absorption double effect, indirect fired All capacities COP(W/W) ≥ 1.000 ≥ 1.050 NA d NA d Absorption double effect, direct fired All capacities COP(W/W) ≥ 1.000 ≥ 1.000 NA d NA d
Size Category
Path A
Path B
Test Procedure c
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
NA d
NA d
Water cooled absorption, single effect
All capacities
COP(W/W)
≥ 0.700
NR
NA d
NA d
AHRI 560
Absorption double effect, indirect fired
All capacities
COP(W/W)
≥ 1.000
≥ 1.050
NA d
NA d
Absorption double effect, direct fired
All capacities
COP(W/W)
≥ 1.000
≥ 1.000
NA d
NA d
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 Packages — Minimum Efficiency Requirements.