Environmental Engineering Reference
In-Depth Information
TABLE 9.3
Water Chilling Packages - Minimum Eficiency Requirements
Minimum Eficiency
Path A
Path B
Test
Procedure
Equipment Type
Size Category
Units
Full Load
IPLV
Full Load
IPLV
Air cooled chillers with condenser,
electrically operated
<528 kW
COP
2.931
3.664
NA
NA
ARI 550/590
≥528 kW
COP
2.931
3.737
NA
NA
Air cooled without condenser, electrical
operated
All capacities
COP
Condenser-less units shall be rated with matched
condensers
ARI 550/590
Water-cooled, electrically operated,
positive displacement (reciprocating)
All capacities
COP
Reciprocating units required to comply with
water-cooled positive displacement requirements
ARI 550/590
Water-cooled electrically operated,
positive displacement
<264 kW
COP
4.509
5.583
4.396
5.862
ARI 550/590
≥264 kW and 528 kW
COP
4.538
5.719
4.452
6.002
≥528 kW and <1055 kW
COP
5.172
6.064
4.898
6.513
≥1055 kW
COP
5.673
6.513
5.504
7.178
Water-cooled electrically operated,
centrifugal
<528 kW
COP
5.547
5.901
5.504
7.816
ARI 550/590
≥528 kW and <1055 kW
COP
5.547
5.901
5.504
7.816
≥1055 kW and <2110 kW
COP
6.106
6.406
5.862
8.792
≥2110 kW
COP
6.170
6.525
5.961
8.792
Air cooled absorption single effect
All capacities
COP
0.600
NR
NA
NA
ARI 560
Water-cooled absorption single effect
All capacities
COP
0.700
NR
NA
NA
Absorption double effect indirect-ired
All capacities
COP
1.000
1.050
NA
NA
Absorption double effect direct ired
All capacities
COP
1.000
1.000
NA
NA
Note:
Where there is a Column A and Column B requirement, either column can be used for compliance, but both the full and IPLV values shall be com-
plied, with Path A intended for applications where signiicant operating time is expected at full load and design ambient and Path B intended for
applications with signiicant operating time at part load. All Path B machines shall be equipped with demand-limiting capable controls; NA means
that this requirement is not applicable and cannot be used for compliance; NR means that for this category there are no minimum requirements
allowed to be used in heat recovery applications.
