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Continental Single Phase Chillers
UniPac™
Electrical Data
USAC Packaged Air Cooled Chillers
Total Unit Compressor Motor Data Condenser Fan Motor Data
Standard Unit Optional Low Ambient Unit
Single Phase/Single
Speed Motor
Single Phase/Speed
Control
Model
MCA
Max
Fuse
Rec.
Fuse
Qty
HP
Each
RLA
Each
LRA
Each
MCC
Each
Qty
HP
Each
FLA
Each
Qty
HP
Each
RLA
Each
Qty
HP
Each
RLA
Each
USAC-3
30 45 35 1 3 18.4 95 25.8 1 0.75 5.3 _ _ _ 1 0.75 5.3
USAC-4
33 55 40 1 4 22.1 137 31 1 0.75 5.3 _ _ _ 1 0.75 5.3
USAC-5
45 77 55 1 5 32.1 148 45 1 0.75 5.3 _ _ _ 1 0.75 5.3
USAC-8
55 77 60 2 4 22.1 137 31 1 0.75 5.3 _ _ _ 1 0.75 5.3
USAC-10
83 115 90 2 5 32.1 148 45 2 0.75 5.3 1 0.75 5.3 1 0.75 5.3
USAC-12
83 105 88 3 4 22.1 137 31 2 0.75 5.3 1 0.75 5.6 1 0.75 5.3
USAC-15
115 150 125 3 5 32.1 148 45 2 0.75 5.3 1 0.75 5.3 1 0.75 5.3
USAC-20
150 180 160 4 5 32.1 148 45 2 0.75 5.3 1 0.75 5.3 1 0.75 5.3
USAC-25
185 215 200 5 5 32.1 148 45 2 1.5 6.6 1 1.5 6.6 1 1.5 6.6
USAC-30
220 250 230 6 5 32.1 148 45 2 1.5 6.6 1 1.5 6.6 1 1.5 6.6
USAC-40
290 325 300 8 5 32.1 148 45 4 0.75 5.3 2 0.75 5.3 2 0.75 5.3
USAC-50
350 390 370 10 5 32.1 148 45 4 1.5 6.6 2 1.5 6.6 2 1.5 6.6
USAC-60
420 450 430 12 5 32.1 148 45 4 1.5 6.6 2 1.5 6.6 2 1.5 6.6
Electrical Data
USWC Packaged Water Cooled Chillers
Total Unit Compressor Motor Data
Model
MCA Max Fuse Rec. Fuse Qty HP Each RLA Each LRA Each MCC Each
USWC-3
25 40 30 1 3 18.4 95 25.8
USWC-4
28 50 35 1 4 22.1 137 31
USWC-5
40 72 50 1 5 32.1 148 45
USWC-8
50 72 55 2 4 22.1 137 31
USWC-10
72 104 80 2 5 32.1 148 45
USWC-12
72 95 77 3 4 22.1 137 31
USWC-15
104 106 115 3 5 32.1 148 45
USWC-20
136 169 145 4 5 32.1 148 45
USWC-25
169 200 175 5 5 32.1 148 45
USWC-30
200 233 200 6 5 32.1 148 45
USWC-40
265 297 275 8 5 32.1 148 45
USWC-50
330 360 360 10 5 32.1 148 45
USWC-60
395 425 400 12 5 32.1 148 45
Notes:
1. All units have across-the-line start.
2. RLA (rated load amps) rated in accordance with ARI Standard.
3. MCA (minimum circuit amps) equal 125% of the RLA for the largest motor in the circuit plus 100% of the RLA for all other motors in the circuit per N.E.C.
4. Based on copper conductors with 75° C insulation per N.E.C. Table 310-16.
5. Max fuse size is based on 225% of the RLA for the largest motor in the circuit plus 100% of the RLA for all other motors in the circuit per N.E.C. This is the
largest fuse allowed per N.E.C. A smaller fuse is often recommended based on the unit application and ambient temperature.
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