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Table 7: Wire and Fuse/Circuit Breaker Selection
Model
LRA
(A)
UCQ60A*D
64
UCQ90A*D
101
UCQ140A*D
147
UCQ180A*D
197
UCQ060A*L
64
UCQ090A*L
101
UCQ140A*L
147
UCQ180A*L
197
UCQ240A*L
215
UCQ280A*L
260
UCQ320A*L
158
UCQ360A*L
197
UCQ400A*L
147
UCQ520A*L
197
UCQ570A*L
260
UCQ710A*L
215
UCQ870A*L
260
UCQ940A*L
215
MOC: Maximum Operating
Current
LRA:
Locked Rotor Current
Formula:
1.
MCA = (1.25*MOC compressor 1 + (Qty of compressor – 1)* MOC compressor + (Qty of fan)* FLA of
fan
2.
MOCP = (2.25* MOC compressor 1 + (Qty of compressor – 1)* MOC compressor + (Qty of fan)* FLA of
fan
Phase Sequence for Correct Compression
Scroll compressor require proper phase sequence to secure correct rotation
direction and therefore compression. The phase sequence has to be secured
between network to the compressor.
Correct Fan Motor Rotation
Verify correct rotation of fan motor by ensuring cold air discharged from unit.
Swap any two live wires on the incoming supply to the fan contactors if fan motor
reverse direction.
Issue: O-WCP16-SEP21-2
Compressor
RC
MOC
Qty
(A)
(A)
6.4
11.8
1
9.8
16.2
1
15.8
28
1
20.7
36
1
6.4
11.8
1
9.8
16.2
1
15.8
28
1
20.7
36
1
24.9
49
1
31
56
1
16.7
31
2
20.7
36
2
15.8
28
3
20.7
36
3
31
56
2
24.9
49
3
31
56
3
24.9
49
4
RC:
Rated Current
FLA:
Full Load Current
HP:
Horsepower
Fan Motor
FLA
HP
Qty
(A)
2.7
1.5
1
3.5
2
1
4.8
3
1
4.8
3
1
3.5
2
1
4.8
3
1
6.3
4
1
6.3
4
1
10.7
7.5
1
10.7
7.5
1
14.2
10
1
20.5
15
1
20.5
15
1
20.5
15
1
20.5
15
1
14.2
10
2
20.5
15
2
20.5
15
2
Power Supply
(V-Ph-
MCA
Hz)
(A)
17
24
40
50
18
25
41
51
380~415V
72
-3 Ph
81
-50Hz
84
102
112
138
147
188
223
249
MCA: Minimum Circuit Amps
MOCP: Maximum Over
Current Protection
Page 32
MOCP
(A)
29
40
68
86
30
41
69
87
121
137
115
138
140
174
203
237
279
298
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