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Table 19.
Electrical service sizing data — motors — 40 to 80 tons
Model
Tonnage
Number
Nameplate
208-230/60/3
SCWMN04LF
208-230/60/3
SCWMN040F
40
SCWMN04L4
SCWMN0404
208-230/60/3
SCWMN05LF
208-230/60/3
SCWMN050F
50
SCWMN05L4
SCWMN0504
208-230/60/3
SCWMN06LF
208-230/60/3
SCWMN060F
60
SCWMN06L4
SCWMN0604
208-230/60/3
SCWMN07LF
208-230/60/3
SCWMN070F
70
SCWMN07L4
SCWMN0704
208-230/60/3
SCWMN08LF
208-230/60/3
SCWMN080F
80
SCWMN08L4
SCWMN0804
Notes:
1.
MCA: Minimum Circuit Ampacity is 125% of the largest compressor RLA or Drive input current, plus 100% of the other compressor (s) RLA,
plus the sum of the condenser fan RLA, plus any other load rated at 1 AMP or more.
2.
Maximum Breaker Overcurrent Protection (MOP): 225% of the largest compressor RLA or VSD drive Input, plus 100% of the other compressor
(s) RLA, plus the sum of the condenser fan Motor/Drive FLA, plus any other load rated at 1 AMP or more.
3.
Recommended disconnect switch: 110% to 115% of the sum of the RLA of the compressors, VSD drive input, fan motor/drive and controls FLA.
4.
RLA: Rated in accordance with UL standard 1995
5.
Local codes may take precedence.
6.
Fix speed compressor are across the line starting, the VSD compressors are controlled by VSD drive. Compressors will never start
simultaneously.
7.
Voltage utilization range is ±10 percent.
Table 20.
Electrical data — 40 to 80 tons
Tonnage
Model Number
SCWMN04LF
SCWMN040F
40
SCWMN04L4
SCWMN0404
SCWMN05LF
SCWMN050F
50
SCWMN05L4
SCWMN0504
PKG-SVX027C-EN
Unit Wiring
Voltage
Voltage
Range
187 - 253
186.6
187-253
221.6
460/60/3
414 - 506
460/60/3
414-506
128.2
187 - 253
233.4
187-253
268.4
460/60/3
414 - 506
113.2
460/60/3
414-506
150.7
187 - 253
260.9
187-253
295.9
460/60/3
414 - 506
123.4
460/60/3
414-506
160.9
187-253
321.8
187-253
356.9
460/60/3
414-506
154.2
460/60/3
414-506
191.7
187-253
335.3
187-253
370.3
460/60/3
414-506
156.2
460/60/3
414-506
193.7
Nameplate Voltage
208-230/60/3
208-230/60/3
460/60/3
460/60/3
208-230/60/3
208-230/60/3
460/60/3
460/60/3
Compressor (EA)
Fixed Speed
MCA MOP Disc Qty
RLA LRA Qty
250
200
1
55.77 340
300
225
1
55.77 340
90.7
125
100
1
23.72 110
200
125
1
23.72 110
300
250
2
51.28 300
350
300
2
51.28 300
150
125
2
23.1
200
150
2
23.1
300
300
2
55.77 340
375
300
2
55.77 340
150
150
2
23.72 110
225
175
2
23.72 110
375
350
3
51.28 300
450
375
3
51.28 300
175
175
3
23.1
250
200
3
23.1
400
375
3
55.77 340
450
400
3
55.77 340
175
175
3
23.72 110
250
200
3
23.72 110
Compressor (EA)
Fixed Speed
Qty
RLA LRA Qty Max Input (A) Qty kW
1
55.77 340
1
55.77 340
1
23.72 110
1
23.72 110
2
51.28 300
2
51.28 300
2
23.1
150
2
23.1
150
I I n n s s t t a a l l l l a a t t i i o o n n - - E E l l e e c c t t r r i i c c a a l l
Motor Data
Fan (EA)
Variable Speed
Max
Qty kW
Input (A)
1
56
3
1
84
3
1
30
3
1
60
3
1
56
3
1
84
3
150
1
30
3
150
1
60
3
1
56
4
1
84
4
1
30
4
1
60
4
1
56
5
1
84
5
150
1
30
5
150
1
60
5
1
56
5
1
84
5
1
30
5
1
60
5
Fan (EA)
Variable Speed
VSD
1
56
3
0.5
1
84
3
6.15 18.6
1
30
3
0.5
1
60
3
6.15
1
56
3
0.5
1
84
3
6.15 18.6
1
30
3
0.5
1
60
3
6.15
VSD
FLA
6.15 18.6
6.15 18.6
6.15
9
6.15
9
6.15 18.6
6.15 18.6
6.15
9
6.15
9
6.15 18.6
6.15 18.6
6.15
9
6.15
9
6.15 18.6
6.15 18.6
6.15
9
6.15
9
6.15 18.6
6.15 18.6
6.15
9
6.15
9
FLA
18.6
9
9
18.6
9
9
43
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