Selection Procedures; Number Of Compressors Per Unit; Scwf/Siwf Compressor Electrical Data; Fan Without Vfd Data - Trane IntelliPak Signature Series Installation, Owner, And Diagnostic Manual

Selection Procedures

RLA = Rated Load Amps
Compressor LRA = Locked Rotor Amps
Fan Motor LRA = Locked Rotor Amps,
N.E.C. Table 430 - 150
FLA = Full Load Amps, N.E.C.
Table 430 - 150
Voltage utilization range is ±10 percent
Determination of minimum circuit
ampacity (MCA).
MCA = 1.25 x largest motor amps/VFD
amps (FLA or RLA) + the sum of the
remaining motor amps.
Determination of maximum fuse size
(MFS) and maximum circuit breaker size
(MCB).
MFS and MCB = 2.25 x largest motor
amps (FLA or RLA) + the sum of the
remaining motor amps.
For units with the dual power option,
there are two electrical circuits that need
calculations using the formulas above:
circuit #1 - fans
circuit #2 - compressors
If the rating value determined does not
equal a standard current rating of over
current protective device, use the next
lower standard rating for the marked
maximum rating.
SCXF-SVX01B-EN
Installation
Table I-ER-1. Number of Compressors per Unit
SCRF/SIRF 20 25 - 29
SCWF/SIWF 20 - 25 29 - 32
10 2 1
15 - 1
Table I-ER-2. SCWF/SIWF Compressor Electrical Data
200V
HP RLA LRA
10 33 269
15 46 409
Table I-ER-3. SCRF/SIRF Compressor Electrical Data
200V
HP RLA LRA
10 36.8 269
15 61.1 409
Table I-ER-4. Fan without VFD Data
200V
HP FLA LRA
5 16.1 105
7.5 25.0 152
10 32.9 193
15 44.8 290
20 61.0 373
25 74.0 469
30 87.0 552
40 113.0 718
50 NA NA
Table I-ER-5. Fan with VFD
HP FLA
7.5 29.4
10 37.9
15 51.4
20 66.5
25 91.4
30 91.4
40 116.0
50 NA
Table I-ER-6. Electric Heat - Single Stage
SCWF SCRF
Size Size
20 -
22 -
25 20
29 25
32 29
35 30
38 35
42 -
46 40
52 -
58 50
65 -
72 -
80 60
Note: Electric heat amperage should not be considered when determining minimum circuit ampacity. The current of the
unit in the heating mode will not exceed the current of the unit in the cooling mode.
Electrical
Requirements
30 - 35 40 50
35 - 38 42 - 46 52 - 58
3 2
- 1 3
460V 575V
RLA LRA RLA
14.5 117 11.5
20.5 178 16.5
460V 575V
RLA LRA RLA
16.3 117 13.2
26 178 21.5
460V 575V
FLA LRA FLA
6.7 46 5.4
10.8 66 8.2
14.2 84 11.4
20.3 126 16.2
25.0 162 20.0
31.0 204 24.2
36.0 240 28.6
47.8 312 38.0
62.0 390 49.2
200V
LRA FLA
152 13.9
193 17.6
290 24.8
373 31.9
469 44
552 44
718 57.1
NA 68.3
Heat 200V
Kw Amps
18 50
18 50
18 50
23 63.8
23 63.8
27 75
27 75
31.5 87.4
31.5 87.4
39 108.3
39 108.3
48 133.2
48 133.2
48 133.2
60
65 - 72 80
- 1 -
3 4
LRA
94
143
LRA
94
143
LRA
37
54
66
102
132
162
192
246
312
460V
LRA
66
84
126
162
204
240
312
390
460V
Amps
21.7
21.7
21.7
27.7
27.7
32.5
32.5
37.9
37.9
46.9
46.9
57.7
57.7
57.7
27