Trane UniTrane Installation, Operation And Maintenance Manual page 62

Installation - Electrical
MCA = 1.25 x (heater amps + all motor FLAs)
MOP = (2.25 x largest motor FLA) + second motor FLA +
heater amps (if applicable)
Select a standard fuse equal to or less than the MOP . The
selected fuse must be larger than the MCA.
Standard fuse sizes are: 15, 20, 25, 30, 35, 40, 45, 50, 60
amps
Fan-coil electric heat MBh = (heater kW) (3.413)
Table 33. Force-Flo single-stage, max kW electric heat
Unit
Voltage # Wires
Size
208/60/1
240/60/1
277/60/1
208/60/3
02 240/60/3
480/60/3
220-240/50/1
220-240/50/3
380-415/50/3
208/60/1
240/60/1
277/60/1
208/60/3
03 240/60/3
480/60/3
220-240/50/1
220-240/50/3
380-415/50/3
208/60/1
240/60/1
277/60/1
208/60/3
04 240/60/3
480/60/3
220-240/50/1
220-240/50/3
380-415/50/3
62
Heater amps/
Heater kW
ph
2 2.25 10.90
2 3.00 12.50
2 3.00 10.90
3 2.25 6.30
3 3.00 7.30
4 3.00 3.70
2 3.00 12.50
3 3.00 7.30
4 3.00 4.20
2 4.50 21.70
2 6.00 25.00
2 6.00 21.70
3 4.50 12.60
3 6.00 14.50
4 6.00 7.30
2 6.00 25.00
3 6.00 14.50
4 6.00 8.40
2 5.70 27.50
2 7.50 31.30
2 7.50 27.10
3 5.70 15.90
3 7.50 18.10
4 7.50 9.10
2 7.50 31.30
3 7.50 18.10
4 7.50 10.50
Table 33. Force-Flo single-stage, max kW electric heat
208/60/1
240/60/1
277/60/1
208/60/3
06 240/60/3
480/60/3
220-240/50/1
220-240/50/3
380-415/50/3
2 7.90 38.00
2 10.50 43.80
2 10.50 38.00
3 7.90 21.90
3 10.50 25.30
4 10.50 12.70
2 10.50 43.80
3 10.50 25.30
4 10.50 14.70
UNT-SVX07J-EN