Trane UniTrane - Page 62

Installation - Electrical
62 UNT-SVX07J-EN
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
Size
Voltage # Wires Heater kW
Heater amps/
ph
02
208/60/1 2 2.25 10.90
240/60/1 2 3.00 12.50
277/60/1 2 3.00 10.90
208/60/3 3 2.25 6.30
240/60/3 3 3.00 7.30
480/60/3 4 3.00 3.70
220-240/50/1 2 3.00 12.50
220-240/50/3 3 3.00 7.30
380-415/50/3 4 3.00 4.20
03
208/60/1 2 4.50 21.70
240/60/1 2 6.00 25.00
277/60/1 2 6.00 21.70
208/60/3 3 4.50 12.60
240/60/3 3 6.00 14.50
480/60/3 4 6.00 7.30
220-240/50/1 2 6.00 25.00
220-240/50/3 3 6.00 14.50
380-415/50/3 4 6.00 8.40
04
208/60/1 2 5.70 27.50
240/60/1 2 7.50 31.30
277/60/1 2 7.50 27.10
208/60/3 3 5.70 15.90
240/60/3 3 7.50 18.10
480/60/3 4 7.50 9.10
220-240/50/1 2 7.50 31.30
220-240/50/3 3 7.50 18.10
380-415/50/3 4 7.50 10.50
06
208/60/1 2 7.90 38.00
240/60/1 2 10.50 43.80
277/60/1 2 10.50 38.00
208/60/3 3 7.90 21.90
240/60/3 3 10.50 25.30
480/60/3 4 10.50 12.70
220-240/50/1 2 10.50 43.80
220-240/50/3 3 10.50 25.30
380-415/50/3 4 10.50 14.70
Table 33. Force-Flo single-stage, max kW electric heat