036-21371-001-B-0203
18
Unitary Products Group
TABLE 16: HEAT PUMP WITH ELECTRIC HEAT
1
Nominal
Heater
KW
2
Power Supply
Heater
FLA
Total Unit
Ampacity
AMPS
Max, Fuse
Size,
3
AMPS
Min. Wire
Size,
4
AWG
FA090
10
208-3-60
20.8
31.3
35
8
230-3-60
24.1
35.1
40
8
460-3-60
12.0
17.6
20
12
16
208-3-60
33.4
46.9
50
8
230-3-60
38.5
53.1
60
6
460-3-60
19.2
26.7
30
10
26
208-3-60
54.2
73
80
4
230-3-60
62.5
83.2
90
4
460-3-60
31.3
41.7
45
8
36
208-3-60
75.1
99
110
3
230-3-60
86.6
113.3
125
2
460-3-60
43.3
56.7
60
6
1
Unit with an electric heat accessory will always be wired for a single power supply.
2
Refer to the Heating Capacity table for the actual KW and MBH ratings of each heater at the different voltages.
3
Inverse time circuit breakers may be used in lieu of dual element, time delay fuses.
4
Based on three, insulated copper conductors in steel conduit: 60ºC wire when the total unit ampacity is below 100 amps; 75ºC
wire when the total unit ampacity is 100 amps and above.
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