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32 SSP-PRC001-EN
Table 33. Unit Wiring - Heat Pumps
Tons Unit Model No.
Unit Operating Voltage
Range
Minimum Circuit
Ampacity
Maximum Fuse Size or
Maximum Circuit
Breaker
(i)
(i)
HACR type circuit breaker per NEC.
7½
TWA090A3 187-253 34.5 50
TWA090A4 414-506 18.1 25
TWA090AW 518-632 14.5 20
10
TWA120A3 187-253 48.1 70
TWA120A4 414-506 23.3 35
TWA120AW 518-632 18.8 25
15
TWA180B3 187-253 62.7 80
TWA180B4 414-506 32.9 45
TWA180BW 518-632 26.3 35
20
TWA240B3 187-253 87.8 100
TWA240B4 414-506 42.5 50
TWA240BW 518-632 34.2 45
Table 34. Electrical Characteristics - Compressor and Condenser Fan Motors - 60 Cycle - Heat Pumps
Tons Unit Model No.
Compressor Fan Motor Condenser Fan Motor
Amps Amps
No. Volts Phase
FLA
(ea.)
LRA
(ea.) No. Volts Phase
FLA
(ea.)
LRA
(ea.)
7½
TWA090A3 1 208-230 3 25.1 182 1 208-230 1 3.1 8.1
TWA090A4 1 460 3 13.2 94.9 1 460 1 1.6 3.7
TWA090AW 1 575 3 10.6 70 1 575 1 1.2 3
10
TWA120A3 1 208-230 3 33.7 278 1 208-230 1 6 17
TWA120A4 1 460 3 16.5 124 1 460 1 2.7 7
TWA120AW 1 575 3 13.4 92 1 575 1 2 5.7
15
TWA180B3 2 208-230 3 25.1 182 2 208-230 1 3.1 8.1
TWA180B4 2 460 3 13.2 94.9 2 460 1 1.6 3.7
TWA180BW 2 575 3 10.6 70 2 575 1 1.2 3
20
TWA240B3 2 208-230 3 33.7 278 2 208-230 1 6 17
TWA240B4 2 460 3 16.5 124 2 460 1 2.7 7
TWA240BW 2 575 3 13.4 92 2 575 1 2 5.7
Electrical Data