Lennox LGM Series - Electrical Data - 25 Ton; Voltage & Compressor Data (25 Ton); Fan & Blower Data (25 Ton); Overcurrent Protection & Ampacity (25 Ton)

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ELECTRICAL DATA 25 TON
Model No. LGM300U4
1
Voltage - 60Hz 208/230V-3ph 460V-3ph 575V-3ph
Compressor 1 Rated Load Amps   7.1
Locked Rotor Amps 21 11 12
Compressor 2 Rated Load Amps  8.2 
Locked Rotor Amps   55.3
Compressor 3 Rated Load Amps 22.4  7.7
Locked Rotor Amps  75 54
Compressor 4 Rated Load Amps 22.4  7.7
Locked Rotor Amps  75 54
Outdoor Fan

Full Load Amps
(total)
2.8

1.4
(8.4)
1.1

Power Exhaust
(2) 0.33 HP
Full Load Amps
(total)
2.4
(4.8)
1.3

1
(2)
Service Outlet 115V GFI (amps) 15 15 20
Indoor Blower
Motor
Horsepower 5 7.5 10 5 7.5 10 5 7.5 10
Full Load Amps  24.2 30.8  11 14   11
2
Maximum
Overcurrent
Protection (MOCP)
Unit Only 125 150 150  70 70 50 50 
With (2) 0.33 HP
Power Exhaust
150 150 150 70 70 80 50 50 
3
Minimum
Circuit
Ampacity (MCA)
Unit Only 121  137 57   44 47 50
With (2) 0.33 HP
Power Exhaust
 134 142      52
NOTE - All units have a minimum Short Circuit Current Rating (SCCR) of 5000 amps.
1
Extremes of operating range are plus and minus 10% of line voltage.
2
HACR type breaker or fuse.
3
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.