Lennox SCA Series User Manual

Page 13
ELECTRICAL DATA 20 TON
Model No. SCA240H4
1
Voltage - 60hz 208/230V-3 Ph 460V-3 Ph 575V-3 Ph
Compressor 1 Rated Load Amps 16 7.8 5.7
Locked Rotor Amps 110 52 38.9
Compressor 2 Rated Load Amps 16 7.8 5.7
Locked Rotor Amps 110 52 38.9
Compressor 3 Rated Load Amps 16 7.8 5.7
Locked Rotor Amps 110 52 38.9
Compressor 4 Rated Load Amps 16 7.8 5.7
Locked Rotor Amps 110 52 38.9
Outdoor Fan
Motors (6)
Full Load Amps 2.4 1.3 1
(total) (14.4) (7.8) (6)
Power Exhaust
(3) 0.33 HP
Full Load Amps 2.4 1.3 1
(total) (7.2) (3.9) (3)
Service Outlet 115V GFI (Amps) 20 20 15
Indoor Blower
Motor
Horsepower 5 7.5 5 7.5 5 7.5
Full Load Amps 16.7 24.2 7.6 11 6.1 9
2
Maximum
Overcurrent
Protection
Unit Only 110 125 50 60 40 45
With (3) 0.33 HP Power Exhaust 110 125 60 60 45 50
3
Minimum
Circuit
Ampacity
Unit Only 100 109 49 53 37 41
With (3) 0.33 HP Power Exhaust 107 116 53 57 40 44
ELECTRICAL HEAT DATA
Electric Heat Voltage 208V 240V 208V 240V 480V 480V 600V 600V
2
Maximum
Overcurrent
Protection
Unit+
Electric Heat
20 kW - - - - - - - - - - - - 50 60 - - - - - -
30 kW
4
110 125 125 125 60 60 45 50
40 kW - - - - - - - - - - - - 70 80 - - - - - -
60 kW
4
150 175 175 175 90 90 70 70
80 kW - - - - - - - - - - - - 110 110 - - - - - -
90 kW
4
225 250
4
225 250 125 125 100 100
3
Minimum
Circuit
Ampacity
Unit+
Electric Heat
20 kW - - - - - - - - - - - - 49 53 - - - - - -
30 kW 100 112 109 121 55 59 44 48
40 kW - - - - - - - - - - - - 70 74 - - - - - -
60 kW 146 166 156 175 82 86 66 69
80 kW - - - - - - - - - - - - 106 110 - - - - - -
90 kW 209 238 218 247 118 123 95 98
2
Maximum
Overcurrent
Protection
Unit+
Electric Heat
and (3) 0.33 HP
Power Exhaust
20 kW - - - - - - - - - - - - 60 60 - - - - - -
30 kW
4
110 125
4
125 150 60 70 50 60
40 kW - - - - - - - - - - - - 80 80 - - - - - -
60 kW 175 175
4
175 200 90 100 70 80
80 kW - - - - - - - - - - - - 125 125 - - - - - -
90 kW
4
225 250
4
250
4
300 125 150 100 110
3
Minimum
Circuit
Ampacity
Unit+
Electric Heat
and (3) 0.33 HP
Power Exhaust
20 kW - - - - - - - - - - - - 53 57 - - - - - -
30 kW 109 121 118 130 60 64 48 52
40 kW - - - - - - - - - - - - 75 79 - - - - - -
60 kW 155 175 165 184 87 91 70 73
80 kW - - - - - - - - - - - - 111 115 - - - - - -
90 kW
218 247 227 256 123 127 98 102
1
NOTE - 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.
4
Factory installed circuit breaker not available;.

Lennox SCA Series Specifications

General

Brand	Lennox
Model	SCA Series
Category	Air Conditioner
Language	English