Lennox ZHA Series, Unit Information

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ELECTRICAL/ELECTRIC HEAT DATA 10 TON
10 TON STANDARD EFFICIENCY ZHA120S4
1
Voltage - 60hz 208/230V - 3 Ph 460V - 3 Ph 575V - 3 Ph
Compressor 1 Rated Load Amps 15.6 7.8 5.8
Locked Rotor Amps 110 52 38.9
Compressor 2 Rated Load Amps 15.6 7.8 5.8
Locked Rotor Amps 110 52 38.9
Outdoor Fan
Motors (2)
Full Load Amps 3 1.5 1.2
(total) (6) (3) (2.4)
Power Exhaust
(2) 0.5 HP
Full Load Amps 3 1.5 1.2
(total) (6) (3) (2.4)
Indoor Blower
Motor
Horsepower 2 3 5 2 3 5 2 3 5
Full Load Amps 7.5 10.5 16.7 3.4 4.8 7.6 2.7 3.9 6.1
2
Maximum
Overcurrent
Protection
Unit Only 60 60 70 30 30 35 20 25 25
With (2) 0.5 HP
Power Exhaust
70 70 80 30 35 35 25 25 30
3
Minimum
Circuit
Ampacity
Unit Only 49 52 59 24 26 29 19 20 22
With (2) 0.5 HP
Power Exhaust
55 58 65 27 29 32 21 22 25
ELECTRIC HEAT DATA
Electric Heat Voltage 208V 240V 208V 240V 208V 240V 480V 480V 480V 600V 600V 600V
2
Maximum
Overcurrent
Protection
Unit+
Electric Heat
15 kW 90 100 100 100 100 110 50 50 60 40 40 40
22.5 kW
110 125 125 125 125 150 60 60 70 50 50 50
30 kW 150 150 150 150 150 150 70 80 80 60 60 60
45 kW 175 200 175 200 200 200 100 100 100 80 80 80
60 kW 175 200 200 200 200 225 100 100 110 80 80 80
3
Minimum
Circuit
Ampacity
Unit+
Electric Heat
15 kW 88 94 91 97 98 104 47 48 51 37 38 40
22.5 kW
108 117 111 120 117 126 58 60 62 46 47 49
30 kW 127 139 130 142 137 149 70 71 74 55 56 58
45 kW 166 184 169 188 176 194 92 94 96 73 74 76
60 kW 174 193 177 197 184 203 97 98 101 76 78 80
2
Maximum
Overcurrent
Protection
Unit+
Electric Heat
and (2) 0.5 HP
Power Exhaust
15 kW 100 100 100 110 110 110 50 60 60 40 40 45
22.5 kW 125 125 125 150 125 150 70 70 70 50 50 60
30 kW
150 150 150 150 150 175 80 80 80 60 60 70
45 kW 175 200 175 200 200 200 100 100 100 80 80 80
60 kW 200 200 200 225 200 225 100 110 110 80 80 90
3
Minimum
Circuit
Ampacity
Unit+
Electric Heat
and (2) 0.5 HP
Power Exhaust
15 kW 94 100 97 103 104 110 50 51 54 39 40 43
22.5 kW 114 123 117 126 123 132 61 63 65 48 49 52
30 kW 133 145 136 148 143 155 73 74 77 57 58 61
45 kW
172 190 175 194 182 200 95 97 99 75 76 79
60 kW 180 199 183 203 190 209 100 101 104 79 80 82
ELECTRIC HEAT ACCESSORIES
Unit Fuse Block Unit Only 11M12 11M12 11M12 11M12 11M12 11M12 11M10 11M10 11M11 11M09 11M09 11M10
Unit + Power Exhaust 11M12 11M12 11M12 11M12 11M13 11M13 11M11 11M11 11M11 11M09 11M10 11M10
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.