Lennox MMA018SM4 Service Manual page 8

EL ECT RI C HE AT DATA
Electric Heat
Indoor
Model
Usage
Model Number
018, 5 kW
024,
036
018, 8 kW
024,
036,
048
018, 10 kW
024,
036,
048,
060
024, 15 kW
036,
048,
060
036, 20 kW
048,
060
NOTE - Circuit 1 Minimum Circuit Ampacity includes the Blower Motor Full Load Amps.
Electric heater capacity only - does not include additional blower motor heat capacity.
1
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F.
2
HACR type breaker or fuse.
3
Size and
Volt
24Z26 208
220
230
240
24Z27 208
220
230
240
24Z28 208
220
230
240
24Z29
208
220
230
240
24Z30 208
220
230
240
2
Input
kW Btuh Ckt 1
1
3.8 12,800
4.2 14,300
23 / 27
4.6 15,700
5.0 17,100
6.0 20,500
6.7 22,900
37 / 42
7.3 25,100
8.0 27,300
7.5 25.600
8.4 38.700
46 / 53
9.2 31.400
10.0 34.100
11.3 38,400
12.6 43,000
23 / 27
13.5 47,000
15.0 51,200
15.0 51,200
16.8 57,300
46 / 53
18.4 62,700
20.0 68,200
8
Minimum Circuit Maximum Overcurrent
3
Ampacity (MCA) Protection (MOCP)
Ckt 2 Ckt 1
- - - 25 / 30
- - - 40 / 45
- - - 50 / 60
46 / 53 25 / 30
46 / 53 50 / 60
Ckt 2
- - -
- - -
- - -
50 / 60
50 / 60