Lennox LGA Series Unit Information page 28

ELECTRIC HEAT DATA LCA036(S)(H), LCA042(S)(H), LCA048(S)(H)
Electric Heat
kW Size kW Size
Model No., Voltage Model No., Voltage
Required Required
& Net Weight
EHA060-7 EHA060-7
7 kW 7 kW
208/230v - 1 ph (23L62) 208/230v - 1 ph (23L62)
1PH 1PH
9 lbs. (4 kg) 9 lbs. (4 kg)
EHA060-10 EHA060-10
10 kW 10 kW
208/230v - 1 ph (23L63) 208/230v - 1 ph (23L63)
1PH 1PH 1PH
9 lbs. (4 kg) 9 lbs. (4 kg)
EHA060-15 EHA060-15
15 kW 15 kW
208/230v - 1 ph (23L64) 208/230v - 1 ph (23L64)
1PH 1PH 1PH
9 lbs. (4 kg) 9 lbs. (4 kg)
EHA060-20 EHA060-20
20 kW 20 kW
208/230v - 1 ph (23L65) 208/230v - 1 ph (23L65)
1PH 1PH 1PH
12 lbs. (6 kg) 12 lbs. (6 kg)
EHA060-7 EHA060-7
208/230v - 3 ph (23L67) 208/230v - 3 ph (23L67)
7 kW 7 kW
460v - 3 ph (23L73) 460v - 3 ph (23L73)
3PH 3PH
575v - 3 ph (23L79) 575v - 3 ph (23L79)
9 lbs. (4 kg) 9 lbs. (4 kg)
EHA072-10 EHA072-10 EHA072-10
208/230v - 3 ph (23L68) 208/230v - 3 ph (23L68)
10 kW 10 kW
460v - 3 ph (23L74) 460v - 3 ph (23L74)
3PH 3PH 3PH
575v - 3 ph (23L80) 575v - 3 ph (23L80)
9 lbs. (4 kg) 9 lbs. (4 kg)
EHA072-15 EHA072-15 EHA072-15
208/230v - 3 ph (23L69) 208/230v - 3 ph (23L69)
15 kW 15 kW
460v - 3 ph (23L75) 460v - 3 ph (23L75)
3PH 3PH 3PH
575v - 3 ph (23L81) 575v - 3 ph (23L81)
9 lbs. (4 kg) 9 lbs. (4 kg)
EHA072-20 EHA072-20 EHA072-20
208/230v - 3 ph (23L70) 208/230v - 3 ph (23L70)
20 kW 20 kW
460v - 3 ph (23L76) 460v - 3 ph (23L76)
3PH 3PH 3PH
575v - 3 ph (23L82) 575v - 3 ph (23L82)
12 lbs. (6 kg) 12 lbs. (6 kg)
{Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements. Use wires suitable for at least 167°F (75°C).
}May be used with two stage control.
*NOTE — Heater Sub-Fuse Box is required for fusing electric heat and must be ordered extra. Factory installed heaters will have fuse box installed. Also requires LTB2 Terminal Block.
*Heater Only
No. of No. of
Sub-Fuse Box Sub-Fuse Box
Steps Steps
(Required)
1
1
EHAFB-7 EHAFB-7
208/230v - 1 ph (27L01) 208/230v - 1 ph (27L01)
1
1
}2
}2
EHAFB-10 EHAFB-10
208/230v - 1 ph (27L02) 208/230v - 1 ph (27L02) (27L02)
}2
}2
}2
}2
EHAFB-15 EHAFB-15
208/230v - 1 ph (27L03) 208/230v - 1 ph (27L03) (27L03)
}2
}2
}2
}2
EHAFB-20 EHAFB-20
208/230v - 1 ph (27L04) 208/230v - 1 ph (27L04) (27L04)
}2
}2
1
1
1
1
EHAFB-7 EHAFB-7
1
208/230v - 3 ph (27L06) 208/230v - 3 ph (27L06)
1
460/575v - 3 ph (27L12) 460/575v - 3 ph (27L12)
1
1
1
1
1
1
1
1
EHAFB-10 EHAFB-10
208/230v - 3 ph (27L07) 208/230v - 3 ph (27L07)
1
460v - 3 ph (27L13) 460v - 3 ph (27L13) 460v - 3 ph (27L13)
1
575v - 3 ph (27L18) 575v - 3 ph (27L18)
1
1
1
1
1
1
1
EHAFB-15 EHAFB-15
1
208/230v - 3 ph (27L08) 208/230v - 3 ph (27L08)
1
EHAFB-15/20 EHAFB-15/20
460v - 3 ph (27L14) 460v - 3 ph (27L14) 460v - 3 ph (27L14)
1
EHAFB-15 EHAFB-15
1
575v - 3 ph (27L19) 575v - 3 ph (27L19)
1
1
1
}2
}2
}2
EHAFB-20 EHAFB-20
}2
208/230v - 3 ph (27L09) 208/230v - 3 ph (27L09)
1
EHAFB-20/25 EHAFB-20/25
460v - 3 ph (27L15) 460v - 3 ph (27L15) 460v - 3 ph (27L15)
1
EHAFB-15/20 EHAFB-15/20
1
575v - 3 ph (27L14) 575v - 3 ph (27L14)
1
1
1
TABLE 7
Volts Volts kW kW Btuh Btuh
Input Input Input Input Output Output
208 5.3 18,100
220 5.9 20,100
230 6.4 21,900
240 7.0 23,900
208 7.5 25,600
220 8.4 28,700
230 9.2 31,400
240 10.0 34,200
208 11.3 38,600
220 12.6 43,000
230 13.8 47,100
240 15.0 51,200
208 15.0 51,200
220 16.8 57,400
230 18.4 62,800
240 20.0 68,300
208 5.3 18,100
220 5.9 20,100
230 6.4 21,900
240 7.0 23,900
440 5.9 20,100
460 6.4 21,900
480 7.0 23,900
550 5.9 20,100
575 6.4 21,900
600 7.0 23,900
208 7.5 25,600
220 8.4 28,700
230 9.2 31,400
240 10.0 34,200
440 8.4 28,700
460 9.2 31,400
480 10.0 34,200
550 8.4 28,700
575 9.2 31,400
600 10.0 34,200
208 11.3 38,600
220 12.6 43,000
230 13.8 41,700
240 15.0 51,200
440 12.6 43,000
460 13.8 47,100
480 15.0 51,200
550 12.6 43,000
575 13.8 47,100
600 15.0 51,200
208 15.0 51,200
220 16.8 57,400
230 18.4 62,800
240 20.0 68,300
440 16.8 57,400
460 18.4 62,800
480 20.0 68,300
550 16.8 57,400
575 18.4 62,800
600 20.0 68,300
Page 28
{ { Total Unit (with Power Exhaust Fan) &
Electric Heat Minimum Circuit Ampacity
.75 hp 1.5 hp 2 hp
(.56 kW) (1.1 kW) (1.5 kW)
42 51
- - - - - - - -
47 47 56 56
56 64
- - - - - - - -
63 63 72 72
78 87
- - - - - - - -
89 89 97 97
101 110
- - - - - - - -
115 115 123 123
29 30 33
32 32 33 33 35 35
16 16 16 16 17 17
13 13 14 14 14 14
37 38 40
41 41 42 42 44 44
20 20 21 21 21 21
17 17 17 17 18 18
50 51 53
56 56 57 57 59 59
28 28 28 28 29 29
23 23 23 23 24 24
63 64 66
71 71 72 72 74 74
35 35 36 36 37 37
29 29 29 29 30 30
3 hp
(2.2 kW)
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
36
39 39
19 19
15 15
44
48 48
23 23
19 19
57
63 63
31 31
25 25
70
78 78
38 38
31 31