Design Guide
HEV-HEH SEriES
Heat Controller
32
32
Engineering Design Guide
HEV/H SERIES
Heat Controller, LLC
Auxiliary
Electric
Heat
Model
HEV/H Models
kW Rating
Btuh Rating Minimum
CFM
Required
024
030-
042
048-
060
240V 208V 240V 208V
HGM4A
3.8
2.9
13000 9900
500
HGM5A
4.8
3.6
16300 12300
500
HGM8A
7.6
5.7
25900 19400
650
HGM10A
9.6
7.2
32700 24600
650
HGM12A
11.4
8.6
38900 29200
750
HGL10A
9.6
7.2
32700 24600
1300
HGL15A
14.4
10.8 49100 36900
1350
HGL20A
19.2
14.4 65500 49200
1350
Black area denotes compatibility
Note: Horizontal units rated for zero clearance unit and 1” clearance for the
rst three feet of duct,
Vertical units rated for zero clearance for both unit and duct.
Auxiliary Electric heaters are mounted externally
Auxiliary Electric
Heat Model
Supply
Circuit
Heater Amps
Minimum Circuit Amps
Maximum Fuse
240V
208V
240V
208V
240V
208V
HGM4A
Single
15.8
14.0
19.8
17.1
20
20
HGM5A
Single
20.0
17.3
25.0
21.6
25
25
HGM8A
Single
31.7
27.5
39.6
34.4
40
35
HGM10A
Single
40.0
34.7
50.0
43.4
50
45
HGL10A
Single
40.0
34.7
50.0
43.4
50
45
HGM12A
Single
47.5
41.2
59.4
51.5
60
60
Dual - L1/L2
Dual - L3/L4
31.7
15.8
27.5
13.7
39.6
19.8
34.4
17.1
40
20
35
20
HGL15A
Single
60.0
52.0
75.0
65.0
80
70
Dual - L1/L3
40.0
34.7
50.0
43.4
50
45
Dual - L2/L4
20.0
17.3
25.0
21.6
25
25
HGL20A
Single
80.0
69.3
100.0
86.6
100
90
Dual - L1/L3
40.0
34.7
50.0
43.4
50
45
Dual - L2/L4
40.0
34.7
50.0
43.4
50
45
All heaters rated single phase 208-240V 60Hz
All Fuses UL Class K general purpose
All models 12kW or larger feature internal circuit breakers
Auxiliary Heat Electrical Data
Auxiliary Heat Ratings
