12.�
HEATER KIT
12. Heater Kit (Optional)
20
Electric
Heat Kit
Model
Air
Handler
Model
Electric
Heat
(kW)
2
3
4
5
21-4245-01
24K
5
28.3
25.9
30
30
●
●
●
●
21-4245-02
7.5
40.7
37.2
45
40
╳
●
●
●
21-4245-03
10
53.2
48.5
60
50
╳
╳
●
●
21-4245-01
36K
5
29.8
27.4
30
30
●
●
●
●
21-4245-02
7.5
42.2
38.7
45
40
╳
●
●
●
21-4245-03
10
54.7
49.9
60
50
╳
╳
●
●
21-4245-04
15
42.2+36.9 38.6+33.8
45+40
40+35
╳
╳
╳
●
21-4245-01
48K/60K
5
31.8
29.4
35
30
●
●
●
●
21-4245-02
7.5
44
.
8
40.7
45
45
╳
●
●
●
21-4245-03
10
56.7
51.9
60
55
╳
╳
●
●
21-4245-04
15
44.8+36.9 40.7+33.8
50+40
50+35
╳
╳
●
●
21-4245-05
20
56.7+49.9 51.9+45.2
60+50
60+50
╳
╳
╳
●
MIN. Circuit Ampacity
208VAC
230VAC
MAX. Fuse or Breaker
(HACR) Ampacity
208VAC
230VAC
Fan Speed Tap
●
: available
╳
: unavailable
NOTES:
1. To be wired in accordance with NEC and local codes.
2. Fan speed selection: 1--Medium low; 2--Medium; 3--Medium high; 4--High.
3. The heater kit must be connected to the power supply separately.
4. Check if heat kit is suitable for AHU 3-way position installation.
5. Ampacities for MCA and Fuse/breaker including the blower motor.
6. Heat pump systems require specified airflow. Each ton of cooling requires between 350 and 450 cubic feet
of air per minute(CFM), or 400 CFM nominally.
