Table 42: Electric heat amp draw
208-230V/3Ph/60Hz* 460V/3Ph/60Hz
575V/3Ph/60Hz
Capacity
Type of heat
Heater
nominal
kW
Each
stage kW
Steps
A
A
A
Low heat
3
Low heat
with SCR**
50
16.7
3***
115.3
-
-
Low heat
3
Low heat
with SCR**
60
20.0
3***
-
69.2
55.3
High heat
6
High heat
with SCR**
100
16.7
6***
230.5
-
-
High heat
6
25 ton to
30 ton
High heat
with SCR**
120
20.0
6***
-
138.3
110.7
Low heat
4
Low heat
with SCR**
60
15.0
4***
138.3
-
-
Low heat
4
Low heat
with SCR**
80
20.0
4***
-
92.2
73.8
High heat
8
High heat
with SCR**
120
15.0
8***
276.6
-
-
High heat
8
40 ton to
50 ton
High heat
with SCR**
160
20.0
8***
-
184.4
147.5
Note:
* 208 VA to 230 VA are based on 230 V operation.
** Silicon controlled rectifier (SCR) is a modulating electric heat option.
*** SCR electric heat is installed on the first stage of the unit and provides modulation from 0–100%.
Table 43: Supply fan and return/exhaust fan 25 ton to 50 ton premium efficiency - ODP
Nominal voltage
208-230/3/60*
460/3/60
575/3/60
Motor HP
FLA
FLA
FLA
5
14
6.6
5.3
7.5
20.4
9.7
8
10
26
12.5
10
15
38
17.8
14.2
20
52
23.5
19.1
25
64
29
24.5
30
76
35
29
40
99
49
40
Supply fan motor
**
50
121
57
46
3
8.5
4.2
3.4
5
14
6.6
5.3
7.5
20.4
9.7
8.0
10
26
12.5
10.0
15
38
17.8
14.2
Return/exhaust fan motor
20
52
23.5
19.1
Tempmaster
®
Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide
66
Tempmaster
