5188235-YIM-E-0518
Johnson Controls Ducted Systems
31
Optional Electric Heat
The factory or field installed heaters are wired for single point
power supply. Power supply need only be brought into the
single point terminal block, and thermostat wiring to the low
voltage terminal strip located in the upper portion of the unit
control box.
These CSA approved heaters are located within the central
compartment of the unit with the heater elements extending in
to the supply air chamber.
Fuses are supplied, where required, by the factory. Some kW
sizes require fuses and others do not. Refer to Table 9 for
minimum CFM limitations and to Table 7 for electrical data.
Optional Gas Heat
These gas-fired heaters have aluminized-steel or optional
stainless steel, tubular heat exchangers with spark ignition with
proven pilot.
All gas heaters are shipped from the factory equipped for
natural gas use. See Gas Heat Application Data Table.
For natural gas heating installations in locations requiring low
Nox emissions, Accessory model 1LN0406 must be used.
NOTE: Gas Heaters are shipped available for natural gas, but can be converted to L.P. with Kit Model No. 1NP0440 or 1NP0485 (2 Stage).
All furnaces meet the latest California seasonal efficiency requirements.
1. Based on 1075 Btu/Ft.
3
.
2. The air flow must be adjusted to obtain a temperature rise within the range shown.
Table 9: Electric Heat Minimum Supply Air
Size
(Tons)
Voltage
Minimum Supply Air (CFM)
Heater kW
5
7
10
15
20
30
036
(3.0)
208/230-1-60
900
900
900
900
900
-
208/230-3-60
900
900
900
900
900
-
460-3-60
-
900
900
900
900
-
600-3-60
-
-
900
900
900
-
048
(4.0)
208/230-1-60
1200
1200
1200
1200
1200
-
208/230-3-60
1200
1200
1200
1200
1200
-
460-3-60
-
1200
1200
1200
1200
-
600-3-60
-
-
1200
1200
1200
-
060
(5.0)
208/230-1-60
1500
1500
1500
1500
1500
1500
208/230-3-60
1500
1500
1500
1500
1500
1500
460-3-60
-
1500
1500
1500
1500
1500
600-3-60
-
-
1500
1500
1500
1500
Table 10: Gas Heat Application Data
Gas Heat
Option
Input
Capacity
(MBH)
Output
Capacity
(MBH)
Available
On Models
Gas Rate
1
(Ft
3
/hr)
Temperature Rise °F At Full Input
2
Min.
Max.
H05
50
40
3 TON
47
15
45
H07
75
60
4 TON
70
25
70
H10
100
80
3/5 TON
93
45/25
75/55
H12
125
100
4/5 TON
116
45/35
75/75
N07
75
61
3/4/5 TON
70
35/25/20
70/70/55
N11
115
92
3 TON
107
55
90
N12
125
101
4/5 TON
116
45/35
75/75
