5803641-JIM-B-0620
Johnson Controls Ducted Systems
25
Optional Electric Heat
The factory-installed heaters are wired for single point power
supply. Power supply need only be brought into the single point
terminal block.
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 11 for
minimum CFM limitations and to Table 9 for electrical data.
CONDENSER FAN DATA
Quantity of fans
1
1
2
Fan diameter (Inch)
24
24
24
Type
Prop
Prop
Prop
Drive type
Direct
Direct
Direct
Quantity of motors
1
1
2
Motor HP each
1/3
1/3
1/3
No. speeds
1
1
1
RPM
850
850
850
Nominal total CFM
3300
3700
6300
BELT DRIVE EVAP FAN DATA
Quantity
1
1
1
Fan Size (Inch)
12 x 9
12 x 9
12 x 9
Type
Centrifugal
Centrifugal
Centrifugal
Motor Sheave
1VM34
1VL44
1VM34
1VL44
1VL40
1VP56
Blower Sheave
AK69
AK69
AK56
AK56
AK61
AK74
Belt
A47
A47
A47
A47
A47
A51
Motor HP each
1-1/2
1-1/2
1-1/2
1-1/2
1-1/2
2
RPM
1725
1725
1725
1725
1725
1725
Frame size
56
56
56
56
56
56
FILTERS
Quantity - Size
4 - (24 x 16 x 2)
4,5
4 - (24 x 16 x 2)
4,5
4 - (24 x 16 x 2)
4,5
4 - (24 x 16 x 4)
6
4 - (24 x 16 x 4)
6
4 - (24 x 16 x 4)
6
1. 1st Stage Capacity is 75% of Full Capacity.
2. 1st Stage Capacity is 70% of Full Capacity.
3.
JA3ZJ, JA4ZJ, JA5ZJ have crankcase heaters standard.
4. 2 In. Throwaway, Standard, MERV (Minimum Efficiency Reporting Value) 3.
5. 2 In. Pleated, Optional, MERV 8.
6. 4 In. Pleated, Optional, MERV 13.
JA3 thru A5ZJ Two Stage Gas Heat Physical Data (Continued)
Component
Models
JA3ZJ
JA4ZJ
JA5ZJ
Nominal Tonnage
3.0
4.0
5.0
Table 11: Electric Heat Minimum Supply Air
Size
(Tons)
Model
Voltage
Minimum Supply Air (CFM)
Heater kW
3
6
9
15
20
24
JA3
(3)
ZJ
208/230-3-60
960
960
1020
1000
-
-
460-3-60
980
960
960
960
-
-
600-3-60
-
-
960
960
-
-
JA4
(4)
ZJ
208/230-3-60
-
1280
1420
1400
1400
-
460-3-60
-
1400
1400
1400
1400
-
600-3-60
-
-
1400
1400
1400
-
JA5
(5)
ZJ
208/230-3-60
-
1600
1600
1600
1600
1600
460-3-60
-
1600
1600
1600
1600
1600
600-3-60
-
-
1600
1600
1600
1600