5167540-YIM-H-0518
Johnson Controls Ducted Systems
27
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.
Component
Models
ZR037
ZR049
ZR061
Nominal Tonnage
3
4
5
CONDENSER FAN DATA
Quantity of fans
1
2
2
Fan diameter (Inch)
24
24
24
Type
Prop
Prop
Prop
Drive type
Direct
Direct
Direct
Quantity of motors
1
2
2
Motor HP each
1/3
1/3
1/3
No. speeds
Var.
Var.
Var.
RPM
850
850
850
Total CFM
3500
7000
7000
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
1VP34
1VL44
1VP34
1VL44
1VP34
1VL44
Blower Sheave
AK61
AK59
AK61
AK59
AK61
AK59
Belt
A47
A47
A47
A47
A47
A47
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. 1
st
Stage Capacity is 75% of Full Capacity.
2. 1
st
Stage Capacity is 70% of Full Capacity.
3. ZR049, ZR061 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.
ZR037-061 Two Stage Gas Heat Physical Data (Continued)
Table 11: Electric Heat Minimum Supply Air
Size
(Tons)
Model
Voltage
Minimum Supply Air (CFM)
Heater kW
3
6
9
15
20
24
037
(3)
ZR
208/230-3-60
960
960
1020
1000
-
-
460-3-60
980
960
960
960
-
-
600-3-60
-
-
960
960
-
-
049
(4)
ZR
208/230-3-60
-
1280
1420
1400
1400
-
460-3-60
-
1400
1400
1400
1400
-
600-3-60
-
-
1400
1400
1400
-
061
(5)
ZR
208/230-3-60
-
1600
1600
1600
1600
1600
460-3-60
-
1600
1600
1600
1600
1600
600-3-60
-
-
1600
1600
1600
1600