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178113-BIM-D-0906
Table 8: ZW-15 thru -25 Physical Data (Continued)
Component
Nominal Tonnage
Type
Drive type
No. speeds
Number of motors
Motor HP each
RPM
Nominal total CFM
BELT DRIVE EVAP FAN DATA
Quantity
Fan Size (Inch)
Type
Motor Sheave
Blower Sheave
Belt
Motor HP each
RPM
Frame size
FILTERS
Quantity - Size
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.
Table 9: Electric Heat Minimum Supply Air
Size
(Tons)
208/230-3-60
-15
(15)
208/230-3-60
-18
(17.5)
208/230-3-60
-20
(20)
208/230-3-60
-25
(25)
Optional Gas Heat
These gas-fired heaters have aluminized-steel or optional
stainless steel, tubular heat exchangers with spark ignition with
proven pilot.
Unitary Products Group
ZW-15
15
Prop
Direct
1
2
1/3
850
4000
1
15 X 15
Centrifugal
1VP56
1VP56
BK90
BK80
BX81
BX78
5
1725
1725
184T
184T
12 - 12 x 24 x 2
Voltage
9
4500
460-3-60
4500
600-3-60
4500
6000
460-3-60
6000
600-3-60
6000
6000
460-3-60
6000
600-3-60
6000
7500
460-3-60
7500
600-3-60
7500
Models
ZW-18
17.5
Prop
Direct
1
2
1/3
850
4000
1
18 X 15
Centrifugal
1VP68
1VP68
1VP68
BK120
BK120
BK120
BX83
BX81
BX83
5
7.5
7.5
1725
1725
1725
213T
213T
213T
12 - 12 x 24 x 2
12 - 12 x 24 x 2
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.
Minimum Supply Air (CFM)
Heater kW
18
54
4500
5000
4500
5000
4500
4500
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
7500
7500
7500
7500
7500
7500
ZW-20
ZW-25
20
25
Prop
Prop
Direct
Direct
1
1
2
2
1/3
1/3
870
870
5000
5000
1
1
18 X 15
18 X 15
Centrifugal
Centrifugal
1VP68
1VP75X 1VP75X
BK120 1B5V110 1B5V94
BX81
5VX860 5VX860
7.5
7.5
15
1725
1725
213T
254T
12 - 12 x 24 x 2
72
5000
4500
4500
6000
6000
6000
6000
6000
6000
7500
7500
7500
15
1725
254T
21
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