035-17311-000 REV A (1200)
18
Unitary Products Group
ACCESSORIES
ELECTRIC HEAT
Electric heaters are available for field installation. Refer to
electric heat instructions for installation. These heaters
mount in the heat compartment with the heating elements
extending into the supply air chamber. All electric heaters are
fused and intended for use with single point power supply.
ECONOMIZER
The economizer can be factory or field installed. If factory
installed, refer to the instructions included with the outdoor air
hood to complete the assembly. Field installed economizers
include complete instructions for installation.
RAIN HOOD
The following procedure should be used when assembling
the economizer rain hood onto a unit. The outdoor and return
air dampers, the damper actuator and gears, the outdoor and
return air divider baffles, and all chosen control sensors are
factory mounted as part of the economizer option.
All of the hood components, including the filters, the gasket-
ing, and the hardware for assembling, are packaged and
located between the condenser coil section and the main unit
cabinet.
To assemble the rain hood:
1.
Remove the hood components, filters, gasketing, and
assembly hardware from the area between the coils and
main cabinet.
2.
Follow the instructions included with the hood to com-
plete the installation.
TABLE 13: PHYSICAL DATA
Component
Models
090
120
150
Evaporator
Blower
Blower, Centrifugal (Dia. X Wd. in.)
15 x 15
15 x 15
15 x 15
Motor, Standard (HP)
1-1/2
2
3
Motor, Optional (HP)
2
3
5
Evaporator
Coil
DM
Rows
2
2
3
Fins per Inch
15
15
15
Height (in.)
32
40
40
Face Area (ft.
2
each)
10.6
13.2
13.2
Condenser
Fan
(2 per Unit)
DM
Propeller Dia. (in., each)
24
24
24
Motor (HP, each)
1/3
3/4
3/4
CFM, Nominal (each)
3400
4400
4400
Condenser
Coil
(2 per unit)
DM
Rows (each)
1
1
2
Fins per Inch
20
20
20
Height (in. each)
28
44
44
Face Area (ft.
2
each)
9.2
14.5
14.5
Refrigerant
Charge
DM
System 1 (lb./oz.)
4/12
6/12
10/12
System 2 (lb./oz.)
4/6
6/12
9/8
Compressors
DM
Quantity
2
2
2
Type
Recip
Recip
Recip
Air Filters
Size (Wd. x Ht. x Thickness in.)
25x20x2
25x20x2
25x20x2
Number Per Unit
4
4
4
