DUCT COVERS - Units are shipped with all air duct
openings covered.
For side duct applications;
1. Remove and discard the supply and return air duct
covers.
2. Connect ductwork to duct flanges on the rear of the
unit.
For bottom duct applications;
1. Remove the side supply and return air duct covers to
gain access to the bottom supply and return air duct
covers.
2. Remove and discard the bottom duct covers.
3. Replace the side duct covers.
FIG. 10 - UNIT DIMENSIONS (7-1/2 - 12-1/2 TON)
All dimensions are in inches. They are sub-
ject to change without notice. Certified di-
mensions will be provided upon request.
HOLE
OPENING
SIZE
(DIA.)
USED FOR
A
3/4" KO
Control
Wiring
Side
7/8" KO
Bottom*
B
2" KO
Power Wiring
(Side or Bottom)*
C
2" KO
Gas Piping (Front)
D
1-11/16" KO
Gas Piping (Bottom)*
*
Openings in the bottom of the unit can be located by the slice in the
insulation.
UTILITIES ENTRY DATA
RETURN AIR
OUTDOOR AIR
(Economizer)
SUPPLY AIR
CONDENSER AIR
33-7/8
(090)
39-7/8
(120)
47-7/8
(150)
CONDENSER
COIL
DETAIL "X"
(SIDE SUPPLY AND RETURN AIR OPENINGS)
CLEARANCES
Front
24"
Back
12" (Less Economizer)
36" (With Economizer)
Left Side (Filter Access)
24" (Less Economizer)
54" (With Economizer)
Right Side (Cond. Coil)
24"
Below Unit
1
2
0"
Above Unit
2
72" with 36" maximum
Horizontal Overhang
(For Condenser Air Discharge)
1
Locate unit so that the vent air outlet hood is at least:
•
Three (3) feet above any forced air inlet located within 10 horizontal feet (excluding
those integral to the unit).
•
Four (4) feet below, 4 horizontal feet from, or 1 foot above any door or gravity air inlet
into the building.
•
Four (4) feet from electric meters, gas meters, regulators and relief equipment.
2
Units may be installed on combustible floors made from wood or class A, B or C
roof covering material.
3
Units must be installed outdoors. Overhanging structures or shrubs should not
obstruct the condenser air discharge outlet.
NOTE: A 1" clearance must be provided between any combustible material and the
supply air ductwork for a distance of 3 feet from the unit.
The products of combustion must not be allowed to accumulate within a confined
space and recirculate.
530.22-N4Y
Unitary Products Group
9