DUCT COVERS - Units are shipped with the bottom
duct openings covered. An accessory flange kit is avail-
able for connecting side ducts.
For bottom duct applications:
1. Remove the side panels from the supply and return
air compartments to gain access to the bottom
supply and return air duct covers.
2. Remove and discard the bottom duct covers. (Duct
openings are closed with sheet metal covers except
when the unit includes a power exhaust option. The
covering consists of a heavy black paper composition.)
3. Replace the side supply and return air compartment
panels.
For side duct applications;
1. Replace the side panels on the supply and return air
compartments with the accessory flange kit panels.
2. Connect ductwork to the duct flanges on the rear of
the unit.
FIG. 7 - DIMENSIONS & CLEARANCES - 15 & 20 TON
RETURN AIR
OUTDOOR AIR
(Economizer)
SUPPLY AIR
OUTDOOR AIR
DETAIL "X"
(ACCESSORY SIDE SUPPLY AND RETURN AIR OPENINGS)
INDOOR SECTION
OUTDOOR SECTION
Front
36"
Back
24" (Less Economizer)
49" (With Economizer)
Left Side (Filter Access)
24" (Less Economizer)
36"
3
(With Economizer)
4
Right Side (Cond. Coil)
36"
Below Unit
1
2
0"
Above Unit
2
72" With 36" Maximum
Horizontal Overhang
(For Outdoor Air
Discharge Outlet)
NOTE: Unit and ductwork are approved for zero clearance to combustible
materials when equipped with electric heat.
1
Units (applicable in U.S.A. only) may be installed on combustible floors made
from wood or class A, B or C roof covering material.
2
Units must be installed oudoors. Overhanging structures or shrubs should
not obstruct outdoor air discharge outlet.
3
If economizer is factory installed, the assembled hood kit must be removed
prior to final installation. This hood is 54" long.
4
Remove hood kit prior to final installation.
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
1-1/8" KO
Control
Wiring
Front
3/4" NPS (Fem.)
Bottom
B
3-5/8" KO
Power
Wiring
Front
3" NPS (Fem.)
Bottom
UTILITIES ENTRY DATA
CLEARANCES
511.06-N3Y
Unitary Products Group
9
