036-21490-002-A-0204
Unitary Products Group
27
NOTE: Units and ductwork are approved for zero clearance
to combustible materials when equipped with elec-
tric heaters.
NOTE: All entry holes should be field sealed to prevent rain
water entry into building.
TABLE 18: MINIMUM CLEARANCES
LOCATION
CLEARANCE
Front
36”
Back
24” (Less Economizer)
49” (With Economizer)
Left Side (Filter Access)
24” (Less Economizer)
36” (With Economizer)
Right Side (Cond. Coil)
36”
Below Unit
1
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.
0”
Above Unit
2
2. Units must be installed outdoors. Overhanging struc-
tures or shrubs should not obstruct outdoor air dis-
charge outlet.
72” With 36” Maximum
Horizontal Overhang (For
Condenser Air Discharge)
TABLE 19: UTILITIES ENTRY DATA
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
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.
OUTDOOR AIR PANEL SIZE
15 TON UNITS 23-3/4" X 43-5/8"
FIGURE 8 -
DETAIL “X” ACCY. SIDE SUPPLY & RETURN AIR OPENINGS - 15 TON
SUPPLY
AIR
RETURN
AIR
OUTDOOR
AIR
5-1/8"
18-5/8"
27-3/4"
28-5/8"
40-1/2"
OUTDOOR AIR
COMPARTMENT
ACCESS
FILTER
ACCESS
1" NPT FEMALE
COND. DRAIN
CONNECTION
DOT PLUG
(For pressure
drop reading)
EVAPORATOR
SECTION
CONDENSER
SECTION
GAUGE LINE
ACCESS
40-3/8"
3-3/4"
COMPRESSOR
ACCESS
SUPPLY AIR
ACCESS
RETURN AIR
ACCESS
REAR
VIEW
