284806-YIM-A-0107
30
Unitary Products Group
NOTE:
ELEC / ELEC Models: Units and ductwork are
approved for zero clearance to combustible material
when equipped with electric heaters.
GAS / ELEC Models: 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.
Locate unit so that the vent air outlet hood is at least:
• Three (3) feet above any force air inlet located
within 10 horizontal feet (excluding those integral to
the unit).
• Four (4) feet below, four horizontal feet from, or one
foot above any door or gravity air inlet into the
building.
• Four (4) feet from electric and gas meters,
regulators and relief equipment.
FIGURE 15 - UNIT CLEARANCE AND RAIN HOOD DIMENSIONS (15, 20 & 25 TON)
CLEARANCE
LOCATION
CLEARANCE
Front
36”
Rear
24” (Less Economizer)
49” (With Economizer)
Left Side (Filter Access)
24” (Less Economizer)
36” (With Economizer)
3
Right Side (Cond. Coil)
36”
Below Unit
1
1.
Units 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 structures or
shrubs should not obstruct condenser air discharge outlet.
3. If economizer is factory installed, the unassembled rain hood
must be removed from its ride along position in front of evapora-
tor coil, or in the outdoor air compartment, prior to final installa-
tion.
72” With 36” Maximum
Horizontal Overhang (For
Condenser Air Discharge)
RE
A
R
V
IEW
DET
A
IL “
Y”
UNIT WITH R
A
IN HOOD
S
LH
V
IEW
2
8-3/1
6”
9
2”
3
6
-5/8
”
5
”
1
6
-1/8
”
S
UPPL
Y
A
IR
COMP
A
RTMENT
POWER E
X
H
A
U
S
T
R
A
IN HOOD
(on Return
A
ir Co
m
p
a
rt
m
ent)
ECONOMIZER
MOTORIZED
D
A
MPER
R
A
IN HOOD
(on Outdoor
A
ir Co
m
p
a
rt
m
ent)
ECONOMIZER / MOTORIZED D
A
MPER
A
ND POWER E
X
H
A
U
S
T R
A
IN HOOD
S
FI
X
ED
OUTDOOR
A
IR
INT
A
KE HOOD
(loc
a
ted on
Return
A
ir
Co
m
p
a
rt
m
ent)
1“ CONDEN
SA
TE
DR
A
IN
(Must be tr
a
pped)
