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262292-YTG-B-0107
48 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 14:UNIT DIMENSIONS WR180, 240 & 300 (RAINHOOD)
TABLE 35: MINIMUM CLEARANCES
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)
REAR VIEW
DETAIL “Y”
UNIT WITH RAIN HOODS
LH VIEW
28-3/16”
92”
36-5/8”
5”
16-1/8”
SUPPLY AIR
COMPARTMENT
POWER EXHAUST
RAIN HOOD
(on Return Air Compartment)
ECONOMIZER
MOTORIZED
DAMPER
RAIN HOOD
(on Outdoor Air Compartment)
ECONOMIZER / MOTORIZED DAMPER
AND POWER EXHAUST RAIN HOODS
FIXED
OUTDOOR AIR
INTAKE HOOD
(located on
Return Air
Compartment)
1“ CONDENSATE
DRAIN
(Must be tr
apped)