251934-YTG-G-0708
Johnson Controls Unitary Products
101
ZJ/ZR/ZF Unit Dimensions Rain Hood
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.
ZJ/ZR/ZF180-300 Unit Clearances
Direction
Distance (in.)
Direction
Distance (in.)
Top
1
1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge
outlet.
72 With 36 Maximum
Horizontal Overhang (For
Condenser Air Discharge)
Right
36
Front
36
Bottom
2
2. Units may be installed on combustible floors made from wood or class A, B or C roof covering materials.
0
Rear
24 (W/O Economizer)
Left
24 (W/O Economizer)
49 (W/Economizer)
36 (W/Economizer)
3
3. If economizer is factory installed, the unassembled rain hood must be removed from its ride along position in front of
the evaporator coil, or in the outdoor air compartment, prior to final installation.
LH View
92”
28-3/16”
36-5/8”
5”
16-1/8”
Rear View
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 Hood
Fixed
Outdoor Air
Intake Hood
(Located on
Return Air
Compartment)
1” Condensate
Drain (Must be
Trapped)
Detail “Y”
Unit with Rain Hoods
