York 251934-YTG-J-0910 Technical Manual page 101

ZJ/ZR/ZF Unit Dimensions Rain Hood
Power Exhaust
Rain Hood
Supply Air
(on Return
Compartment
Air Compartment)
Rear View
ZJ/ZR/ZF180-300 Unit Clearances
Direction
1
Top
Front
Rear
1. Units must be installed outdoors. Over hanging structure or shrubs should not obscure condenser air discharge
outlet.
2. Units may be installed on combustible floors made from wood or class A, B or C roof covering materials.
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.
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.
Johnson Controls Unitary Products
Economizer Motorized
Damper Rain Hood
(on Outdoor
Air Compartment)
Unit with Rain Hoods
Distance (in.)
72 With 36 Maximum
Horizontal Overhang (For
Condenser Air Discharge)
36
24 (W/O Economizer)
49 (W/Economizer)
Economizer/Motorized Damper
and Power Exhaust Rain Hood
36-5/8"
16-1/8"
5"
28-3/16"
Detail "Y"
Direction
Right
2
Bottom
Left
251934-YTG-J-0910
Fixed
Outdoor Air
Intake Hood
(Located on
Return Air
1" Condensate
Compartment)
Drain (Must be
Trapped)
92"
LH View
Distance (in.)
36
0
24 (W/O Economizer)
3
36 (W/Economizer)
101