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251934-YTG-G-0708
98 Johnson Controls Unitary Products
ZJ/ZR/ZF180-300 Unit Dimensions
ZJ/ZR Unit Dimensions Front View
NOTE: All entry holes should be field sealed to prevent rain water
entry into the building.
11-1/2
(A) CONTROL WIRING
ENTRY
COIL
GUARD
KIT
CONDENSER
COILS
(B) POWER
WIRING
ENTRY
5
9-3/4
21.00
6-3/8
7-1/8
35
5-7/8
136-1/4
GAS OR ELECTRIC
HEAT
ACCESS
DOT PLUG
(For pressure
drop reading)
BLOWER
COMPARTMENT
ACCESS
(Auxiliary)
(C) GAS
SUPPLY
ENTRY
CONTROL BOX
ACCESS
VENT AIR
OUTLET
HOODS
BLOWER MOTOR
ACCESS (Location
of Optional VFD Bypass)
BLOWER ACCESS
(Location of
Optional VFD)
52-5/8
180-19/32
COMPRESSOR ACCESS
DISCONNECT
SWITCH
LOCATION
ECONOMIZER / MOTORIZED DAMPER
FIXED OUTDOOR INTAKE AIR AND
POWER EXHAUST RAIN HOODS
(See detail Y)
92
46-5/8
35-1/4
33
2-3/4
3-3/4
(B) POWER WIRING
ENTRY
BOTTOM SUPPLY
AND RETURN
AIR OPENINGS
(See Note)
(A) CONTROL WIRING
ENTRY
21-1/2
11-1/8
(D)
GAS SUPPLY
ENTRY
UNIT BASE RAILS
Shown separately to illustrate
RETURN
AIR
Bottom Duct openings. Power
and Gas Piping Connection
location.
NOTE:
For curb mounted units, refer to the curb hanger
dimensions of the curb for proper size of the
supply and return air duct connections.
12-1/2
9-1/4
8-1/8
46-5/8
9-3/4
COMBUSTION
AIR INLET HOOD
SUPPLY
AIR
Utilities Entry
Hole
Opening Size
Diameter
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
C 2-3/8” KO Gas Piping (Front)
1
1. One-inch Gas Piping NPT Required.
D 1-11/16” Hole Gas Piping (Bottom)
1,2
2. Opening in the bottom to the unit can be located by the slice in the
insulation.