036-21573-001 Rev. A (0304)
6
Unitary Products Group
TYPICAL INSTALLATION
TYPICAL FIELD WIRING
MINIMUM 18” SERVICE ACCESS
CLEARANCE ON ONE SIDE
60” OVERHEAD
CLEARANCE
6” CLEARANCE
AROUND PERIMETER
WEATHERPROOF
DISCONNECT
SWITCH
THERMOSTAT
TO FURNACE OR
AIR HANDLER
TERMINAL BLOCK
NEC CLASS 1 WIRING
NEC CLASS 2 WIRING
TO INDOOR COIL
SEAL OPENING(S) WITH
PERMAGUM OR EQUIVALENT
CONTROL
ACCESS PANEL
NOTE: ALL OUTDOOR WIRING
MUST BE WEATHERPROOF.
ALL FIELD WIRING TO BE IN ACCORDANCE WITH NATIONAL ELECTRIC CODE (NEC) AND/OR LOCAL CODES
POWER WIRING
208-230, 1 , 60 Hz
f
CONTACTOR
TERMINALS
COIL
GND.
LUG
C
Y
R
G
W
Y
R
G
W
POWER WIRING
CONTROL WIRING
FACTORY WIRING
24 VOLT CONTROL WIRING
MINIMUM 18 GA. WIRE
(NEC CLASS 2)
FURNACE OR AIR HANDLER TERMINAL BLOCK
ROOM THERMOSTAT
CONDENSING UNIT
ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.
TERMINAL W IS ONLY
REQUIRED ON SYSTEMS
WITH HEAT.
*
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