036-21020-003 Rev. C (0203)
Unitary Products Group 11
TYPICAL INSTALLATION
TYPICAL FIELD WIRING - 1 PHASE APPLICATION
L INSTALLATION
THERMOSTAT
TO
INDOOR
BLOWER
TO COIL
NEC
CLASS 2
WIRING
NEC
CLASS 1
WIRING
TO
POWER
SUPPLY
WEATHERPROOF
DISCONNECT
SWITCH
Seal opening(s) with permagum
or equivalent
24” SERVICE ACCESS
CLEARANCE
48” OVERHEAD
CLEARANCE
12” REAR AND
SIDES
NOTE: All outdoor wiring must be weatherproof
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
POWER WIRING
208/230-1-60
CONTACTOR
TERMINALS
COIL
GND.
LUG
CYRGW
YRGW
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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