036-21105-004 Rev. A (0902)
Unitary Products Group
5
TYPICAL FIELD WIRING
TYPICAL FIELD WIRING - 1 PHASE
TYPICAL FIELD WIRING - 3 PHASE
CONTROL
WIRING
LOW VOLTAGE
JUNCTION BOX
POWER
WIRING
GROUND
LUG
ALL OUTDOOR WIRING MUST BE WEATHERPROOF.
USE COPPER CONDUCTORS ONLY.
POWER WIRING
230-1-50
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 18GA. WIRE
(NEC CLASS 2)
FURNACE OR AIR HANDLER TERMINAL BLOCK
ROOM THERMOSTAT
CONDENSING UNIT
TERMINAL W IS
ONLY REQUIRED
ON SYSTEMS
WITH HEAT.
*
*
POWER WIRING
380/415-3-50
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 18GA. WIRE
(NEC CLASS 2)
FURNACE OR AIR HANDLER TERMINAL BLOCK
ROOM THERMOSTAT
CONDENSING UNIT
TERMINAL W IS
ONLY REQUIRED
ON SYSTEMS
WITH HEAT.
*
*
