York 036-21103-003 specifications Typical Field Wiring 1 PH Application 018S78 036S78

036-21103-003 Rev. A (0403)

TYPICAL FIELD WIRING - 1 PH APPLICATION (018S78 - 036S78)

ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES

POWER WIRING

230-1-50

CONTACTOR

TERMINALS

GND.

24 VOLT CONTROL WIRING MINIMUM 18 GA. WIRE (NEC CLASS 2)

*TERMINAL W IS ONLY REQUIRED ON SYSTEMS WITH HEAT.

POWER WIRING

CONTROL WIRING

FACTORY WIRING

FURNACE OR AIR HANDLER TERMINAL BLOCK

C Y R G W

LUG

COIL

Y R G W *

CONDENSING UNIT ROOM THERMOSTAT

ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.

TYPICAL FIELD WIRING - 3 PH APPLICATION (036S50 - 060S50)

ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES

POWER WIRING

380/415-3-50

CONTACTOR

TERMINALS

GND.

LUG

COIL

24 VOLT CONTROL WIRING MINIMUM 18 GA. WIRE (NEC CLASS 2)

*TERMINAL W IS ONLY REQUIRED ON SYSTEMS WITH HEAT.

POWER WIRING

CONTROL WIRING

FACTORY WIRING

FURNACE OR AIR HANDLER TERMINAL BLOCK

C Y R G W

Y R G W *

CONDENSING UNIT ROOM THERMOSTAT

ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.

6 Unitary Products Group