York 12 SEER H*RC018 THRU 060 Technical Manual page 13

TYPICAL INSTALLATION
60" OVERHEAD
CLEARANCE
10" CLEARANCE
COIL AREA
NOTE: ALL OUTDOOR WIRING
MUST BE WEATHERPROOF.
TYPICAL FIELD WIRING - 1 Phase Application
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
POWER WIRING
208/230-1-60
CONTACTOR
TERMINALS
GND.
LUG
COIL
CONDENSING UNIT
ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.
TYPICAL FIELD WIRING - 3 Phase Application
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
POWER WIRING
208/230-3-60
460-3-60
CONTACTOR
TERMINALS
GND.
LUG
COIL
CONDENSING UNIT
ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.
Unitary Products Group
MINIMUM 18" SERVICE ACCESS
CLEARANCE ON ONE SIDE
WEATHERPROOF
DISCONNECT
SWITCH
CONTROL ACCESS PANEL
24 VOLT CONTROL WIRING
MINIMUM 18 GA. WIRE
(NEC CLASS 2)
FURNACE OR AIR HANDLER TERMINAL BLOCK
24 VOLT CONTROL WIRING
MINIMUM 18 GA. WIRE
(NEC CLASS 2)
*
TERMINAL W IS ONLY
REQUIRED ON SYSTEMS
WITH HEAT.
036-21137-004 Rev. C (0505)
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
POWER WIRING
CONTROL WIRING
FACTORY WIRING
C Y R G W
*
R
Y G W
ROOM THERMOSTAT
FURNACE OR AIR HANDLER TERMINAL BLOCK
C Y R
Y R
ROOM THERMOSTAT
*
TERMINAL W IS ONLY
REQUIRED ON SYSTEMS
WITH HEAT.
POWER WIRING
CONTROL WIRING
FACTORY WIRING
G W
*
G W
13