505429-JTG-L-0512
Johnson Controls Unitary Products 121
Typical Field Wiring Diagram - J07NC Evaporator Unit with J07YC Condenser Unit
NOTE: On non J**NC/ND Evaporator models, isolation
relays must be installed to avoid overloading on 75
VA transformers on the condensing unit.
G C
Y1
RW1 W2
THERMOSTAT
SINGLE STAGE COOLING
TWO STAGE HEATING
X
NOTE: Liquid line solenoid is not included or required
on 7.5 Ton Single Stage Units.
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