430648-JIM-D-1010
Johnson Controls Unitary Products
15
Figure 6: Typical Field Wiring Diagram - J10 thru J20ND Evaporator Unit with J10 thru J20YD 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.
THERMOSTAT
TWO STAGE COOLING
TWO STAGE HEATING
G C
Y1
R
W1 W2
X
Y2
NOTE: Liquid line solenoid is not included or required
on any 4 pipe units.
