628792-BTG-G-0418
12 Ducted Systems
Typical Field Wiring Diagrams
Typical Field Wiring Diagram NJ-30/-40 Evaporator Units, NJ-50 Air Handler and MACZ-50A Evaporator Coil when
Matched with YJ-30, -40, -50 Condenser
NOTE: Typical field wiring when OD unit is matched with NJ air handler. When matching condensing unit with models other
than NJ an additional control transformer is required on the Indoor unit.
C S1 S2 G1 G2 S3 S4
W1 W2 Y1 G Y2 0CC CX R SD-24
SE CONTROL BOARD
THERMOSTAT CONNECTIONS
TB2
CONDENSER CONTROL BOX
EVAPORATOR CONTROL BOX
THERMOSTAT
FOUR STAGE COOL
R C Y1 Y2 G Y3 Y4
W1 W2 Y1 G Y2 0CC CX R SD-24
C S1 S2 G1 G2 S3 S4 TB1
SYSTEM 1
SYSTEM 2
UCB 2
UCB 1
1 2 3 4
POWER SUPPLY
208/230, 460
OR 575-3-60
LIQUID LINE
SOLENOID VALVES
EVAPORATOR
BLOWER MOTOR
CONTACTOR
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