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Wiring diagram Optima 600-1100
Connecting to the power supply
B1: Phase sequence monitor
E3: Crankcase heating
E4: Any heating cable
F1: Miniature circuit breakers
G3: Fan
K1: Contactor compressor
M1: Compressor
MB2: Motor cut-out compressor
Q3: Four-way valve
R1: Soft starter
S1: Termination switch
HP: High pressure switch
LP: Low pressure switch
T6: Compressor hot gas
T8: Heat transfer ß uid out
T9: Heat transfer ß uid in
T10: Condenser
T11: Evaporator temperature
T12: Air intake
To Control cabinet
Blue
Brown
Black
G3
S1 must be in "Term" position on
the Þ rst and last circuit board in
the CANbus loop.
1) Strap
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