Yuh Dak SIC-A series - Manual (Page 69)

10.13 SIC-50A-P Electrical circuit
10.13.1 Control circuit
Pump switch
Connect to the Temp.
Controller
10-29
10. Electrical Circuit
Pump
motor Compressor
Crankcase
heating zone
(obligate)
Compressor
Crankcase
heating zone
(obligate)
Compressor
Crankcase
heating zone
(obligate)
Compressor The motor of the fan
contactor The motor of the fan
contactor The motor of the fan
contactor
Obligate to connect the optional constant close point of the
protector. When not need to connect the protector, it can
connect short.
Crankcase
heating zone
(obligate)