Scotsman FM1202R Service Manual page 16

FM1202R
COMPONENT DESCRIPTION: Control Box
Contactor: A definite purpose contactor
connecting the compressor and the remote
condenser fan motor to the power supply.
Circuit Board: Controlling the ice machine
through sensors and relays. The sensors are: ice
level, and water level. The relays are for the gear
motor (with a built in time delay to clear the
evaporator of ice when the unit turns off) and for
the liquid line valve.
ON/OFF SWITCH
PUMP DOWN CONTROL
POTENTIAL RELAY
TRANSFORMER
CIRCUIT
BOARD
Transformer: Supplies low voltage to the circuit
board.
Pump Down Control: An automatic reset
pressure switch connected to the low side of the
refrigeration system. Controls the compressor.
Potential Relay : The compressor start relay.
On/Off Switch: Manual control for the machine.
November 1992
Page 16
CONTACTOR