Electrical Component Details - Scotsman C2648 - SERVICE MANUAL 11-2010 Service Manual

C2648 Service Manual

Electrical Component Details

Compressor
•
Operated by the compressor contactor.
Contactor
•
Operated by the controller and the high pressure cut out switch. Line voltage coil. When energized
the Compressor indicator light will be ON.
Water Pumps
•
Operated by the controller, one of them thru a NC relay. When the Pump light is ON during a Freeze
cycle, both pumps should be operating. When the Pump and Purge lights are both ON, one pump
will be ON and one will be OFF.
Inlet Water Solenoid Valve
•
Operated by the controller. Line voltage coil. When energized, the Water Solenoid indicator light will
be ON.
Purge Valve
•
Operated by the controller. Line voltage coil. When energized, the Purge Valve indicator light will be
ON. Energized for a time during harvest.
Fan Motor
•
Remote condenser fan motor is on whenever the compressor is.
High pressure cut out
•
There is a high pressure cut out switch that shuts the power off to the compressor contactor if the
discharge pressure is too high. It is an automatic reset.
Harvest Assist Solenoids
•
Operated by the controller through a relay. In parallel with the hot gas valve. Cycles on and off at
the beginning of a restart. Energized throughout the harvest cycle. Line voltage coil.
Liquid Line Valve
•
Opened by the controller to start a freeze cycle. Closed to shut unit off. Line voltage coil.
Hot Gas Valves
•
Operated by the controller through a relay. In parallel with the harvest assist solenoid. Cycles on
and off at the beginning of a restart. Energized throughout the harvest cycle. Line voltage coil.
November 2010
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