Ice-O-Matic GEM0650R Pump Down, GEM0650/0956/1256 Remote, Operation Refrigeration, Page, Line

GEM0650/0956/1256 Remote Operation: Refrigeration

Pump Down

During the pump down cycle (usually initiated by the circuit board de-energizing the liquid line valve) the discharge gases flow through their normal path to the remote condenser, through the head pressure control and into the receiver. At this point the refrigerant flow is stopped by the closed liquid line valve.

This action forces the refrigerant into the receiver and keeps it out of the compressor. The pump down continues until the pump down control opens turning the compressor off.

Refrigeration Schematic

Remote Condenser

Discharge	Liquid Line
Line

Liquid Line Valve (Closed)

Head Pressure

Control Valve

Receiver Compressor

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