GEM0650/0956/1256 Remote | Operation: Refrigeration |
Low Condensing Temperature
The refrigeration system under low condenser air temperatures is much the same as it is under higher temperatures, with the exception that the resulting low head pressures cause the head pressure control to close off the liquid line between the condenser and the receiver.
This forces more refrigerant into the condenser (with a small amount of discharge gas going into the receiver to maintain pressure until the head pressure is built back up to 180 PSIG). At that pressure the valve opens up the liquid line from the condenser to the receiver.
Refrigeration Schematic
Remote Condenser
Discharge | Liquid Line |
Line |
Detail of Head Pressure Control Valve
Liquid Line Valve
Thermostatic Expansion Valve
Head Pressure
Control Valve
Evaporator
Receiver |
| Compressor |
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