With flooded condenser control we can provide reliable operation when the outdoor temperature is as low as -34 deg C.
The components required are, heated and insulated receivers and a head pressure control valve.
The heated and insulated receivers maintain sufficient pressure for starting at -34 deg C.
The head pressure control valve restricts the flow of refrigerant from the condenser in the cold weather. T
his causes the refrigerant to back up in the condenser which reduces the effective condenser surface. As the head pressure control valve is restricting flow from the condenser it is also bypassing hot-gas into the receiver insuring proper head pressure is maintained.