Car A/C Valves in Receiver System

 
By 30 March 2015
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The valves-in-receiver type system is another older General Motors design. The controls – expansion valve and pilot operated absolute suction throttling valve – are located in the same housing as the receiver-drier. This unit is mounted in the high pressure side between the condenser and the evaporator inlet.

Like the standard suction throttling valve type system, the valves-in-receiver (VIR) system requires continuous compressor operation whenever cooling is required. The VIR unit controls refrigerant flow to the evaporator and to the compressor.