Receiver Dryer: Description and Operation

From the receiver (dryer), gas exits at low pressure and temperature 0-10 °C (32-50 °F). The receiver (dryer) has a four-way function:
- It removes any moisture from the refrigerant using a drying agent.
- It tops up the refrigerant if there is a leak.
- It separates any drops in the refrigerant so that only gas passes to the compressor.
- It returns oil to the gas passing to the compressor.