Refrigeration Vessels and Safety Devices

An evaporative condenser, air-cooled condenser, or tube-in-tube condenser that does not provide subcooling needs a receiver to collect the condensed refrigerant used by the system. The receiver, located between the condenser and the expansion valve, stores the entire refrigerant charge if the system is pumped down. It is usually nothing more than a steel tank with proper shut-off valves and a safety relief device.
Large receivers should have a level gauge so that you can check the refrigerant level easily. The liquid supply line leaving the receiver should exit at the bottom of the receiver. If it must exit at the top of the receiver, it should extend all the way to the bottom.

EXCERPT FROM Tecnical Institute Manuals available from the RSES Online Store

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