An accumulator in a refrigerant system is a safety device that prevents liquid refrigerant from entering the compressor.

• A. False
• B. It stores refrigerant
• C. It filters impurities
• D. True

Answer: (D)

An accumulator acts as a separator on the suction side of the system. It gives any liquid refrigerant returning from the evaporator a place to drop out of the vapor, so only gas reaches the compressor. This prevents liquid slugging, which can damage the compressor during startup or shutdown. While it may hold some refrigerant, its primary purpose is to keep liquid refrigerant from entering the compressor, not to store refrigerant or to filter impurities. So the statement is true.