Which component collects excess refrigerant on the low side (Suction Line) of a refrigeration system?

• A. Condenser
• B. Accumulator
• C. Receiver
• D. Compressor

Answer: (B)

An accumulator protects the compressor by catching any excess liquid refrigerant that may enter the suction line. It sits on the low-pressure side as a reservoir, allowing vapor to pass to the compressor while liquid is stored away. This prevents liquid slugging, which can damage the compressor’s components. The condenser operates on the high-pressure side to condense refrigerant, the receiver stores liquid on the high side after the condenser, and the compressor is the pump that increases pressure. So the device that collects excess refrigerant on the low side is the accumulator.