What is the purpose of a suction line accumulator in a refrigeration system?

The purpose of a suction line accumulator is to prevent liquid refrigerant from entering the compressor. In a refrigeration system, the accumulator collects any liquid refrigerant that may be present in the suction line before it reaches the compressor. If liquid refrigerant enters the compressor, it can cause hydraulic shock, damaging the compressor, which is designed to compress vapor rather than liquid. By allowing only vapor to reach the compressor, the accumulator ensures the safe operation of the system and helps maintain its longevity and efficiency.

While other components or functions in a refrigeration system can aid efficiency or monitor flow, the primary and crucial role of the suction line accumulator is specifically related to protecting the compressor from liquid refrigerant ingestion.