An accumulator is designed to prevent what from reaching the compressor?

An accumulator plays a vital role in a refrigeration or air conditioning system by ensuring that only vapor refrigerant reaches the compressor. When the refrigerant circulates through the system, it may sometimes carry liquid refrigerant along with it. Liquid refrigerant entering the compressor can cause significant damage, including mechanical failure, because compressors are designed to compress gas, not liquid.

The accumulator collects excess liquid refrigerant that may accumulate in the system, particularly during low-load conditions, and allows only vapor to pass through to the compressor. This mechanism protects the compressor from liquid slugging, which can lead to severe performance issues or a complete breakdown of the system.

Understanding the function of an accumulator is essential for managing the efficiency and longevity of refrigeration systems, emphasizing its role in maintaining optimal operational conditions by preventing liquid refrigerant from reaching the compressor.