Which location is common for the accumulator in the A/C system?

The accumulator is an essential component of the air conditioning system, primarily found on the low-pressure side of the system. Its main function is to collect and store excess refrigerant vapor that exits the evaporator while ensuring that no liquid refrigerant flows back into the compressor.

Being located on the low-pressure side ensures that the refrigerant entering the accumulator has already absorbed heat and undergone a phase change into a vapor state, making it safer for the compressor, which is designed to compress vapor rather than liquid. This minimizes the risk of compressor damage and enhances the efficiency of the system.

By keeping excess refrigerant vapor available in the accumulator, the system can maintain optimal performance and prevent liquid slugging, which could otherwise occur if liquid refrigerant reached the compressor. The accumulator thus plays a vital role in maintaining proper refrigerant flow and function within the A/C system.