New OE 1997-2004 Corvette air condition accumulator. Original Equipment A/C Accumulators are used in air condition systems with an orifice tube metering device. The accumulator is located between the evaporator and the compressor, and serves to capture and store excess liquid refrigerant. This prevents liquid refrigerant from entering the compressor where it can damage the compressor. Note: Recommended replacement when recharging AC system or replacing compressors.