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The Bard 5202-020 suction accumulator is an OEM refrigerant system component designed to protect the compressor by trapping and metering any returning liquid refrigerant before it reaches the suction inlet. Specified as a 3/4 inch connection accumulator with a 0.040 orifice, it helps stabilize suction conditions and supports reliable operation on compatible Bard wall mounted and packaged HVAC equipment. Because accumulators are matched to system piping and refrigerant circuit requirements, confirm the 5202-020 part number against your unit model and service literature before ordering, and follow proper refrigerant recovery and brazing practices during replacement.