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The B1226206 is a genuine OEM suction-line accumulator engineered for the Goodman ASZ130301AH 13 SEER, 2.5-ton heat pump condensing unit. Installed on the compressor suction line, it separates liquid refrigerant from vapor during defrost and low-ambient heating, releasing it back to the compressor at a controlled rate. This prevents liquid slugging — a leading cause of compressor valve and bearing failure — making the accumulator a key protective component on any heat pump.
The OEM B1226206 matches Goodman's exact internal volume and J-tube design so oil return and liquid hold-back suit the ASZ13 charge. Universal accumulators cost less but demand field verification of volume, port orientation, and stub sizing; a mismatch can starve the compressor of oil. For a factory-correct fit and preserved warranty coverage, the OEM part is the recommended choice.
Advanced (4/5) — Requires EPA 608 certification. Recover the refrigerant, unbraze the old accumulator, braze in the replacement under a nitrogen purge, then evacuate and recharge to nameplate. This is sealed-system work for a licensed HVAC technician.