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The Goodman B1226206 is a genuine OEM suction-line accumulator for the ANZ130241AA heat pump. In heat-pump mode, refrigerant can return to the compressor as liquid — especially during defrost and reversing-valve cycles. The accumulator stores that liquid and meters it back as vapor, protecting the compressor from liquid slugging that causes valve and bearing failure.
This OEM accumulator matches the factory volume, port sizing, and oil-return orifice for this unit — critical for proper compressor oil management. An undersized or mismatched generic accumulator can starve the compressor of oil or fail to protect against slugging. Given the compressor it safeguards, OEM is strongly recommended.
Professional / EPA-certified only. Replacement requires recovering refrigerant, brazing the suction line, pulling a vacuum, and recharging to spec — work that legally requires EPA Section 608 certification. This is not a DIY part. Purchase the genuine component and have a licensed HVAC technician perform the swap.