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The Goodman 20171701 Condensate Drain Trap is the genuine OEM trap assembly for the ACVC950915DXAC high-efficiency condensing furnace and related models. In a 95% AFUE furnace, the secondary heat exchanger pulls so much heat from the flue gases that water vapor condenses and must be drained away. This trap provides the water seal that lets condensate exit while blocking flue gases from escaping into the cabinet or living space — a function critical to both performance and safety.
The OEM 20171701 is molded to the furnace's exact port spacing and seal geometry, so it mates correctly with factory drain hoses without adapters or modification. Generic traps often require trimming or extra fittings, increasing the chance of leaks and pressure-switch faults. For a clean, leak-free seal, the OEM trap is the reliable choice.
Easy to Moderate — power down the furnace, disconnect and drain the existing trap, swap in the new unit, and reconnect the drain hoses. No tools beyond pliers are typically needed. Prime the trap with water and verify free drainage before restoring power.