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Used on Spring Return Valves 2 1/2"-3"
provided the flue and inducer are clear
you must use the corresponding 120V Robertshaw infinite switch to ensure proper bimetal calibration and safety
While the 20-inch diameter is common
By ensuring the bleed port and restriction elbow are clear and properly seated
York S1-7990-317P/A Motor Els PW 17895 Used on Spring Return ValvesThe York S1 7990 317P A Motor is a high performance inducer motor specifically engineered for gas downflow and mobile home furnace applications. Operating at 120Vac with a single phase configuration, this unit delivers a consistent 2950 RPM to ensure optimal drafting and proper combustion venting. Designed with a robust C frame construction and a CCW lead end rotation, this booster motor is an essential component for maintaining static pressure and