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the Lennox 36N77 and 36N7701 are functionally and physically identical
The Rheem-Ruud 47-21663-01 Limit Switch is a high-precision
an "increase to close" or dedicated fan/limit controller is required
High Output Performance: Provides a consistent 25-35 mV open circuit output to maintain reliable gas valve hold-in
York S1-7990-314P Inducer Motor Els PW 17895 the Lennox 36N77 and 36N7701The York S1 7990 314P Inducer Motor is an OEM replacement part designed for high efficiency combustion air delivery in residential furnace systems. Operating at 115Vac, this single phase, C frame inducer motor delivers a constant 2900 RPM to ensure proper drafting of combustion byproducts through the heat exchanger. The unit features CCW lead end rotation and is engineered to maintain precisely calibrated static pressure, allowing the furnace pressure
