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Its durable construction resists blade deformation under high-velocity operation
Universal Compatibility: Optimized for 4H/2C systems
verify if your specific repair requires a separate thermopile or igniter kit
Key Benefits for the Contractor OEM Compatibility: Exact drop-in replacement for 9003542105
Lennox 36W77 Pressure Switch 321042-401 Its durable construction resists bladeAs a seasoned technician, you know that a failing 2 stage pressure switch can ground a high efficiency furnace during the peak of the heating season. The Lennox 36W77 is a dual stage assembly engineered specifically for variable capacity and modulating furnaces, such as the G71MPP series. This genuine HVAC OEM part features two distinct set pointsa Low Fire stage at 0. 25" W. C. and a High Fire stage at 1. 22" W. C.to ensure the inducer motor is