Lennox 36W77 Pressure Switch 321042-401 preventing vibration-induced noise or mechanical

preventing vibration-induced noise or mechanical interference with the fan blades

This HVAC expansion valve is a critical replacement for maintaining the long-term operational integrity of Carrier and Bryant air handling units

Is the actuator replaceable

Its durable construction resists blade deformation under high-velocity operation

reducing wear on actuator linkages and internal seals

Lennox 36W77 Pressure Switch 321042-401 preventing vibration-induced noise or mechanicalAs 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