Lennox 36W77 Pressure Switch THPU32HP7Y check for physical obstructions in

check for physical obstructions in the intake pipe

facilitating streamlined field service repairs and maintaining factory-standard safety clearances within the electrical compartment

With a static pressure rating of 580 psig and graphite-reinforced PTFE seats capable of exceeding 200

Common Questions: Is this cell assembly compatible with all Carrier furnace models

Is the Emerson BVE-014 compatible with subcritical CO2 systems

Lennox 36W77 Pressure Switch THPU32HP7Y check for physical obstructions inAs 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