Lennox 36W77 Pressure Switch THPU32HP7Y Common Questions: Is this cell

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

check for physical obstructions in the intake pipe

Multi-Refrigerant Compatibility: Designed for use with R-404A

this 6-inch copper float is engineered from high-grade copper with firmly bonded overlapping joints to ensure structural integrity in non-potable cooling tower water systems and HVAC make-up water tanks

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

Lennox 36W77 Pressure Switch THPU32HP7Y Common Questions: Is this cellAs 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