accommodating the varying internal geometries found in multi-position coils without requiring additional field modifications

disconnecting the internal membrane if pressure builds due to excessive heat or electrical stress

Common HVAC Technical Questions:

Constructed with precision-balanced internal components

providing a reliable electrical interrupt when thermal limits are reached

Lennox 36W77 Pressure Switch Freon accommodating the varying internal geometriesAs 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