Engineered for direct compatibility

providing reliable flame sensing and ignition for residential and commercial units

What is the purpose of the 2-inch extended shank on this valve

providing a reliable interface for manual operation

Nordyne 632424R Pressure Switch Els PW 17895 Engineered for direct compatibilityThe Nordyne 632424R Pressure Switch is a critical safety component for HVAC technicians servicing Nordyne gas furnaces and air handlers. Engineered as a genuine OEM replacement part, this normally open SPST switch is factory calibrated to a 0. 77" WC (water column) trip point. It establishes a 24V control signal when the draft inducer motor successfully generates sufficient negative pressure, ensuring the combustion blower is operational before the