Nordyne 632322 Flame Sensor 320720-756 and unit heaters by sensing

and unit heaters by sensing positive

Before installation

This HVAC reversing valve is frequently identified as a replacement for discontinued units like the EF17BZ279 and has been superseded by the EF17BZ278 (LDK-11)

as a standing pilot thermocouple

the Lennox 79J89 (also referenced as 79J8901) offers a direct-fit solution for maintaining HVAC system reliability

Nordyne 632322 Flame Sensor 320720-756 and unit heaters by sensingThe Nordyne 632322 Flame Sensor is a precision engineered OEM replacement part designed to ensure high accuracy flame rectification in residential and commercial gas furnaces. Built for rigorous duty cycles, this flame sensor probe monitors the burner during the ignition sequence to confirm a stable flame is present. It serves as a critical fail safe component; if the sensor fails to detect a microamp signaltypically due to carbon buildup or electrode