Lennox 83L75 Limit Switch 322056-301 this grey-enclosure unit is the

this grey-enclosure unit is the 025-36433-001 direct cross replacement for legacy systems

Accurate temperature feedback is critical for proper system control and efficiency

you should source a full pump bolt and gasket kit separately to ensure a secure high-pressure seal

Two-Stage Regulation: Optimizes fuel delivery for improved thermal efficiency and reduced cycling wear on the heat exchanger

and eight replacement screws for the aluminum housing cover

Lennox 83L75 Limit Switch 322056-301 this grey-enclosure unit is theThe Lennox 83L75 Limit Switch is a critical safety component designed for HVAC furnace flame roll out and high limit protection. Engineered to Lennox OEM specifications, this auto reset thermal limit switch operates within a precision range of 100 145F. As a primary safety device, the 83L75 monitors temperature spikes within the heat exchanger and interrupts the burner circuit if thresholds are exceeded to prevent system damage or hazardous operation.