Lennox 83L75 Limit Switch 322056-301 Rugged Construction: Closed-face type housing

Rugged Construction: Closed-face type housing protects the internal SPST contact from dust and moisture ingress

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

Accurate temperature feedback is critical for proper system control and efficiency

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

Simplified Installation: Standard threading and lightweight design allow for rapid field replacement by licensed contractors

Lennox 83L75 Limit Switch 322056-301 Rugged Construction: Closed-face type housingThe 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.