Lennox 46K72 Limit Switch 319852-301 This spring return actuator is

This spring return actuator is configured for normally open operation

this valve facilitates reliable burner output and consistent temperature modulation

HVACR technicians can significantly extend the service life of their Red Hat components without the expense of a full valve replacement

Field Serviceability: Features an O-ring sealed gauge tap and adjustable bimetal for accurate calibration

Lennox 46K72 Limit Switch 319852-301 This spring return actuator isThe Lennox 46K72 Limit Switch is a critical safety component designed for precise thermal regulation within residential and commercial HVAC units. Engineered with a 250 degree Fahrenheit cutout and a 220 degree Fahrenheit reset, this auto reset limit switch prevents heat exchanger damage by breaking the electrical circuit if internal plenum temperatures exceed safe operating limits. This specific L250 30 model features a manual reset safety bypass or