Dual-Function Sensing: Capable of monitoring either differential or static pressure across fans

Featuring a 22VAC coil voltage

and a high-response 30-inch screw-in thermocouple to ensure reliable flame rectification and safe gas valve operation

and Payne central air conditioning and heat pump models

and HFC blends

Lennox 36M62 Limit Switch 321894-708 Dual-Function Sensing: Capable of monitoringThe Lennox 36M62 Limit Switch is a high limit safety component engineered for precision thermal monitoring in residential and light commercial furnace repair applications. This OEM Lennox limit switch is factory calibrated to a 150F cut out temperature, functioning as a critical manual reset high limit switch to prevent heat exchanger damage or unsafe operating conditions. With a fixed 40F reset point, the 36M62 ensures the burner circuit is