Lennox 75M31 Limit Control R-22 Durable Construction: Engineered with high-grade

Durable Construction: Engineered with high-grade components to resist membrane fatigue and electrical contact pitting

Is this spring compatible with both natural gas and LP systems

Optimized Airflow: Engineered to provide the required static pressure to engage the furnace pressure switch and clear the heat exchanger

Optimized Condensate Flow: Featuring a 1

Lennox 75M31 Limit Control R-22 Durable Construction: Engineered with high-gradeThe Lennox 75M31 Limit Control is a critical OEM replacement part designed to maintain safe thermal operating parameters within residential and commercial HVAC systems. As a primary high limit switch, this component utilizes a precise L170 40F calibration, meaning the normally closed contacts are engineered to open when the heat exchanger surface temperature reaches 170F. Once the circuit is interrupted, the burner ignition or heating source is