Lennox 75M31 Limit Control R-22 Optimized Airflow: Engineered to provide

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

Is this spring compatible with both natural gas and LP systems

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

including COM6765 and COM10024

OEM Fit and Finish: Eliminates installation bottlenecks by matching factory dimensions for suction box and coil interfaces

Lennox 75M31 Limit Control R-22 Optimized Airflow: Engineered to provideThe 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