Lennox 75M31 Limit Control R-22 Optimized Condensate Flow: Featuring a

Optimized Condensate Flow: Featuring a 1

Smith 100346612 Burner Assembly is the only way to ensure the system returns to its original factory specifications

manual override during controller failure

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

Direct Plug-and-Play: Minimizes downtime durante field replacement by utilizing standard Reznor controller wiring harnesses

Lennox 75M31 Limit Control R-22 Optimized Condensate Flow: Featuring aThe 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