Lennox 75M31 Limit Control R-22 Smith 100346612 Burner Assembly is

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

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

Optimized Condensate Flow: Featuring a 1

Is this spring compatible with both natural gas and LP systems

Lennox 75M31 Limit Control R-22 Smith 100346612 Burner Assembly isThe 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