Lennox 69M40 Limit Switch 322057-301 this two-way normally closed valve

this two-way normally closed valve provides precise flow control in HVAC systems

serving as the logic center for monitoring coil temperatures and managing timing intervals

Optimized Performance: Restores efficient airflow and proper manifold pressure for reliable ignition and combustion

The unit features a 72-inch capillary tube

Lennox 69M40 Limit Switch 322057-301 this two-way normally closed valveThe Lennox 69M40 Limit Switch is a critical OEM safety component engineered for precise thermal monitoring in residential and commercial heating systems. This L170 40F limit switch operates on an automatic reset logic, featuring a fixed cut out temperature of 170F and a cut in temperature of 140F. Designed as a genuine Lennox replacement part, the 69M40 ensures consistent circuit interruption to prevent heat exchanger damage or hazardous overheating