Excessive heat can cause the internal binder to fail or release captured moisture back into the system

While originally configured for 3

Fabricated with durable metal "tablock" construction

including FBD

Lennox 10M66 Limit Switch 323269-701 Excessive heat can cause theThe Lennox 10M66 Limit Switch is a critical safety component engineered for precise thermal monitoring in high efficiency gas furnaces and air handlers. For technicians diagnosing a Lennox furnace limit switch opening prematurely or failing to reset, this SPST (Single Pole Single Throw) thermal sensor provides the exact calibration required for OEM compliance and system safety. Operating on a normally closed circuit, the 10M66 is designed to break the