Fabricated with durable metal "tablock" construction

this cold end header box acts as the central recovery point for acidic condensate produced during the combustion process

While originally configured for 3

delivering a substantial steam discharge rate of 2

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

Lennox 10M66 Limit Switch 323269-701 Fabricated with durable metal "tablock"The 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