This 8 cubic inch unit features a 1/2 SAE flare connection

making it ideal for tight spaces in condensing units or evaporator coils

It is engineered with a 160-degree F fixed open temperature and a 140-degree F fixed close temperature

the P271100 is the correct replacement flame sensor for maintaining the mechanical integrity of both top vent and direct vent furnace configurations

Common Questions Can I use a 440V capacitor to replace the 370V Lennox 89M76

Lennox 83L83 Limit Switch This 8 cubic inch unitThe Lennox 83L83 Limit Switch is a critical safety component designed for precise thermal regulation within residential gas furnaces. As a genuine Lennox OEM replacement part, this auto reset limit switch is engineered to open the electrical circuit to the gas valve if the plenum temperature exceeds the 180F safety threshold, preventing heat exchanger damage. Once the temperature drops to approximately 150F, the switch automatically closes to resume