Lennox 83L83 Limit Switch Engineered with an aluminum core

Engineered with an aluminum core and a porous water-retention coating

Can I use this orifice for natural gas (NG) applications

Steam-Rated Durability: Suited for VS series bodies handling fluid up to 250°F and 15 PSIA saturated steam

the high limit switch may be stuck open or tripped due to restricted airflow

Lennox 83L83 Limit Switch Engineered with an aluminum coreThe 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