Lennox 45L14 Orifice System Protection: Acts as a

System Protection: Acts as a primary defense against cracked heat exchanger hazards and backdrafting

Thermal Safety: Precision 165 degree open / 135 degree close settings protect the primary heat exchanger from warping or cracking

It mounts to the back of the inducer motor shaft to provide dedicated airflow over the motor windings

This replacement sensor lead features factory-terminated connectors for a secure

Does this fit Lennox rooftop units

Lennox 45L14 Orifice System Protection: Acts as aThe Lennox 45L14 LP Gas Burner Orifice is the direct performance grade replacement for the legacy LB 94569 model, specifically engineered for liquid propane (LP) conversion and maintenance in Lennox heating units. Built from high density brass to withstand the corrosive properties of constant gas exposure and thermal cycling, this component features a precision drilled . 055" orifice diameter. This exact sizing is critical for metering gas flow at the