Lennox 45L14 Orifice Field Interchangeability: Identified by its

Field Interchangeability: Identified by its yellow color code for rapid identification and error-free installation

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

5 microfarad 440Vac rectangular run capacitor is common in York

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

Does this fit Lennox rooftop units

Lennox 45L14 Orifice Field Interchangeability: Identified by itsThe 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