Lennox 41J81 Orifice R-407A This official Nortek Global HVAC

This official Nortek Global HVAC kit provides a reliable wired connection to the system control board

Common Technical Questions: What causes a weak flame signal with this sensor

Operating at higher pressures than R-22

This specific part is listed for HE

Disconnect power and inspect the shaft for scoring or signs of "play" near the bearings

Lennox 41J81 Orifice R-407A This official Nortek Global HVACThe Lennox 41J81 Orifice is a precision engineered #54 LP straight orifice designed specifically for Liquid Propane gas conversions and pressure regulation in residential and light commercial HVAC systems. This replacement gas orifice features a specialized 0. 055 inch drill size, ensuring the calibrated flow rate necessary to maintain proper manifold pressure and optimal combustion efficiency. Engineered for durability, this Lennox gas burner part