Universal Lennox Compatibility: Integrated into a wide range of Lennox Elite and Merit series furnaces and air handlers

System Protection: Helps prevent dust and debris from entering the rear of the control unit

press the manual reset button located between the terminals until it clicks to restore the circuit

Reduced Maintenance: Smooth interior surfaces minimize residue accumulation

Nordyne 661042R Burner Orifice Universal Lennox Compatibility: Integrated intoThe Nordyne 661042R Burner Orifice is a precision engineered OEM replacement part designed for high efficiency LP gas furnace conversion and maintenance. Featuring a strictly calibrated . 042 orifice size (industry standard #42 drill size), this component is critical for regulating the manifold pressure and gas velocity in low pressure propane systems. As a veteran grade HVAC replacement part, it ensures the correct stoichiometric air to fuel ratio,