Lennox 50W74 Gas Valve

The Lennox 50W74 is a direct replacement White-Rodgers 36G24-463 natural gas valve designed for high-efficiency Lennox gas furnaces. This single-stage gas valve operates on a 24V redundant solenoid system, featuring a 1/2" NPT inlet/outlet configuration for standard manifold alignment. Engineered for precision fuel regulation, it utilizes an intermittent pilot ignition or direct spark system depending on the furnace control board configuration. The 50W74 is critical for maintaining safe combustion cycles, managing gas flow with a high-performance internal regulator to ensure consistent manifold pressure. As a standard HVAC replacement part for G40, G41, and G50 series units, this valve provides the reliability required for multi-position installations. Its compact footprint allows for easier integration in tight furnace cabinets, while the spade terminal connections ensure a fast, secure electrical interface for field technicians during furnace gas valve replacement.

• Direct OEM Compatibility: Engineered specifically for Lennox furnace manifolds, ensuring proper 1/2" NPT fitment without pipe modifications.
• Standardized 24V Control: Works seamlessly with existing 24V AC furnace control boards and thermostats.
• Reliable Pressure Regulation: Maintains precise natural gas output to optimize burner efficiency and reduce soot buildup.
• Compact Footprint: Designed for easy handling and installation in confined indoor blower and burner compartments.

Is the Lennox 50W74 compatible with LP gas conversion?
Yes, this valve can typically be converted to Liquid Propane using a manufacturer-approved LP conversion kit; always verify orifice sizing and spring pressure adjustments during the conversion process.

What is the orientation requirement for installation?
This valve is designed for multi-position installation, though the solenoid should remain upright or at a 90-degree angle as per standard HVAC piping practices to prevent debris accumulation.

Does this unit include a pilot gas outlet?
Yes, the 50W74 includes a pilot tap, making it suitable for systems utilizing intermittent pilot ignition sequences.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.