Lennox 31L82 Gas Valve

The Lennox 31L82 Gas Valve is a critical OEM replacement component designed for high-performance gas flow regulation in residential and light commercial furnaces. Engineered for natural gas applications, this 24V gas valve features a 1/2" NPT inlet and outlet, ensuring a secure, leak-resistant connection to existing gas piping. Specifically designed to operate at 3.5" WC, it provides precise manifold pressure regulation to maintain optimal combustion efficiency and safe system operation. This dual-valve safety design incorporates redundant solenoids that require simultaneous energization to permit gas flow, acting as a crucial failsafe against unintended leakage.

As a direct spark ignition (DSI) and intermittent pilot ignition compatible part, the Lennox 31L82 (also known by manufacturer number 31L8201 or Honeywell VR8205M2476) is a standard opening valve that facilitates smooth, quiet burner transitions. This HVAC gas valve is a technician-preferred solution for restoring the original performance of Lennox G40DF and G41 series units, among others. Its durable metal housing and high-heat tolerance make it a dependable staple for maintenance professionals requiring a genuine Lennox replacement part.

• OEM Compatibility: Exact drop-in replacement for Lennox 31L8201 and Honeywell VR8205M2476 models.
• Standard Opening Regulation: Designed for 3.5" Water Column to ensure steady and efficient fuel delivery to the burners.
• Dual Solenoid Safety: Features a dual-valve mechanism for redundant gas shutoff and enhanced system protection.
• Technician-Ready Installation: Standard 1/2" x 1/2" NPT threading and 24VAC coil for seamless integration with existing furnace control boards.

What are the symptoms of a failing Lennox 31L82 gas valve?
Common indicators include the furnace failing to ignite despite a 24V signal, clicking noises without gas release, or intermittent short-cycling due to weak solenoid coils. Technicians should verify manifold pressure and coil resistance during diagnostics.

Can this valve be converted for Liquid Propane (LP) use?
While the 31L82 is factory-set for natural gas at 3.5" WC, it can typically be converted using a manufacturer-approved LP conversion kit. Always verify the specific orifice requirements and pressure settings after conversion.

Is this a fast-opening or standard-opening valve?
This is a standard opening gas valve, which allows for a controlled, gradual flow of gas upon ignition to minimize startup noise and stress on the heat exchanger.

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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.