Lennox 73W17 Gas Valve

The Lennox 73W17 Gas Valve is a critical OEM replacement for maintaining precise fuel regulation in residential and light commercial furnace heating systems. Engineered for dual direct ignition applications, this 1/2-inch NPT natural gas valve operates on a standard 24V control circuit and is factory-set to a 3.5" WC manifold pressure. As a veteran-grade component, the 73W17 features a combination gas control design, integrating a manual shutoff, two automatic operators, and a reliable pressure regulator into a single, compact housing. The solenoid-operated first valve opens immediately upon a thermostat call for heat, while the diaphragm-operated second valve ensures stable burner performance under the regulation of the precise internal spring. This valve is a direct 150,000 BTUH capacity successor to several legacy Honeywell and Lennox models, including the VR8215S1248 and 13H41, ensuring a seamless fit during field repairs without the need for manifold modifications.

• Broad Compatibility: Serves as the high-performance replacement for 13H41, 73W1701, 80M30, 93M80, and the Honeywell VR8215S1248 series.
• Enhanced Safety: Dual automatic valves meet strict safety codes for redundant shutoff, protecting the heat exchanger from gas buildup if power is interrupted.
• Field Versatility: While factory-calibrated for natural gas, this unit is compatible with LP conversion kits for propane applications.
• Simplified Diagnostics: Features top-accessible wiring terminals and pressure taps, allowing technicians to quickly verify 24V signal and manifold pressure during troubleshooting.
• Robust Construction: Built to withstand the high-cycle demands of modern condensing and non-condensing Lennox furnaces.

Does this valve require a specific orientation during installation?
Yes. For optimal diaphragm performance and to prevent sediment buildup, the valve should be installed with the solenoid and regulator in the upright position, matching the original equipment orientation on the manifold.

Can I use this 73W17 valve to replace a VR8205S2379?
Yes, the 73W17 is the designated direct replacement for the VR8205S2379 and other older VR8105 series valves, providing the same 1/2" x 1/2" connection and electrical requirements.

What are the signs that my current gas valve has failed?
Technicians typically look for 24VAC at the valve terminals without a resulting "clunk" from the solenoid, or a situation where the ignitor glows but the main burners fail to light despite proper gas supply pressure.

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.