Lennox 72W35 Gas Valve
The Lennox 72W35 Modulating LP Gas Valve is an OEM replacement furnace gas valve specifically designed for high-efficiency Lennox, Armstrong, and Ducane heating systems. This primary gas control facilitates precise LP gas pressure regulation, supporting heating capacities up to 100,000 BTU/hr. Engineered for liquid propane furnace systems, it utilizes a 24 VAC solenoid and a 1/2" x 1/2" NPT connection to ensure a seamless fit during retrofit or repair. The modulating design allows the valve to adjust gas flow dynamically, maintaining optimal combustion and discharge temperatures for consistent comfort. This Honeywell VR9105R2209/B cross-reference part features a robust internal regulator set to 10.0 +/- 0.5" W.C., effectively preventing pressure drops and ensuring stable burner performance. For technicians servicing SL280V or XC27 models, this Lennox 103016-02 valve provides the precise modulating gas flow control required for advanced troubleshooting and system restoration.
Key Benefits:- Precision Modulation: Continuous adjustment of gas input optimizes furnace cycles and reduces mechanical wear on the heat exchanger.
- High Capacity Output: Rated for up to 100,000 BTU/hr, providing sufficient fuel flow for both residential and light commercial Lennox applications.
- Integrated Safety Diagnostics: Includes a built-in safety shut-off that immediately terminates gas flow if the flame signal is lost or the pilot circuit fails.
- Standardized Fitment: Features a universal 1/2 inch NPT inlet/outlet configuration, simplifying the swap-out process for field contractors.
- Is the Lennox 72W35 compatible with natural gas? No, this specific model is a dedicated LP gas valve. For natural gas configurations, a different manifold and regulator assembly are required to meet specific orifice requirements.
- Can this be used to replace non-modulating valves? The 72W35 modulating valve is designed for systems with modulating control boards. Installing this on a single-stage or two-stage furnace without the proper logic will result in startup failures or incorrect manifold pressure.
- What are the signs of a failing modulating gas valve? Common indicators include erratic furnace gas pressure, failed ignition sequences, or error codes on the Lennox furnace control board related to low gas flow or communication loss with the valve solenoid.
This item is not eligible for free shipping.
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.
Original: $335.33
-65%$335.33
$117.37Product Information
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Description
The Lennox 72W35 Modulating LP Gas Valve is an OEM replacement furnace gas valve specifically designed for high-efficiency Lennox, Armstrong, and Ducane heating systems. This primary gas control facilitates precise LP gas pressure regulation, supporting heating capacities up to 100,000 BTU/hr. Engineered for liquid propane furnace systems, it utilizes a 24 VAC solenoid and a 1/2" x 1/2" NPT connection to ensure a seamless fit during retrofit or repair. The modulating design allows the valve to adjust gas flow dynamically, maintaining optimal combustion and discharge temperatures for consistent comfort. This Honeywell VR9105R2209/B cross-reference part features a robust internal regulator set to 10.0 +/- 0.5" W.C., effectively preventing pressure drops and ensuring stable burner performance. For technicians servicing SL280V or XC27 models, this Lennox 103016-02 valve provides the precise modulating gas flow control required for advanced troubleshooting and system restoration.
Key Benefits:- Precision Modulation: Continuous adjustment of gas input optimizes furnace cycles and reduces mechanical wear on the heat exchanger.
- High Capacity Output: Rated for up to 100,000 BTU/hr, providing sufficient fuel flow for both residential and light commercial Lennox applications.
- Integrated Safety Diagnostics: Includes a built-in safety shut-off that immediately terminates gas flow if the flame signal is lost or the pilot circuit fails.
- Standardized Fitment: Features a universal 1/2 inch NPT inlet/outlet configuration, simplifying the swap-out process for field contractors.
- Is the Lennox 72W35 compatible with natural gas? No, this specific model is a dedicated LP gas valve. For natural gas configurations, a different manifold and regulator assembly are required to meet specific orifice requirements.
- Can this be used to replace non-modulating valves? The 72W35 modulating valve is designed for systems with modulating control boards. Installing this on a single-stage or two-stage furnace without the proper logic will result in startup failures or incorrect manifold pressure.
- What are the signs of a failing modulating gas valve? Common indicators include erratic furnace gas pressure, failed ignition sequences, or error codes on the Lennox furnace control board related to low gas flow or communication loss with the valve solenoid.
This item is not eligible for free shipping.
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.
