
Lennox 15D34 Gas Valve
The Lennox 15D34 (equivalent to 103016-03) is a high-performance modulating gas valve engineered for precision fuel regulation in high-efficiency residential and light commercial furnaces. Designed as an OEM replacement, this 24 VAC gas valve features a 1/2" x 1/2" NPT inlet and outlet connection, ensuring seamless integration with existing manifold configurations. The unit excels in varying thermal demands by utilizing advanced modulation capabilities to adjust gas flow dynamically, maintaining consistent discharge temperatures and minimizing energy waste. With a manifold pressure rating typically set at 3.8 +/- 0.3" W.C. for natural gas, it provides stable ignition and steady-state operation within a wide temperature range up to 200°F. The Honeywell VR9205R2447/B internal assembly ensures a redundant safety shut-off mechanism that meets stringent C.S.A. standards. For technicians, this Lennox HVAC part is essential for restoring optimal modulation logic in systems experiencing erratic heating or low-efficiency codes, providing a rugged die-cast aluminum construction that resists corrosion and thermal fatigue in demanding mechanical rooms.
Key Benefits- Precise Modulation: Provides variable gas flow to match real-time heating demand, significantly improving seasonal efficiency (AFUE).
- OEM Reliability: Direct replacement for 103016-03 and Honeywell VR9205R2447/B, ensuring factory-correct fitment and electrical compatibility.
- Enhanced Safety: Includes a redundant solenoid for positive safety shut-off as required by modern safety codes.
- Natural Gas Ready: Factory-configured for natural gas systems, though convertible for LP applications with the appropriate manufacturer-approved kit.
- Durable Construction: Built with a compact, lightweight aluminum body for easy installation in tight furnace cabinets.
- Can this valve be used to replace a single-stage or two-stage valve? No. This is a modulating gas valve specifically designed for modulating furnaces; it requires a compatible modulating control board to function correctly.
- Does the 15D34 include the LP conversion kit? Generally, this unit is shipped for natural gas. You must use a Lennox-specific conversion kit if your application requires propane.
- What are the symptoms of a failing 15D34 valve? Common indicators include "no-heat" error codes, inconsistent manifold pressure during modulation, or an open internal coil upon testing with a multimeter.
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: $363.43
-65%$363.43
$127.20Lennox 15D34 Gas Valve
The Lennox 15D34 (equivalent to 103016-03) is a high-performance modulating gas valve engineered for precision fuel regulation in high-efficiency residential and light commercial furnaces. Designed as an OEM replacement, this 24 VAC gas valve features a 1/2" x 1/2" NPT inlet and outlet connection, ensuring seamless integration with existing manifold configurations. The unit excels in varying thermal demands by utilizing advanced modulation capabilities to adjust gas flow dynamically, maintaining consistent discharge temperatures and minimizing energy waste. With a manifold pressure rating typically set at 3.8 +/- 0.3" W.C. for natural gas, it provides stable ignition and steady-state operation within a wide temperature range up to 200°F. The Honeywell VR9205R2447/B internal assembly ensures a redundant safety shut-off mechanism that meets stringent C.S.A. standards. For technicians, this Lennox HVAC part is essential for restoring optimal modulation logic in systems experiencing erratic heating or low-efficiency codes, providing a rugged die-cast aluminum construction that resists corrosion and thermal fatigue in demanding mechanical rooms.
Key Benefits- Precise Modulation: Provides variable gas flow to match real-time heating demand, significantly improving seasonal efficiency (AFUE).
- OEM Reliability: Direct replacement for 103016-03 and Honeywell VR9205R2447/B, ensuring factory-correct fitment and electrical compatibility.
- Enhanced Safety: Includes a redundant solenoid for positive safety shut-off as required by modern safety codes.
- Natural Gas Ready: Factory-configured for natural gas systems, though convertible for LP applications with the appropriate manufacturer-approved kit.
- Durable Construction: Built with a compact, lightweight aluminum body for easy installation in tight furnace cabinets.
- Can this valve be used to replace a single-stage or two-stage valve? No. This is a modulating gas valve specifically designed for modulating furnaces; it requires a compatible modulating control board to function correctly.
- Does the 15D34 include the LP conversion kit? Generally, this unit is shipped for natural gas. You must use a Lennox-specific conversion kit if your application requires propane.
- What are the symptoms of a failing 15D34 valve? Common indicators include "no-heat" error codes, inconsistent manifold pressure during modulation, or an open internal coil upon testing with a multimeter.
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.
Product Information
Product Information
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Shipping & Returns
Description
The Lennox 15D34 (equivalent to 103016-03) is a high-performance modulating gas valve engineered for precision fuel regulation in high-efficiency residential and light commercial furnaces. Designed as an OEM replacement, this 24 VAC gas valve features a 1/2" x 1/2" NPT inlet and outlet connection, ensuring seamless integration with existing manifold configurations. The unit excels in varying thermal demands by utilizing advanced modulation capabilities to adjust gas flow dynamically, maintaining consistent discharge temperatures and minimizing energy waste. With a manifold pressure rating typically set at 3.8 +/- 0.3" W.C. for natural gas, it provides stable ignition and steady-state operation within a wide temperature range up to 200°F. The Honeywell VR9205R2447/B internal assembly ensures a redundant safety shut-off mechanism that meets stringent C.S.A. standards. For technicians, this Lennox HVAC part is essential for restoring optimal modulation logic in systems experiencing erratic heating or low-efficiency codes, providing a rugged die-cast aluminum construction that resists corrosion and thermal fatigue in demanding mechanical rooms.
Key Benefits- Precise Modulation: Provides variable gas flow to match real-time heating demand, significantly improving seasonal efficiency (AFUE).
- OEM Reliability: Direct replacement for 103016-03 and Honeywell VR9205R2447/B, ensuring factory-correct fitment and electrical compatibility.
- Enhanced Safety: Includes a redundant solenoid for positive safety shut-off as required by modern safety codes.
- Natural Gas Ready: Factory-configured for natural gas systems, though convertible for LP applications with the appropriate manufacturer-approved kit.
- Durable Construction: Built with a compact, lightweight aluminum body for easy installation in tight furnace cabinets.
- Can this valve be used to replace a single-stage or two-stage valve? No. This is a modulating gas valve specifically designed for modulating furnaces; it requires a compatible modulating control board to function correctly.
- Does the 15D34 include the LP conversion kit? Generally, this unit is shipped for natural gas. You must use a Lennox-specific conversion kit if your application requires propane.
- What are the symptoms of a failing 15D34 valve? Common indicators include "no-heat" error codes, inconsistent manifold pressure during modulation, or an open internal coil upon testing with a multimeter.
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.












