Lochinvar & A.O. Smith 100293455 Pilot/Thermopile
The Lochinvar & A.O. Smith 100293455 Pilot/Thermopile assembly is a critical OEM replacement part designed for precision ignition and consistent flame sensing in natural gas water heaters and boilers. This heavy-duty pilot assembly features a high-output 750 millivolt thermopile, providing the necessary DC voltage to hold the internal gas valve solenoid open during operation. Built to handle the high-thermal stress of constant pilot flames, this kit includes replacement pilot tubing with pre-formed bends and threaded fittings to ensure a gas-tight seal and straightforward manifold integration. As a standard standing pilot component, it functions as a primary safety mechanism, preventing the main burner from firing if the pilot flame is not detected. This unit is essential for restoring the functionality of industrial and residential units where the pilot light fails to stay lit or the gas control valve does not receive adequate millivoltage. Designed for specialized HVAC applications, it is a direct fit for numerous A.O. Smith and Lochinvar models requiring natural gas pilot burner assemblies.
Key Benefits- OEM Precision: Genuine Lochinvar and A.O. Smith factory part ensures exact mechanical fit and millivolt output.
- High-Efficiency Thermopile: Delivers a stable 750 mV signal (open circuit) to the gas control valve for reliable burner engagement.
- Complete Installation Kit: Includes the pilot burner, thermopile, and required aluminum tubing for a comprehensive swap.
- Enhanced Safety: Acts as an integrated fail-safe to cut gas flow if the pilot flame is extinguished or becomes unstable.
How do I know if my thermopile is failing?
If your pilot lights but won't stay lit after releasing the knob, use a multimeter to check the DC millivolts. A healthy 100293455 thermopile should typically produce between 650mV and 850mV under no-load conditions. Anything below 400mV usually indicates a drop in performance that requires replacement.
Will this assembly work with Propane (LP) systems?
No, this specific part is calibrated for Natural Gas (NAT). Using this in a liquid propane system can cause improper combustion and safety hazards due to different orifice requirements.
Is the tubing included for manifold connection?
Yes, this SKU includes the pilot tubing with brass threads. When installing, always start threads by hand to avoid stripping the manifold connections on the gas control valve.
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.
Lochinvar & A.O. Smith 100293455 Pilot/Thermopile
The Lochinvar & A.O. Smith 100293455 Pilot/Thermopile assembly is a critical OEM replacement part designed for precision ignition and consistent flame sensing in natural gas water heaters and boilers. This heavy-duty pilot assembly features a high-output 750 millivolt thermopile, providing the necessary DC voltage to hold the internal gas valve solenoid open during operation. Built to handle the high-thermal stress of constant pilot flames, this kit includes replacement pilot tubing with pre-formed bends and threaded fittings to ensure a gas-tight seal and straightforward manifold integration. As a standard standing pilot component, it functions as a primary safety mechanism, preventing the main burner from firing if the pilot flame is not detected. This unit is essential for restoring the functionality of industrial and residential units where the pilot light fails to stay lit or the gas control valve does not receive adequate millivoltage. Designed for specialized HVAC applications, it is a direct fit for numerous A.O. Smith and Lochinvar models requiring natural gas pilot burner assemblies.
Key Benefits- OEM Precision: Genuine Lochinvar and A.O. Smith factory part ensures exact mechanical fit and millivolt output.
- High-Efficiency Thermopile: Delivers a stable 750 mV signal (open circuit) to the gas control valve for reliable burner engagement.
- Complete Installation Kit: Includes the pilot burner, thermopile, and required aluminum tubing for a comprehensive swap.
- Enhanced Safety: Acts as an integrated fail-safe to cut gas flow if the pilot flame is extinguished or becomes unstable.
How do I know if my thermopile is failing?
If your pilot lights but won't stay lit after releasing the knob, use a multimeter to check the DC millivolts. A healthy 100293455 thermopile should typically produce between 650mV and 850mV under no-load conditions. Anything below 400mV usually indicates a drop in performance that requires replacement.
Will this assembly work with Propane (LP) systems?
No, this specific part is calibrated for Natural Gas (NAT). Using this in a liquid propane system can cause improper combustion and safety hazards due to different orifice requirements.
Is the tubing included for manifold connection?
Yes, this SKU includes the pilot tubing with brass threads. When installing, always start threads by hand to avoid stripping the manifold connections on the gas control valve.
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.
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Description
The Lochinvar & A.O. Smith 100293455 Pilot/Thermopile assembly is a critical OEM replacement part designed for precision ignition and consistent flame sensing in natural gas water heaters and boilers. This heavy-duty pilot assembly features a high-output 750 millivolt thermopile, providing the necessary DC voltage to hold the internal gas valve solenoid open during operation. Built to handle the high-thermal stress of constant pilot flames, this kit includes replacement pilot tubing with pre-formed bends and threaded fittings to ensure a gas-tight seal and straightforward manifold integration. As a standard standing pilot component, it functions as a primary safety mechanism, preventing the main burner from firing if the pilot flame is not detected. This unit is essential for restoring the functionality of industrial and residential units where the pilot light fails to stay lit or the gas control valve does not receive adequate millivoltage. Designed for specialized HVAC applications, it is a direct fit for numerous A.O. Smith and Lochinvar models requiring natural gas pilot burner assemblies.
Key Benefits- OEM Precision: Genuine Lochinvar and A.O. Smith factory part ensures exact mechanical fit and millivolt output.
- High-Efficiency Thermopile: Delivers a stable 750 mV signal (open circuit) to the gas control valve for reliable burner engagement.
- Complete Installation Kit: Includes the pilot burner, thermopile, and required aluminum tubing for a comprehensive swap.
- Enhanced Safety: Acts as an integrated fail-safe to cut gas flow if the pilot flame is extinguished or becomes unstable.
How do I know if my thermopile is failing?
If your pilot lights but won't stay lit after releasing the knob, use a multimeter to check the DC millivolts. A healthy 100293455 thermopile should typically produce between 650mV and 850mV under no-load conditions. Anything below 400mV usually indicates a drop in performance that requires replacement.
Will this assembly work with Propane (LP) systems?
No, this specific part is calibrated for Natural Gas (NAT). Using this in a liquid propane system can cause improper combustion and safety hazards due to different orifice requirements.
Is the tubing included for manifold connection?
Yes, this SKU includes the pilot tubing with brass threads. When installing, always start threads by hand to avoid stripping the manifold connections on the gas control valve.
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.
