Lochinvar & A.O. Smith 100109298 Pilot Assembly

The Lochinvar & A.O. Smith 100109298 Pilot Assembly is a critical OEM replacement part designed specifically for high-temperature propane (LP) gas applications. Engineering-grade construction ensures reliable performance in FVIR (Flammable Vapor Ignition Resistant) systems, with a 200°C temperature rating optimized for the intense thermal environments of residential and light commercial water heaters. This assembly facilitates consistent pilot flame ignition, serving as the primary ignition source for the main burner while ensuring safety through precise thermocouple or thermopile integration. As a direct replacement for part numbers 9003544005 and 183824-202, this propane pilot assembly eliminates light-off delays and nuisance lockouts caused by carbon buildup or sensor degradation. For HVACR contractors, this pilot burner assembly provides a drop-in solution to restore factory-spec combustion efficiency and system reliability in Lochinvar and A.O. Smith gas water heaters.

• OEM Compatibility: Exact drop-in replacement for Lochinvar 100109298 and A.O. Smith 9003544005, ensuring alignment with original gas manifolds.
• Thermal Resilience: Rated for 200°C to withstand continuous operation in sealed FVIR combustion chambers without premature fatigue.
• Propane Optimized: Specifically calibrated for LP gas flow rates to maintain a stable, crisp pilot flame for reliable main burner crossover.
• System Security: Integrates seamlessly with existing ignition control modules to prevent unburned gas accumulation.

• Is this assembly compatible with natural gas units? No, the 100109298 is specifically orifice-calibrated for propane (LP) gas. For natural gas applications, a different assembly must be used to ensure correct air-to-fuel ratios.
• What does the 200°C rating signify? It indicates the maximum ambient operating temperature the electrical and mechanical components can withstand within the burner door assembly.
• Does this include the spark igniter and thermocouple? This is a complete FV pilot assembly containing the pilot tube, mounting bracket, and essential sensing/ignition components as per the OEM specification.

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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.