Lochinvar & A.O. Smith 100110696 O Ring Seal

The Lochinvar & A.O. Smith 100110696 O-Ring Seal is a critical OEM replacement part engineered specifically for high-efficiency boiler maintenance and commercial water heater service. This seal plate gasket is designed to provide a high-tolerance, leak-proof interface between the heat exchanger and the burner mounting plate. Constructed from high-grade elastomers capable of withstanding the thermal cycling of hydronic heating systems, the 100110696 ensures combustion chamber integrity by maintaining a vacuum-tight seal. Accurate O-ring installation is essential for preventing the escape of flue gases and ensuring optimal BTU output efficiency. This heavy-duty component is the factory-specified solution for technicians performing teardowns or preventive maintenance on Lochinvar Knight and A.O. Smith Cyclone models where reliable sealing performance is non-negotiable for system safety and pressure stabilization.

Technical Benefits for Contractors

• OEM Precision: Guaranteed fit for 100110696 specifications, eliminating the risk of bypass or incomplete compression.
• Thermal Resilience: Formulated to maintain elasticity under the extreme temperature fluctuations of commercial condensing boilers.
• System Pressure Integrity: Prevents fluid and gas leaks at the seal plate, protecting sensitive electronic controls from moisture damage.
• Cross-Brand Compatibility: Verified for use in professional-grade Lochinvar and A.O. Smith water heating equipment.

Common Questions

When should the 100110696 O-ring be replaced?
Standard service protocols dictate replacing this O-ring seal whenever the seal plate is removed for heat exchanger inspection or burner cleaning to ensure a fresh compression set.

What causes this seal to fail in HVACR systems?
Compression set over time, exposure to aggressive condensate, or improper lubrication during installation are the primary factors in seal degradation.

Is this seal plate gasket compatible with non-OEM heat exchangers?
No, this part is engineered specifically for factory-authorized Lochinvar and A.O. Smith configurations to meet exact safety and pressure ratings.

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.