Description
Lochinvar & A.O. Smith 100208558 Premix Gas/Air Ratio Sensor ARM
The Lochinvar & A.O. Smith 100208558 is an OEM replacement Premix Gas/Air Ratio Sensor ARM engineered for use in high-efficiency condensing boiler and water heater systems. This critical combustion component monitors and helps regulate the gas-to-air mixture in premix burner assemblies, ensuring optimal combustion efficiency, consistent performance, and safe operation across the full firing range of the appliance.
Key Features
- OEM-grade Premix Gas/Air Ratio Sensor ARM for direct replacement
- Designed for use in Lochinvar and A.O. Smith high-efficiency condensing boiler and water heater systems
- Supports precise premix combustion control for maximum fuel efficiency
- Helps maintain proper air-to-fuel ratio across variable firing rates
- Engineered for reliable, long-service-life performance in demanding commercial and residential applications
- Direct OEM fit ensures compatibility and eliminates guesswork during installation
Application
This sensor ARM is a key component within premix burner systems, where accurate gas/air ratio sensing is essential for maintaining low NOx emissions, high thermal efficiency, and safe combustion. It is intended as a factory-authorized replacement part for qualified HVAC and plumbing technicians servicing Lochinvar and A.O. Smith equipment.
Why Choose OEM Replacement Parts?
- Guaranteed fit and compatibility with original equipment
- Maintains manufacturer warranty compliance
- Ensures continued safe and efficient system operation
- Reduces risk of callbacks and repeat service visits
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