Description
Lochinvar & A.O. Smith 100112849 Air Pressure Switch
The Lochinvar & A.O. Smith 100112849 is a genuine OEM air pressure switch designed as a direct replacement for compatible Lochinvar and A.O. Smith water heaters and boilers. Air pressure switches are critical safety components that verify proper draft inducer or combustion blower operation before allowing burner ignition — helping protect equipment and occupants from unsafe combustion conditions.
Key Features
- Genuine OEM replacement part for Lochinvar and A.O. Smith equipment
- Monitors combustion air pressure to confirm safe blower operation
- Prevents burner ignition if adequate airflow is not established
- Direct drop-in replacement for fast, accurate installation
- Helps maintain system efficiency and combustion safety
- Engineered to OEM specifications for reliable, long-lasting performance
Application
This air pressure switch is intended for use with select Lochinvar and A.O. Smith residential and commercial water heating and boiler systems. Always verify compatibility with your specific unit model number before installation.
Installation Notes
- Refer to the original equipment manufacturer’s installation and service manual for wiring diagrams and mounting instructions
- Disconnect power before servicing or replacing this component
- Replacement should be performed by a qualified HVAC/R technician
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