Description
Lochinvar & A.O. Smith 1-1/4″ SPDT Float Switch
The Lochinvar & A.O. Smith 100208659 is a 1-1/4″ Single Pole Double Throw (SPDT) Float Switch engineered for dependable liquid level detection and control in boiler, hydronic, and water heating applications. Designed as a genuine OEM replacement part, this float switch ensures your system maintains proper water levels and operates safely and efficiently.
Key Features
- Single Pole Double Throw (SPDT) switching action for versatile control circuit integration
- 1-1/4″ connection size for straightforward installation into compatible systems
- Genuine Lochinvar & A.O. Smith OEM replacement part for assured fit and performance
- Designed for liquid level sensing in boiler, hydronic heating, and water heating equipment
- Reliable float mechanism activates switching action based on water level changes
- Helps protect equipment from low-water conditions and potential damage
Application
This float switch is a direct OEM replacement for compatible Lochinvar and A.O. Smith boilers and water heaters. It is used to monitor and control water levels within the system, triggering protective shutdowns or operational responses when liquid levels rise above or fall below set thresholds. The SPDT configuration allows it to be wired into both normally open and normally closed control circuits, providing flexible integration with existing system controls.
Why Choose Genuine OEM Parts?
Using genuine Lochinvar & A.O. Smith replacement parts ensures compatibility, maintains equipment warranties, and delivers the performance standards your system was designed to meet. Always verify your equipment model number before ordering to confirm fitment.







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