Description
The Reznor 123973 is an automatic fan limit switch engineered to provide reliable temperature-based control and overheat protection for Reznor heating equipment. With a switching range of 105°F to 160°F, this control automatically manages fan operation and shuts down the burner in the event of an over-temperature condition, protecting both the equipment and the building occupants.
Key Features
- Automatic (AUTO) reset operation for convenient, hands-free recovery after a limit event
- Fan limit switching range: 105°F – 160°F
- Designed as a direct OEM replacement for compatible Reznor heating units
- Controls fan start/stop based on supply air temperature for optimized comfort and efficiency
- Provides high-limit safety cutout to prevent overheating and equipment damage
- Durable construction built to withstand the demanding environment of commercial and industrial heating applications
Application
The Reznor 123973 fan limit switch is ideal for use in commercial and industrial unit heaters, rooftop units, and warm-air furnaces that require precise temperature-activated fan and safety limit control. Its automatic reset function minimizes downtime and service calls, making it a dependable choice for facility maintenance professionals and HVAC technicians.
Why Choose an OEM Reznor Replacement?
Using a genuine Reznor replacement part ensures proper fit, function, and compatibility with your existing equipment. It helps maintain manufacturer warranties, meets original design specifications, and delivers the long-term reliability your heating system demands.
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