RHEEM 173979 Ruud Weatherking Protech Parts L180F Manual Reset Furnace Rollout Limit Control

Limit Switch - Manual Reset (Flanged Airstream)

This Ruud Limit Switch - Manual Reset (Flanged Airstream) is a replacement for the following systems:

This Limit Switch - Manual Reset is designed to limit the heat in an air handler or other device preventing over heating. Comfort Control makes it easy to replace your faulty unit so you can get your system up and running again!

The Rheem L180F is a hi-limit thermostat consists of the L180C or 180K limiter and the 24V Limit Switch - Manual Reset (Flanged) part number R173979. The R173979 limit switch (flanged) is set for 50/60 cycles of 77 degrees Fahrenheit (25 degrees Celsius).

RHEEM 173979 Ruud Weatherking Protech Parts L180F Manual Reset Furnace Rollout Limit Control The limit switch is an electronic device that limits the range of motion of a mechanical system or the flow of a fluid. When the end of travel for such a system or flow is reached, the limit switch trips and interrupts power to whatever device it is controlling. These limits make it possible to automate processes which require human supervision.

Machined from the highest quality materials, Limit Swtches are built for proper fit and durability. These limit switches feature a sealed enclosure to protect against dirt and debris, and are designed for long life operation. They function as a shut-off device to control the temperature within a specific distance. These limits switches are designed for use in air duct systems, etc.

The Limit Switch will keep your home warm and comfortable by preventing the furnace from overheating and shutting off. The limit temperature is factory set at 180 degree (or 67 Celsius) and the unit must be reset when it is tripped. This may occur if a service technician accidentally opens the manual gas valve on the furnace while working on the unit, or if some other obstruction is placed in front of the fan grill opening.

These Limit Switches are factory assembled and tested, and ready to use in your heating system. Leading brands like Honeywell and Emerson limit switches combined with the Rheem name equals quality you can count on. Limit switches keep equipment operating safely by detecting temperature changes, then cutting off power to heating elements.