RHEEM 174020 Ruud Weatherking Factory OEM Protech Parts L190-40F Furnace Limit Control

Limit Switch - Auto Reset (Flanged Airstream)

RHEEM 174020 OEM part number for the Limit Switch - Auto Reset (Flanged Airstream)

The RHEEM 174020 is a factory OEM parts Ruud Weatherking Factory OEM Protech Parts product. The RHEEM 174020 Limit Switch - Auto Reset (Flanged Airstream) controls the temperature of your Rheem Furnace with a spring return mechanism, and includes self-adjusting screws for easy installation.

This Limit Switch is made with a flanged housing for Airstream/Carriage Craft Products, it is designed to control gas burners, and it has an Auto Reset feature.

Limit Switch - Auto Reset

The Limit Controls are designed to prevent the operating elements from overheating, which can damage the furnace and reduce its efficiency. The limit switch will shut off power to the furnace until the gas supply is reset. Weather King Airstream RV furnaces use internal limit restrictors that can be either manually or automatically reset, which are also known as an Auto-Reset type.

This limit control is properly sized for operating a unit of this size. It also has the auto reset feature.

The Limit Switch Assembly (also called a control) is a safety device that limits the operation of a heating or cooling system. Limit (control) switches are designed to stop, start, or regulate flow of gas or electric current. The switch is activated by two pressure plates that are usually mounted in the gas valve or electric current controller. The switch is located at the point where the gas or electricity enters the assembly.