Temperature Limit Switch for Attic Fans

If you’re looking to maintain a comfortable environment in your workshop or shed without the expense of air conditioning, think about adding a temperature limit switch for your attic fans. This practical and efficient solution offers a balance between maintaining a comfortable climate and ensuring safety. To view our High Limit TC Switches, click here!

Temperature Limit Switch for Attic Fans

One customer from a southern state used this approach to cool down his shed without constant supervision or the expense of traditional cooling methods. By connecting an attic fan to a thermostat, he automatically kept his shed cool during hot weather.

However, a firefighter friend raised a concern about the potential danger of a fire in the building. If the fan were to continue running during a fire, it could exacerbate the flames and cause more damage. To address this issue, the customer opted for a temperature limit switch for the attic fans.

The high limit TC switch monitors for temperatures exceeding 200°F. If such a high temperature is detected, indicating a potential fire, the switch will turn off the fan to prevent feeding the flames. In normal conditions, the fan will operate to keep the building cool when temperatures rise above 80°F, maintaining a safe and comfortable environment.

By using a limit switch for your attic fans, you can achieve a safe and effective climate control solution for your workspace. This simple yet powerful setup provides an additional layer of safety against fire while ensuring your shed or workshop remains at an optimal temperature.

Talk to a product specialist today!

CEMCO Duct Limit Switches

The Firestat Duct Fan and Limit Thermostat Switches operate using the same physics to ensure HVAC safety. A helix bi-metal element senses a rapid temperature change. When the temperature changes the bi-metal expands and triggers a snap action switch and either opens or closes a circuit. These switches are commonly installed in air ducts designed to shut down heating, air conditioning and ventilation equipment in apartment complexes and other multiple dwelling units when air temperature exceeds the set point.

UL & cUL Approved
Made in the U.S.A.