Armstrong Furnace R110070005 Limit Switch L145°F-40°F

The Armstrong Furnace R110070005 L145-40F Limit Switch is a required component to control the temperature and overheating in HVAC systems. The working concept of this system part is that it opens or closes its circuit when the temperature exceeds or falls below preset limits to regulate the burner operation to ensure safe conditions. It is usually fitted in commercial and residential gas furnaces, and it plays a vital role in the system concept as it controls temperature levels, aids in controlled operation, and ensures the proper conditions of the system during heating periods.