Description
The Lennox 12L37 Limit Switch is a safety device that is essential for your HVAC system. It is used as a thermal control mechanism which works as a thermal switch. When the temperature rises to a certain level usually between 190°F and 40°F, the limit switch gives an electrical signal, for example, switching off the furnace or air conditioner compressor. This helps to avoid your equipment getting too hot and in turn causing some harm. Lennox 12L37 limit switches are used in many HVAC products such as furnaces, air handlers and heat pumps.
