Description
The Lennox 19J81 is an automatic limit switch which is safety component in HVAC equipment such as furnaces and air handlers to control the temperature. It works through cutting off the electrical circuit once the temperature goes high, often between 210°F and 240°F for the 19J81 model. This safety feature is useful in protecting your HVAC system from burning itself up and causing a lot of damage. The Lennox 19J81 is a Highly compact. unit and is 7 inches long.
