Description
The Lennox 35K61 Auto Limit Switch Insert is a safety device that is essential for the HVAC systems. It is a 7-Inch insert that is used in controlling heat at a certain level, usually between 195°F and 225°F in this model. In layman’s terms, it works like a safety switch that turns the car off when it is out of gas. It is a switch that keeps checking the temperature of your HVAC equipment as it rises. Whenever the temperature increases beyond the specified limit (225°F in this case) the auto, limit switch opens the electrical circuit to halt the heating element thus preventing them from overheating.









