Description
The Lennox 27K12 Auto Limit Switch with a 3” insert is a safety device applied in the HVAC system with a focus of the furnace that controls the temperature with maximum limit to avoid overheating. This switch is used to turn on or off the heating system depending on certain temperatures that may lie between 205-235°F. It ensures safe operation because the circuit is turned off if the temperatures get to limits that are considered high. Its 3-inch insert enables accurate identification of temperature, which ensures the control and performance of the product.









