Description
The Lennox 18H01 is a Limit Switch L140-40F, an essential safety device used in HVAC systems, particularly furnaces and heating apparatus. This limit switch is designed specifically to regulate temperature and will turn the heater on or off depending on whether or not the temperatures are inside a normal range which is usually between 140 to 40 degrees Fahrenheit. It avoids overheating or over-cooling by breaking the circuit at high temperatures protects the equipment and guarantees safety. This makes system operation safer and reduces energy consumption by preventing the system from working for long at high temperatures.
