Lennox 73W20 Limit Switch L175°F-30°F

The Lennox 73W20 Limit Control – STILT is a safety component that is specifically manufactured for Lennox HVAC equipment, mainly furnaces, and air handlers. This automatic switch serves as an invisible protector that constantly controls the temperature within your system to avoid overheating and possible damaging of the components. For a specific high limit range of L175°F, the switch shuts down the furnace or air handler if the temperature goes beyond this safe limit the reset temperature of around 30°F guarantees that the system starts again safely once things are cool.