Lennox 93J39 Auto Limit Control Switch 210°F

The Lennox 93J39 Automatic Limit Control Switch applied in HVAC equipment, namely furnaces, to prevent overheating. It works as a protection device by ‘breaking’ the circuit when the temperature has risen to a fixed point of 210°F. This mode is vital to stop the use of fossil fuel once it heeds the predetermined quantity to avoid damaging the furnace. This is compatible with 220V electrical systems and is making it easy to install. The switch is for a 220V electrical system and is designed for simple replacement during furnace maintenance or repair.