Description
The Lennox 78L30 Limit Control Auto Reset is a temperature-sensitive safety control used in heating equipment to monitor and regulate operating temperatures. It automatically responds to temperature changes within a range of 140F to 180F, opening or closing the electrical circuit as required by the control application. Once temperatures return to the appropriate level, the auto-reset feature restores normal circuit operation without manual intervention. Commonly applied in furnaces and other heating assemblies within HVAC systems, this limit control helps protect equipment from excessive heat while supporting safe and controlled operation.
