Description
The Lennox 22W70 Control Limit is identified as part number 100079-03, calibrated to open the circuit at 205F. It monitors internal equipment temperature and interrupts electrical flow when heat levels rise beyond its set point, protecting connected components from excessive operating conditions in HVAC systems. The system is commonly integrated into furnace assemblies where it responds to airflow or combustion heat changes and signals the control board during abnormal temperature rise conditions. It is placed within heating units and air handling equipment to regulate safety response operates and maintain controlled operation during heating cycles in residential and commercial settings.
