In high-efficiency condensing gas furnaces

Technicians should not use these selector switches for sensor circuits

Enhanced Efficiency: Fixed 80-second delivery of residual heating or cooling capacity boosts overall system performance

While the arm is engineered to interface with standard OEM gaskets

and maintain consistent indoor comfort

York 024-31601-000 Interlock 319852-301 In high-efficiency condensing gas furnacesThe York 024 31601 000 Interlock is a safety critical OEM replacement part designed for commercial HVAC equipment, including air handling units, chillers, and furnace systems. As a genuine Johnson Controls mechanical interlock, this component provides a physical secondary safety layer that prevents hazardous simultaneous operation of electrical circuits or mechanical assemblies. This HVAC safety device is essential for maintaining the operational