Mercy South has worked with Automatic Controls since 1996. The ALC system controls the main hospital buildings plus eight outbuildings and urgent care buildings around St. Louis. From the central chiller/boiler plant to the operating rooms, patient rooms, and computer rooms, WebCTRL controls and monitors all the HVAC and power critical systems. All major HVAC equipment is controlled and approximately 40% of the zones throughout the hospital are connected to the ALC system.