Fujitsu UTY-DMMUM Central ControllerThe central controller controls up to 8 individual indoor units and allows for temperature setting as well as other controls. This controller has a large LCD backlit display with a 4 way navigation pad. General Information UTY DMMUM is a central controller that allows you to control up to 8 indoor units at once. Package Includes UTY DMMUM Wired Central Controller Features User friendly operation, large backlit LED screen. Large easy to see operation