Regio Manual Maxi Chapter 15 Indications 63Chapter 15 IndicationsIndications on the RU-unitsLED All room units without display have a LED shaped like a thermometer on the front. A redindication is shown when heating control is functional and a blue indication is shown whencooling control is active. When there is something wrong with the controller, the LEDflashes red and blue.Figure 15. The LEDThe occupancy button On room units without display, the occupancy button has the following indications: Occupied: Fixed green indication Standby: Flashing green indication Bypass: Fixed green indication with a short flash Off and Unoccupied: No indicationFigure 16. The occupancy buttonFor RU-models with display, these indications are shown in the display, see the chapterDisplay handling.Communication LED When the frame of the room units has been removed, a LED is visible in the right edge of thecontroller. It lights up green when the controller is sending information.