3 OperationOperation manual3EWAQ+EWYQ006+008BAVPPackaged air-cooled water chillers and packaged air to water heatpumps4P478611-1 – 2017.023 Operation3.1 Overview: OperationYou can operate the system via the user interface. This partdescribes how to use the user interface:Part DescriptionAt a glance ▪ Buttons▪ Status iconsSpace heating/coolingcontrolHow to control space heating/cooling:▪ Setting the space operation mode▪ Controlling the temperatureSchedules How to select and program schedulesMenu structure Overview of menu structureInstaller settings table Overview of installer settings3.2 The user interface at a glance3.2.1 Buttonsaefbdca HOME PAGES▪ Switches between home pages (when you are on a homepage).▪ Goes to the default home page (when you are in the menustructure).b MALFUNCTION INFORMATIONIf a malfunction occurs, is displayed on the home pages.Press to display more information about the malfunction.c ON/OFFTurns ON or OFF one of the controls (room temperature,leaving water temperature).d MENU STRUCTURE/BACK▪ Opens the menu structure (when you are on a homepage).▪ Goes up a level (when you are navigating through themenu structure).▪ Goes back 1 step (example: when you are programming aschedule in the menu structure).e NAVIGATING/CHANGING SETTINGS▪ Navigates the cursor on the display.▪ Navigates through the menu structure.▪ Changes settings.▪ Selects a mode.f OK▪ Confirms a selection.▪ Enters a submenu in the menu structure.▪ Switches between displaying actual and desired values, orbetween displaying actual and offset values (if applicable)on the home pages.▪ Goes to the next step (when you are programming aschedule in the menu structure).INFORMATIONIf you press or while changing settings, the changeswill NOT be applied.3.2.2 Status iconsIcon DescriptionSpace operation mode = Heating.Space operation mode = Cooling.Unit is operating.Desired room temperature = preset value (Comfort;daytime).Desired room temperature = preset value (Eco;nighttime).On the room temperature home page: Desired roomtemperature = according to the selected schedule.Actual temperature.Desired temperature.At the next scheduled action, the desired temperaturewill increase.At the next scheduled action, the desired temperaturewill NOT change.At the next scheduled action, the desired temperaturewill decrease.The preset value (Comfort or Eco) or scheduled valueis temporarily overruled.Quiet mode is active.Holiday mode is active or ready to be activated.Button lock mode and/or function lock mode is active.An external heat source is active. Example: Gasburner.A malfunction occurred. Press to display moreinformation about the malfunction.Weather-dependent mode is active.User permission level = Installer.Defrost/oil return mode is active.Hot start mode is active.Emergency operation is active.3.3 Space heating/cooling control3.3.1 Setting the space operation modeAbout space operation modesDepending on your heat pump model, you have to tell the systemwhich space operation mode to use: heating or cooling.If a… heat pump modelis installedThen…Heating/cooling The system can heat up and cool down aspace. You have to tell the system whichspace operation mode to use.