4 OperationUser reference guide4EGSQH10S18AA9WDaikin Altherma ground source heat pump4P351749-1D – 2016.093.1 Components in a typical systemlayoutdabcefg BC AA Main zone. Example: Living room.B Additional zone. Example: Bedroom.C Technical room. Example: Garage.a Brine loopb Indoor unit heat pumpc Domestic hot water (DHW) tankd User interface at the indoor unite User interface in the living room, used as room thermostatf Underfloor heatingg Heat pump convectors or fan coil units4 Operation4.1 Overview: OperationYou can operate the system via the user interface. This partdescribes how to use the user interface:Part DescriptionAt a glance ▪ Buttons▪ Status iconsBasic usage Information about:▪ Home pages, where you can read outand change settings that are meant fordaily usage▪ Menu structure, where you can read outand configure settings that are NOTmeant for daily usage▪ ON/OFF controlsSpace heating control How to control space heating:▪ Setting the space operation mode▪ Controlling the temperatureDomestic hot watercontrolHow to control domestic hot water:▪ Reheat mode▪ Scheduled mode▪ Scheduled + reheat modePart DescriptionAdvanced usage Information about:▪ Quiet mode▪ Holiday mode▪ Reading out information▪ Date, time, units of measurement,contrast and backlight▪ User profile and home pages▪ Locking and unlocking buttons andfunctionsPreset values andschedules▪ How to use preset values▪ How to select and program schedules▪ Overview of predefined schedulesMenu structure Overview of menu structureInstaller settings table Overview of installer settings4.2 The user interface at a glance4.2.1 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, DHW tank 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