Operation14 Operating instructions ecoTEC pro 0020129673_0055.3.1 Setting the hot water temperature455.5 Setting the hot water temperature> Press the left-hand selection button (" ").The domestic DHW temperature that is set is shown flash-ing on the display.> Use the minus button or the plus buttonto change the domestic hot water tempera-ture.> Confirm the change by pressing the right-hand selectionbutton (“ ”).If you have connected an eBUS auto controller to the boiler,you can set the DHW target temperature on the controller.> Ask your approved skilled tradesman whether an eBUSauto controller is connected.If you are using an eBUS auto controller:> Set the hot water temperature on the boiler to the maxi-mum possible temperature.> Set the desired hot water temperature (hot water targettemperature) on your controller.5.3.2 Activating/deactivating Comfort modeComfort mode immediately supplies you with hot water atthe required temperature, without you having to wait forthe water to heat up. To do this, the plate-type heatexchanger of the ecoTEC pro is kept at your selected tem-perature level.Comf.on5.6 Switching Comfort mode on and off> Press the left-hand selection button (" ").> Press the right-hand selection button(" ")."Comf. on" or "Comf. off" are shown flashing in the display.> Use the minus button or the plus buttonto activate or deactivate Comfort mode.> Confirm the change by pressing the right-hand selectionbutton (“ ”).When you have activated Comfort mode, the symbol " " isshown in the basic display.When you have deactivated Comfort mode, the symbol " "goes out in the basic display.5.4 Setting a room thermostat or weathercompensator215.7 Setting the room temperature controller/weather controlledregulator> Set the room thermostat, weather compensator (1) andthermostatic radiator valves (2) as specified in the oper-ating instructions for these accessories.