Vaillant VRT 390 Operating And Installation Instructions

Vaillant VRT 390 Operating And Installation Instructions Manual pdf 6 page image

GB6Operating elements1 Day temperature selectorfor adjusting to required room temperature.2 Override/one-off filling of cylinderfor temporary deactivation of heating program or for one-off heating up of tank water (Domestic hot water for VUWcombination boilers only in GB)5 Device cover6 DisplayThe display shows the time and day, along with controllermode and status information7 Operating mode switch”Program“ settingIn this setting, the room temperature is controlled by thepre-set program.“Heating“ settingIn this setting, the room temperature is permanentlycontrolled according to the temperature pre-selected on theday-temperature selector (1).“Reduce“ settingIn this setting, the room temperature is permanentlycontrolled according to the reduced (night) temperature.Display, OverviewA Day of the weekB Status indicatorHeating mode The appliance is in heating mode.Hot Water The appliance is in hot water mode.Party The appliance is in party (override) mode(see page 10).The “Heating mode“ display message isblocked-out as heating and hot water areboth available in this operating mode.1x filling The appliance fills the hot-water tank on asingle occasion (see page 11). (Notapplicable in GB).Holiday The holiday program is active (see p. 34).Error messages (see page 40)Malfunction There is heating system fault.Connection Data transfer from the controller to theheating unit has been interrupted.Maintenance The heating appliance must be serviced.(only available with compatible boilerand electronics; not available in GB)D Operating mode "Night setting”E Operating mode "Heating”F Operating mode "Program”G Actual temperature(only shown on wall-mounted version)H Actual time