User manual VAILLANT VRT 390

[. . . ] "Reduce" setting In this setting, the room temperature is permanently controlled according to the reduced (night) temperature. The "Heating mode" display message is blocked-out as heating and hot water are both available in this operating mode. Connection Data transfer from the controller to the heating unit has been interrupted. (only available with compatible boiler and 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 Once the controller is connected and the timer set, it efficiently runs the heating program. [. . . ] The activation of the circulation pump is also carried out via a maximum of three "time windows" per day. Try the example setting (it won't take more than 10 minutes) and you will see how easy the programming is. Heating should come on during the following times: Monday ­ Friday Heating on: 05. The display shows a flashing "Programme 1" with the chosen days, e. The display shows "On Time 1", which means you are setting the starting time for heating period 1. Turn button (3) to the left until "5:30" appears on the upper left of the display. The display shows "Off Time 1", which means you are setting the off time for heating for period 1. Turn button (3) to the right until "9:00" appears on the upper right of the display. All new settings are automatically Heating period 1 has now been programmed. Turn the knob (3) to the right until the display shows "Programme 2". The display will show , , - -:- -", if the set on and off times are the same. Press the knob (3) until the heating on time (upper left of the display) starts flashing. From now on you will always see the actual programmed time displayed (even if starting and stopping times are the same). The display shows "On Time 2", which means you are setting the starting time for heating period 2. Adjust the timer setting for window 2 in the same way as described for window 1. Press knob (3) again until the display shows "Programme 2" are flashing in the display. Turn the knob (3) to the left until the display shows "Programme 1". Press knob (3) again until days "Mo-Fr" are flashing in the display. Turn knob (3) to the right until the days "Sa-Su" are flashing in the display. Press button (3) until the time display on the left of the display starts flashing. The display shows "On Time 1", which means you are setting the starting time for heating period 1 on weekends. 4 Set hot water supply periods (For GB VUW combination boilers with warmstart only) Your thermostat allows you to program up to 3 periods of time per day for the supply of hot water. [. . . ] Make two fixing holes (3) of 6mm diameter as per the attached drawing and insert the wall plugs supplied. connect the cable as shown to the terminal strip (1) of the thermostat. Place the thermostat top onto the mounting plate in such a way that the fixing lugs at the top of the thermostat locate into the fixing holes. ALWAYS shut off the power supply and ensure it cannot be reconnected by accident before starting work on the system. [. . . ]