Vaillant VU GB 806/5-5 Operating Instructions Manual

Also see for VU GB 1006/5-5: Installation manual

OperationOperating instructions ecoTEC plus 0020134822_01 1144.6 Preparing for start-up4.6.1 Opening the isolator devicesi The isolator devices are included in the scope ofdelivery of your boiler. The isolator devices arefitted by your competent person on site.> He must explain to you the position and handling ofthese components.1234.6 Opening the isolator devices(shown using the example of service valves)> Open the gas isolator cock (2), by pushing the gas isola-tor cock in and turning it anti-clockwise.> Check that the heating flow (3) and heating return (1)service valves are open. This is the case if the T-handleon the service valve matches the direction of the pipe.4.6.2 Switching on the boilerb Caution.Material damage caused by frost.Frost protection and monitoring devices areonly active while the boiler is connected upto the power supply.> Do not isolate the boiler from the powersupply.> Leave your boiler switched on at the on/off switch.To ensure that the frost protection and monitoring devicesremain active, switch your boiler on and off using the con-troller (see the corresponding operating instructions).¬ Section 8 describes how to fully shut down your boiler.50124.7 Switching on the boiler> Press the on/off switch (1) to switch on the boiler.If the boiler is switched on, the current heating flow tem-perature and other information will appear in the display(2) (Fig. 4.5 ).To set your boiler to suit your needs, read section 4.7 tosection 4.8 which describe the setting options for hotwater generation and Heating mode.