Vaillant ecoTEC plus 806 VU GB 806/5-5 Installation And Maintenance Instructions Manual

Also see for ecoTEC plus 1006 VU GB 1006/5-5: Installation and maintenance instructions

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Vaillant ecoTEC plus 806 VU GB 806/5-5 Installation And Maintenance Instructions Manual Manual pdf 21 page image

Start-up 70020134823_04 ecoTEC plus Installation and maintenance instructions 2118. If there is still too much air in the heating installation atthe end of the check programme P.00, restart the checkprogramme.19. Check all connections and the entire system for leak-tightness.7.12 Flushing the heating installation for the firsttime ("cold")NoteThe complete heating system must be flushedat least twice: Once with cold water and oncewith hot water in accordance with the followinginstructions.1. Check whether all thermostatic radiator valves and bothservice valves on the product are open.2. Connect a hose to the drain valve that is located at thelowest position in the heating system.3. Open the radiator valves and the drain valves so thatthe water can drain quickly. Start at the next point in thesystem and open the purging valves on the radiators sothat the contaminated water can completely drain.4. Close the drain cocks.5. Refill the heating system with water.6. Check that the expansion relief valve of the heatingsystem is functioning correctly by turning the handleon the valve.7. Check the pressure in the heating system and top upwith water if necessary.8. Close the filling valve and the cold water valve.7.13 Filling the condensate trapDanger!Risk of poisoning due to escaping fluegas.An empty or insufficiently filled condensatetrap may allow flue gas to escape into theroom air.▶ Fill the condensate trap with water beforestarting up the product.211. Remove the lower section of the condensate trap(2) byunscrewing it from the condensate trap (1).2. Fill the lower section of the condensate trap with waterup to about 10 mm below the upper edge.3. Secure the lower section of the condensate trap cor-rectly to the condensate trap again.7.14 Checking and adjusting the gas ratiosetting7.14.1 Checking the factory settingCaution.An incorrect gas group setting may causeoperating faults or a reduction in theworking life of the product.If the product design does not match the localgas group, malfunctions will occur or you willhave to replace product components prema-turely.▶ Before you start up the product, comparethe gas group information on the identific-ation plate with the gas group available atthe installation site.The product's combustion has been factory tested and ispreset for operation with the gas group indicated on the iden-tification plate.Conditions: The product design is not compatible with the local gasgroupIf you want to operate the product with liquid gas, do not startup the product.A gas conversion must only be carried out by Vaillant Cus-tomer Service or the manufacturer of the product.▶ Notify Vaillant Customer Service or the manufacturer ofthe product that you want a gas conversion carried out.