Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions Manual

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Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions Manual Manual pdf 19 page image

Start-up 60020029173_04 ecoTEC plus Installation and maintenance instructions 196.9 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.11. Install the condensate trap's cartridge (1) in accordancewith the enclosed installation manual.2. Fill the condensate trap in accordance with the en-closed description.6.10 Gas ratio setting6.10.1 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. In some supply areas, these settings mayneed to be adjusted at the installation site.Conditions: The product design is not compatible with the local gasgroup▶ Do not start up the product.Conditions: The product design is compatible with the local gas group▶ Proceed as described below.6.10.2 Checking the leak-tightness of the flue gassystem and for flue gas recirculation1. Check that the flue gas system is intact, in accordancewith British Gas TB 200.2. If the flue gas system is longer than 2 m, we urgentlyrecommend that you test the system for flue gas recir-culation as described below.13. Use the air analysis point (1) to check for flue gas recir-culation.4. Use the flue gas measuring instrument.5. If you discover CO or CO2 in the fresh air, search for aleak in the flue gas system or for the flue gas recircula-tion.6. Eliminate the damage.7. Repeat the above-mentioned test to determine if thefresh air contains CO or CO2.8. If you cannot eliminate the damage, you must not startup the boiler.6.10.3 Checking the gas flow rateThe boiler is fitted with a multifunctional automatic gas valvewhich ensures that the precise air/gas ratio is provided un-der all operating conditions. The gas flow rate has been setduring production and does not require adjustment. With thefront casing fitted check the gas flow rate of the boiler as fol-lows:▶ Start up the product with the check programme P.01.▶ In addition, ensure that maximum heat can be dissipatedinto the heating system by turning up the room thermo-stat.▶ Wait at least 5 minutes until the boiler has reached itsoperating temperature.▶ Ensure that all other gas appliances in the property areturned off.▶ Measure the gas flow rate at the gas meter.▶ Compare the measured values with the correspondingvalues in the table.Nominal value for thenet heat supply in kWin accordance withBS EN 483H gas in m³/hNominal +5% −10%76.2 8.10 8.51 7.2995.2 10.10 10.61 9.09114.3 12.10 12.71 10.89