Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual

Also see for ecoTEC pro 24: Instructions for use Instructions for installation and servicing Instructions for installation and servicing Instructions for installation and servicing

7 Start-up20 Installation and maintenance instructions ecoTEC pro 0020244995_027.8 Purging the heating installation1. Select the check programme P.00.◁ The product does not start up, the internal pumpoperates intermittently and purges either the heatingcircuit or the hot water circuit.◁ The display shows the filling pressure of the heatinginstallation.2. Make sure that the filling pressure of the heating install-ation does not fall below the minimum filling pressure.– ≥ 0.08 MPa (≥ 0.80 bar)◁ At the end of the filling procedure, the filling pres-sure of the heating installation should be at least0.02 MPa (0.2 bar) above the counter-pressureof the expansion vessel ("Exp") (PInstallation ≥ PExp +0.02 MPa (0.2 bar)).3. If there is still too much air in the heating installation atthe end of the check programme P.00, repeat the checkprogramme.7.9 Filling and purging the hot water system1. Open the cold water stop valve on the product.2. Fill the hot water system by opening all the hot waterdraw-off valves until water escapes.7.10 Filling the condensate trap11. Remove the lower section from the condensate trap (1).2. Fill the lower section with water up to 10 mm below theupper edge.3. Attach the lower section to the condensate trap.7.11 Gas inspection7.11.1 Checking the factory-set gas ratio settingCaution.Risk of material damage caused by mak-ing unauthorised settings.▶ Never modify the factory setting of the gaspressure regulator of the gas valve.▶ Before you start up the product, compare the gas groupinformation on the identification plate with the gas groupavailable at the installation site.Conditions: The product design is not compatible with the local gas groupOnly Vaillant Service Solutions may perform a gas conver-sion.If a gas conversion to liquid gas has been carried out, thesmallest possible partial load is higher than is shown on thedisplay. The correct values can be found in the Technicaldata in the appendix.▶ Call Vaillant Service Solutions (0330 1003 143).▶ Do not start up the product.Conditions: The product design is compatible with the local gas group▶ Proceed as described below.7.11.2 Checking the leak-tightness of the flue gasinstallation and flue gas recirculation1. Check the flue gas installation is intact in accordancewith the latest gas safe technical bulletin and informa-tion supplied in the installation instructions.2. For extended flue gas installations check for flue gasrecirculation using the air analysis point.3. Use a flue gas analyser.4. If you discover CO or CO2 in the supply air, search forthe leak in the flue gas installation or for signs of fluegas recirculation.5. Eliminate the damage properly.6. Check again whether the supply air contains any CO orCO2.7. If you cannot eliminate the damage, do not start up theproduct.7.11.3 Checking the gas flow rateThe gas flow rate has been set during production and doesnot require adjustment. With the front casing fitted check thegas flow rate of the boiler as follows:▶ 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.