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-up22 Installation and maintenance instructions ecoTEC pro 0020244995_027.11.5 Checking the CO₂ content and, ifnecessary, adjusting it (air index setting)1. Start up the product with the check programme P.01.2. Wait at least five minutes until the product reaches itsoperating temperature.3. Measure the CO₂ and CO/CO₂ content at the flue gasanalysis point.4. Compare the measured value with the correspondingvalue in the table.Settings Unit G20naturalgasG31 liquidgasCO₂ after 5 minutesin full load mode withfront casing closedVol.–% 9.2 ± 1.0 10.4 ± 0.5CO₂ after 5 minutesin full load mode withfront casing removedVol.–% 9.0 ± 1.0 10.2 ± 0.5Set for Wobbe indexW₀ kWh/m³ 14.09 21.34O₂ after 5 minutes infull load mode withfront casing closedVol.–% 4.5 ± 1.8 5.1 ± 0.8CO value with full load ppm ≤ 250 ≤ 250CO/CO₂ ≤ 0.0031 ≤ 0.0026Conditions: The CO₂ content must be adjusted21▶ Remove the yellow sticker.▶ Remove the covering cap (1).▶ Set the CO₂ content (value with front casing removed)by turning the screw (2).– Higher CO₂ content: Turn anti-clockwise– Lower CO₂ content: Turn clockwise▶ For natural gas only: Only perform the adjustmentin small increments of a 1/8 turn and wait approx.one minute after each adjustment until the valuestabilises.▶ For liquid gas only: Only perform the adjustment in ex-tremely small increments (approx. 1/16 turn), and waitapprox. one minute after each adjustment until the valuestabilises.▶ After you have implemented the settings, press ( ).▶ If an adjustment is not possible in the specified adjust-ment range, you must not start up the product.▶ If this is the case, inform Customer Service.▶ Refit the covering cap.▶ Install the front casing.7.12 Checking leak-tightness▶ Check the gas pipe, the heating circuit and the domestichot water circuit for leak-tightness.▶ Check that the air/flue pipe has been installed correctly.Conditions: Room-sealed operation▶ Check whether the vacuum chamber has been closedtightly.7.12.1 Checking the heating mode1. Make sure that there is a heat requirement.2. Call up Live monitor.◁ If the product is working correctly, the display showsS.04.7.12.2 Checking the hot water generation1. Open a hot water valve all the way.2. Call up Live monitor.◁ If the hot water generation is working correctly, S.14appears in the display.7.13 Thoroughly flushing the heating installation("hot")1. Operate the appliance until the boiler and the heatingsystem are up to temperature.2. Check the heating system for leaks.3. Connect a hose to the drain valve located at the lowestposition of the heating system.4. Shut off the boiler, open the drain valve and all purgevalves on the radiators and allow the water to flow outof the heating system and the boiler quickly and fully.5. Close the drain valve.6. Fill the heating system again with water as described inFilling the heating installation (→ Page 19) and Purgingthe heating installation (→ Page 20).7. Re-fill the system until the system design pressure of0,1 MPa (1,0 bar) is attained.