Vaillant ECOTEC EXCLUSIVE 627 VU 256/5-7 Installation And Maintenance Instructions Manual

Vaillant ECOTEC EXCLUSIVE 627 VU 256/5-7 Installation And Maintenance Instructions Manual Manual pdf 23 page image

Start-up 70020193966_01 ecoTEC exclusive Installation and maintenance instructions 23▶ In the next few minutes, measure the CO/CO₂ contentand the gas flow at maximum load.▶ Use to end check programme P.01.▶ Start check programme P.02.◁ The heat generator starts in heating mode.◁ The heat generator switches to status S.93 afterapproximately two minutes for calibration.◁ Do not measure the CO/CO₂ content or the gas flowduring calibration (status S.93).◁ If the heat generator permanently switches fromstatus S.93 to status S.04 after approximately fiveto six minutes, calibration at minimum load is com-plete.▶ In the next few minutes, measure the CO/CO₂ contentand the gas flow at minimum load.▶ Use to end check programme P.02.◁ Calibration and measurement in heating mode arecomplete.7.13.5 Calibrating the heat generator andmeasuring the CO/CO₂ content and gasflow in cylinder charging mode1. The following steps are only required if calibration andmeasurement in heating mode (→ Page 22) could notbe completed successfully.2. Ensure that there is a heat demand at the domestic hotwater cylinder.3. If required, open all of the draw-off point and allow thedomestic hot water cylinder to cool.4. Set the domestic hot water temperature at the heat gen-erator to the maximum.◁ There is a risk of scalding at the domestic hot waterdraw-off points if the water temperature is set to themaximum.Danger!Risk of burns and scalding!There is a risk of scalding at the domestic hotwater draw-off points if the water temperatureis set to the maximum.▶ Avoid contact with the water that escapesfrom the domestic hot water draw-offpoint.5. Start check programme P.01.◁ The heat generator starts in cylinder charging mode.◁ The heat generator first switches between statusS.21 and status S.23.◁ The heat generator switches to status S.93 afterapproximately two minutes for calibration.◁ Do not measure the CO/CO₂ content or the gas flowduring calibration (status S.93).Conditions: The domestic hot water temperature in the cylinder reachesthe maximum water temperature in the next five to six minutes.▶ The heat generator does not switch to status S.24.NoteCalibration is not complete and the CO/CO₂content and gas flow cannot be measured.▶ Use to end check programme P.01.6. Alternatives 1 / 2▶ Ensure that there is a heat demand at the domestichot water cylinder.▶ If required, open all of the draw-off point and allowthe domestic hot water cylinder to cool.▶ If required, carry out calibration and measurementagain.6. Alternatives 2 / 2▶ Check the installation and, if required, carry out cal-ibration and measurement again with the correctinstallation.Conditions: The domestic hot water temperature in the cylinder does notreach the maximum water temperature in the next five to six minutes.▶ If the heat generator switches from status S.93 to statusS.24 after approximately five to six minutes, calibrationat maximum heat input is complete.▶ In the next few minutes, measure the CO/CO₂ contentand the gas flow at maximum load.▶ Use to end check programme P.01.▶ Start check programme P.02.◁ If the heat generator permanently switches fromstatus S.93 to status S.24 after five to six minutes,calibration at minimum load is complete.▶ In the next few minutes, measure the CO/CO₂ contentand the gas flow at minimum heat input.▶ Use to end check programme P.02.◁ Measurement and calibration in cylinder chargingmode are complete.7.14 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.7.14.1 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.