Vaillant ecoTEC pro Installation And Maintenance Instructions Manual

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Vaillant ecoTEC pro Installation And Maintenance Instructions Manual Manual pdf 30 page image

11 Decommissioning30 Installation and maintenance instructions ecoTEC pro 0020209589_0110.6 Installing the compact thermal module12375461. Connect the compact thermal module (2) to the heatexchanger (1).2. Tighten the four nuts (7) in a cross-wise pattern until theburner flange fits closely and uniformly onto the matingsurfaces (if a torque spanner is available, set at 6 Nm).3. Connect the plugs (3) to (6) again.4. Connect the gas line using a new seal. In the process,secure the gas pipe against twisting.5. Open the gas isolator cock.6. Make sure that there are no leaks.7. Check that the sealing ring in the air intake pipe is posi-tioned correctly in the seal seat.8. Reconnect the air intake pipe to the intake nozzle.9. Secure the air intake pipe with the retaining screw.10. Check the gas flow pressure.10.7 Draining the product1. Close the service valves of the product.2. Start the check programme P.06 (diverter valve mid-position).3. Open the drain valves.4. Make sure that the cap of the automatic air vent onthe internal pump is open so that the product can bedrained fully.10.8 Checking the pre-charge pressure for theinternal expansion vessel1. Close the service valves and drain the product.2. Measure the pre-charge pressure of the expansion ves-sel at the vessel valve.Conditions: Pre-charge pressure < 0.075 MPa (0.75 bar)▶ Ideally, you should top up the expansion vessel withnitrogen. Otherwise, top it up with air. Ensure that thedrain valve is open when topping up.3. If water escapes from the valve of the expansionvessel, you must replace the expansion vessel.(→ Page 27)4. Fill the heating installation. (→ Page 19)5. Purge the heating installation. (→ Page 20)10.9 Completing inspection and maintenanceworkOnce you have completed all maintenance work:▶ Check the gas flow pressure. (→ Page 21)▶ Check the CO₂ content and, if necessary, adjust it (airindex setting). (→ Page 22)▶ If required, reset the maintenance interval. (→ Page 24)11 Decommissioning11.1 Temporarily decommissioning the product▶ Press the on/off button.◁ The display goes out.▶ Close the gas isolator cock.▶ On combination products and products with a connecteddomestic hot water cylinder, you must also close the coldwater stop valve.11.2 Decommissioning the product▶ Press the on/off button.◁ The display goes out.▶ Disconnect the product from the power mains.▶ Close the gas isolator cock.▶ Close the cold water stop valve.▶ Drain the product. (→ Page 30)12 Recycling and disposalDisposing of the packaging▶ Dispose of the packaging correctly.▶ Observe all relevant regulations.13 Customer serviceTo ensure regular servicing, it is strongly recommendedthat arrangements are made for a Maintenance Agreement.Please contact Vaillant Service Solutions for further details.Vaillant Service Solutions: 0330 100 3461