Vaillant 0010020394 Installation And Maintenance Instructions Manual

Also see for 0010020394: Installation and maintenance instructions

Handing the product over to the operator 90020230529_02 ecoFIT sustain Installation and maintenance instructions 211▶ Regulate the pressure using the adjusting screw (1).Position of the adjustingscrew Notes/applicationRight-hand stop (screwedall the way in)If the radiators do not heatup sufficiently at the defaultsetting. In this case, you mustset the pump to the maximumspeed.Mid-position (six anti-clockwise rotations) Default settingFive further anti-clockwiserotations starting from themid-positionIf noises are produced in theradiators or radiator valves.▶ Install the front casing. (→ Page 10)8.4 Setting the hot water temperatureDanger!Risk of death from Legionella.Legionella multiply at temperatures below60 °C.▶ Ensure that the operator is familiar with allof the Anti-legionella measures in orderto comply with the applicable regulationsregarding legionella prevention.▶ Set the hot water temperature.Conditions: Water hardness: > 3.57 mol/m³– Hot water temperature: ≤ 50 ℃9 Handing the product over to theoperator▶ When you have finished the installation, attach the stickersupplied (in the operator's language) to the productcover.▶ Explain to the operator how the safety devices work andwhere they are located.▶ Inform the operator how to handle the product.▶ In particular, draw attention to the safety informationwhich the operator must follow.▶ Inform the operator that they must have the productmaintained in accordance with the specified intervals.▶ Instruct the operator about measures taken to ensure thesupply of combustion air and flue gas pipe.10 Troubleshooting10.1 Rectifying faults▶ If fault messages (F.xx) appear, rectify the fault afterreferring to the table in the appendix or using the checkprogrammes. (→ Page 15)Overview of fault codes (→ Page 33)If several faults occur at the same time, the display showsthe corresponding fault messages for two seconds each inalternation.▶ Press (max. three times) to restart the product.▶ If you are unable to remedy the fault and the fault recursdespite reset attempts, contact customer service.10.2 Calling up and clearing the fault memoryThe last 10 fault messages are stored in the fault memory.▶ Call up the installer level. (→ Page 15)▶ Navigate to the fault codes.◁ The number of faults that have occurred is shown inthe display and the faults that are currently called upare displayed with their fault numbers F.xx.▶ Press or to call up individual fault messages.▶ To delete the entire fault list, navigate to diagnostics codeD.094 in the installer level.▶ Set the diagnostics code to 1, and confirm by pressing.10.3 Resetting parameters to factory settings1. Navigate to diagnostics code D.096 in the installer level.2. Set the diagnostics code to 1, and confirm by pressing.10.4 Preparing the repair work1. Switch off the product.2. Disconnect the product from the power mains.3. Remove the front casing.4. Close the gas isolator cock.5. Close the service valves in the heating flow and in theheating return.6. Close the service valve in the cold water pipe.7. Drain the product if you want to replace water-bearingcomponents of the product.8. Ensure that water does not drip on live components(e.g. the electronics box).9. Use only new seals and O-rings. Do not use any addi-tional sealing materials.