Contents Contents Safety ..............3 Action-related warnings ......... 3 Intended use ............3 General safety information ........3 Notes on the documentation ......5 Observing other applicable documents ....5 Storing documents..........5 Validity of the instructions ........5 Product description..........5 Front view ..............
Safety 1 document shall be considered improper use. Safety Any direct use in industrial or commercial Action-related warnings processes is also deemed to be improper. Classification of action-related warnings Caution. The action-related warnings are classified in Improper use of any kind is prohibited. accordance with the severity of the possible danger using the following warning signs and General safety information...
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1 Safety 1.3.4 Risk of death due to blocked or 1.3.8 Risk of material damage caused by leaking flue pipework frost ▶ Ensure that the heating installation always What to do if you smell flue gas in the prop- erty: remains in operation during freezing con- ditions and that all rooms are sufficiently ▶...
Article number Gas Council Number VU 156/6-3 (H-GB) 0010025271 41-694-30 ecoFIT sustain 615 VU 186/6-3 (H-GB) 0010025272 41-694-31 ecoFIT sustain 618 VU 306/6-3 (H-GB) 0010025273 41-694-32 ecoFIT sustain 630 Product description Front view Current heating flow Reset button temperature, operating...
Product designation 2H, G20 – 2 kPa (20 Factory setting for type of gas and gas Vaillant is a licensed member of the Benchmark Scheme mbar) connection pressure which aims to improve the standards of installation and com- Cat.
Operation 4 Operation Adjustment and display levels The product has two adjustment and display levels. Operating concept The end user level contains information and setting options that you require as the end user. Operator Function control The installer level is reserved for the competent person. It is element protected by a code.
4 Operation Setting the hot water temperature 4.11 Guaranteeing the correct filling pressure of the heating installation Danger! 4.11.1 Checking the filling pressure of the heating Risk of death from legionella. installation Legionella multiply at temperatures below Note 60 °C. To ensure that the heating installation operates ▶...
Troubleshooting 5 Troubleshooting Turn the filling cock on slowly and allow water to flow in until the required filling pressure has been reached. Close the heating water supply. Detecting and rectifying faults Purge all radiators. ▶ If faults occur, proceed in accordance with the table in Check the filling pressure in the display.
To ensure regular servicing, it is strongly recommended on/off button, and when the gas isolator cock that arrangements are made for a Maintenance Agreement. is open. Please contact Vaillant Service Solutions for further details: ▶ Temporarily decommission the product Telephone: 0330 100 3461 only if no frost is expected.
Appendix Appendix Status codes – Overview Status codes that are not listed here can be viewed in the installation instructions. Status code Parameter Meaning Displays in heating mode Heating: No heat demand S.00 Heating: No heat demand Heating mode: Pump pre-run S.02 Heating mode: Pump pre-run Heating mode: Ignition...
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