Contents Contents Care and maintenance ....14 Maintenance ........ 14 Safety ..........3 Caring for the product ....14 Action-related warnings ....3 Reading maintenance Intended use ........3 messages ........15 General safety information..... 4 Checking the condensate drain pipework and tundish....
Safety 1 1 Safety ing installations and for hot wa- ter generation. 1.1 Action-related warnings Intended use includes the fol- Classification of action-re- lowing: lated warnings – observance of the operating The action-related warnings instructions included for the are classified in accordance product and any other system with the severity of the pos- components...
1 Safety ▶ If possible, close the gas isol- 1.3 General safety information ator cock on the product. ▶ Warn other occupants in the 1.3.1 Danger caused by building by yelling or banging improper operation on doors or walls. Improper operation may present ▶...
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Safety 1 1.3.5 Risk of death due 1.3.7 Risk of corrosion to changes to the damage due to product or the product unsuitable combustion environment and room air ▶ Never remove, bridge or Sprays, solvents, chlorinated block the safety devices. cleaning agents, paint, adhes- ▶...
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1 Safety 1.3.9 Risk of injury and material damage due to maintenance and repairs carried out incorrectly or not carried out at all ▶ Never attempt to carry out maintenance work or repairs on your product yourself. ▶ Faults and damage should be immediately rectified by a competent person.
Notes on the documentation 2 2 Notes on the 3 Product description documentation 3.1 Product design 2.1 Observing other applicable documents ▶ You must observe all operating instruc- tions enclosed with the system compon- ents. 2.2 Storing documents ▶ Keep this manual and all other applic- able documents safe for future use.
3 Product description 3.3 Description of the display Symbol Meaning Fault in the product – Appears instead of the basic display. S.XX Status code – Heating mode is switched off (summer mode) – Hot water handling mode Operating in- Display showing formation the current heat- is switched off (product...
Function 4 3.5 Serial number Information Meaning on the data The serial number can be found on the plate rear of a plastic plate at the bottom of the 2H / 2E / 3P / Gas group and gas connec- front casing and on the identification plate.
4 Function – A room thermostat is connected to the Button Meaning product or not – Calling up the additional func- – A domestic hot water cylinder with tem- tions perature sensor is connected to the – Navigating between individual product or not menu items –...
Function 4 4.4 Setting the heating flow 4.5 Setting the hot water temperature temperature Note Note If the eBUS room temperature con- If the eBUS room temperature con- trol is connected to the product, trol is connected to the product, the domestic hot water temperat- the domestic hot water temperat- ure and the heating flow temperat-...
4 Function ▶ Press Conditions: The temperature is controlled via the ◁ domestic hot water cylinder's temperature sensor. The display switches to the basic ▶ Set the hot water temperature on the display. controller. See the instructions for the 4.7 Guaranteeing the correct controller.
Function 4 4.7.2 Filling the heating installation Applicability: Product with filling device Caution. Risk of material damage due to heating water that is ex- tremely calciferous or corros- ive or contaminated by chem- icals. Unsuitable tap water damages ▶ the seals and diaphragms, Open all radiator valves (thermostatic blocks components in the radiator valves) of the heating installa-...
5 Troubleshooting 5 Troubleshooting 4.9 Protecting the heating installation against frost 5.1 Detecting and rectifying faults 4.9.1 Frost protection function ▶ If faults occur or fault messages (F.XX) Caution. are displayed, proceed as set out in the Risk of material damage due tables in the appendix.
Decommissioning 7 ▶ ▶ Clean the casing with a damp cloth and Temporarily decommission a little solvent-free soap. the product only if no frost is expected. 6.3 Reading maintenance messages ▶ Press the on/off button. If the symbol is shown in the display, the ◁...
Herstellergarantie gewähren wir nur bei Installation durch einen anerkannten Fach- handwerksbetrieb. Dem Eigentümer des Geräts räumen wir diese Herstellergarantie entsprechend den Vaillant Garantiebedingungen ein. Garantiearbeiten werden grundsätzlich nur von unserem Kundendienst ausge- führt. Wir können Ihnen daher etwaige Kosten, die Ihnen bei der Durchführung von Arbeiten an dem Gerät während der...
Appendix Appendix A Operator level – overview Setting level Values Increment, select, explanation Default set- ting Min. Max. Domestic hot water mode (product with integrated hot water generation or connected domestic hot water cylinder with temperature sensor) Water temperature Current value < 35 = OFF 35 ℃...
Appendix Status code Meaning S.46 Protection mode: Minimum load C Troubleshooting and fault elimination C.1 Troubleshooting Symptom Possible cause Measure ▶ The system pres- The system pressure Fill the heating installation. (→ Page 13) sure is flashing on the is too low: < 0.05 MPa display (<...
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