Need help?Do you have a question about the Vaillant VUW 346/7-2 (H-GB) and is the answer not in the manual?
Defines product's intended use and required qualifications for safe operation.
Covers critical safety aspects: gas, flue gas, electricity, and general precautions.
Warns about hazards related to explosive substances and high temperatures.
Adheres to national regulations and applicable standards for installation.
Explains CE marking and details found on the product's identification plate.
Identifies and labels the main functional components of the boiler unit.
Lists package contents and provides detailed product dimensions for installation planning.
Specifies suitable installation locations and required clearances around the boiler.
Provides specific guidelines and distances for correct positioning of air/flue terminals.
Covers flue configuration types and procedures for wall-mounting the product safely.
Instructions for safely removing and reinstalling the front and side casings.
Covers initial preparations, gas/water connections, and essential system checks.
Details various methods for installing the condensate discharge system correctly.
Guides on routing cables and safely establishing the main power supply.
Explains accessing the installer level and using diagnostics codes for system settings.
Covers displaying status codes and utilizing check programmes for system monitoring and testing.
Details initial start-up procedures and essential checks for heating water quality.
Covers system filling, purging, flushing, and verification of gas settings.
Guides on diagnostics, setting burner anti-cycling, and adjusting pump output.
Covers setting maximum output, maintenance intervals, and domestic hot water temperature.
Outlines preparation steps and essential component checks for inspection and maintenance.
Details procedures for cleaning specific components like heat exchangers and burners.
Guides on checking service messages and rectifying common product faults.
Provides step-by-step instructions for replacing various product components.
Provides guidance on the correct recycling and disposal of product packaging.
A table detailing required inspection and maintenance tasks and their recommended intervals.
Overviews of check programmes and a comprehensive list of diagnostics codes for system configuration.
Detailed wiring diagram for specific models of the ecoTEC sustain series.
Detailed wiring diagram for the VUW 346/7-2 model of the ecoTEC sustain series.
To Next Page
General