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Need help?Do you have a question about the Vaillant ecoTEC plus 1206 VU GB 1206/5-5 and is the answer not in the manual?
Safety precautions for competent persons and associated risks.
Required space around the product for installation and maintenance.
Procedures and conditions for mounting the boiler on a wall.
Steps and precautions for connecting the gas supply.
Guidance on connecting the heating water system.
Detailed steps for connecting flow and return pipes.
Information on connecting air/flue pipes.
Instructions for electrical connections and safety.
How to safely connect the product to the mains power.
Detailed steps for connecting internal and external wiring.
Guidance on the start-up process using checklists.
Water quality checks and treatment before filling.
Measures to avoid damage from low system pressure.
Step-by-step guide to filling and purging the system.
How to correctly fill the condensate trap to prevent gas escape.
Verifying and adjusting the air/gas mixture.
Measuring and adjusting CO2 for optimal combustion.
General check for leaks in gas, heating, and hot water circuits.
Importance of regular checks and maintenance for safety.
How to view error codes displayed by the unit.
General section for replacing faulty parts.
Step-by-step guide to replacing the gas valve.
List of diagnostic codes and their meanings.
List of fault codes, their meanings, and causes.
Checklist for verifying initial installation and commissioning.
Checklist for ensuring proper boiler installation and commissioning.
Detailed checklist for system commissioning.
General