what and where is the 'boiler CH service valve'?

[paulOutside]

Reviewing the Valliant ecoTEC install manual, and steps noted in this book for re-pressurising the internal expansion vessel states the following

- Ensure the boiler CH service valves are closed.
- Release the pressure from the boiler.
- Remove the valve cap from the expansion vessel charge point.
- Check that the internal charge pressure of the expansion vessel is between 0.75 and 0.9 bar (if the pressure is lower than this the vessel should be re-pressurised using an air pump
- Refit the valve cap
- Re-pressure boiler and heating system

what is meant by the 'CH (Central Heating) service valves' - would they by many on a system or just one place to go? is it boiler specific?

thanks

 

[Riley]

Can I ask why you want to know??

 

[Riley]

And are you gas safe

 

[snowhead]

Looks like they're wanting to check or repressurise the internal vessel, which unfortunately is a Gas safe registered area only.

 

[elbistan]

Why do you feel the expansion vessel needs charging.

 

[Aire]

By asking this question, I can confidently say that you lack the experience or knowledge required to undertake whatever it is your thinking of 😉

 

[townfanjon]

Leave “well alone” , it could all “end in tears” .
Especially when you turn the valve back on .

 

[Harvest Fields]

Reviewing the Valliant ecoTEC install manual, and steps noted in this book for re-pressurising the internal expansion vessel states the following

- Ensure the boiler CH service valves are closed.
- Release the pressure from the boiler.
- Remove the valve cap from the expansion vessel charge point.
- Check that the internal charge pressure of the expansion vessel is between 0.75 and 0.9 bar (if the pressure is lower than this the vessel should be re-pressurised using an air pump
- Refit the valve cap
- Re-pressure boiler and heating system

what is meant by the 'CH (Central Heating) service valves' - would they by many on a system or just one place to go? is it boiler specific?

thanks

Please leave you boiler alone unless you are gas safe registered. If you are please PM either @Harvest Fields @ShaunCorbs or @Riley with your details. Otherwise please get a professional in to do it.

 

[Harvest Fields]

Good advice from the engineers above.

 

[Harvest Fields]

Thread closed on temp basis until we hear if OP is gas safe registered.