Is a pressure relief valve needed

[deanomc]

I have a Vaillant ecoTEC Pro 28 combi boiler installed but noticed that there is no pressure relief valve between the flow and return pipe. is this needed?

 

[jonnyswamp]

The PRV will be inside the boiler casing, which you can't touch
I assume you're referring to an auto by-pass valve, in which case, yes there should be

 

[deanomc]

Sorry. Yes, I am referring to the automatic bypass valve. If I set one of the radiators in the house to be on at all times will this do the same job as the automatic bypass valve, or do regulation state I need one. cheers.

 

[Atouchofgas]

Not according to the manual which says there's an adjustable auto bypass inside the boiler

 

[deanomc]

You are a star 'Atouchofgas' Done a bit of searching and this is what the manual states.
An automatic system by-pass is provided in the boiler.
The boiler is suitable for use in systems with thermostatic
radiator valves and no additional by-pass is required.
The by-pass valve is adjustable, see section 5.8.


I'm taking from this that I dont need to worry about it then.

 

[deanomc]

ps Atouchofgas. I was just about to buy a by-pass valve online and I received a mail saying that someone has replied to my question on this forum. So just like to say thanks for saving £30 ish quid. Thanks

 

[deanomc]

Thanks all

 

[IDCHAPPY]

Most boilers for the last 10 years (condensing) have had ABVs built into the boilers.

 

[jonnyswamp]

Nice one, didn't realise the pros had a bypass as well, thought it was just the plus models
Every day's a school day, should have checked before I posted, apologies deanomc

 

[gassafe]

ps Atouchofgas. I was just about to buy a by-pass valve online and I received a mail saying that someone has replied to my question on this forum. So just like to say thanks for saving £30 ish quid. Thanks

Plus the inhibitor & price of a plumber... That makes 150

 

[ShaunCorbs]

Plus the inhibitor & price of a plumber... That makes 150

naa its not gas i will have a go