Is this pressure ok?

[DanUK]

Hi all, I hope you can put my mind at ease please!

I have an unvented system at home and recently the gauge pressure reading has been above 3psi if I haven’t been home all day, up to 3.5. Previously it always stayed at or below 3psi. I was told before it shouldn’t go above 3.

Having checked the pressure valves they state 6psi though so was I told incorrect information? I’ve attached some pics.

Thanks in advance,
Dan

 

[DanUK]

Hi all, I hope you can put my mind at ease please!

I have an unvented system at home and recently the gauge pressure reading has been above 3psi if I haven’t been home all day, up to 3.5. Previously it always stayed at or below 3psi. I was told before it shouldn’t go above 3.

Having checked the pressure valves they state 6psi though so was I told incorrect information? I’ve attached some pics.

Thanks in advance,
Dan

View attachment 33685

View attachment 33686

View attachment 33687

This one shows the piping too!

 

[ShaunCorbs]

normally 3-3.5 bar (depending on what the prv is set to) is normal the water board could of upped your pressure

 

[DanUK]

Thanks! By the valves though is it safe to go up to 6psi / when should I worry and call a plumber?

 

[ShaunCorbs]

Thanks! By the valves though is it safe to go up to 6psi / when should I worry and call a plumber?

should stay around 3-3.5 bar, any time you see water coming through the black plastic tundish (follow the pipes from the red safety valves you should see a black thing) then you would need to call a g3 plumber

when was the last time you had the cylinder serviced?

 

[DanUK]

Thanks. Yep I’ve seen that before and had to have some bits done to it (can’t remember what) but that was about 9 months ago.

Out of curiosity why is it between 3-3.5 If the red valves have 6psi or 7psi on them?

Thanks for your help!

 

[Best]

The pressure relief valves are at bar pressure opening.
They are higher than operating pressure, so not to open at normal pressures, but will open at the higher pressures which are getting near units safety limit. There is also a heat limit release there.
There could be a fault causing slight increase of pressure and due to lack of proper service
Get your G3 service person to explain it to you while they service it now

 

[DanUK]

Ah thanks.

So based on what I’ve sent it looks okay as long as it doesn’t go above 3.5? The tundish is fine.

Thanks!

 

[Best]

Actually I now have doubt about that install. But I could be wrong, as photos don’t show it all.
Does the pipe with the stopcock drop down and connect to bottom of cylinder ?

 

[DanUK]

Does this help?

Video Uploadfiles.io - EDB2D704-1F36-4F7D-BC9A-599926DBE52B.MOV