mega flow system over pressurising daily

[stardanny]

Try this:

Before going to bed,

on the programmer, switch off hot water and heating,

Check pressure when heating system is cold ( don't worry about hot water system )

Go to bed.

Wake up in morning.

Check pressure ( make sure it still cold ) and compare with last night reading.

Make sure the filling loop is disconnected.

Let us know.

Dan.

 

[dino89]

will give this tomorrow night as i need to get my caps from the shed again
just looked at it now and its just going over the 2bar again

 

[Agile]

just been up and checked pressure with heating and hot water running since last post and its risen by 0.2 bar

Thats exactly what we expect, an increase of 0.2 to 0.3 Bar from cold to hot.

Hopefully now the expansion vessel is correctly pressurised all your woes might be allayed!

Tony

 

[dino89]

i turned heating and hot water off last night but fill loop was still connected and this morning it was 2,5 bar so increased without ant heating or hot water on
done this just for my own curiosity as the hot water comes on twice a day since having it installed approx 3-4 years ago
i have now removed fill loop again and capped off pipe and will try over night again with no heating or hot water running and report tomorrow
i released pressure to 1.3 bar