Open vented HW problems

[Al-Glasgow]

When using the central heating on the Baxi solo, all is fine.
As soon as the HW is called for the constant bubbling through the pipework especially around the cylinder is really annoying.

I am a plumber, system been running fine with inhibitor, I added an AAV replacing the old manual bleed screw, which seems to make no difference.

Suggestions would be good.

Al

 

[doitall]

Post a pic and we can tell you how to re-pipe it properly.

 

[Al-Glasgow]

airing cupboard pic with midpos valve etc ?

system has run for at least 3 years perfectly quiet DoIt All.

Al

 

[doitall]

airing cupboard pic with midpos valve etc ?

system has run for at least 3 years perfectly quiet DoIt All.

Al

That would do for a start.

 

[Al-Glasgow]

ok

//www.diynot.com/network/Al-Glasgow/albums/

dont know if pic will load for you.

Al

 

[tonybhoy]

Might be the coil in the cylinder that's goosed, mate.

Another pic of the feed and expansion would help

 

[kevplumb]

3 port valves fell off

 

[doitall]

Are the primary pipes running down hill to the cylinder ??

Where is the cold feed and vent.

 

[Al-Glasgow]

The boiler is downstairs in kitchen DoItAll if thats what you mean ?.

Thanks for the help so far, especially Kevplumb lol.

I'll try upload more pics of HW draw off etc.

If the coil was gone, shouldnt my F&E overflow ?.

Cheers
Al

 

[gassafeman]

Is it me, or is there a natural air lock just waiting to happen. What about the c/f & o/v configuration?

What speed is the pump on?

Why is the m/v laying on the floor?

Paul

 

[Al-Glasgow]

those are older photos when i replaced the M/V 2 winters back.

The pump is on speed 3, has always been.

Im now thinking Ive been brushing my teeth, and 2 yr old son with INHIBITOR.

When you ask for pics of F&E is it pipework at cylinder or pics of the actual FE tank.?


NEW PICS ADDED


Al

 

[kevplumb]

flow connection to cylinder looks iffy

 

[gassafeman]

Turn the pump down to speed 1 (albeit a temp. measure).

Balance the system (see FAQ), and try it for a week.

Without seeing the c/f & o/v it may be sucking air in.

Paul.

 

[Al-Glasgow]

Ok then, hopefully reducing pump speed will still heat the house in this cold weather.

Al

any other suggestions

 

[tonybhoy]

That draw off looks dodgy mate. I would have teed off at the wall, come off the cylinder with the horizontal run then into a tee for the expansion and the draw off.

Also you would normally run the feed into the back of the pump. Where is the feed going into the system?