My Install - some questions!

[JohnMo]

6 minutes ago, Duncan62 said:

 

Thinking about it, should the Freezer valves be sited at the lowest point before the heat pump, or will anywhere outside do it?

Low points - outside, if that at the heat pump, that's where they go.

[Nickfromwales]

5 hours ago, Duncan62 said:

 

Thinking about it, should the Freezer valves be sited at the lowest point before the heat pump, or will anywhere outside do it?

Here’s the last one I installed. 
 

 

Lagging was finished after leak testing. 

[Duncan62]

Thank you so much.

I've got outdoor lagging and will do as you do!

[JohnMo]

This is what it looks like lagged 

[Duncan62]

Thank you all, uninsulated until I get it up and running in case of any leaks, but system installed and closed loop. 

 

Next challenge is flushing the UFH loops (only 3x100m) and filling the system from the now connected fill hose under the expansion vessel.

 

Also need to add the biocide and anti-corrosion. Wish me luck.

[Nickfromwales]

27 minutes ago, Duncan62 said:

Thank you all, uninsulated until I get it up and running in case of any leaks, but system installed and closed loop. 

 

Next challenge is flushing the UFH loops (only 3x100m) and filling the system from the now connected fill hose under the expansion vessel.

 

Also need to add the biocide and anti-corrosion. Wish me luck.

 

 

Have you checked if there's an automatic air vent inside the heatpump that needs opening? Some come open, but I've found some which are loose but not 'open'.

 

Also, any reason why you have an inline trap after the P of the washing machine trap? No need for the inline (waterless) one afaic.

[Duncan62]

5 hours ago, Nickfromwales said:

 

 

Have you checked if there's an automatic air vent inside the heatpump that needs opening? Some come open, but I've found some which are loose but not 'open'.

 

Also, any reason why you have an inline trap after the P of the washing machine trap? No need for the inline (waterless) one afaic.

I'll check the heat pump thank you.

 

Airless trap because I had already bought it but for airtightness test it's useless for the pressurisation test as it blows straight open, so added a u bend too.

[Duncan62]

So, filled with water. Lots of leaks....

Which was unexpected. Going round tightening everything again.

[JohnMo]

2 minutes ago, Duncan62 said:

So, filled with water. Lots of leaks....

Which was unexpected. Going round tightening everything again.

Don't overtighten fitting with olives.

[Duncan62]

31 minutes ago, JohnMo said:

Don't overtighten fitting with olives.

 

I think this may be my issue, I knew not to offer tighten, so maybe didn't do it enough. 

 

I only have normal spanners so don't think I could have overtightened as wasn't forcing anything...

 

I'll open one up and look at the pipe, hopefully it doesn't look like a fat finger on a ring!

 

Been advised to add some paste to the olives before tightening to help with the leaks.