Need Help With Position of Motorised Valve


Postby LisburnWhite » Fri Mar 15, 2019 7:27 pm

Hi, need help with the position of the motorised valve which will be connected to the cylinder stat. Boiler supplies heat for rads and hot water which is fine but want to stop the water from overheating hence the stat.
I can access the pipework at A and B but don't know which is the best side to fit it on or even if it makes any difference.
Any help much appreciated, thanks.

photostudio heating.jpg
LisburnWhite
Rank: Labourer
Progress to next rank:
0%
Posts: 1
Joined: Fri Mar 15, 2019 3:12 pm

Sponsor

Simply Build It

Postby ericmark » Fri Mar 29, 2019 11:13 pm

Clearly A the three port valve will default to domestic hot water, half way for both and all the way for central heating only.

If TRV's are fitted then also needs by-pass valve.

In theory with Y Plan the micro switches stop the boiler running without the valve being open, and since default is domestic hot water unlikely to be a problem. Using S plan however a faulty micro switch can burn out pump if by-pass valve in the wrong place.
ericmark
Rank: Project Manager
Posts: 2051
Joined: Fri Oct 02, 2009 8:49 pm
Location: Mold, North Wales.

Display posts from previous
Sort by
Order by



  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!



 


  • Related Topics