hi, i looked at a twin vented cylinder fully pumped setup yesterday which has had some problems which need rectifying. Its uses a Y plan setup.
First of all, is that when just 'hotwater' is on, the heating starts to warm up. So im fairly sure this just needs a swept tee where the heating joins the return back to the boiler.
The other problem is that it has a 3 port mid-postion valve which then just tee's off to each cylinder. Now the problem being is that the cylinder stat is only on one cylinder, And its the cylinder with the longer pipe run (flow) to it. So it seems the other cylinder is warming up alot quicker and therefore boiling up. So im thinking i could either, transfer the cylinder stat onto the 'prefered' cylinder. Or i could fit valves to each cylinder return and attempt to balance the flow through each. Or could get rid of the 3 port valve, And fit 3x 2port valves, one to the heating, and one to each cylinder, each being controlled by seperate cylinder stat's.
Advice most welcome.
Thanks, Jim
First of all, is that when just 'hotwater' is on, the heating starts to warm up. So im fairly sure this just needs a swept tee where the heating joins the return back to the boiler.
The other problem is that it has a 3 port mid-postion valve which then just tee's off to each cylinder. Now the problem being is that the cylinder stat is only on one cylinder, And its the cylinder with the longer pipe run (flow) to it. So it seems the other cylinder is warming up alot quicker and therefore boiling up. So im thinking i could either, transfer the cylinder stat onto the 'prefered' cylinder. Or i could fit valves to each cylinder return and attempt to balance the flow through each. Or could get rid of the 3 port valve, And fit 3x 2port valves, one to the heating, and one to each cylinder, each being controlled by seperate cylinder stat's.
Advice most welcome.
Thanks, Jim