Hello,
I am looking for some advice - not a lecture.
My central heating and hot water system was changed a couple of years ago when I needed a new boiler.
Previously, the system was pumped CH and gravity HW.
The plumber that installed the new conventional condensing boiler gave me a fully pumped S plan system.
It has never worked properly since although we could live with it.
Recently, I managed to find out what part of the electrics he has not done properly and fixed that so the programmed worked properly, and now I am left with a fairly simple problem I believe.
The HW tank is in the loft with the header, expansion and cold water tanks.
The problem is that when the HW is programmed ON, hot water goes up the expansion pipe and into the expansion tank ad so I get a HOT expansion tank. The expansion pipe is situated on the input to the HW coil of the tank. This was where it was when it was a gravty fed HW system. But now it is a pumped HW system, the hot water is just pumped out into the expansion tamk.
I need to move the HW expansion pipe so that it is not in front of the pump but behind it but am not sure of the most effective place to take the expansion feed from.
Any ideas would be gratefully received.
Andy
I am looking for some advice - not a lecture.
My central heating and hot water system was changed a couple of years ago when I needed a new boiler.
Previously, the system was pumped CH and gravity HW.
The plumber that installed the new conventional condensing boiler gave me a fully pumped S plan system.
It has never worked properly since although we could live with it.
Recently, I managed to find out what part of the electrics he has not done properly and fixed that so the programmed worked properly, and now I am left with a fairly simple problem I believe.
The HW tank is in the loft with the header, expansion and cold water tanks.
The problem is that when the HW is programmed ON, hot water goes up the expansion pipe and into the expansion tank ad so I get a HOT expansion tank. The expansion pipe is situated on the input to the HW coil of the tank. This was where it was when it was a gravty fed HW system. But now it is a pumped HW system, the hot water is just pumped out into the expansion tamk.
I need to move the HW expansion pipe so that it is not in front of the pump but behind it but am not sure of the most effective place to take the expansion feed from.
Any ideas would be gratefully received.
Andy