I see that your cold feed connects to a tee at the return emerging from the cylinder, and the vent connects to a tee at the flow that goes into the cylinder. If the pump is before the vent then this is a significant factor in the pumping over.
Softus I think from what i can make out, the pump is on the return, so the cold feed and vent are behind the pump, just with a cylinder in between them!
Sound's like a pumped conversion from an existing solid fuel/gravity set up to me.
Does the flow into the cylinder go into the top connection, or bottom. Which pipe get's hot first?
Firstly i would put pump on setting 1 as long as it is circulating all rad's it will be fine for a short term fix. Does this fix the pumping over?
Sam
Softus I think from what i can make out, the pump is on the return, so the cold feed and vent are behind the pump, just with a cylinder in between them!
Sound's like a pumped conversion from an existing solid fuel/gravity set up to me.
Does the flow into the cylinder go into the top connection, or bottom. Which pipe get's hot first?
Firstly i would put pump on setting 1 as long as it is circulating all rad's it will be fine for a short term fix. Does this fix the pumping over?
Sam