I was wondering if someone could help, apologies if this is a dumb question but I’m an electrician not a plumber.
I’ve just completed the renovation of my and part of that job was a full new sealed hot water and central heating system.
The property is as follows, 3 story (about 2.7 meter ceiling height), 7 radiators on the top deck, 6 rads on the middle deck and 1 on the ground floor. The system is a sealed system using a Baxi Megaflow HE28 boiler feeding and Ariston primo 300L tank, unfortunately the plumber who fitted the system has now disappeared off the face of the earth (this maybe something to do with all the leaks he left that I have had to repair).
The system is set up as follows (as far as I can tell) the boiler is on the middle floor and pumps water to the top floor where the cylinder is housed; from there the radiators are then fed.
The problem I have is the 1 lonely little radiator on the ground is clap cold, the rest of the system seems to be operating OK (bar needing a bit of balancing), from the photos I have before the new floor went down and what I can see of the pipe runs I would say that this is the furthest radiator away from the boiler.
Here is what I have tried so far.
Closed all other radiators set the thermo to full and tuned on the system, rad still cold
With all other rads off open the bleed valve on the rad, the inlet pipes starts to get warm as too does the bottom of the rad but as soon as the bleed valve is closed it goes cold again
With all other rads off open the drain off valve on the locksheild valve on the rad, the return pipes starts to get warm as too does the rad but as soon as the drain off valve is closed it goes cold again
I thought that possible the pump wasn’t man enough for the job, but I’ve run it through the Grundfos sizing tool and it says it’s fine
Any ideas?????
Thanks in Advance
I’ve just completed the renovation of my and part of that job was a full new sealed hot water and central heating system.
The property is as follows, 3 story (about 2.7 meter ceiling height), 7 radiators on the top deck, 6 rads on the middle deck and 1 on the ground floor. The system is a sealed system using a Baxi Megaflow HE28 boiler feeding and Ariston primo 300L tank, unfortunately the plumber who fitted the system has now disappeared off the face of the earth (this maybe something to do with all the leaks he left that I have had to repair).
The system is set up as follows (as far as I can tell) the boiler is on the middle floor and pumps water to the top floor where the cylinder is housed; from there the radiators are then fed.
The problem I have is the 1 lonely little radiator on the ground is clap cold, the rest of the system seems to be operating OK (bar needing a bit of balancing), from the photos I have before the new floor went down and what I can see of the pipe runs I would say that this is the furthest radiator away from the boiler.
Here is what I have tried so far.
Closed all other radiators set the thermo to full and tuned on the system, rad still cold
With all other rads off open the bleed valve on the rad, the inlet pipes starts to get warm as too does the bottom of the rad but as soon as the bleed valve is closed it goes cold again
With all other rads off open the drain off valve on the locksheild valve on the rad, the return pipes starts to get warm as too does the rad but as soon as the drain off valve is closed it goes cold again
I thought that possible the pump wasn’t man enough for the job, but I’ve run it through the Grundfos sizing tool and it says it’s fine
Any ideas?????
Thanks in Advance
