Bleeding underloor heating loops

[rogermunns]

Commissioning my UFH is driving me nuts!

After a lot of learning I have got the Ground Source HeatPump to work but I can only get one of my seven loops to take flow.

I assume that I have too many airlocks and that I have to purge through each loop one-at-a-time. But I have tried that, although rather half-heartedly I'll admit. Mains pressure and a hose is all very well but then I do not have any inhibitor / antifreeze in the loops.

Any ideas, please?

 

[BenC]

can you not bleed it from the manifold?

 

[rogermunns]

Ben; this is how I tried, but since then I've had odd leaks and had to part-drain before fixing the leaks.

 

[Jonzo25]

Unfortunatly painstaking as it is thats the way it has to be done I've spent 30-40 minutes getting all the air out of one loop. Its a pain in the bum!!