Boiler Cold Fill

[Shivers]

According to the installation manual for my newly installed Vaillant ecoTEC 428 plus, the cold fill should be connected from the underside of the flow pipe; mine is connected to the top (as in this diagram).

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• Shivers
• 12 Mar 2009
• 1

What problems will this cause (if any)? Should I get my plumber to fix it?

Thanks

 

[John506]

Probably won't make any difference what so ever.

 

[Hugh Jaleak]

Cold feed looping round underneath was common practice some time ago I think, cut a few out as they became blocked with crud over time. Usually found out after draining system to work on it, then couldnt get it to refill. Probably thousands of systems installed as yours has been, mine included. As John has said, wont make any difference.

 

[Shivers]

Thanks. The robot tech I spoke to at Vaillant said that the boiler would shut down, overpump snd suffer from air locks unless it was plumbed EXACTLY as per the manual. I thought that he was probably just CYA

 

[namsag]

Ignore him he is talking SH#TE the thought behind looping the cold feed from underrneath was to stop it blocking but in real life it is no different from teeing in at top