Air in cental heating system


Postby johnwilkinson » Fri Dec 14, 2007 12:40 pm

Hi,
I am having some building work done, and in the process, I wanted to change my microbore system to a 15mm system. This has to be done in two stages. The first is to add 4 new rediators, on 15mm system, in a new extension to the house. Then, when we have moved all our clutter, replace the remaining 6 rads.

The heating engineer moved my boiler into the loft, and converted it to a sealed system. All went OK, and while we were all microbore, no problems.

Since we have had the new rads on the system, there seems to be a large amount of air when the valve turns to hot water.

The engineer fixed this the other day, and last night, I decided to go look at the pressure... it was 0. So I opened the fill valves, but could only raise the pressure to 1 Bar max, even if I opened the valves fully.

Ok, so 1 Bar is workable, but then outside the vent pipe was dripping water, and yet the meter still shows 1 Bar.

Then the hot water started to heat up, and air was back in the system again.

Does anyone have any ideas.
Surely if there was a leak in the new system, we should have seen a lot of water by now?

I am so worried that the new floors will be laid, and that there is a fault beneath the boards.

Best regards,
John :?
johnwilkinson
Rank: Labourer
Progress to next rank:
25%
Posts: 2
Joined: Fri Dec 14, 2007 12:28 pm

Sponsor

Simply Build It


  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!



 


  • Related Topics