Vailent Turbomax plus - how to top up water pressure?

[Not_the_boiler_again!]

Hi all,

I have a Vailent turbomax plus boiler fitted. After some extensive redecorating, which invloved removing two radiators (one of which has now been refitted) the pressure obviously dropped.

My question is how do I fill up the hot water system to increase the pressure now the rad is re connected? The pressure reading is just below 1 bar. (0.8 to be exact)

Any help will be gratefully recieved.

 

[bobapcoed]

I'm not a CH fitter or plumber but if this is a combi there should be a filling valve. It usually has a braided pipe connected to it. Crack this open and the pressure should increase. Consult your hand book or web site to see what it should be, usually 1-1.5 bar.

 

[ChrisR]

It's built in on these, underneath to the right. Do a search on this site and you'll find more details, or look at Vaillant's site where you'll find the manuals.

 

[chrishutt]

As your manual will point out, the turbomax has an integral filling loop. It is operated by a small key that fits into a slot in the bottom of the boiler. The key is normally held in place by an O ring, but may be missing, in which case use a screwdriver. Make sure you close the valve when up to pressure (1.0 bar is normal).