Saunier Duval, Ajusting system pressure

[paddyboy]

Hi i have a Saunier Duval F24E plus combination boiler and would like to
know how to fill the system pressure back up to 1 bar as it is currently
0.7bar.
Have checked for leaks,and there arent any that i can find.

 

[kevplumb]

look here

 

[Agile]

I think that one may have a built in filling arrangement.

But its the one make of boiler which is so bad that I dont repair them.

Tony

 

[paddyboy]

Thanks for your replys,Can't seem to see a filling loop. Have instructions but they are very vague. Says i should open all three isolating valves then open a tap on the filling device? No tap on filling device looks like you need to screw something onto it? Any ideas??