Re-pressurise the Scottish gas 532/i Boiler

[yashyashm]

Hi All

I bought a house and it is having Boiler 532/i by Scottish gas. The water pressure indicator is just about the red mark. I presume this is for central heating.

can anyone please let me know how to increase this level and where should i search for this control. there is a control for central heating to maintain the house temperature as well.

Please let me know in case you want me post some pics.

Regards
yash

 

[yashyashm]

This is basically re-pressurise the boiler.