had computer problems over the festive season! Grrr. sorry for not posting sooner
the twice a day occurence was happening when the heating was off! we would turn the hot water on and it wouldn't get hot - go in the garage and low and behold the pressure was nil... re-charge was then done.
Anyway since i turned the prv and it 'clicked' the pressure has stabilised and has not been charged since. when the CH is off it is at 0.5 bar and when it is on it goes to 2.0 bar, which i belive to be normal looking through the user manual which i've downloaded.
It has a programmer as per fig 15 on page 12 but no room thermostat - I intend to install one in the next couple of weeks. So at the moment it is either all guns blazing or off, lol
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