I've been asked to commission some Hitachi gear just been installed but building company have gone bust.

Basically just need some details i.e charge weight, refrigerant, additional g/m etc.

I've tried the Hitachi website but its not so good for the sort of info I'm after.

The only details I have;

2No. RAC-3.5HYA
1No. RAC-2.5HYA
1No. RAS-2.5HG7E

I know these are all outdoor units and that the indoors are all 600x600 cassettes.

Thanks in advanced.