Hey guys,

I have a vrv system we have been asked to look at , its an
Daikin Rny8ky1, and two rxy8ky1. feeding 12 fxys63kv1 ducted indoor units. R22.

Half of the floor seems to not perform, Yesterday it was 25 deg, i put all the indoor units into cooling 18 deg.
Only the inverter compressor was running, No fault codes..
Seems like a comms issue but normally id expect a fault..
Dont think its short of Refrigerant, but there is no info on the units as towhat th pipe run lengths are..
I bloody hate vrv, so i dont really have much to do with it.
Any help would be cool

cheers