York YT Refrigerant Level Control Problems

[MrCarrier]

We have a York YTK7C8F1-CSJ machine that we can't seem to stablize the condenser refrigerant level. With a setpoint of 50%, it hunts +/- 25%, no matter how we set up the valve control settings. This chiller operates under near stable load conditions (data center). What is a normal fluctuation for the level? Is +/- 5% a realistic goal? We have calibrated the level sensor per York's service bulletin. Any more info needed, let me know.

Thanks in advance.

[KnewYork]

Unfortunately the forum you posted in is an open forum and I, for one, will not get into specific troubleshooting procedures or post service related literature in this forum. +/ 5% is not an unrealistic band around a 50% level setpoint.

If you choose to hang around, get your post count up and apply for pro membership we go into detail in the pro forums.

[MrCarrier]

Will do, thanks KnewYork.