I have a dual Liebert Mini-Mate 2 2 ton setup in a 25'x25' room with 18' ceilings and the units alternately operating on 7 day cycles. It is an art storage room that is fully encased in concrete/cinder block with epoxy wall and floor coating. The set points are 70deg w/1deg diff and 50% hum w/1% diff due to the critical nature of the room contents. We have had a consistent issue with temperature and humidity fluctuations and the units taking a long time (8+ hours) to balance out. The room gets very little traffic and at the moment no fresh air intake. The room will be balanced and holding at the set points for a few hours then all of the sudden at random the temperature will drop 3 to 4 degrees. The heater will then kick in and the humidity spikes thus activating the dehumidification. This will cycle up and down for hours on end before eventually balancing out and holding for a couple of hours. We have tried adjusting set points, fan speeds, calibrating sensors, absolute and RH modes all to no avail. I am beginning to think the room is haunted. Any thoughts? Thank you.