Hottest days in summer does the units cycle or run almost constantly? By checking the temperature drop across the furnace/ air handler the higher the drop the more RH is being pulled out. Can't go over 24° like to stay in the range of 22°. By dropping blower speed by one speed and give it 30 minutes of run time before checking it.
I have two three ton units. Load calcs call for one three ton (actually a tad less). The adjustments that have made should get it to stop short cycling and run longer.
