Investigated airflow issue. Homeowner stated previously that the master bedroom and master bathroom vents had stronger airflow. The system is zoned and currently operating properly. The system has a supply air sensor that will shut the outdoor compressor off when the coil temperature gets down to 41 degrees. Running just the 2nd floor zone will cause the outdoor unit to short cycle due to system trying to move 4 tons of airflow through a 10x14 trunk line. When both zones are set closer to the same temperature it will cool the house better overall. From a mechanical standpoint the system is operating properly at this time. I will check with the general manager to see if we’re able to provide a quote for air balancing as we are currently in the process of updating our software and equipment. York S#W1K6015752. Filter size 20x25x1. Aprilaire 600M-#35 panel fall.