I arrived for a humidity problem. This was a recommendation from his son that we installed a infinity system for him last work. I first spoke with the homeowner and found that the system in new and they are having a high humidity problem. I inspected the system and found the 5 ton system to have 4 ton duct on it. They just installed new windows and R30 insulation in the attic. This changes the heat load on the home and will change how the system runs and pulls humidity out. I suggested to fix the duct per the size of the system to help this issue.