Came to clients house to do quality control check of downstairs unit Found condensation water in secondary drain pan. Inspected the issue further and insulated the main drain line more to prevent water dripping off of pipe into pan and ceiling. Flushed drain line with water to insure the lines were not clogged. Drain lines were draining properly. Took temperature splits across the coil were 22 degrees. 55 degrees coming from supply and 77 degrees coming in to the unit Units were cooling upon departure.