On arrival system running and cooling as intended. Indoor unit produced 23 degree delta t. Drain lines flowed when flushed. Current filter allowing dust to bypass. Recommended electrostatic filter to address this for this system and the next. Supply plenum had significant biological growth. Recommended indoor air quality system that kills mold, mildew, viruses, and bacteria in airflow. Outdoor unit in good condition, capicator is out of tolerance and the compressor is overamping on start up. Customer would like to follow up at the end of the month and address air quality issues.