Upon inspection found evaporator coil restricted. Replace evaporator coil. Brandon Arrived on site at 6am, checked in and was granted access to RTUs, begun installation of units coil, recovered all remaining refrigerant, met crane operator at 7am on site to move new coil to roof, signed invoices for atlas crane, begun installation of new coil, got everything fitted in and installed all hardware to secure the coil to unit, brazed all connections and nitrogen tested both circuits, vacuumed out both circuits to atmospheric pressure, charged up system, and turned on system, system was running incorrectly and we are quoting to return with a few hrs to diagnose and install new filters to system, current filters were caked on with dirt and debris, and are unusable, checked out with Brandon and security.