Removed the refrigerant from the system and then removed the old line set. Installed the new line set and pressure tested with dry nitrogen. Checked for leaks on the line set connections and found none. Pulled a vacuum on the system and weighed in factory charge with new refrigerant. Checked the operation of the system in heating and cooling. Checked that the drain is draining properly. Washed the outside of the condenser and washed out the condensing coil. Reinstalled the line hide to protect the line set. The system is working properly at this time.