Here to replace installed Evaporator coil for 2nd floor system. 2nd floor system had a leak in evaporator coil. Unit was completely flat. Pulled vacuum on remaining gas to Unsweat brazing joint to disconnect line set from old existing evaporator coil. Disconnected drain, remove line set. Needed to re-hung hanging material to support new coil and reposition drain pan. Disconnected return flexible ductwork to remove coil. Installed new coil, brazed in line set and level unit and reconnected drain line and return ductwork. Pressurized unit with dry nitrogen to 350psi and let sit for 30 minutes to a hour. System pressures held, no leak. Dump dry nitrogen and a pulled vacuum on system for 30minutes to a hour. Added 7lbs of R410A refrigerant charge to adjust system pressure and temperature. Ran and test system operation. View visual findings from this job here - https://visionshare.xoi.io/?id=XA-90AE-99B16F2771B74540B06B30D2FE173CBC