Pumped all refrigerant down in the condensing unit and blocked off. Removed bad evaporator coil. Separated from primary pan and installed new evaporator coil with existing primary pan. Connected everything back together and placed system on a pressure test with nitrogen. No nitrogen leaked out, release nitrogen and then put system on vacuum for under 500 µm. Released refrigerant and turn system on. Check the pressures, temperature differential and system functionality. Also made adjustment to drain line. System is on and cooling properly at this time.