Pumped down refrigerant to the condenser unit. Removed evaporator coil from air handler unit. Transfer new txv and clean and rinsed drain pan. Installed new filter dryer on liquid line on outside condenser unit . Install new warranty evaporator coil and plumb drain line fittings. Weld copper in Place and nitrogen test for leaks in the unit. No leaks on the weld repair. Evacuate the system with vacuum pump to 500 microns and added 4lb 410a refrigerant to the condenser unit. Checked thermostat calibration and filter. Cleaned vacuumed the drain pan and drain line. Flushed drain line with water and primed drain line. Cleaned and rinsed condenser coil and compressor deck. Start up system in cooling and checked refrigerant levels and check test start up components. Recommend New safety surge protector on condenser unit. New membership folder was given. Unit is cooling well and drains properly. Thank you