Installed new condenser unit, evaporator coil and filter dryer. Installed new pad and pump ups, installed new disconnect box. After finishing brazing, held nitrogen charge at 150psi(nitrogen tank ran low on gas), released nitrogen to pull vacuum for 15+ min. After detecting no leaks and vacuum held, we cracked valves and let system run 10+ min to evaluate subcool. System is running at proper charge and is cooling home efficiently. Had to cut exhaust and fresh air 2 inch pvc pipe to 90% furnace to remove evap coil, reconnected pvc pipe with two 2 inch couplings. System is in great condition and customer is happy.