Replaced leaking A coil. Pressure tested to 500 psi for 20 minutes. Found no leaks. Vacuumed for 30 minutes down 250 microns. Performed pressure rise test. Held at 260 microns. Found no leaks. Weighed in factory charge and added extra for line set length. SC 13. SH 14. Temp drop 20 degrees. Confirmed operation.