Arrived on site. Performed all necessary work to replace TXV. Removed older TXV and brazed in new one while running nitrogen. Pressure tested with nitrogen and micro bubbles. System held test for 15 minutes. Pulled vacuum to nearly 500 microns. Recharged with 10 pounds of R-410 refrigerant. Tested operation and confirmed unit is currently working as designed with no more leaks. All work is complete.