Complete: 1System: Carrier 2 zone Split HP: Came to replace txv. Removed refrigerant bc system couldn’t pump down. Removed 2 filter dryers from outside and brazed 1 new one back in. Then removed old txv. Blew system out with nitrogen and then installed new txv. Nitrogen pressure tested. Pulled Vacuum to 600 microns and it held. Charged with 9lbs of 410. System called for an 8 degree SC. And I was at 9. Delta T was 79 and 61. Spoke with HO for awhile had her laughing. All is good and system is working great at this time.