Replaced the outdoor TXV on heat pump unit model:ASZ160481LB serial:1710387837. Pressure tested at 350psi for 20 minutes, bubble checking all 3 joints for the TXV. Pulled a vacuum down to 350 microns. Recharged unit with refrigerant and ran unit for 15 minutes where the pressures settled out at 130psi and 423psi. Thank you for your business.