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Replace TXV that is covered under warranty. While replacing TXV please install ballast and sockets on Pure Air Kit 5/18/22. Installed new txv valve by pulling refrigerant charge back into outdoor unit. Replaced txv valve. Pressure tested and leak checked with 320 psi nitrogen. Vacuumed down system to 380 microns. Opened king valves and tested outdoor a/c system. Pressures were 228/115 subcooling was 7. Also replaced ballast and sockets for Lennox pure air kit , tested operation. A/c system is working fine at time of service.