Complete. 1 system. Did not install TXV. system does not have a TXV inside indoor unit (Pic in docs) I re-diagnosed the system. System not cooling due to restricted piston and, having 2 filter driers on the liquid line further restricting refrigerant flow. I removed indoor filter drier, blew lines clear and, cleaned piston. System operating properly at this time with a 20 degrees temperature drop inside from return to supply register.