Trane Voyager 20 Ton, (2) 10 Ton Scroll's, 400 PSI head, cleaned cond. coils and started system back up. 1st stage comp runs 65/245 (Dry Coil) second stage starts and runs 58 Suction and the head hunts from 240 to 330 and back all with in about 3 Min. Sub cooling is 16 to 20 Deg. suction does not follow the head pressure. Non condensable’s?