Complete: 1System Amana Split HP: HO said unit just didn’t seem to be keeping up. 1. He had the Nest learning features on the Tstat. So I removed all that. 2. His SH and SC was 14 and 7 but only a 14° drop. Adjusted txv and added 8oz of 410 and gained a 8° SH and 8° SC with a 19° drop. Tstat satisfied at 67°. Explained all my findings to mr Godwin and system is working great at this time.