Arrived on site for QC visit on 3 mini splits and one conventional. System is level all wiring is good no error codes. Getting over 20 degree temp split. Drain line is draining at this time. System is clean and operating as designed. Outside unit is level all electrical components are good and tight. All components are operating as designed. Pressures were within manufacturer specifications. Tested normal heating operation. Had some issues with the pipe sizing programming on the building with 2 head mini split . Reprogrammed unit while holding ODT sensor was successful and units began to run without issue.
