Came out today for QC visit on new install. Started inside at t-stat (Trane) turned system down to check over unit. 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. Added 1 lb of 454b. Pressures were within manufacturer specifications. Found supply temps a bit high which prompted further investigation. Upon closer inspection I found the liquid line slightly kinked. Assured homeowner that we would be out this evening to address the issue and get it taken care of. Also performed maintenance on both other units. 1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested compressor/ condenser fan motor capacitor. 6. Checked compressor amp draw. 7. Ch