What are the 5 most important things I need to know before installing my Della Mini Split AC?

Before installation, you should understand: (1) The installation location is critical, (2) Handle the refrigerant pipes perfectly, (3) Bundle the line set correctly, (4) Vacuum pump the refrigerant circuit properly, and (5) Ensure safe electrical connection. Most problems emerge from incorrect or poor installation, so professional HVAC installation is recommended and comes with extended warranty benefits. (Page 3)