Installing a mini split yourself can save money but requires careful planning....
https://wiki-wire.win/index.php/What_Tools_Do_I_Really_Need_to_Install_a_DIY_Mini_Split%3F
Installing a mini split yourself can save money but requires careful planning. This article shows how to drill the correct 3-3.5 inch hole through your wall for the lines and explains choosing between 115V and 230V power options