Getting your mini split system set up yourself is easier than you might think....

https://tango-wiki.win/index.php/How_Long_Does_a_Ceiling_Cassette_Mini_Split_Install_Take%3F

Getting your mini split system set up yourself is easier than you might think. With pre-charged R-454B quick-connect linesets, you skip the vacuum pump and avoid needing an EPA Section 608 license