Installing a mini split yourself is easier than you think. With pre-charged...

https://sirachapete736.gumroad.com/p/do-i-need-a-vacuum-pump-for-a-pre-charged-mini-split

Installing a mini split yourself is easier than you think. With pre-charged R-454B quick-connect linesets, you won’t need a vacuum pump or an EPA Section 608 license. Many units plug into a standard 115V outlet, like the 9K and 12K models