Correct. There is an air conditioning disconnect switch to the left in that picture on the adjacent exterior wall. It is a typical 60A non-fused disconnect switch. WRT the circuit breaker, they specify a 25A circuit for the 24K unit. Finding one of those at the box stores is like trying to...
I agree that usually you can get then out pretty easily using this method. However, I tried for about an hour with no luck. In fact I found myself starting to bend one of the leads inside the connector so that is when I decided to stop.
Oh, and I'm not a bot. Not that you're calling ME one. I just registered on this site to give you some of the feedback those on this thread were asking about.
I just installed the MrCool 24K DIY unit in my garage about 2 weeks ago. While I was doing my research in this system I saw that there was little feedback from those who have pulled the trigger. I bought mine from Ingram's and posted a review there. But, I will save you the hassle of looking...