Interesting tidbit of info...
About 12 years ago, Delonghi was bringing in a "portable" split unit.
I tried to find one a while back and it seems they were never legal to sell here, the connecting and disconnecting of the connectors is still regarded as refrigeration work and needlessly regulated heavily. Self install is fine in the USA where they even have ones that need charging sold for self installation.
I wasn't aware of that aspect of it, but, not having a proper isolation switch from an electrical standpoint was an issue.