Yep, your installing an electrical and refridgerated device on their property. I would have to think the machine needs to be inspected, certified, etc to make sure it doesn’t burn the place to the ground or leak shit everywhere. I assume also the machine might need insurance, so it the place got broken into, robbed, or vandalized you cant turn around and sue the building owner for your machine getting damaged.
With any business, get a lawyer and pitch it to them, because what do we know!??!