I can't remember if it was someone on BYC or elsewhere that showed this to me -
https://www.storeitcold.com/product/coolbot-walk-in-cooler-controller/
It basically helps the window A/C unit regulate properly to work as a walk-in-cooler unit. I really need a cooler to keep stockpiled animal feed and extra eggs. I'm going to add it into a section of my barn but first I need to get an electrician out to add a dedicated circuit for it. My electrical box in the barn is pretty small and I'm not sure if it can handle the load/circuit or not.
Yet ANOTHER thing on my to-do list that really needs to get done ASAP. I really want to build a root cellar too but that will be more difficult than a walk-in cooler because I live on the side of a foothill with bedrock literally 2 ft below the surface.