G'day, mate. A specialized
electrical relay isntalled in the a/c circuit that can be activiated remotely will do the trick. A good
electrical contractor in your area should be able to get you set up. I'm always a little nervous having these kind of systems running when I'm not on the
boat. A/C units and fridge/freezers can have
cooling pumps that can quickly flood the boat, should say, a hose come off. All the best. Cheers.