[jcclark2823]

I am trying to do the exact same thing. I have a 25 ft Catalina in houston, tx. It's hot as **** here and I've put a Haier window unit between the aft berth and the cockpit locker of the boat. There is a wall there that worked quite nicely as a pseudo window opening once I cut the hole in it. However, I don't think I have the locker ventilated enough. The ac compressor comes on just long enough to barely start getting the aft part of the cabin cool, then the compressor turns off and only the fan blows. The compressor comes back on about 10 mins later with same results- off agani before it can cool the cabin down. I opened the locker while it was running and the locker is pretty large and hatch is big. You can feel all the hot air coming up from the locker hatch. I'm wondering if I should put a fan down there to try to keep it cooler. I don't think putting more holes for ventilation would help any- the hatch is pretty big. Only thing I could think of ws putting a vent down low in the cockpit so that air might circulate better. If you know what a catalina 25 cockpit locker is like, you know what I'm talking about. Only other thing I can think of is that the window unit blows the cold air into a rather confined space, which then should flow out to the rest of the cabin. I'm wondering if the thermostat is getting too cold and shuting the compressor off before the rest of the cabin can cool down. Does anyone know how hot the compressor can get before it shuts down with the safety switch? I have the thermostat set to maximum cool and it's just not working! Any advise or thoughts would be appreciated.

Thanks,
Jon in Houston