US1 Fountain

iTrader: (1)

In stalled shorepower for an outlet, power for the AC and a 30A 3 bank charger.

My cruiser equiped go-fast.

Dkahnjob

That was 20+ years ago, It was an R-12 system, that was the standard at the time for automotive A/C. The evaporater was the biggest that I could get from Vintage V8 air conditioning, I think it was about 2 tons. The Condenser was an off the shelf part from an A/C wholesale house, 3 ton tube in tube, circular about18" in diameter and about 12" high. I put a couple of annodes in with Tees at the water connections. The system worked very well, the only downside was you had to keep one engine running to run the compressor.

jtbooten

iTrader: (1)

I know this is an old thread but I have an AC that I'm getting ready to put in my 32. Do you have pics of the water pick up, in and outside of boat? Do you think putting a "T" and a valve on a raw water line would be a good idea? I really don't want to drill a hole in my boat if there is some alternatives.

US1 Fountain

iTrader: (1)

You could tie into your motors supply hose. A strainer would be the bomb, serve a double purpose and make the connection easy. But you would have to remember to open and close valves at each use. Cant just install a tee. You'd be sucking air thru the AC unit when running the motors. I installed my AC pickup thru hull on the side since I designed my system to run off lake water while the boat was on the lift, so the side install made it easier to access and attach my drop down hose. Took a few beers to drill that hole! I made both of the thru hulls so I could screw in the brass barbs for the drop down hoses when AC is being used. For the discharge, I used the cooler drain location as I eliminated the cooler. There is a valve screwed directly to the inlet thru hull soI could close it off if needed in an emergency.


I only check in here on OSO every couple of weeks anymore as I'm boatless now, so any follow up questions might take awhile to respond.

jtbooten

iTrader: (1)

Very good looking, clean install! I thought about putting mine under the ice chest but my friend has his under the bed so I may go that route. If I do the thru-hull pick-up, I'll get someone else to do it. Not brave enough. If I were to "T" into my raw water, I would put a valve on the AC side. My only worry was my pump is gravity fed. All the raw water line is below the water line but the path it takes concerns me(bottom of the drive, top of the gimbal, back down to the raw water pump). Wasn't sure if the natural flow would keep up. I was wanting to install it before the Lake Cumberland Poker Run but to take my time and do it right, I'll wait until the winter time. Nights should be cool enough by then.

US1 Fountain

iTrader: (1)

You maybe ok since the water lines will be primed just from the motor and it's under water while at rest. Even the cheap AC pumps will pull water no problem once it's primed. My buddy's pulled water up 4' w/o issue. They wont self prime though. You just have to make sure the AC won't want to also pull the water from the motor until it sucks air thru the exhaust at which point AC will shut down. May need 2 valves to be trouble free. 1 for motor, 1 for AC

jtbooten

iTrader: (1)

I’m working on my AC install over the winter. My install will be a lot like yours so thanks a lot for the pics on this thread. The more I think about the “T” into my raw water, the less I think. I could see myself forgetting to turn my valves the correct way and ruining an impeller. So I’m back to the thru hull fitting I’m dreading to drill. I may be overthinking this but the typical water “dumps” for the sink and bilge pumps on our boats are designed to be above the water line only? All the water “pick ups” have multiple bolt/screw holes I’m assuming for a water tight seal.

When you used a water dump for the pick up, did you have any problems with having a water tight seal? On our 32s, there isn’t a reachable spot for water pick with a shut off valve on the transom. That’s why I want to use a dump for a pick up on the side. I defiantly will have a shut off valve.

I like these a lot because they are threaded and black will blend in with my wrap.

https://www.connollymarine.com/3_4_A.../conn-1006.htm

US1 Fountain

iTrader: (1)

Actually those pickups with the screws are strainers and are more robust than the simple thru hull like I used, plus they scoop up the water while running, a good idea if you are running a gen. I didn't have any plans of walking around in the engine compartment chancing tripping over the pickup and breaking it off, A standard thru hull will be just fine for your application. Yes, the sink, cooler, and bilge drains are too high for a discharge, plus you do not want to tie anything into a bilge discharge. Luckily the way the 32's sit, hitting below the waterline isn't a issue when located in teh engine compartment. In case the pic of mine wasn't clear, the AC discharge is located beneath the port bilge discharge, just aft of the water tank and approx even with top of the outter stringer. No worries of leaks. Seal it good! After I drilled the hole, I used a T-Slot cutter in my hand drill and cut out balsa coring inside the hole and filled it with epoxy thickened with filler. That made the drilled hole water proof and the hull solid so it wouldn't compress when I tightened the thru hull. I used 4200 to seal. Technically, a standard ball valve shouldn't be screwed directly on to the normal thru hull fitting. The ball valve is NPT, the thru hull is NPS. (But its done every day) They do make thru hulls that have combination threads just for this reason. The very end is NPT, then the threads become straight threads for the nut. You want to locate the pickup far enough below the water surface so that you dont suck crap off the surface of the water and plug your strainer.

jtbooten

iTrader: (1)

Thanks again US1. I didn’t think about the threads for the valve so I’ll make sure to get the correct one. I’ll also drill my hole the same way. I’m OCD so I like doing things correct. I put a T in my sink drain for my AC discharge. I like your location for the inlet so that’s the route I’ll go. I’m moving slow with it due to holidays and other home projects but it will be done before spring. I have all my shore power parts. Just need a few small odds and ends for the AC. Funny thing about this project, it probably won’t be used much but it will be nice when I do!

ALL_IN!

iTrader: (1)

But it sure is nice when you're back at the dock, mixing drinks in the cabin with the AC on - when it's like 98* in the shade! lol