Trojan Boat Forum

My ac seems to be cycling and i heard a pumping sound from underneath. I have the boat in dry storage. I filled up the fresh water tank and i hooked a hose up to the boat. However it doesnt seem to stay cold. I just bought this boat and have no clue about the AC system. Is there another switch i need to turn on so the water pump will run? If have a hose hooked up will this bypass this ? I would love to see an owners manual for the AC system so i could check everything. I have a 1979 F36 Convertible.

thanks,
Charlie

Marine ac is raw water cooled. You need to circulate water thru the condenser to transfer heat away from the boat. Once you're in the water you can check the charge when the water is going thru the unit.

So do the boat engines have to be running also for the ac to work ? Or is there an electric raw water pump ?

thanks.

no the engines have nothing to do with the ac. you will find a circulating pump that will circulate the water through the condensing unit. it will turn on when the ac thermostat calls for the unit to cycle on. since the boat is in dry storge you could look for the through hulls and one of them should connect to this hose for the ac in the boat somewhere. there will also be an outlet for the water to discharge out the side somewhere. i guess if you want to check the ac operation you might be able to connect a water hose to the inlet hose and force water through the condensor which would simulate the pumps operation you dont wantto apply to much water pressure. it would be easiest to wait till your in the water and let the system do its thing but whatever way raw water must pass through the unit

Charlie , Judging By the questions youve asked,it may be a good idea to have a professional check out your problem .and at least point you in the right direction, as these older units are so delicate and easy to break and very expensive to repair or replace I Know GOOD LUCK JACK

thanks for all the replies, i think i will just wait til she is in the water and see what happens.

thanks.