Air Conditioner

Glenn13

New Member
Jul 5, 2019
3
Boat Info
1998 SeaRay Sundancer 27O
Engines
454 Mercruiser with Bravo III drive
I am brand new to power boating and just bought a 1998 SeaRay Sundancer 27O. When I turn on the air conditioner I see water flowing from a starboard side port. Is this normal? I don't want to burn anything out. Is this water coming from the onboard water system? Sorry for my ignorance.
 
You are good. The system uses raw water to cool the unit while in use.

But on a side note please get to know your boat from tip to tail .... it will make your boating experience much better.

Glenn where are you located?

If needed I bet someone close to you can give you a good walk down of your boat.
 
Agree with Ducky. Trace your AC water line back to the intake. Know where the valve shut off is. Know where the pump is. Know where the strainer is. So you can address as needed.

Do the same with the other systems. Good luck.
 
The time to be concerned is when you don't see a good flow of raw-water from the thru-hull.

Your A/C system has no fan to run air through and remove heat. So the system uses raw-water from a thru-hull in the bildge to a seacock, up to a strainer, to a pump, which circulates the water through the system and out the side of the boat.
 
So silly question maybe. I have a Sea Ray 390 Express Cruiser. On my side there looks to be two discharges for the AC. One is flowing nicely the other a trickle. Should both be flowing?
 
So silly question maybe. I have a Sea Ray 390 Express Cruiser. On my side there looks to be two discharges for the AC. One is flowing nicely the other a trickle. Should both be flowing?
That size boat you might have two AC units. If they are both on, you should have good flow. Otherwise, you have a problem.
 
So silly question maybe. I have a Sea Ray 390 Express Cruiser. On my side there looks to be two discharges for the AC. One is flowing nicely the other a trickle. Should both be flowing?
Yes, both should be flowing at the same time. You have 2 independent AC units that share a single sea water pump. When one AC units starts (the compressor) it signals the water pump.

A trickle sounds like a restriction in one of the lines. I'd check for an obvious hose pinch first.
 

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