I have a 16,500 BTU Flag ship I installed in my 32 sedan. It works fine. The compressor coils are warm when running but not hot. I think the manual says somthing about that i think. The circulation pump is a March but I do not know the size. (Order it with the A/C unit as a kit). The flow of water coming out of the A/C uint seems strong. It is no fire hose but it has some pressure it is not dribbling down the side of the boat.

Is the flow direction correct? The cooling water going in and out at the proper ends of the coil?

Call www.flagshipmarine.com tech support may be able to help.


http://www.flagshipmarin...om/do%27s-don%27ts.html

From Flagships web page......

Under normal operating conditions, the condenser (the copper tube within a tube on the unit) should be warm to the touch - if you cannot feel any heat in the condenser whatsoever when the compressor is running, you have too much cold water passing through it. This is only a problem in some areas where the water temperature is 40°F and the air temperature is 90°F! This can be remedied by installing a gate valve on the supply line at the unit to throttle down the water flow. Remember to never restrict the SUCTION side of a centrifugal pump, conversely there is no harm restricting the DISCHARGE side of a centrifugal pump.

If the condenser is too hot to hold your hand on constantly, you are not getting enough cooling water. This is not a very scientific way of determining water flow but it works. Most of our units have manually resettable high pressure switches on the condenser, whereby if the unit is operated without enough cooling water and the refrigerant pressure on the high side reaches the limit, the switch will activate, shutting down the compressor until it is manually reset by pushing in the button.

I can scan my manual if I remember to pick it up next time I am at the Boat..

Robert

Thanks, Doug. I'll consider air flow also. There seems to be plenty coming out the vents. There is a return air vent cut into the cabin wall, with a filter but the symptom stays the same with the hatch cover in the floor, right at the unit, open. I was told today that our surface temp here is almost 90*. Bet that has a lot to do with it as air temp is upper 90's also....emailed Fastlane today also.