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  #41  
Old 07-17-2008
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I found online a Coleman SEA-MACH 13,500 btu unit on sale for $899.00

Marine Air Conditioners from Coleman on Sale
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So, it would appear that the Aqua-Therm has no source of replacement parts. That is unfortunate since the unit operates well, it just has a leak that I will attempt to repair. thanks for the help, I know it is an old device.
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Old 07-18-2008
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I have a Curiseair 5,000BTU in the master cabin and 11,000BTU and have been having trouble with the larger condenser icing over after running overnight. Here in Singapore we're 1.5 degrees north of the equator and AC is a necessity when the monsoon doesn't blow...then it's OK on the water with 12V fans only.

For the icing problem, could it be that the unit is low on freon? The air intake is a bit small...could that be the problem?
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  #44  
Old 07-18-2008
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Both of those could cause the problem of the unit icing up. I would recommend you enlarge the air intake and have an A/C tech check the refrigerant level and top it off if necessary.
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I agree with the above

Low air flow and /or high humidity will cause them to ice up. If the unit is set too low so it keeps running without shutting off and the humidity is high it will turn into a brick of ice. I am always reminding my guys to leave the doors closed on the boats while they work. Also the low air flow will allow the cooling coils to run cooler than normal and the condensation will freeze on the surface. The minimum intake should equal the surface area of the condenser, larger intake area is better.
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