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Old 16-02-2012, 20:14   #16
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Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
Posts: 2,138
Re: Bahia 46 A /C and Generator

Quote:
Originally Posted by Full Sail View Post
It still kicks out cooler air, but when the water is almost as warm as the air there is not much heat exchange. I used to run into the same problem when I got up north in the early spring..the water was in the 40's and the hvac produced little to no heat. These are marine air units also. This time of year both ac and heat work spectacularly
The condenser output will always be hotter than the water temperature (~150 degrees), hence there will always be heat removed via the heat exchanger. Granted, the cooler the water the more heat is removed from the liquid freon with a given flow, but your system will work very well if you can get the freon down to within 10 or so degrees of water temp. If you are noticing the performance difference when the water is 90+ degrees you probably need to increase water flow (bigger pump and/or clean strainer).

Using your line of thinking, the air cooled units like on your house would never work when the outside temp was above 90 degrees. The reason they do work is the condenser cooling coil and air flow is sized to support extreme outside air temperatures, hence, you water cooled one will work also if you have the correct water flow (given a working heat exchanger).
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Old 24-02-2012, 13:16   #17
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Join Date: Nov 2010
Posts: 17
Re: Bahia 46 A /C and Generator

Full Sail is it possible to see your boat in FL to see how the units are installed?
You can call or text me at 786-271-0666 or reply through here, as you wish.

Thx
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