Dehumidifier vs. AC?

marbelliana said:
On the subject of AC, my Searay AC (Cruzair) always runs the fan whether the compressor turns on or not. As I understand it, apparently there is a setting that will allow me to only run the fan with the compressor is running. 2007 Searay Dancer...anyone know how to program that in? I didn't see it on that little "instruction" manual that's stuck inside the thermostat door!
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If you have SMX II controls take a look at page 14 in the manual linked below.

If not you can find a manual pretty easy using google.

https://drive.google.com/drive/folders/0B8tt3ZNrHwa9TUJsMFF4cXBUWHc
 
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I have started leaving ours on 80*. I read somewhere on here that it is best for the fridge to maintain 80* or less.

Bennett
 
marbelliana said:
On the subject of AC, my Searay AC (Cruzair) always runs the fan whether the compressor turns on or not. As I understand it, apparently there is a setting that will allow me to only run the fan with the compressor is running. 2007 Searay Dancer...anyone know how to program that in?
Click to expand...

I’ve been wondering about this too.

I have 2 Marine Air units and the fan and water pump run regardless of whether the compressors are running or not.

This is fine when using the AC, but the cool air blowing between heat cycles bugs me.

This is an older 3 knob system and there doesn’t seem to be any programming beyond that.

My last boat had a Mermaid AC system and the pump and fan only ran along with the compressor.

Any suggestions for changing this situation?
 
So, does anyone know the voodoo combination of buttons I need to push on my thermostat in order to program the fan to shut off when the compressor isn't running? And how about to switch on "HU" mode?
 
marbelliana said:
So, does anyone know the voodoo combination of buttons I need to push on my thermostat in order to program the fan to shut off when the compressor isn't running? And how about to switch on "HU" mode?
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Capture.JPG


The picture is to set it to HU mode. Not sure about the other question. Press the three circled buttons at the same time.
 
You folks who live in the hot and humid areas of the country have different issues than those of us up north who use our boats for day boating when not cruising. Living on a boat on weekends and keeping the fridge on changes things. Damp conditions do too. Can see the need for some level of a/c under these conditions. However, as I write this reply we are experiencing a spell or 69 degree dew points and 80 plus degrees outdoor temps. Our fridge is off and the boat is probably in the 90s down below. There is no smell, just very warm and a place you don't want to be. I can open up the door to the salon let the heat out and it will be ok in a few minutes. Turning the a/c on with the door closed and it will be in the 70s in a few minutes, again with no smells. I believe our comparatively low dew points allow us Michigan boaters to save on cooling unless we are in cruising mode or weekend live aboard mode.
 
sbw1 said:
You folks who live in the hot and humid areas of the country have different issues than those of us up north who use our boats for day boating when not cruising. Living on a boat on weekends and keeping the fridge on changes things. Damp conditions do too. Can see the need for some level of a/c under these conditions. However, as I write this reply we are experiencing a spell or 69 degree dew points and 80 plus degrees outdoor temps. Our fridge is off and the boat is probably in the 90s down below. There is no smell, just very warm and a place you don't want to be. I can open up the door to the salon let the heat out and it will be ok in a few minutes. Turning the a/c on with the door closed and it will be in the 70s in a few minutes, again with no smells. I believe our comparatively low dew points allow us Michigan boaters to save on cooling unless we are in cruising mode or weekend live aboard mode.
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Couldn't have said it better.

There is no boating in FL during the summer without AC. You can't sleep at night and everything is damp and sticky if you leave the hatches open during the day. Refrigerators don't work as well and materials absorb the humidity and become musty.

It's 90+ degrees outside during the day, the cabin temp rises into the 100's if left closed. Opening up the cabin hardly lowers the temp at all.

We leave the AC set to 80 all the time when we're not at the boat. If I were to turn the AC on the day we needed the boat, it would run all day and barely keep up.
 
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