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Old 06-20-2015, 08:06 PM   #1
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Getting more air from AC units

Let me start by saying I enjoy reading these forums and have been able to get some really good information. Now, to my issue. I have a new to me 2001 Safari zanzabar. I know the previous owners, my parents, and the history of the unit. That being said the air conditioner units both blow very cold air, it just doesn't seem to be enough flow coming out of the vents to cool the rig efficiently. I have cleaned the coils and filters on the units. I was just wandering if it is possible to install some type of fans in the vent system to help push more air..

Don
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Old 06-20-2015, 08:18 PM   #2
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Don is the air conditioner ducted or direct? If it's ducted you might want to get the ducts cleaned and see if that helps. You may have multiple speed fans and they are not operating on high.
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Old 06-20-2015, 08:27 PM   #3
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The install on some roof AC's uses tape (alum. or just duct) to prevent the cooled air from short cycling. This is when the cooled air is allowed to be sucked into the intake side rather than forced out the outlet (or duct work if that's what you have).

To check, you need to drop the interior plenum, and have a look around.

Not too long ago a gentleman with a twin to our coach wrote in about how the roof ducts had collapsed to about half their original size (our AC is ducted through the ceiling). Repair involved pulling the plenum and making a shim to hold the duct open to it's original width - making a noticeable difference in our air flow volume. In that process noted the tape used in our install was shot and was replaced as well.
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Old 06-21-2015, 12:19 AM   #4
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It might be helpful (and inexpensive) to simply add an oscillating fan to your RV to help move the air around.
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Old 06-21-2015, 03:00 PM   #5
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Quote:
Originally Posted by SarahW View Post
It might be helpful (and inexpensive) to simply add an oscillating fan to your RV to help move the air around.
I we have one of those little Dyson towers running right now. Not cheap, but they are quiet, and have a small footprint and move a lot of air..........
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