Coast Resorts Open Roads Forum: General RVing Issues: AC not keeping up


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LarryJM

NoVa

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Joined: 11/09/2007

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Posted: 07/19/10 11:52pm

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Martyn wrote:

cruiserjs wrote:

In my opinion/experience most RV roof A/Cs will only reduce the interior temp about 10-15 degrees below the outside temp. If you get more than 15 degree drop consider yourself pretty lucky.

I am of the same opinion/experience!

Don't expect the RV A/C to be like a home A/C - a 20 degree drop is about the most I have ever experienced. And, when it is is really hot, don't run the a/c fan on low - I have found that leads to compressor freeze-ups.

Well that sure isn't my experience. Unless I'm in full sun and on a 100 deg day my single 13.5K unit will keep my 31' TT down in the low 70's (that's a 30 deg drop). Now in full sun it does struggle to keep it below about 75, but the air temp out of the registers is still around 55 to 60 deg which is almost a 40 deg drop from the outside temps. The problem is the lack of insulation and the ducted air being in the roof which is exposed to the sun.

Right now we are staying in our trailer since our home A/C quit and will be replaced today. We are under some trees and today with the outside temps up in the mid 90's the inside temps stayed steady at 71 deg with the A/C cycling like every 15 min or so.

Larry

2001 standard box 7.3L E-350 PSD Van with 4.10 rear and 2007 Holiday Rambler Aluma-Lite 8306S Been RV'ing since 1974.
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