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Sheri and I found that by adjusting the RV Air Conditioner vents that we could help the RV get a little cooler and keep the cool air distributed better.
RV Air Conditioner Vent
The RV Air Conditioner Vent will only show up apart and separate from the RV air conditioner if your RV has air conditioning ducts built into the RV.
If you look at the ceiling and see vents, then you have air conditioner ductwork in your RV. I can provide some really good RV buying tips to make sure the ductwork is what you want it to be.
One of the first things I can think of is to make sure that you have plenty of ducts, distributed approximately in the correct number for a given space. What I mean by that is that if you have TWO ducts in your bathroom, which is the smallest area in the RV, then only have TWO in your living space, then I would question that design. You should have 2 in the bathroom to at least 3 or more in the living space.
The next thing is that if the vents can be controlled to be closed and opened that is even better – now you can direct the cool air. However, that ONLY works if there are an abundance of vents. If there are not very many and you plug one to put more air in another room, it could actually spell trouble for the air conditioner – causing it to freeze up or work too hard. Air flow is important for the air conditioner.
Most importantly, if you will have your RV in 105 degree temperatures and are hoping for an internal 70 degree temperature, you’re going to have to make sure that the AC can maintain a 30-35 degree differential between the outside and the inside of the RV. I’m not sure the best way to do this other than to crank the AC on full blast and see what happens while you are in the dealer lot.
If the RV you are testing can maintain the differential, then chances are even if you order one it probably has properly functioning vents and AC design.
I know in our Open Range 399BHS, I think the BEST we can achieve is about a 25 degree differential. That isn’t too bad, except in the middle of the Texas summer.
We believe the ducts in the OR 399BHS are 1) too small in cross section area, 2) arranged in such a way that the air cannot cool the central room in the 399BHS. I think larger ductwork could have helped. I’m not criticizing, I’m just saying I think it could have been done better.