Question about Dometic Rooftop RV Air Conditioner
You mention the attic in specific. Is this space now occupied as a living space? This is a similar problem with heating also.. Keep in mind that heat risesand of course cool air drops. So in cooling you are working from the floor upward and in heating you are ceiling downwardOn nice warm sunny days the heat is constantly replenished through the roo, which is seldom insulated, Unless the warm air has somewhere to go, it will stay where it is and once your ac brings the cool air layer to it's, exchange level it will only exchange and keep cooling the same air.,and what warm air that is below is constantly rising if not caught in the air stream to be cooled. In reality, Itwould be better to have the Air conditionr upstairs. but as it is right now, You need a means of venting the hot aitr to the outside. A gable fan or even a small window in the atticwould work. That's another thing, with no venting upstairs ther is no air current to carry the heat dow the AC unit. Venting will also lower your evergy bill and give your AC unit a break. Experiment with your car. Turn on the AC full blast with all the windows closed on max cool. Takes a while to cool the interior down, then open the window around 1" to 2" and you will see right away the difference it makes.. You can't drive the house down the road, but the car AC will actually work better going down the road. Most inexpensive remedy is to put a gable fan in, if it's now a bedroom,, install a 12x24 vent window. Then I truly believe you can defeat your problem.Even if your AC is underrated, it will to help it a little. Good luck and best wishes
Posted on Jul 13, 2009
If the difference in termperature is between 15 and 20 degrees between the inlet and outlet, the unit is doing all it can and is undersized. if not check for airflow problems, filters, dirty coils etc. and if that is all good, then there may be issues with the refrigerant charge
Posted on Jul 12, 2009
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Posted on Jan 02, 2017
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