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Old 05-05-2011, 09:18 PM   #1
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2nd A/C installation

Hi all! This is my first post in the Forums so forgive me I've searched without luck so maybe you folks can assist.
The wife and I have a 2010 Rockwood Ultralight 8313BSS and I'm considering installing a second AC unit in place of a current roof vent. We have 13k BTU but it cant keep up with the Temps here in CA. So, does anyone know if Rockwoods are pre-wired for these possible upgrades and will we have to upgrade from 30A to 50A service? Much Thanks in advance!!!

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Old 05-05-2011, 09:54 PM   #2
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I am sure you will be going to a 50A service. If you look at where you plug your electric into your RV. It should say 30amp or 50 amp on side. If it's 30 amp then probably not wired. If it's 50 amp then probably wired.

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Old 05-05-2011, 10:09 PM   #3
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Besides the post above, you will NEED 50 amp service for 2 ac units. Take the inner vent cover down, and see if you find a wire coiled up, a large 14 gauge house type wire. If you have no wire, will have to run one. Then if you have 30 amp service, will have to convert to 50 amp service. Not what you wanted to here.
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Old 05-06-2011, 04:34 AM   #4
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Hmmm....I have an 08 Flagstaff 30 footer, and I live in Florida, and have a 13,500 btu unit that works just fine. We have to turn it down even, at times. If I was you, I'd get that unit checked out, there may be something wrong with it. That trailer was not designed for a second unit; I think you would have to do some pretty major changes, to accomodate another unit. Besides the initial wiring, the converter would need to be changed to a 50 amp style as well, and roof bracing added where the other unit would go, too. Your unit was built as a 30 amp one AC unit. Some people do however upgrade to a 15,000 btu unit though, and that would be a much easier switch out. Basically, just swap them over. Good luck with your decision! Randy
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