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Old 05-19-2017, 11:26 AM   #1
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1989 34' Limited
Greenville , South Carolina
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Upgrading My Airstream from 30amp to 50amp

Looking for someone in the southeast who could handle upgrading my 1989 34' limited from 30amp to 50amp and install a new rear AC?
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Old 05-19-2017, 11:30 AM   #2
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1957 26' Overlander
Winston Salem , North Carolina
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Out of Doors Mart, Colfax, NC
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Old 05-19-2017, 11:57 AM   #3
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Princeton , New Jersey
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Since to second AC will likely drain directly to the roof you are only dealing with electrical issue and any electrician can handle that. Pulling the umbilical through the body is going to be a challenge. You might consider installing a new panel, close to the entrance under the bed, for the 50 amp service and feeding the old panel and the new AC from it

Unless you are willing to remove the ceiling panel surface wiring may be the only option to feed the new AC.

Look very seriously at the air distribution configuration inside the new AC you select. The one I installed as a replacement on my trailer deliver NO AIR forward because of the location of the electrical box above the ceiling shroud. A very stupid design.
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Old 05-19-2017, 12:12 PM   #4
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1991 34' Excella
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1961 26' Overlander
Central , Mississippi
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I added a 2nd ac to our '91 34'. I used a 2nd breaker panel installed in the street side bedside cabinet and a separate 20 amp inlet. No need to upgrade to 50 amp unless you just want too. I routed the AC drain forward thru the ceiling into the bathroom, down the vent cover, behind the toilet and out thru the floor. Somewhere here on the forums I posted photos. Look for 'miles and miles of aluminum' under the 1000 Excella threads.
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Old 05-19-2017, 02:31 PM   #5
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1987 34.5' Airstream 345
Springfield , Ohio
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I just completed the conversion you are looking at and like the way we did it. We separated the line from the box fed by the generator that feeds the rear AC unit and wired a heavy gauge SO cord to feed the rear unit. We then ran a separate SO cord
from the generator output for that circuit and let them both hang into the generator compartment (using insulating grommets). We put a 20 amp female connector on the generator output line and a 20 amp male on the line feeding the rear AC. We can now feed the rear AC unit from a shore cord or the generator and can't get things hooked up wrong. No switches or relays and it is idiot proof.
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Old 05-19-2017, 02:48 PM   #6
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Originally Posted by HiHoAgRV View Post
. . .
Somewhere here on the forums I posted photos. Look for 'miles and miles of aluminum' under the 1000 Excella threads.
FYI: http://www.airforums.com/forums/f205...num-54749.html
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Old 05-19-2017, 03:54 PM   #7
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1991 34' Excella
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Quote:
Originally Posted by OTRA15 View Post


Well there it is!
Thanks, I'm no good at linking stuff on an iPhone
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Old 05-20-2017, 02:08 PM   #8
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1948 16' Wee Wind
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2007 19' Bambi
crossville , Tennessee
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install 50 amp box under bed or where can access ( your 30 amp box is in d/s/r overhead ? ) pull 30 amp shore cord back into trlr , cut plug off and feed into 50 amp box . hook to 30 amp brkr in 50 box .
run new 12/2 circuit to microwave , run new 12/2 circuit to ac mode on water heater ,
from 50 amp box leave ac outlets ( factory alone and install new 1s at micro and wtr htr ) fish new circuit from rear vent to 50 amp box ( fun part ) install 50 amp power port on exterior wall and go buy cord . this way all services are available at same time .
we normally also add 2 x 1400 watt forced air baseboard heaters to the ac circuits as not used at same time so will handle easily . replace range with 2 burner elect stovetop . send private contact if you need better description . we have removed propane tanks from 3 in the last 5 years and use space for charcoal and grill :-)
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Old 05-20-2017, 09:26 PM   #9
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our 1999..34'...
Installed AC deux (power and condensate line)..and , upgraded to 50 AMP..
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Old 05-20-2017, 09:58 PM   #10
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Here are a couple other pics
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