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Old 08-16-2007, 06:07 PM   #1
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Question tomorrow's the big day

Tomorrow if all goes well the new carrier low profile goes on the roof of the 69 tw. I checked with Andy at Inland RV and he instructed me to the location of the wires, which were easily within reach of the measurement. I was however surprised that after cutting the hole and plugging the trailer back in, that the wires were only capped with nearly 40 year old masking tape and were hot (found with a circuit tester). I did some more investigating to find that at some point the PO had re-ran another main line from the univolt to the main 30 amp breaker, then jumpered from the 30 amp breaker to the frig receptical. So I'm returning it back to stock wiring, however I discovered that the bottom 20 amp breaker by the front control panel (not the main 30 box by the hot water heater) controls the A/C lead. Is this what others have encountered? My assumption was that the A/C power feed came in next to the 30 amp trailer main on a seperate lead. Help appreciated!
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Old 08-16-2007, 07:42 PM   #2
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Rivet New Carrier AC

Quote:
Originally Posted by goransons
I was however surprised that after cutting the hole and plugging the trailer back in, that the wires were only capped with nearly 40 year old masking tape and were hot (found with a circuit tester).
Glad you found it with a circuit tester!

Which Carrier did you get? One is my highst priority, as soon as I can afford it. Keep us informed. Photos of the install will be greatly appreciated.

Vaughan
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Old 08-17-2007, 07:11 PM   #3
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Smile A/C Install photos

First and foremost, this being my first time working on an airstream, there is likely better and easier ways of doing it, I just didn't find them before installing! I wanted to make sure it was structurally secure and electrically safe (and of course water tight).

It all became clearer once the install got underway. I cut the small hole last night to find the wires, and spent the time tracking down where wires were supposed to go. I was confused until I cut the hole bigger and could see where the wires were running between the skins.

After making sure all wires were clear I carefully drilled a 3/8 hole in each corner of my marked 14" square on the ceiling, the followed up with tin snips and carefully cut the opening. Once clear I again drilled, this time through the skin the four corners, then climbed the ladder and connected the dots and again cut the skin.

I used 2" aluminum "C" channel to add support. I had to scribe the ends and taper them down a bit so the ends didn't press into the outer skin, then attached both new cross members to the ribs, then boxed to the new cross members to complete all 4 sides. Each connection was made with 2 1" L brackets from the hardware store. A 1 1/2 in hole saw was used to cut a hole on the drivers side for the wiring, and wires passed through with a 1 1/2 rubber grommet.

Once that was done, I had to shim with some of the cut-out scrap to maintain the exact outer skin curve, then secured top and bottom sheet metal to the c channel with 3/16 aluminum pop rivets. Had a friend over for about 10 minutes to get the unit out of the house and on the roof. We use 2 3 legged orchard style step ladders which could be placed parallel at a 45 degree angle next to the trailer (so we never had to climb up there, and didn't have to lean anything on the trailer).

Unit fit great, but noticed the profile in the ceiling trim wouldn't allow for the unit to fit without being distorted. I cut 3 pieces of 1x3 poplar with a 35 degree miter to match the profile. That will later get caulked and painted to match the ceiling (which already had 2 different colors of paint on it when we purchased it).

Torqued unit down until the gasket looked just over half size, and wet the trailer down to check for leaks, none! Trim on for now until painting time. It was 90 degrees today, and the unit had the trailer down to a cool 72 degrees pretty fast while on the low setting.

Hope the pictures help anyone else that was nervous like me. Thanks Andy for the measurements and assistance with location in the ceiling.
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Old 08-17-2007, 07:23 PM   #4
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Awesome! Great job! Pat yourself on the back for that one, AND for taking such nice pics!

Your post will be very helpful for those who have not done this yet (hopefully we never will, since we already have a/c, but you never know!).

Susan
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Old 08-17-2007, 07:38 PM   #5
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Rivet Nice Job!!!

Iím sure your photos will provide guidance for a lot of people! Karma coming your way.

Vaughan
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