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Old 10-05-2005, 06:42 PM   #1 (permalink)
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Installing an AC unit in enclosed trailer

Have any of you installed an air conditioner unit onto an enclosed trailer? Is there a brace kit you can buy to support the weight of the unit? The trailer is a 2006, 8x16 Wells Cargo with 24" centers. I intend to use it primarily to haul my bikes, but I would like to set it up so I could camp in it if I wanted to. It is very hot and humid here in Southern Maryland about 6 months out of the year, so AC is very nice for sleeping.
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Old 10-05-2005, 07:16 PM   #2 (permalink)
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I just put a 110, 6000 BTU window unit in my trailer. I wanted an overhead unit like on RVs but could not justify the cost. I mounted it low and in the center of the front. I cut a 2x12 off and braced it inside and used some strap iron to brace it on the outside. Not much to see but I can get some pics tomorrow if you want.
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Old 10-05-2005, 08:54 PM   #3 (permalink)
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Question: Does your trailer have a roof vent/skylight in it? The reason I ask is because most rooftop A/C units install in the standard 14"x14" roof vent opening. Most trailers are framed for vents/skylights even if they aren't installed....they just skin over the framing. You can give Wells Cargo a call, give them your trailer serial no., and they can tell you the location; or mail you the framing diagram for your trailer.

Here's some flix of a 13.5K btu A/C-Heat unit I recently purchased that will show you the simplicity of how they're mounted. Hope this helps.
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Old 10-06-2005, 12:43 PM   #4 (permalink)
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Cargo trailers don't need the bracing for a vent like an RV does. They simply cut a hole in the roof and screw the vent down.

Go back to your dealer that sold you the trailer and have them order the brace kit for that vent hole. I know that Haulmark can do that, so I'm sure that WC can too. Tell them that you are installing an AC. It will be an "H" shape with two horizontal lines instead of one. Those get welded between the roof bows.

You will need to do a bit of wiring. Basic 110v stuff.You need a power supply cord, like on an RV. You will need to mount a breaker box inside the trailer. Your WC dealer should be able to get you one of the smaller boxes like they use. 4 slots: main, and three breakers to run from. Then you gotta run your wires up to the AC. You just have to match colors there.

Simple stuff.
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Old 10-06-2005, 03:42 PM   #5 (permalink)
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Quote:
Originally Posted by n9emz
Question: Does your trailer have a roof vent/skylight in it? The reason I ask is because most rooftop A/C units install in the standard 14"x14" roof vent opening. Most trailers are framed for vents/skylights even if they aren't installed....they just skin over the framing. You can give Wells Cargo a call, give them your trailer serial no., and they can tell you the location; or mail you the framing diagram for your trailer.

Here's some flix of a 13.5K btu A/C-Heat unit I recently purchased that will show you the simplicity of how they're mounted. Hope this helps.
DuoTherm
Just did the same thing a few weeks ago, yank out the vent/skylight and bolted it down...
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