My best add-on: Air conditionned in my U-haul CT-13 - Page 2 - Fiberglass RV


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Old 06-25-2013, 09:13 PM   #15
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Name: Dan
Trailer: U-Haul CT-13 1985
Quebec
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Originally Posted by rabbit View Post
Dan, I'm assuming the centerline strip (aluminum flat strap maybe?) is screwed to the wood blocks bonded to the glass ceiling at intervals thru the Reflectix. I don't know what stickum you used but I can see the squiggle on the block so guess it's a caulk gun adhesive. The Escondido Burros used plywood blocks adhered with polyester body filler to catch screws thru a thin upholstered Naugahyde centerline panel. The screw heads were covered by white snap-top screw covers to match the white Naugahyde. Did you also use a contact cement between the Reflectix and the bambo?

jack
I used Lepage PL Premium construction adesive to hold plywood blocks on the roof. Then I installed an anodised aluminium bar moulded to the roof with stainless steel screws in the newly installed wood blocks. This center bar is just there to firmly hold the bamboo in place because on the side, it is only installed in a plastic track.

Dan
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Old 06-25-2013, 09:18 PM   #16
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Your ceiling attachment method (channels at sides and a batten w/ mechanical fastening in the middle) warrants attention by those who have had trouble doing this headliner job with spray adhesives alone.

jack
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Old 06-27-2013, 07:31 PM   #17
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Name: Betty
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I have got an old Trillium 4500, I have got to A/C the trailer and your mod looks like something I would like to do, I tried a portable unit but the backflow limited it's effectiveness and was told by the Mfg that the 8000 BTU unit was to large for the trailer and that was the reason it did not work. approx. 70sqft
Questions:
I take it the 2 round plugs is for the exhaust if not how did you exhaust to the outside and I assume you did not have a back flow issue.
What is the brand name of the unit and what was the dimension,
I need any help I can get.
Booper
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Old 06-27-2013, 08:40 PM   #18
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Does the A/C require a drain of some sort? If so, how did you address this?
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Old 06-28-2013, 07:18 AM   #19
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Does the A/C require a drain of some sort? If so, how did you address this?
I think that the black circle in the middle of the AC mounting plate is the drain.

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Old 06-28-2013, 08:34 AM   #20
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Name: Dan
Trailer: U-Haul CT-13 1985
Quebec
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Originally Posted by booper52 View Post
YouHauler
I have got an old Trillium 4500, I have got to A/C the trailer and your mod looks like something I would like to do, I tried a portable unit but the backflow limited it's effectiveness and was told by the Mfg that the 8000 BTU unit was to large for the trailer and that was the reason it did not work. approx. 70sqft
Questions:
I take it the 2 round plugs is for the exhaust if not how did you exhaust to the outside and I assume you did not have a back flow issue.
What is the brand name of the unit and what was the dimension,
I need any help I can get.
Booper
Hi booper,

The model I used is Danby DAC 6011E 6000BTU but I guess that any 5000-6000 BTU will work. However, to function properly, you need to install it correctly. There are two separate air path in this unit. The first one is for inside and the second one is for outside. Because the unis is fully enclosed inside the trailer, you must create this outside path artificially with an INLET and OUTLET access hole. I gave you a picture showing what I mean. Also, you need a wall to isolate the air path under the seat. I also sent you a picture of this wall.

Hope this answer your questions.

Dan
Attached Thumbnails
principe.jpg   Top_coved_removed.jpg  

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Old 06-28-2013, 08:51 AM   #21
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Trailer: U-Haul CT-13 1985
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Originally Posted by Thomas G. View Post
I think that the black circle in the middle of the AC mounting plate is the drain.

Yes this is the drain hole. However, I needed to modify the A/C accordingly because these type of cooling units have an internal reservoir that direct the water directly to the condensor (exterior side) fan. When the water hit the fan, the water splashes in the condensor and evaporates. BUT when humidity is high, this system cannot handle the extra water and overflow outside. In a window application, this is not a problem. But with an enclosed application like here, it is. So I modified the inside A/C reservoir in a way that ALL water is directed in a home made drain. And I did a outside drain directly under this homemade drain in the A/C. I give you a picture of this A/C mod. At the same time, I did another modification in the unit. Because these A/C are not designed to support heavy road bumps, I installed a bracket to support the compressor at the top to help reduce the vibrations that would otherwise be warmful for the fragile tubing going to the compressor. I also posted a picture of this compressor bracket.

Hope it help.

Dan
Attached Thumbnails
Drain_hole.jpg   Reservoir design.jpg  

P1070986.jpg   P1070988.jpg  

Compressor anti-vibration bracket_addon.jpg   Drain#2.jpg  

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Old 06-28-2013, 10:41 AM   #22
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Great explanation Dan. I didn't realize that they splashed the water onto the evaporator, but this explains some comments that I read in small AC reviews re water spraying out of the units.
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Old 07-03-2013, 11:48 AM   #23
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Did you air duct for the air in/out port on the fiberglass to the a/c unit?
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Old 07-03-2013, 12:59 PM   #24
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Trailer: U-Haul CT-13 1985
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Originally Posted by tartosuc View Post
Did you air duct for the air in/out port on the fiberglass to the a/c unit?
I just installed an isolated styrofoam wall between the "IN" and "OUT" ports. In that way, the airflow coming from outside must pass by the A/C before it is exhausted outside by the "OUT" port. Hope it helps...
Dan
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Inside_view_outlet.jpg   Top_view_outlet.jpg  

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Old 07-03-2013, 01:02 PM   #25
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Very impressive job! I agree I wish the manuf did a similar install of the ac unit.
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Old 07-03-2013, 01:35 PM   #26
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Excelent job with alot of fore thought. Nows the time to buy another exact same unit and store it in the garage incase of future failure. With built in units you dont want to redesign in the future and these things are not getting any cheaper. Models are being redesigned every year or so and future changes with Freon/coolant are going to make manditory changes necessary.
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Old 07-03-2013, 02:37 PM   #27
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Name: Diane
Trailer: u-haul ct13
Virginia
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Dan, these are great Mods! I love everything that you did. I am curious about your front dinette table, the leg and mounting. Also am curious about the back over bed wire shelf, it's mounting. I know this thread is about the wonderfully crafted air conditioner fit so ...
And you have made me decide to paint my cabinet doors also.
Thanks!
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Old 07-03-2013, 03:37 PM   #28
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Name: Dan
Trailer: U-Haul CT-13 1985
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Excelent job with alot of fore thought. Nows the time to buy another exact same unit and store it in the garage incase of future failure. With built in units you dont want to redesign in the future and these things are not getting any cheaper. Models are being redesigned every year or so and future changes with Freon/coolant are going to make manditory changes necessary.
Good idea, It may save a lot of work it it fail later.
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