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Old 07-16-2012, 07:31 PM   #29
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Dan, thanks for the update. I'm going to try to build part of my AC mount tonight when it is a little cooler. I can't wait to try it out.

I went to work on my Yamaha 1000 generator and when I removed the gas cap, I noticed that the gas tank is completely rusted. I live in AZ and the generator wasn't left out in the rain (what little that we have). I took in to a local repair shop to see what it would take to fix it. I know it has less than 10 hours on it since it was new in 1994, and it probaby has less than 5 hours run time. The reason that is has such low time is because it wouldn't run the AC, so there was no reason to run it.
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Old 07-17-2012, 07:07 PM   #30
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I started this thread back on 5/16 about installing a 5,000 btu A/C in the window of my TW and operating it while boondocking with power coming from my 1,000 watt Honda genny. I finally completed the installation today and tested the unit. The installation and the test results were a resounding success.

I will carry the unit in the bottom of a closet just behind the rear wheels and will install it in the side window of my TW. The installation procedure is as follows: open the side window, remove the screen, remove the window crank and the right window latch, install the air conditioner using 4 sheet metal screws, install the clear Duraplex window panel using 15 sheet metal screws. The advantage of installing it in the side window is that the side window is not as important as the front or rear window in terms of window use or visibility and 2/3 of the window is still available for letting light in or viewing out. Installation takes about 10 minutes. Photos of the installed unit are shown below.

The beauty of this design is the flexibility. I believe that in the normal summer camping we will only need the air conditioner 1/3 to 1/2 of the time. As long as it only gets into the 80's and drops into the 60's at night we will probably just leave the A/C in the bottom of the closet. But if we go camping in a heat wave like we have had the past two weeks here in Virginia where the high is close to 100 every day and the low is only in the mid 70's, then we will have the option of installing the A/C.

It was in the high 90's today, but I did not get the installation complete and ready for testing until the temperature had dropped to 92 degrees. My plan is to only cool the middle section of the TW during the real heat of the day. I don't care how hot it gets, this area is only about 40 sq ft and I am sure the 5000 btu/hr A/C unit will keep this area cool just fine- either for a mid afternoon nap for adults or more than likely one of our grand kids. It cooled down just fine. It went from 92 to 70 in 30 minutes. I then opened up the door to the front of the trailer which adds another 70 sq. ft. My plan is not to cool this area during the day, but probably just in the evening especially if we have others with us sleeping in the front part of the trailer. This area cooled down to 75 degrees in about an hour.

I am so satisfied with the results of the 5k window installation that I am now ready to remove my Armstrong A/C unit and replace it with a Fantastic Fan.

The advantages of this design are overwhelming. They are:

- Clean design lines with no ugly appendage on the top.
-Save weight by carrying the 40 lb unit on the floor of a closet.
-Better handling dynamics for the trailer due to the weight savings and carrying the weight low.
-Save energy by cooling with 5k unit instead of 14k unit.
-Operate with a 1k genny instead of a 3 or 4k genny.
-Unit is new, so more reliable. If it dies, replace it for less than $200.
-Much quieter than the Armstrong unit.
-No annoying vibrations like with the Armstrong unit.

The only disadvantage is the 10 minutes it takes to install it. But hey, when it is 90-95 degrees, I will gladly spend 10 minutes to get cool.

Dan
Hi Dan
really like the design and idea of the clear duraplex window.
Just a quick question:
How do you secure the AC from "tilting" back?
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Old 07-18-2012, 11:12 PM   #31
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If you look at the photos in post #15, you will see the slot that I cut in the bottom of the AC unit. The location of the slot was selected mainly so that it was below the CG (center of gravity). By locating the slot below the CG the unit does not really want to tilt, and not much support is needed to hold it in place. Another photo shows the aluminum angle that is attached to the AC unit and is then secured to the window frame with only 5 sheet metal screws. The mounting is very solid because the CG sits right over the bottom of the window frame.

All

It was 97 degrees in Lynchburg today, so a good day to test my 5k AC unit. I first kept the door closed between the mid section and the front section. The temperature dropped from 93 degrees at about 1:00 to 75 degrees in 12 minutes. I then opened the folding door between the mid section and the front section. At about 2:00, in full sun, the temperature in the mid section was 73 degrees and the temperature in the front section was 79 degrees, a little warm, but 16 degrees below the 95 outside temperature. At 6:00 pm with the trailer in full shade, the mid section temperature was 70 degrees and the front area was 72 degrees.

I could not be happier with the performance of the 5k AC unit. I am now removing the Armstrong AC unit from the top. I will show photos tomorrow.

Dan
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Old 07-26-2012, 06:36 PM   #32
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VeggieBullet

...the slot that I cut in the bottom of the AC unit. The location of the slot was selected mainly so that it was below the CG (center of gravity). By locating the slot below the CG the unit does not really want to tilt, and not much support is needed to hold it in place....The mounting is very solid because the CG sits right over the bottom of the window frame.....

I could not be happier with the performance of the 5k AC unit. I am now removing the Armstrong AC unit from the top.
Dan
That CG point was clever...very nice point to consider, now just wondering if a 8K or 9K BTUs wall unit wouldn't work with a 1K Gennie..? That would cool your whole TW with no issues
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Old 07-26-2012, 07:52 PM   #33
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TouringDan, I wanted to thank you for the idea of the 5,000 BTU AC unit. I finally got to try it today. Of course it was hot in Phoenix and after about 1 hour of running, in the afternoon, the camper was very comfortable. The camper was in the shade, but that AC, would probably even cool it in the direct sunlight. Unfortunately, I didn't bring my camera today, so I will have to get some pictures of it tomorrow. I still need to finish the mount on it. The stainless steel transition piece that slides into the front sliding window fits perfect. The folks at Premier Industries did a terrific job.
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Old 07-30-2012, 07:23 PM   #34
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Here are the pictures that I promised. Premier Industries did a great job on the stainless steel transition piece. The AC works great. I can't wait to try it out boondocking with my 1000 watt Yamaha generator.










http://www.airforums.com/forums/f417...ml#post1181090
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Old 07-30-2012, 10:45 PM   #35
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Here are the photos I promised. The first photo is of the top of my TW showing the 3 vents and the original Armstrong AC unit. The second photo shows the Armstrong AC interior hardware. The third photo show the interior after the AC interior hardware has been removed. The fourth photo is the TW roof with the hole for the fan shaft and the hole for the refrigerant lines and the electrical wiring.

M2HB

Looks like a very solid installation of your air conditioner. It appears that you have the same 5k AC unit that I have used (with the plastic bottom).

Dan
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Old 07-31-2012, 07:51 AM   #36
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The 5k AC unit cools the TW adequately. I am very happy with the performance. I still am planning on painting the roof white and insulating the vents after I get the new Fantastic Vents installed; this will reduce the heat load and thus improve the cooling performance even more. I can not go to a larger AC unit because the 1k genny will not provide adequate power to start up the compressor on anything larger than 5k. Going to a larger AC unit also causes the weight to go up and the amount of space the AC takes in the window to go up- both are going in the wrong direction. Even if the 1k genny would start up a larger AC unit, I would stick with the 5k unit (460 watts power consumption) because this gives me more watts to power other things like the water pump, a circulation fan and recharging the batteries if needed.

Dan
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Old 08-01-2012, 09:46 PM   #37
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When I decided to install the AC unit in the window, I knew that I would have to deal with some unanticipated problems, because "new solutions have new problems".

The first problem had to do with having too much water in the bottom of the AC unit for one hole to drain. It was not that the hole was not large enough, the problem was that the drain pan was not flat allowing the easy flow of water to the drain hole. I just added about 4 more 3/8" holes. This was pretty easy to do since the bottom is made out of plastic. They do a much better job of draining the condensate from the drain pan.

The second problem had to do with the condensate running down the outside of the trailer. This was easy to fix also. I just put a scrap piece of aluminum sheeting under the AC bottom and it kept the water from running down the side of the trailer.

The last problem had to do with moving the AC unit from the window to the bottom of the closet. The condensate in the unit would leak all over the floor. I just put a towel on the floor and set the "wet" AC unit on the towel and let the water drain into the towel.

All three problems had to do with the condensate and all three were pretty easily solved.

I just returned from 4 days camping while I went to Floydfest in the mountains of Virginia. Since the camping area was at about 3,000 ft elevation (Rocky Knob on the Blue Ridge Parkway) it was only in the middle 80's during the day and got down to the mid 60's at night, so I did not even need to install my AC unit and run the genny. I just opened my windows and ran the Endless Breeze fan for a few minutes when I returned from the festival about midnight each night.

My batteries started out at 12.79 volts and after 4 days of camping, they were still at 12.79 volts. Go figure.

Dan
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