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Old 08-02-2017, 11:01 AM   #1341
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Darin

Here is what I think I've learned about the airflow to the bunk house. The system is a "racetrack " design. I believe the bunkhouse is the last vent on the loop for the main ac. However, it's the second vent on the bedrooms loop. Try running only the bedroom ac and feel how much airflow comes out of the bunk house vent vs. the flow from the main ac. One other note I forgot to mention. After I removed all the rings and saw the effects, I went back to the loft and opened up the dummy panel again to access the bunk house duct. I took tin snips to the metal trim ring and cut it down as well. Now, all the vents have unimpeded, full flow of air.


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Old 08-02-2017, 11:07 AM   #1342
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Camping this week and could not stand still. A little power mod today in the outside kitchen. Figured out vacuum is not working. Never stops!

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Old 08-02-2017, 02:18 PM   #1343
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Great job Redbird7 [emoji3]


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Old 08-02-2017, 02:48 PM   #1344
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Darin

Here is what I think I've learned about the airflow to the bunk house. The system is a "racetrack " design. I believe the bunkhouse is the last vent on the loop for the main ac. However, it's the second vent on the bedrooms loop. Try running only the bedroom ac and feel how much airflow comes out of the bunk house vent vs. the flow from the main ac. One other note I forgot to mention. After I removed all the rings and saw the effects, I went back to the loft and opened up the dummy panel again to access the bunk house duct. I took tin snips to the metal trim ring and cut it down as well. Now, all the vents have unimpeded, full flow of air.


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The A/C have 2 ducts that run the length of the trailer. 20" apart

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Old 08-02-2017, 02:57 PM   #1345
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Lighting

Thanks Jason wanted something 12 volt since we mostly dry camp.And you right you see can not see a darn thing on that panel in the dark.We found a 7 Led strip light takes 4 triple A batteries.And the Leds actually rotate, going out the 21st will see how they work! $7.99 Harbor Freight Thanks
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Old 08-02-2017, 03:18 PM   #1346
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This evening, I finally completed the ceiling vents mod in full. I removed all 8 vents, discarded the black (already cut) rings, taped up the vent holes with leftover reflectix 2" aluminum foil tape that I already had from the reflectix project back in May (made shields for all my windows).

Nobody mentioned cleaning the inside lip of the duct with alcohol before applying the tape. Boy, was it dirty up in there! Took about 2 hours total. The loft ring was the only one I didn't get to cut back in Feb, as I overlooked it. While up in the loft and a/c running on low, the breeze was very light. While taping it up, I could feel the increase in air flow to about double. Obviously, the uncut protruding ring was still the culprit of low flow. However, the flow still seems about the same in the other 7 vents. So, whatever flow may have been leaking into the attic, has made the loft flow increase to double. However, I've yet to do Tom's mod to the bunkhouse duct, which now has hardly any airflow on low.

Count my vote also to call this one the mod of the year!
Where does one find this 2" aluminum foil tape? Lowe's or somewhere similar I suppose?

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Old 08-02-2017, 03:19 PM   #1347
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Where does one find this 2" aluminum foil tape? Lowe's or somewhere similar I suppose?

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Lowes, Home Depot or really any hardware store.

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Old 08-02-2017, 03:21 PM   #1348
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Lowes, Home Depot or really any hardware store.

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Thank you!

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Old 08-02-2017, 05:33 PM   #1349
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Now I have a project for next week too. Think my HT is the same.

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Old 08-02-2017, 06:47 PM   #1350
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The A/C have 2 ducts that run the length of the trailer. 20" apart

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Yes, and they're connected like an oval racetrack. Airflow circulates around the track going front to rear on one side of the coach and rear to front on the opposite side. At least that is how Jayco explains how it is supposed to work.


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Old 08-02-2017, 06:56 PM   #1351
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Lowes, Aisle 18, Bay 14. Got some today! Mod tomorrow. This forum is awesome!
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Old 08-02-2017, 07:49 PM   #1352
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Where does one find this 2" aluminum foil tape? Lowe's or somewhere similar I suppose?

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You can get 30 feet of refletix 2" aluminum foil tape on amazon for less than $6. You won't need more than 14 feet. I bought an extra 150' at Menards yesterday for 10.99. Yeah! I get to take it back as I used up every last inch of what I had left doing reflectix bubble panels for all the window back in May.
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Old 08-02-2017, 08:58 PM   #1353
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Darin

Here is what I think I've learned about the airflow to the bunk house. The system is a "racetrack " design. I believe the bunkhouse is the last vent on the loop for the main ac. However, it's the second vent on the bedrooms loop. Try running only the bedroom ac and feel how much airflow comes out of the bunk house vent vs. the flow from the main ac. One other note I forgot to mention. After I removed all the rings and saw the effects, I went back to the loft and opened up the dummy panel again to access the bunk house duct. I took tin snips to the metal trim ring and cut it down as well. Now, all the vents have unimpeded, full flow of air.


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Tom, you beat me to it. This afternoon, I'm able to bend my left knee a whole bunch more for a good turn healing this poison ivy after seeing the dr again yesterday to up my meds. I must say, it is tough working up in that little confined space. You must be both left and right handed. I did the full treatment to the bunkhouse.

Since I didn't have tin snips, but only a dremel, I didn't wanna make a mess up there, so I chose to remove the ducting altogether to cut outside. The bunkhouse vent edge was sandwiched between the sliding door header and was very difficult to get out, but you must scribe with a pencil to cut flat so it'll fit back up there. I had to cut the hose and wire snip the coil to get it loose from the vent, as it has two plastic barbs that won't allow it to come off. Did your vent outlet get sandwiched like mine?

Took the metal duct outside, marked 1.5" all the way round and used a metal cutting wheel to do a nice job, filed all the sharp edges down. I decided to seal the inside since it wouldn't fit back up in the hole with foil sealed attic first. It was a very tight fit with just one thickness of the foil tape up in the hole, so I slightly bent all the edges inward a little to give it a cone head start. Success. Now after cutting off about 4" of the hose duct, only 4" left hanging down stretched all the way.

Then I used two 3/4" cabinet hinge screws to screw the dummy board back in. You are correct, when I turn on the master a/c, a whole bunch more air now comes through. However, the airflow was generally the same before and after with only main a/c. But at least I know I'm getting max air now.

About 3 hrs total I guess. Hard part was peeling that tape on about 2 dozen pieces of cut foil. The taped hole in the loft had a 1/4" wider gap than the rest of the rig for some reason, so it took about 10 strips of 2.5" length vertically applied and overlapped by 1/4". I did several at a time to daisy chain first to make sure the overlap is firmly pressed. Otherwise it's difficult to get a good seal if you put up one at time. Then a sharp small kitchen knife to make cuts every 1.5" to fold the flaps into the vent. But nonetheless, a first rate job I'd say, and glad its finally done. Here are my pics. I had more, but the limit is 10.
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IMG_9198.jpg   IMG_9209.jpg   IMG_9210.jpg   IMG_9213.jpg   IMG_9201.jpg  

IMG_9208.jpg   IMG_9214.jpg   IMG_9202.jpg   IMG_9216.jpg   IMG_9221.jpg  

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Old 08-02-2017, 09:04 PM   #1354
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Darin

Looks good. I think you are correct...it helps if you're both left and right handed! [emoji3]
Sounds like you just about got that poison ivy beat.


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Old 08-02-2017, 09:22 PM   #1355
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Yes, and they're connected like an oval racetrack. Airflow circulates around the track going front to rear on one side of the coach and rear to front on the opposite side. At least that is how Jayco explains how it is supposed to work.


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I dont think the left connects to the right. 10 years ago with one A/C one went forward and the other went rear. That was standard procedure on all A/C installs.

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Old 08-02-2017, 09:38 PM   #1356
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I thought they had to be connected because no matter which unit is on you get airflow from all vents.

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Old 08-02-2017, 10:25 PM   #1357
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I thought they had to be connected because no matter which unit is on you get airflow from all vents.
That's what mine does
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Old 08-02-2017, 10:31 PM   #1358
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I wonder if there is a duct fan that would fit inside the bunkhouse duct that would pull air out of main AC duct and blow into the bunkhouse? What size duct and metal roof fitting is that (for the guys that have taken it apart)?
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Old 08-03-2017, 05:09 AM   #1359
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Love seeing all these cool mods!
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Old 08-03-2017, 05:56 AM   #1360
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I did this mod last year and my gap is bigger than what others have been posting and my black cylinders don't make it into the ducting. I used 2" tape which was barely wide enough.

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