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Old 07-10-2013, 09:34 PM   #1
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Question about my ducted a/c

I just got my Avenger 26BH in april and everything seems to be going ok, except i notice that no air flows through the two vents in the bed room. The vents on the other side over the bunks works great, especially if i close the little side vents on the unit itself.

Is it possible that some ducts were not connected? Is there a way for me to get to them, i guess where it connects to the unit?
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Old 07-11-2013, 08:00 AM   #2
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You need to have the vents closed on the unit to push air to the ceiling vents.

The vents on the unit are used to "quick cool" the trailer when first started. After trailer cools down a bit, then close the vents, and it will push through the ceiling vents.
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Old 07-11-2013, 09:01 AM   #3
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Closing those vents makes no difference. The vents that do work still push air with them open.
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Old 07-11-2013, 12:33 PM   #4
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Unless it is magic, the ceiling vents do flow LESS when the AC center one is open. You would have to check with a velometer to make sure. The AC has only one outlet fan, so adjusting one outlet HAS to effect the others.

Also, the pressure drop in the ceiling ducting and roof cooling losses would make the ceiling vents much less effective at cooling the whole rig. You are almost better to go with a couple of fans to distribute the cold air to the bedroom, IMO and IM experience.
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Old 07-11-2013, 12:34 PM   #5
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OH and yes it is possible for some vents to be disconnected, especially if they are off the main duct channel.
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Old 07-11-2013, 12:43 PM   #6
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YES it is possible that the ducting is not hooked up properly, OR that there is a blockage. Some "ducting" is really just channels through foam. If the foam hasn't been removed or chunks are blocking you won't get airflow through those ducts. I suggest you remove the vents that aren't working and take a peek inside as much as you can. You may find that there is a complete blockage there which needs to be removed. If the blockage is near the unit, that's a bit more difficult to investigate.
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Old 07-12-2013, 11:08 PM   #7
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How are the vents removed? I have the round ones that turn to aim the air.
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Old 07-12-2013, 11:18 PM   #8
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Quote:
Originally Posted by chris1911 View Post
How are the vents removed? I have the round ones that turn to aim the air.
Just give them a tug as mine just snap in.
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Old 07-17-2013, 09:20 PM   #9
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Most TT ducting is just channels cut in the roof foam. Maybe a piece of loose foam is blocking the channel to those vents.
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Old 07-30-2013, 09:59 PM   #10
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Fixed my airflow problem. The ducting was clear of obstructions.

I found the problem when i opened up the door to the unit itself (the one with the filter on it). There is a piece of insulation that separates the intake side from the output side that was not secure. It was pushed over, allowing much of the air to just go back into the intake. I put the piece back in place and sealed it up with foil tape. Now i have good airflow throughout.

thanks for the suggestions.
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