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Old 06-17-2018, 07:21 PM   #1
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Default Outside 6" vent for a portable air conditioner

Greetings!

I recently bought and installed a portable A/C unit in my Ram ProMaster. It is small, quiet, and works very well. It can cool, vent, dehumidify, and heat also. Here is the model:

https://www.amazon.com/dp/B01NBVD8WS/ref=pe_2640190_232748420_TE_item

I have a dilemma about making an outside vent for it. It has a 6" air hose that needs to be vented.

So far I bought a household vent with louvers. It looks not great but okay, but I do not like that the louvers flap when I drive. Has anyone seen any better side vent options?
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Old 06-17-2018, 10:30 PM   #2
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Nice idea. Ive thought that someday when I build out my own van that I would figure out a space for an AC like this and skip the one on the roof. Then only carry it when AC use will be needed. Id get a two pipe one, though.

For venting, I was thinking about having awning type windows and fabricating some sort of box that was shaped to fit in the awning window replacing the screen on one side and had a way to attach the AC pipe on the bottom. Would make two of these one for supply and one for return. The awning window would have to be open to run of course.
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Old 06-17-2018, 10:32 PM   #3
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Thank you for posting...I want to do the same for my "some day van" so, I look forward to reading replies to your post.

Is your van a cargo or passenger Ram ProMaster? What powers your portable a/c?
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Old 06-17-2018, 11:34 PM   #4
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My van is a Ram ProMaster 2500 159" wb window van. I like the windows because of the good visibility. It has no interior yet. I like it this way for now, I transport my dirt bikes in it.
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Old 06-18-2018, 02:06 AM   #5
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For what it's worth, there are no passenger Ram Promaster vans, only cargo vans and cut-aways. Fixed windows are optional in the passenger side sliding door, and on the drivers side if the optional sliding door is ordered. Despite the windows, no additional passenger seats or interior fittings are offered from the factory.
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Old 06-18-2018, 02:49 AM   #6
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Quote:
Originally Posted by mtmdatlanta View Post
For what it's worth, there are no passenger Ram Promaster vans, only cargo vans and cut-aways.
Sorry, my van does exist. You can even order a new one.

https://www.ramtrucks.com/build#/models/zipcode/48108/vehicle/CUT201707/ccode/CUT201707VF2L26A/llp/2TA/options/ERB,DG2,SDC,TWA,WCS,A7,Z2E,RH3,AA,PRP,21A,APA
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Old 06-18-2018, 03:15 AM   #7
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Quote:
Originally Posted by Oliver2017 View Post
What powers your portable a/c?
Almost forgot, I have a 12-110V 3,000 W inverter. Even a 1,000 W inverter should work with this 8,000 BTU unit, but it should be a pure sine inverter because most A/C units are picky about that.
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Old 06-18-2018, 03:26 AM   #8
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Quote:
Originally Posted by Knit View Post
Id get a two pipe one, though.
I have to think or read up on what the advantage of a closed circuit system would be. Right now I am not against some fresh air coming in.

This unit has its heat exchanger air inlet right below the outlet. If I want to convert it into a closed system all I have to do is cut a hole under the existing vent and seal it against the A/C unit.
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Old 06-18-2018, 03:40 AM   #9
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I am going to try to paint this ABS and PVC plastic vent white, see if the paint sticks.

https://www.amazon.com/gp/aw/d/B016614CPK

There are white round deck plates out there, bit I could not find any that were hinged. And I want a hinge so that I do not have to deal with finding a place to store a loose vent cover.
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Old 06-18-2018, 04:07 AM   #10
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Central AC systems in homes are the equivalent of two pipe systems. One pipe systems have to pull warm air from outside to work. So you have to condition outside air to stay cool. Two pipe systems are like the max AC setting on your car AC. But I like your idea even with one pipe.
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