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Olli.D
Samba Member
Joined: May 10, 2020
Posts: 6
Location: Germany
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 Posted: Mon Mar 25, 2024 10:51 am Post subject: DIY aircondition and circulating cabin air stock heaterbox a/c |
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liked the idea to get the evaporator into the oversized stock heaterbox.
And the cabin air contror was i nice thing!
Condensation drain through the traverse to the front.
Now we have spring, not hot, but tha works like a charme.
There are 2 backflow flaps 50mm for the cabin air control.
Not too mouch, but half of air is enough, gettin more cold and hot.
For the air condition, there is a 2 spep switch comonated with the front cooler ventilator for the 1st and 2nd level of blower, that makes 2 temperatures of A/C. By the way, it is a JX engine, stinky diezel...
Just like to show you some pics.
The evaporator out of this universal part fits quite good:
a little modification on it:
in the heaterbox
The cabin air control:
Ready with shields
and one of the flaps
the blower resistor went right down, it is exchangable now.
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4Gears4Tires
Samba Member
Joined: October 08, 2018
Posts: 3061
Location: MD
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| Posted: Mon Mar 25, 2024 10:55 am Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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Very cool. Pics of the rest of the system?
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ALIKA T3
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Joined: July 30, 2009
Posts: 6367
Location: Honolulu,Hawaii and France
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17158
Location: Retired South Florida
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| Posted: Mon Mar 25, 2024 12:14 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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How does the expansion valve attach to the evap core? Well executed. Is it enough to cool the entire van or just up front? Our vintage air dash unit doesnt really cool the rear. Pretty sure it is undersized compared to the factory camper evaportator.
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djkeev
Samba Moderator
Joined: September 30, 2007
Posts: 32647
Location: Reading Pennsylvania
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Howesight
Samba Member
Joined: July 02, 2008
Posts: 3274
Location: Vancouver, B.C.
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| Posted: Mon Mar 25, 2024 5:12 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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Dave, the poster has a few more pics in his gallery which make the layout of the box a little more clear. I am guessing that the stock heater core will still be used. Some of his pics in the post above show the box upside down, and make it appear that the evaporator is located where the heater core should be, but it's just the photography that inititially gives that impression.
This is very nice work by a person very skilled in fabricating. I am waiting to see more pics and more explanation. The ambient air flaps are a very nice fabrication.
For comparison, see my janky approach:
Janky Howesight attempt  :
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Vanagon Nut
Samba Member
Joined: February 08, 2008
Posts: 10379
Location: Sunshine Coast B.C.
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| Posted: Mon Mar 25, 2024 5:47 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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That is some really nice fabrication - brazing work. Wow.
Looking forward to more on this.
Neil.
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dhaavers
Samba Member
Joined: March 19, 2010
Posts: 7758
Location: NE MN (tinyurl.com/dhaaverslocation)
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| Posted: Mon Mar 25, 2024 7:04 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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Ja, very cool! 
- Dave
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"The WonderVan"
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Olli.D
Samba Member
Joined: May 10, 2020
Posts: 6
Location: Germany
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| Posted: Mon Mar 25, 2024 11:24 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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| djkeev wrote: |
So....... what are you doing for heat?
That looks like your entire air box is now Air Conditioning. |
Wow, no, we are in a cold area 
The standard heater-core is still in use at the same place. View the pics and you see the heater hoses.
Just 3 or 4 days/year, we need the a/c. But i worked for the future, when we get palms and hot stuff.  |
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Olli.D
Samba Member
Joined: May 10, 2020
Posts: 6
Location: Germany
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| Posted: Mon Mar 25, 2024 11:30 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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Let me show the condensat drain:
And here you see the the connected wire for the cabin air control/circulating air.
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Steve M.
Samba Member
Joined: July 30, 2013
Posts: 6833
Location: Fort Lauderdale, Fl.
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| Posted: Tue Mar 26, 2024 3:31 pm Post subject: Re: DIY aircondition and circulating cabin air stock heaterbox a/c |
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Game changer! Good on you.
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