What roof top air conditioner are you using? - Ford Transit USA Forum
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post #1 of 40 (permalink) Old 01-03-2017, 11:06:AM Thread Starter
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What roof top air conditioner are you using?

What roof top air conditioner are you using? Are you happy with it? Is it reliable? How noisy is it? How long have you had it? ETC....

I've read multiple accounts of people running air conditioners in non insulated van's. I don't think it makes any difference whether or not you heating or cooling, the benefit of insulating is to reduce the flow of BTU's between the outside and inside of the van--and for sound dampening.

If a 13,000 BTU cooler were quieter than an 11,000 BTU cooler I would want to go with the larger one and just run it on low. Someone posted a Promaster heat loss calculator spreadsheet but I couldn't find the link.

Reliability is a big one. I've heard bad reports on the low profile units but that could just be that people that have bad experiences make more noise. People that are happy don't say anything.
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post #2 of 40 (permalink) Old 01-04-2017, 01:50:AM
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Talking

"Roof top air conditioners? We ain't got no roof top air conditioners. We don't need no roof top air conditioners. I don't have to show you any stinkin' roof top air conditioners!"


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post #3 of 40 (permalink) Old 01-04-2017, 02:42:AM
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my only roof top air experience: Coleman Roughnecks, i have installed dozens of them in heavy truck applications in the last 40 years, and only ones i had to fix were ones more then 5 years old, and then it was usually something simple like a broke off control knob or add R134 gas to them. they are a bit overkill for the ford transit that never leaves the highway. but if you want the best... http://www.rvproductsshop.com/colema...nditioner.html

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post #4 of 40 (permalink) Old 01-04-2017, 01:53:PM
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I recently installed a Coleman Mach 8. It was the lowest profile unit I could find. I have only run it a few times, mostly for testing, so I can't say anything about its reliability. It is not exceptionally noisy, but I find it hard to imagine a rooftop A/C unit that is quiet. IMO, if you have to sleep with the A/C on, it is best to avoid quiet campgrounds and accept the sounds as white noise. A larger diameter fan will generally be quieter than a smaller fan and this A/C has about as big of a fan as can fit in the form factor.
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post #5 of 40 (permalink) Old 01-04-2017, 02:55:PM
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Most europeans use this system https://www.webasto.com/int/markets-...systems-18-kw/


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post #6 of 40 (permalink) Old 01-04-2017, 07:06:PM Thread Starter
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With a well insulated van it shouldn't take a lot to cool it off. The Colman Mach 3 PS looks to be one of the most efficient air conditioners but it is a little taller. The Webasto look interesting but I couldn't find any outlets in the US.

Do all rv air conditioners continually run the fan?

BabyBuffy, thanks for the link. Gary has done a lot of work on his website and has valuable information. It's his spreadsheet that I have been working with.
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post #7 of 40 (permalink) Old 01-04-2017, 11:43:PM
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I have extensive RV experience. Todays RV rooftop units are made almost exclusively by Dometic. They now feature rotary instead of piston compressors, and have some pretty snazzy "soft start" technology, using larger and better capacitors and staggered fan/compressor startup.

I have fed a 10K unit with my Honda 2000EU..... it wasn't pretty, but once it was running it was no big deal

For a properly insulated Transit 5000BTU should be plenty.

Now, for something completely different I plan on installing a free standing residential unit and building it into a nicely camouflaged compartment.


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post #8 of 40 (permalink) Old 01-05-2017, 02:50:AM
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Originally Posted by oscarvan View Post
Now, for something completely different I plan on installing a free standing residential unit and building it into a nicely camouflaged compartment.
boating equipment could make something like that easy. http://www.westmarine.com/fixed-mount-air-conditioners

myself i have a 14,000 btu 2 hose portable air conditioner vented thru the floor that so far seems to work good, but i worry pot holes may self destruct it

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post #9 of 40 (permalink) Old 01-05-2017, 09:00:AM Thread Starter
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Originally Posted by oscarvan View Post
I have extensive RV experience. Todays RV rooftop units are made almost exclusively by Dometic. They now feature rotary instead of piston compressors, and have some pretty snazzy "soft start" technology, using larger and better capacitors and staggered fan/compressor startup.

I have fed a 10K unit with my Honda 2000EU..... it wasn't pretty, but once it was running it was no big deal

For a properly insulated Transit 5000BTU should be plenty.

Now, for something completely different I plan on installing a free standing residential unit and building it into a nicely camouflaged compartment.
Do you have an opinion about the Colman Mach 3 PS? Or the Dometic Penguin II?
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post #10 of 40 (permalink) Old 01-05-2017, 06:37:PM Thread Starter
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I've read several comments about people setting up mini split air conditioners. Looked into it a little today. Here is one that is 31 inches wide. I believe this would fit on the back door If the door was ordered in with no glass. A cage of some kind could be made to disguise the compressor unit and protect it. What do you think? http://www.pridiom.com/landmark.php
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