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Old 02-13-2015, 12:15 PM   #11
Bus Crazy
 
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Join Date: Apr 2012
Location: So Cal
Posts: 1,962
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
Leadsled01, the a/c is actually suspended from the roof and supported at the rear on angle iron. The exhaust (hot air) vents from the rear of the a/c to an opening in the floor via a five foot long duct. The condensate also vents through the duct. The fan in the a/c seems to handle blowing the hot air down the duct without any problem even on the hottest days. Were there more space under the bus I would have split up the unit so the compressor and condenser was under the bus and the evaporator/blower was in the cabin--that would have been better looking I think.

Tango, I'll get at the insulation some day if I ever get the hydraulic jacks to stop leaking. Seems I got a bad batch of fittings as most of them have had to be replaced--messy and annoying to say the least. Jack

I used hardboard coated with shellac to form the duct.

This is a pic of the hanging bracket.

I took the a/c apart to reroute the drain.
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Old 02-13-2015, 01:36 PM   #12
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Join Date: Feb 2014
Location: Cuyahoga Falls Ohio
Posts: 372
Year: 1997
Chassis: Ford e-350 single wheel
Engine: 5.4 litre
Rated Cap: 12
I'm amazed that duct system works since hot air rises. But you have the proof. I like the idea of separating the A/C and mounting it in different spots , but I really don't know that much about cooling systems to pull that off. Guess I will have to save my money and buy a roof top RV unit. Again I love that bus of yours.
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Old 02-13-2015, 02:36 PM   #13
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Join Date: Apr 2012
Location: So Cal
Posts: 1,962
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
Ledsled01, before you go with roof air, consider doing what others like Lorna have done. It isn't too hard to mount a regular room a/c in or above the rear door and for the price of a new roof mount you can but 4 or 5 room units (Amazon). An 8 K room a/c should be enough for your shortie--even a 6 K might do. As I recall Tango is planning to do this also so you might want to talk with him. Jack
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Old 02-13-2015, 07:11 PM   #14
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Join Date: Jan 2015
Location: ...little north of Toronto Ontario
Posts: 450
Year: 2000
Coachwork: Thomsass
Chassis: Freightshaker
Engine: 5.9 cummins 5 speed
Rated Cap: 6 passenger 2 ATV's
Kick ass bus, stand up and take a bow.
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Old 02-13-2015, 09:39 PM   #15
Bus Crazy
 
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Join Date: Apr 2012
Location: So Cal
Posts: 1,962
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
Thanks for the compliments all. Redd and Bansil, you made me laugh. We are really having fun with the bus, Jack
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Old 02-14-2015, 11:00 AM   #16
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Join Date: Mar 2011
Location: Houston, Texas
Posts: 6,154
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
I am in total agreement with Jack regarding "RV" A/C --- Having owned a couple of them is what put me on the path to using a window unit in this build. As noted, you can buy a half dozen or more high efficiency window units for the price of one "RV roof mount". But price is just part of the story. There is that big, leaky hole in the roof...the need for grossly overpriced service (when you can find it)...during which there is that big open hole in the roof to contend with...the increased chance of a tree limb or such making said hole even bigger...and on and on.

I went with a little 8Kbtu, $160.00, Energy Star unit that I can replace in 10 minutes at any Wally World in America. And they can be fitted just about anywhere. Mine is going partially in the roof, but is well protected by the element below which just about any sheet metal shop can fab for a few bucks. A roof deck will eventually fit over the flat part. Admittedly, I invested a little extra time & $ to keep the Art Deco look going, but they can be easily installed into a rear window or above a rear door. There is a stainless steel vent hood filter just inside the opening to keep bugs and critter outdoors.



And for you fortunate folks with a basement in your bus...a much larger or even multiple units can be installed below deck and the air piped where you need it. No biggie.
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