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Old 04-29-2016, 01:06 PM   #11
Join Date: Mar 2016
Location: Cypress, Texas
Posts: 51
Year: 1996
Coachwork: International Thomas
Engine: DT466E
Rated Cap: 71
Oh! I also meant to ask if people don't care for the Dometic roof top units, do you guys have a better brand? The Colemans?
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Old 04-29-2016, 01:51 PM   #12
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Join Date: Feb 2014
Location: Arizona via Baton Rouge
Posts: 640
Year: 1999
Coachwork: Thomas
Chassis: Freight-shaker (Freightliner)
Engine: Cat 3126b 250 HP
Rated Cap: Only 1 seat
Just make sure your framework inside the hatch that you run your connecting bolts through are well sealed. Heat will come in and so will moisture when it rains and you are driving.
My build thread - viewtopic.php?f=9&t=467197
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Old 04-29-2016, 02:35 PM   #13
Join Date: Mar 2010
Location: Texas
Posts: 197
Year: 1997
Coachwork: AmTran
Chassis: Genesis
Engine: DT466
Rated Cap: 84
For generator, rather than Onan, you might want to look into a Power Technology generator. They are far better built, and they are more reliable.

PT-12KSiC | Power Technology Southeast Inc

I'm not sure I would go with one of those little yamaha inverter type units. Especially for powering rooftop air conditioning. The only downside is you are paying for the reliability and power quality of the Power Tech generator. The last quote I got for the 12kw unit (with 240volts) was $10,550 new.

Still, it sounds like you are trying to make a business out of this and going down because of lack of power isn't something you can afford, I figure.

As for the split units not holding up on a bus, I have yet to see any reports of this. Mind, I have yet to see many installs using mini-splits, either. It is what I plan to use on my bus, but that project has been delayed by life and other projects. Ah well. As always, good luck!
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Old 04-29-2016, 09:56 PM   #14
Bus Nut
Join Date: Aug 2010
Posts: 275
Year: 1995
Coachwork: Thomas
Chassis: International
Engine: 466DT
Rated Cap: 65
Originally Posted by HealthyPetsBus View Post
The two 1981 International Wayne buses do not have escape hatches but the 1996 International Thomas has escape hatches. Any advice about mounting a roof top AC through the escape hatches?
Filling in the escape holes, and adding the 2nd AC, was easier then cutting a hole in bus ceiling for my first AC. Just get some sheet metal and make it just bigger then the escape hole and original screw hole. I just tek screwed it down with elastrometric sealer then sealed the edges too. I suggest cutting your 14" hole before hand. Works slick. Here's couple pics. I filled both escape hatch holes, added AC in one, and roof vent in other. But both were done the same way.

20150417_124639 by Hvbuzz, on Flickr

20150417_125559 by Hvbuzz, on Flickr

20150417_170750 by Hvbuzz, on Flickr

I have two Dometic's. My first was a 15,000btu. Second one 13,500btu. The first is five years old now, and I haven't had any problems.
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