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Old 03-22-2017, 10:27 AM   #1
Rivet Master
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2017 26' Flying Cloud
Tampa , Florida
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New model A/C

Hopefully a simple question for the experts.

In a new AS if I opt for the 30 amp service, it states it's a single 15,000 btu. AC unit. Okay. (FC 26U)

If I opt for the 50 amp service it becomes a 13,500 btu AC in the second position.

What isn't clear is it now (2) 13,500 btu units or the standard 15,000 and a 13,500 unit?

(I'm thinking generator purchase)
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Old 03-22-2017, 10:31 AM   #2
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2014 27' FB Eddie Bauer
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When you order the two AC units trailer (with 50 amp service) the main AC unit in the kitchen/living area will be a 15,000 BTU unit and the one on the bedroom will be a 13,500 BTU model. I suppose you could special order two 15,000 BTU units if you wanted. A generator that can run both AC units at the same time will be a whopper! Make sure you have plans for how you are going to move it or install it more or less permanently in your truck.
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WBCCI# 5766
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Old 03-22-2017, 10:43 AM   #3
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Alamo Heights , Texas
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Speaking of generators in trucks... another difference between the 30A and 50A setup is that if you order a 50A trailer I don't believe you get the 2nd shore-power input on the front of the trailer, which is convenient for powering from a generator in the back of your truck. Of course, that would also mean you forego the sometimes-problematic automatic input switch.

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Old 03-22-2017, 10:46 AM   #4
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AC are designed to do 2 things. Reduce temperature and reduce humidity.

Humidity takes longer to reduce and is the more significant consideration in air conditioning. You can be comfortable at 80 degrees with low humidity. You can not be comfortable at 72 degrees with high humidity.

If I were to order a unit with 2 AC I would consider 2 smaller units. The only reason I would opt for the larger unit in the front is if I camped often where 30 amps was the only power available.

In a past life I was in charge of the facilities at a school. The original building had a 5 ton AC unit per classroom. As they died I replaced them with 3 ton units to improve the comfort in the classroom.
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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Old 03-22-2017, 10:53 AM   #5
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I also called a dealer and he had to go to the book.
He verified what AnnArborBob said, a 15 and a 13,500.
No, I didn't plan on running both from a gen, but I wondered which was a 13,500, or if it became both, and it's the bedroom. (a 3000w. gen won't run a 15K AC)

DKB SATX, yes, the 30 amp plug on the front is a stroke of genius, IMO. I was told a woman came up with the concept. It goes away with the 50 amp service

So, I guess there's a bunch of folks running their single 15,000 btu units off 3000w. gen sets, although it probably shouldn't work.
(Yes, I read all the posts praising the MicroAir Easy Start)

Originally Posted by HowieE View Post
You can not be comfortable at 72 degrees with high humidity.
I live in Florida. Come here in August when it's 95 degrees and 80% humidity.
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