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Old 07-13-2011, 09:07 AM   #1
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AC replacement-options, options...

I have recently acquired a 21' 73 Globetrotter. The rooftop AC looks to be the original unit, built by Armstrong. I was optimistic that it might be repairable, but I can't get so much as a hum or buzz from it, even wiring directly to the fan and compressor. I figure with all of the other usual issues (rotting floors, leaking windows, non-working appliances), I'll just go ahead and replace the AC with a modern unit.

From reading other posts, it looks like the Penguin Duotherm is one of the only units with a drain pan compatible with my current internally plumbed condensate drainage. True?

I was originally leaning very much toward a low current draw unit (like the Coleman mach III), as I wanted the option in the future of running the unit off of a small generator. I haven't found a unit that is both low profile and low current draw. I am sure the low profile will look more aesthetic. Any recommendations?

Finally, I currently live in Houston, and most of my near-term travel will probably happen in the southern states. I figured a 13.5 BTU AC would be more than adequate for a trailer this small, plus with a larger unit, I give up the option of low current model. Any thoughts on sizing?
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Old 07-13-2011, 09:48 AM   #2
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Quote:
Originally Posted by Belegedhel View Post
I have recently acquired a 21' 73 Globetrotter. The rooftop AC looks to be the original unit, built by Armstrong. I was optimistic that it might be repairable, but I can't get so much as a hum or buzz from it, even wiring directly to the fan and compressor. I figure with all of the other usual issues (rotting floors, leaking windows, non-working appliances), I'll just go ahead and replace the AC with a modern unit.

From reading other posts, it looks like the Penguin Duotherm is one of the only units with a drain pan compatible with my current internally plumbed condensate drainage. True?

I was originally leaning very much toward a low current draw unit (like the Coleman mach III), as I wanted the option in the future of running the unit off of a small generator. I haven't found a unit that is both low profile and low current draw. I am sure the low profile will look more aesthetic. Any recommendations?

Finally, I currently live in Houston, and most of my near-term travel will probably happen in the southern states. I figured a 13.5 BTU AC would be more than adequate for a trailer this small, plus with a larger unit, I give up the option of low current model. Any thoughts on sizing?
Just speaking for myself, I'd be less concerned with looks than functionality. Low-profile is nice, but low-current is better because for a given BTU capacity, you achieve low current by building a more efficient system.

Oh, and last night at 22:00 it was still over 90F here in north TX, so the REAL requirement is "AC that works!"
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Old 07-13-2011, 09:54 AM   #3
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"internally plumbed condensate drainage"

This is a plastic tube. It will fit any AC drain pan. Once you pull the old AC...you will be pulling it ALL. Your new AC will have everything to set in and hook up to the elec. and drain. For just a few dollars more...maybe no more if you shop around...get a 15000. You will need it in Texas.

A low profile will do great and looks better on an Airstream. Forget about your worries about the generator. What you will need will cover any small draws. Don't obsess on things like that.

If you in Houston area...check out Palomino.
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