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Old 03-23-2020, 12:38 PM   #1
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1977 31' Sovereign
Lake Worth , Florida
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Need A/C info

I just bought a project and need to replace the air conditioner. I have a 1977 Sovereign 31' and need to know a few things. Do I need a specific ac unit for this? The original was a 13,500 BTU, is that enough or should I go larger? Any specific brand better?


Thanks for any help
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Old 03-23-2020, 01:36 PM   #2
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I am not an AC specialist but you may be able to measure the opening and go from there. Can always widen the opening. But thatís a whole project all in itself. If youíre not widening then that bad boy is going to restrict your options. Once you have the opening size you can look at all of your modern options that will fit that size and choose the best BTU from there
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Old 03-23-2020, 01:42 PM   #3
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1986 31' Sovereign
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If it doesnít cost significantly more, then I would recommend a 15k BTU unit. We have a single 13.5k on our 1986 31í and it struggles when the temp outside is above 90.

If you are installing a new Dometic, which uses cups to catch the condensate, be sure to order and use TWO gaskets so you donít damage the cups when you cinch down the a/c.
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Old 03-23-2020, 01:43 PM   #4
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Going with a rooftop RV air conditioner the newer ones, at least, all fit in the same size opening which, I think, is 14x14 inches. Depending on your camping area, a 15,000 BTU unit might be the best bet. I have a 13,500 unit in my Classic 30 and, living in Florida, would like to have more capacity either in the form of a bigger unit or another unit in the bedroom.

Choices are limited. Dometic has several lines. Search the AC subforum on here to get an idea of what people like and don't like.

Al
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Old 03-23-2020, 02:03 PM   #5
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Back in 2004 when I ordered my 31' Classic SO. 13.5 K was the standard. 15K units were optional and when placing my order I went for the 15K unit. I never have regretted that choice.

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Old 03-24-2020, 12:05 PM   #6
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1977 31' Sovereign
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Awesome, thanks everyone.
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