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Old 07-11-2015, 05:02 PM   #1
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Where would you put a 2nd A/C unit?

We have the 15K A/C and we've put reflective material in all the skylights, insulation pillows in each of the 3 ceiling vents and an effective shade in the cab windows. But the A/C isn't keeping up.

It's 95 here (and is most days in the Summer in South Texas). This morning the RV was a cool 70 degrees. As it's heated up outside the interior temp is up to 76 even with the A/C running full blast all day.

Seems a 2nd AC unit is called for.

I can't decide whether to put a a little 8.5K BTU A/C unit in the bedroom where the ceiling vent is -- or put a 13.5 K BTU A/C unit in the living room up front where the Fantastic Fan is.

Has anyone undertaken this project? Where does the factory install a 2nd A/C in a 3051 or similar sized RV?
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Old 07-11-2015, 05:12 PM   #2
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Only 76 degrees inside at 95 outside. Sounds cool enough to me. Later RJD
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Old 07-11-2015, 05:17 PM   #3
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bedroom is common...be nice to save the fantastic fan for those days to just turn over air. you may want that extra light there too. I guess sound would be the main concern and if that would a concern. I usually run surface mount to get the power there. I have no idea if your prewired. I have not done your model coach.
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Old 07-12-2015, 12:09 AM   #4
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Quote:
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be nice to save the fantastic fan for those days to just turn over air.
We'd save the Fantastic Fan, just put it in one of the other locations, that's all.
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Old 07-12-2015, 01:22 PM   #5
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Had a 2nd 13.5 in a Tioga. It was in the front fantastic fan spot and was not ducted. Needed to be installed where the roof was already supported. 30 Amp would not carry both ACs. Generator was oversized to carry both and they could only both be run on gen.
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Old 07-12-2015, 01:34 PM   #6
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That's good info - I hadn't considered the power/gen wattage issues.

We put up some of the reflective bubble wrap style sheeting in the back window in the bedroom. That has helped a bunch. LOTS of Sun/heat comes in there even with the shade down.

Maybe it's a good place for an MCD blackout shade. I'd rather have an effective shade on a roller than a big piece of reflective insulation in the back window.

We blocked off all of the skylights/fans except the one in the shower with that reflective insulation material. We kept those shades closed anyway. So, putting the insulation in there and closing the shades keeps out a ton of heat and makes the RV more comfortable.

The RV was at 70 degrees this AM. It's almost 1pm and with the A/C running non-stop it's risen to 72 degrees. It's about 90 outside with a high of 97 expected.

Living in South Texas we limit all of our RV trips to Spring, Fall and Winter. But we're taking the RV for further shake down this week to a State Park 90 miles away.
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Old 07-12-2015, 01:54 PM   #7
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You can add a second unit and run a cord to your electrical area for storage and just plug it into the 120V on the campground box. This will not have any effect on your 30A. I would go with the 13.5K. CW has them on sale for lees than $700
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Old 07-12-2015, 01:59 PM   #8
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Send a message via Yahoo to bob caldwell
Or, save yourself the grief and install in mine!
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Old 07-12-2015, 02:29 PM   #9
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If most of your camping is as you said why bother for one time? seems a waste. Later RJD
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Old 07-12-2015, 06:40 PM   #10
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If most of your camping is as you said why bother for one time? seems a waste. Later RJD
You can't count on lower temps in those supposedly cooler months. I've seen it over 100 in February, believe it or not. We'll probably not do anything until we've seen how it RV stays cool over a typical year.
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