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Old 07-08-2014, 07:34 PM   #113
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Thanks for the numbers, Terry. I admit that I like the looks of the ducted units, but surely wouldn't spring for a 2015 model just for this feature --- even if it just WHISPERED at me.
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Old 07-08-2014, 07:56 PM   #114
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I did it for the new tank sensors...


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Old 07-08-2014, 08:00 PM   #115
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Not so fast - decibels are perceived almost logarithmically. +\- 3db can be VERY noticeable...

Overlander63 - thanks for the numbers. How did it sound to you? Any perceivable difference?
It was much quieter in the bedroom area. I think part of any further perceived reduction in noise is because the noise is muffled, rather than a fan blowing.
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Old 07-08-2014, 08:09 PM   #116
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Overlander, I just ordered a 30' FC bunkhouse. Please make up new data so I don't have to shoot myself.


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Old 07-09-2014, 12:05 AM   #117
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Okay, I just performed the same test in the same location in the ducted 27, and the results may suprise some people.
Front (bedroom)- 50db
Center (under the a/c)- 61
Rear (dinette)- 57
Doesn't sound like that difference is hearable. I will post our relative results next week as well. Speaking with the region rep for AS today, I was told that the ducted also evens out the temperature inside the AS.
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Old 07-09-2014, 04:52 AM   #118
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I was told that the ducted also evens out the temperature inside the AS.
That it does well. There are also now ducts in the lavatory area, so the bathroom is no longer stifling.
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Old 07-10-2014, 03:05 AM   #119
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Well, it seems to be very quiet once the temperature is stable.... An amazing 60 dB. It is really not noticeable after a short time whereas the 2009 27 FB International A/C was very loud when it kicked in.
An interesting observation... Each unit sees to be delivering air to both ends of the trailer. I will investigate this more fully once power is restored here in Virginia Beach, Virginia....LOL


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Old 07-10-2014, 09:05 AM   #120
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On a 30' is there still an option for a second a/c in bedroom or does ducted system eliminate that option and if it is available is it ducted? Our 30' has two and I can't see any way one unit would cool sufficiently in hot humid Florida. Been there with a 25' and 13 didn't get daytime temps down to a comfortable level.
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Old 07-10-2014, 09:49 AM   #121
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I had 30amp only at Top Sail in mid May this year on my 30' bunkhouse...the 15K BTU AC unit pretty much had to run most of the time to get temp to 72-74 degrees, even with all awnings deployed (including streetside)...temps were not yet in the 90's at that point...no way jose, ya need two if you plan on camping in FL...esp once temps are upper 80's and above...now 80's and 90's back in my home town in VA are much more comfortable...never needed AC in our own home hardly growing up..fan in my window
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Old 07-10-2014, 10:56 AM   #122
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My new 2015 will have ducted air and 2 A/C units...


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Old 07-10-2014, 11:58 AM   #123
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My new 2015 27FB Serenity will have ducted air and 2 A/C units as well. The ducted air change for 2015 has no impact on the 2nd A/C option.
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Old 07-10-2014, 01:04 PM   #124
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Thanks. I was wondering if it would be ducted. Two units are a good thing to have. Congratulations on your new A/Ss.
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Old 07-10-2014, 07:51 PM   #125
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Two a/c's are good with ducted air. You can run the one furthest away from you, and still get the cool air through the ducts. If it does get too warm, you can crank up the second one.
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Old 07-11-2014, 01:26 AM   #126
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As noted, one A/C in southern climates during intense summer heat is not adequate. My 2009 27FB had this problem. And the new system has two vents into the bathroom as was pointed out by Overlander.
What I have done is program the rear unit to go on at 8AM, off at 11PM. Thus, during the night only the front unit comes on, even quieter this way.


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