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Old 06-11-2016, 08:17 PM   #1
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Roof air conditioner noise

Are the air conditioners in the newer Class A's quieter than the older ones?
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Old 06-11-2016, 09:44 PM   #2
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Not necessarily. �� Sore subject for lots of RVers, even those who've spent a small fortune on their coaches.
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Old 06-11-2016, 10:02 PM   #3
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Originally Posted by ABrask View Post
Not necessarily. �� Sore subject for lots of RVers, even those who've spent a small fortune on their coaches.

ditto
my new 15,500 units are a bit louder than the carriers they replaced, but it has been softened a bit with foam and ensuring everything that can wiggle is supported with cushion clamps
and i have done like others and tried to make the intake air route is as smooth as possible
right now on high fan about 4 feet away it reads 55 db, at the intake it reads 63
that falls in the CONVERSATION range??
the rumbly noises i softened with a few screws in the outside cover that was flapping around.
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Old 06-12-2016, 08:01 AM   #4
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My 3 are quieter. No visible under AC panels. All ducted. Cleaner looking ceiling. High efficiency units pull only 8 amps x 3 = 24 amps so less than 30A! 2 front units are heating pumps.
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Old 06-12-2016, 10:39 AM   #5
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Agree with Powerboatr. I spent several hours cleaning up the poor workmanship and flow restrictions in the duct work for a notable improvement. I assume that since it is out of sight to the buyer they are not concerned with the mess and rough-cut passages they leave.
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Old 06-12-2016, 11:07 AM   #6
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Are the air conditioners in the newer Class A's quieter than the older ones?
Do you mean quieter inside or outside? Inside is a lot quieter with the fully ducted design that doesn't have the large intake grill panel visible. Several manufacturers have gone to this design to give a smoother looking ceiling and reduce noise. Outside, the original low profile Coleman Mach 8 units used a six blade condenser fan that is extremely loud. They have been redesigned with a three blade fan that is much quieter, but make sure they are revision "D" blades as the first ones were susceptible to flying apart.
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