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Quiet(er) AC

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Volkemon

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Quiet(er) AC
« on: August 07, 2018, 06:33:26 pm »
I did try to search this topic, but the site search engine returned all words with 'ac' in them...   pyho 


This weekend we did an overnight and ran the AC for ~19 hrs. No drips while running, but when I turned it off....  :-[  Water running out of it. Maybe a cup or so, but flowing off/out of the control knobs   :beg  :help Glad the new vinyl floor just needed a quick towel.

Mrs V is not confident in the coach AC.   :cool

Sooooo....  I am taking that AC out to verify all is well mechanically.  We were buying a new AC for the Phoenix Carrier trailer anyway, so now the plan is to get a new quiet(er) AC and install in the coach, and put the Dometic in the Carrier. The Dometic is a relatively new replacement to the coach, before our ownership.

The Dometic is not ALL that noisy, considering its operating environment. But hey... if we can upgrade...

Thoughts?

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hutch42

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Re: Quiet(er) AC
« Reply #1 on: August 07, 2018, 09:16:31 pm »
A few folks over on the Winnebago View and Travato sites have purchased this replacement.  Quite$$$

https://advanced-rv.com/quiet-air-conditioner-install-retrofit/
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Volkemon

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Re: Quiet(er) AC
« Reply #2 on: August 08, 2018, 03:57:24 am »
Quote from: hutch42 on August 07, 2018, 09:16:31 pm
A few folks over on the Winnebago View and Travato sites have purchased this replacement.  Quite$$$

https://advanced-rv.com/quiet-air-conditioner-install-retrofit/

Thanks!

I had seen that thread, and it seems to indicate that one can only get the unit by having it installed by Advanced RV

Do you know of another source to get this unit?
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ExStarlifter

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Re: Quiet(er) AC
« Reply #3 on: August 08, 2018, 07:28:58 am »
We live in the South and frequent the Gulf Coast so two AC units in our 2910D was a requirement.  I have to admit we were taken back by the high level of noise.  During the delivery, we played with the AC units attempting to find a way to deal with the noise.  We finally came up with operating both units initially to cool the whole coach down (all shades down), then switching to the unused area unit after the coach cooled.  For example, if we were in the living area, we ran the bedroom unit with side and rear vents closed.  At bedtime, we ran the living area unit with front and side vents closed and the rear vent open.  Yes, it was still louder than any AC unit we have had on an RV, but it is do-able.  We had two large units on our Tiffin 36LA and still found it necessary to run both units at the beach and while not as loud as these, they were loud.  We are headed down there next month so anxious to see how this is going to work out.  Will update.

Mike
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hutch42

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Re: Quiet(er) AC
« Reply #4 on: August 08, 2018, 09:35:16 am »
At this point I believe your right about having to go to the shop in Cleveland!
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Volkemon

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Re: Quiet(er) AC
« Reply #5 on: August 08, 2018, 10:34:08 am »
Quote from: ExStarlifter on August 08, 2018, 07:28:58 am
We live in the South and frequent the Gulf Coast so two AC units in our 2910D was a requirement.  I have to admit we were taken back by the high level of noise.  During the delivery, we played with the AC units attempting to find a way to deal with the noise.  We finally came up with operating both units initially to cool the whole coach down (all shades down), then switching to the unused area unit after the coach cooled.  For example, if we were in the living area, we ran the bedroom unit with side and rear vents closed.  At bedtime, we ran the living area unit with front and side vents closed and the rear vent open.  Yes, it was still louder than any AC unit we have had on an RV, but it is do-able.  We had two large units on our Tiffin 36LA and still found it necessary to run both units at the beach and while not as loud as these, they were loud.  We are headed down there next month so anxious to see how this is going to work out.  Will update.

Mike


I can imagine some of the standing wave and resonance issues operating two units in/on an RV!  :beg 

I see you have a newer coach. What make/model AC do they use?


PS - by your username, I am guessing you are familiar with C-141's... I was briefly a MP at Pease AFB and had a chance to ride in those and the KC-130's back in the 80's. Amazing craft.
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Ron Dittmer

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Re: Quiet(er) AC
« Reply #6 on: August 08, 2018, 10:55:03 am »
Our 2007 Dometic Penguin a/c unit is also quite loud.  You would think the manufacture would have made some improvements to that over the years.

I want to share a story about my brother's motorhome.  His roof a/c unit was exceptionally loud.  He took his rig in for "other" service which included replacing his a/c cover from hail damage.  The service technician noticed his a/c unit had become loose from the roof.  After being tightened-down his a/c has been much better....less loud.
« Last Edit: August 08, 2018, 10:58:36 am by Ron Dittmer »
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Volkemon

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Re: Quiet(er) AC
« Reply #7 on: August 08, 2018, 11:44:09 am »
Quote from: Ron Dittmer on August 08, 2018, 10:55:03 am

The service technician noticed his a/c unit had become loose from the roof.  After being tightened-down his a/c has been much better....less loud.

 (exactly) THATS why I do my own work. I have read other threads about internals vibrating, brackets craked, etc. I am going to be installing both A/C's 'piecemeal' - install enough to make it run, then run for a few hours. Inspect, check, find rattles, leaks, etc.  Then when all is a 'go' finish installing the covers.

The basic mechanics of an AC unit may make it difficult to impossible to get quiet. 2 fans (one motor) and a compressor in ~8 square feet... in the middle of a 'drumhead' (wide roof area).  I would be interested in finding what makes the one exStarlifter referred to quieter. Does not seem to be much technical info.
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CalCruiser

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Re: Quiet(er) AC
« Reply #8 on: August 08, 2018, 02:11:28 pm »
Your condensation issue should be a simple fix.
First remove the outside cover/shroud and clean out any debris from the drip pan, making sure the drain hole to the outside of the roof is open. Then check to see if someone used silicone around the opening instead of a gasket.
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ExStarlifter

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Re: Quiet(er) AC
« Reply #9 on: August 09, 2018, 07:32:13 am »
Quote from: Volkemon on August 08, 2018, 10:34:08 am
Quote from: ExStarlifter on August 08, 2018, 07:28:58 am
We live in the South and frequent the Gulf Coast so two AC units in our 2910D was a requirement.  I have to admit we were taken back by the high level of noise.  During the delivery, we played with the AC units attempting to find a way to deal with the noise.  We finally came up with operating both units initially to cool the whole coach down (all shades down), then switching to the unused area unit after the coach cooled.  For example, if we were in the living area, we ran the bedroom unit with side and rear vents closed.  At bedtime, we ran the living area unit with front and side vents closed and the rear vent open.  Yes, it was still louder than any AC unit we have had on an RV, but it is do-able.  We had two large units on our Tiffin 36LA and still found it necessary to run both units at the beach and while not as loud as these, they were loud.  We are headed down there next month so anxious to see how this is going to work out.  Will update.

Mike

Yes - Norton AFB/1976 to 1981, instructor and check pilot.  We ordered and picked up a 2910D in June.  Love it!


I can imagine some of the standing wave and resonance issues operating two units in/on an RV!  :beg 

I see you have a newer coach. What make/model AC do they use?


PS - by your username, I am guessing you are familiar with C-141's... I was briefly a MP at Pease AFB and had a chance to ride in those and the KC-130's back in the 80's. Amazing craft.
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Volkemon

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Re: Quiet(er) AC
« Reply #10 on: August 09, 2018, 10:38:03 am »
Quote from: CalCruiser on August 08, 2018, 02:11:28 pm
Your condensation issue should be a simple fix.
First remove the outside cover/shroud and clean out any debris from the drip pan, making sure the drain hole to the outside of the roof is open. Then check to see if someone used silicone around the opening instead of a gasket.

 I am hoping it will be a simple solution. It does drain, just fine, while running. We had it on for ~18 hrs, and not a drip. Huge puddle on the concrete, and it was draining. It was at shutoff the flood began. I am imagining that perhaps there is a place water is being retained. that the airflow keeps the water 'up'. When the airflow stops, water flows.

We had the AC running for several days in the driveway, and this didnt happen. The only notable difference is that we were sleeping inside, being human humidifiers, and there was a soaking wet bear suit we had hanging inside. (fear of it getting stolen outside  (WH) ), I sweated a gallon wearing it for ~1hr in FL heat. I am the purple bear on the left.  roflol


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donc13

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Re: Quiet(er) AC
« Reply #11 on: August 09, 2018, 11:16:24 pm »
Are you dancing to Uncle John's  Band?
Patti
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ExStarlifter

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Re: Quiet(er) AC
« Reply #12 on: August 10, 2018, 07:03:39 am »
We are running both AC units or one at a time during visits to the coach while it is in covered storage.  It's hot and humid enough in the storage facility to produce condensation water quickly.  Unlike our Class A which ran water down the side the coach or down the cab windows, our 2910 has the condensation water channeled out and away - looks like someone thought about this before they installed it.  It's nice not to have water stains on the windows!

Mike
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Volkemon

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Re: Quiet(er) AC
« Reply #13 on: August 10, 2018, 06:17:31 pm »
Quote from: donc13 on August 09, 2018, 11:16:24 pm
Are you dancing to Uncle John's  Band?
Patti

No, they are in the Tampa area. :)  https://unclejohnsband.com/ 



Unlimited Devotion was the band honoring Jerry. Out of Boca Raton, but three members come over from Tampa Bay area.  (WH)

I am dancing at the end, the children loved it.   At  1:42:45    then on stage getting the encore 1:55:00

https://www.youtube.com/watch?v=cdz6f8zgbx0




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HenryJ

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Re: Quiet(er) AC
« Reply #14 on: August 10, 2018, 08:21:37 pm »
When we were at the plant n July last year and had several things attended to the AC was one. We stayed over another day to see their call in AC man. He did some work on one unit that had things all wrapped where they should not have been and made adjustments and it helped. Our unit in front would go on and off and right back on again. He did settle that. The only decent AC we had in a RV was 08 National that had basement AC that was wonderful and quiet. After that it was all noise. The Allegro Bus with all the lines in the roof was terrible. Noisy as can be and no fix. But the only cure is camping in winter it seems. My hearing on one side is not good so I try not to concentrate on the noise. So far we are glad for the AC and in ours there is 2... on generator power we only run one for dog comfort.
Luv P
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