SkiingSixPack
Minnesota
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Joined: 02/17/2005
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We leave ours on the AC/HI setting for the fan and adjust the temp dial. This has worked well for 2 years. Now, we do not get the extreme temps that others have. Hottest was in the 90s with dew points in the low 70s.
Reflectix insulation is great in hot and cold months.
We also cut some to fit the vents in the ceiling.
We adjust the temp down when sleeping. My wife sometimes complained that the cycling on and off bothers her at night. However, late last summer we stayed at a place that had a petting zoo and our camping friends in their pop-ups were up at 5:30 AM (kids up also) due to the rooster. Everyone seemed a bit grumpy that morning.... except us. My DW and kids slept until 8:30. LOVE THAT WHITE NOISE! She hasn't complained since! LOL
* This post was
edited 07/01/09 07:13am by SkiingSixPack *
My much better half 
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69RoadRunner
VA
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Joined: 01/18/2008
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M GO BLUE wrote:Kerri wrote:So I leave the fan on and leave it in the Hi postion?
Kerri
When you turn the AC on set the fan on high and automatic and leave it...
I can set mine on high or automatic, but not both. I set it on automatic, except when I was trying to drown out the sound of the refrigerator door alarm that wouldn't shut off (until the circuit board was replaced).
09 Newmar Ventana 3942
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Intheloonybin
Twin Cities, Minnesota
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Joined: 08/19/2006
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As long as your A/C is running correctly (meaning it does not freeze up on low);
If you run the fan on high, it will drop the temperature more quickly in the space, but not dehumidify as well.
If you run the fan on low, it will dehumidify the space much quicker, but not drop the temp as fast.
If you are in a dry climate, choose option #1. If you are in a humid climate, choose option #2.
Or choose the one YOU prefer.
This applies to ALL air conditioning. House, car, rv, etc...
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2001 Chevy silverado 5.3 V8 1999 Coleman Niagara
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Back to school. Now for fall/winter camping!
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M GO BLUE
Southgate, MI
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Joined: 01/29/2001
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69RoadRunner wrote:M GO BLUE wrote:Kerri wrote:So I leave the fan on and leave it in the Hi postion?
Kerri
When you turn the AC on set the fan on high and automatic and leave it...
I can set mine on high or automatic, but not both. I set it on automatic, except when I was trying to drown out the sound of the refrigerator door alarm that wouldn't shut off (until the circuit board was replaced).
High is for the fan setting...automatic is for the cycling (on/off when called for)
ERIC & BEV
2005 Chevy Silverado 3500 dually CC/LB Duramax/Allison
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wa8yxm
Wherever I happen to park
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Joined: 07/04/2006
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I have heard the line about "Low causing freezup" and frankly I do not believe it
I run mine on HIGH, why?
Well it is true that that constant drone of the fan is louder on HIGH than on low, it's also constant, more or less, and my mind can quickly "Block it out".. It also masks other noises from outside the rig, so as to make them less annoying.
Now if you set it on AUTO, then it comes on and off with or just ahead of/behind the compressr, this means you have silence/loud noise/silence/loud noise and that is very very vary annoying.
Nothin adds excitment like something that is none of your business
Kenwood TS-2000 housed in a 2005 Damon Intruder 377
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smthbros
Ft Atkinson,WI
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Joined: 02/15/2004
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Intheloonybin,
I understand that lower cfm thru the evap promotes latent heat removal and higher cfm thru the evap promotes sensible heat removal, but we are also changing cfm thru the condenser. What is the effect of this? Also what is the actual cfm thru the evap on high? On low?
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AndyTblc
Great Lakes-Wayland
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Joined: 05/01/2009
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I turn mine on low, and since my box is only 18 foot, I figure it's good enough. I don't cool the bathroom. And what I like about mine is that the fan never stops running, the a/c will shut off, you will hear it kick off and on, but the fan stays on all the time, which is nice since there is all that white noise.
Just a good ol` 20 year old pulling my "big rolling you know what"
1978 Terry Taurus- 18'- Hillbilly Heaven
1999 GMC Sierra Classic 1500 Z71-My Baby
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Southwind85
Nomad
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Joined: 01/31/2007
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M GO BLUE wrote:If you ever run your AC on low speed you risk running the chance of your AC freezing up...always run it on high speed
If it happens to freeze up (you can tell by minimal airflow from the vents and no dripping from the top of the trailer) you have to turn it off and wait for it to thaw out...
Older units that have constant running fans will freeze up as described IF the unit is set to constantly run the compressor. The solution is to set the temperature control so the compressor will cycle on and off. When the compressor turns off, any ice that has formed on the cooling fins and is starting to restrict air flow will melt rather quickly as the air blows through them. The air coming out of the vents will maintain a near constant colder temperature the whole time while it's melting ice off the cooling fins and as it loses thermal energy into the cold cooling unit. When the ice is clear and the temperature starts rising, the compressor turns on and the cycle starts all over again.
I regularly run the AC on the low fan setting in all sorts of temperatures and humidity levels and it has yet to freeze up unless I do something silly like set the controller to where it won't cycle the compressor. In high humidity, ice forms then melts long before it starts restricting air flow. By running it on low, the ambient air going through the unit will actually cool more effectively than with the blower on high since the air is in the cooling area of the AC for longer time periods. IOW, it'll cool the RV quicker on low than it will on high.
The Good Life
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