Reply
 
Thread Tools Display Modes
Old 09-20-2016, 05:21 PM   #21
Senior Member
 
Join Date: Jan 2016
Posts: 110
Yes thanks for all the discussion and input everyone. It's an interesting discussion.
__________________

__________________
Steve & Jean
Furbaby - T.J.
Towmotor - 2013 Chevy LT DRW Duramax/Allison
5er - 2013 Cedar Creek 36CKTS Classic Champagne Touring Edition
Stevemc is offline   Reply With Quote
Old 09-20-2016, 10:11 PM   #22
Senior Member
 
SailorSam20500's Avatar
 
Join Date: Jun 2016
Posts: 235
Well, just to chime in again. Once the unit is running and pulling in air, there may not be a bunch of difference. But if the unit is cycling on and off, the white cover should keep the hardware temps down. So there should be some benefit initially. FWIW, for my mothers S&B AC unit, based on a write-up in the local paper, I built a white structure over her unit. During the afternoon it was in full sunlight. It seemed to help her - electric bill dropped a bit.
__________________

__________________
Al
S.E. Mich.
Flagstaff 26FKWS / 2016 F-150 3.5 EcoBoost SCrew
SailorSam20500 is offline   Reply With Quote
Old 09-21-2016, 12:16 AM   #23
Senior Member
 
Join Date: Jan 2013
Posts: 1,172
Quote:
Originally Posted by stevejahr View Post
I think this comes under the "it all depends" category...

There are two processes happening in the rooftop A/C unit:

1. Air comes up from the RV and goes through the evaporator. This compartment could benefit from being in a cooler environment so as to not absorb heat. I have read of folks insulating this portion of the rooftop unit with reflectix type foil/bubble wrap.

2. Air is pulled in from ambient and goes through the condenser. The air passing through needs to absorb heat so there is some rationale that cooler air would be better. But since it is pulled in and moving I doubt that cover color really has much effect here. The mister jets would be more effective... I have seen kits to do this on home A/C lately. I have always wondered though if this would not add lots of corrosion and/or mineral deposits and thus shorten the lifespan of the condenser?
No air from outside is drawn into the RV....
__________________
2016 Siverback 33IK
2015 Ford F-250 Lariat 6.7L V8 Diesel 4WD Super Cab

"If you don't know where you are going, any road will get you there."
dalford is online now   Reply With Quote
Old 09-21-2016, 12:27 AM   #24
Learning a lot as I go...
 
Join Date: Aug 2015
Posts: 207
Quote:
Originally Posted by dalford View Post
No air from outside is drawn into the RV....
Agreed. I was not saying that outside air was drawn into the RV, only drawn into the A/C unit on the roof to pass through the condenser and back out again. The A/C works as a heat pump and removes heat from the RV air passing through the evaporator and then must lost that heat to air passing through the condenser.
__________________
2015 Rockwood 2604WS (sold as 2016)
2014 Ford F-150 Ecoboost
stevejahr is offline   Reply With Quote
Old 09-21-2016, 09:04 AM   #25
Senior Member
 
silver's Avatar
 
Join Date: Oct 2011
Posts: 655
I have a 40 foot motorhome with two 13500 A/Cs. Five years back I insulated the A/C covers as many have recommended and saw little difference in performance. Last year I painted just the top of the black covers white and the shower skylight white. I can now keep the coach comfortable with just one A/C in 95 degree heat when I can only get 30 amp service. I say painting the top of the covers white works.
__________________
silver is offline   Reply With Quote
Old 09-21-2016, 06:39 PM   #26
Senior Member
 
Join Date: Jan 2016
Posts: 110
This thread has been very helpful for me. I don't know much about how air conditioners work but I just know I like to be able to stay cool and I'm always concerned about the wear and tear when the A/C's run constantly to keep up. It's great to have so much knowledge that is available on the forum and so many folks willing to share it.
__________________
Steve & Jean
Furbaby - T.J.
Towmotor - 2013 Chevy LT DRW Duramax/Allison
5er - 2013 Cedar Creek 36CKTS Classic Champagne Touring Edition
Stevemc is offline   Reply With Quote
Old 09-21-2016, 07:43 PM   #27
Member
 
Join Date: Apr 2016
Posts: 92
On our 2504s I put reflitx on the cold side of the roof a/c. I also put on a hard start capicator at the same time. I wondered the same thing about putting a black cover over something that I am trying to cool. I am going back up there and paint the top of the cover white,seems like a good way to make the roof unit a little cooler but from the ground it will still look black. I also agree that misting would help but could leave deposits on the condenser. I am a retired HVAC tech on Kenworth trucks, but that is a different ball game. On the inside I put reflitx covers on the front vent and in the shower sky light. That made a big difference. Keep in mind the a/c has always kept things cool in our camper. Based on the size camper that I have I could see how people with bigger units could have trouble. Jay
__________________
Jay2504 is offline   Reply With Quote
Old 09-21-2016, 07:51 PM   #28
Senior Member
 
pt1655's Avatar
 
Join Date: May 2013
Location: Paulden, Az.
Posts: 359
hidee ho

Lots of great posts on this subject. Being retired and my wife is not, I have the time to think of lots of projects to do to our trailer. I just got done painting our black refer vents (top and side) & A/C covers white and hope it makes a difference here in Arizona. It wasn't much work; the prep time took more than the painting.
Who else has a fun project I can try?!!
Happy Camping!!
__________________

2013 Forest River Surveyor SP220 Sport
2012 Ram 1500 4X4, 5.7L Hemi quad cab, Bullydog GT tuner, true dual exhaust, 85mm throttle body, AFE dry filter
pt1655 is offline   Reply With Quote
Old 09-21-2016, 08:59 PM   #29
Senior Member
 
Retired JSO's Avatar
 
Join Date: Feb 2016
Location: NE Florida
Posts: 194
Improving A/C performance

The new units have very little performance increase from the shroud being white against black. All new units separate the cool from the hot exposed temperatures by molding the internal unit in styrofoam thus using a thermal unit between the condenser and evaporator. Outside vs inside temperature is the killer with our units. Now shading the entire camper is a different horse race.
__________________

__________________
Retired JSO is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:21 PM.