|
|
06-11-2015, 01:11 PM
|
#29
|
"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,931
|
"jedwilli".....Even though your roof A/C's are ducted, if they have the exposed air intake, check to see if you have the adjustable grate. My Diplomat had the adjustable grate that allowed for the air to be shot straight down or forced into the ducts. if yours is adjustable, slide it open so that the air is forced straight down, not through the ducts.
Even though you're running the air, you often need to have some venting. You may want to try running your Fantastic Fans on low to draw the hot air off the ceiling.
If your coach doesn't have the adjustable grate to flow down or into the ducts, close the ducts in the bedroom. This will force all three units to push air forward. You might also try just running two. Run the front and rear and close the rear ducts, again forcing the air up front. All three nits run through common ducting.
Roof A/C's don't work the same while driving as they do while parked. The passing air makes them less efficient. You need to experiment with how you have them set, as described above and see what works best.
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
|
|
|
|
Join the #1 RV Forum Today - It's Totally Free!
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
|
06-12-2015, 08:19 AM
|
#30
|
Junior Member
Join Date: Jun 2015
Posts: 10
|
Thanks again for all the replies. My monaco dynasty has a decorative panel that covers the air conditioners in the front. The intakes and vents are under these decorative panels with about a two inch gap that allows the air to flow.
What I realized is that it has dividers (rubber strips) the blocks the output air from going into the intakes.
I replaced those strips with foam dividers to ensure the air flow was moving correctly and to minimize the output going directly back to the intake.
The real issue here is this decorative panel (measures about 12' x 3') pushes the air to the sides of the coach, and when the slides are in - that basically means to the top of the slides.
Not sure if this all makes sense - but if anyone has this type of setup and figured it out - I'd love to hear it
|
|
|
06-21-2015, 06:43 AM
|
#31
|
Senior Member
Join Date: Jun 2014
Location: Gulf Coast, Alabama
Posts: 2,450
|
Our trip to Birmingham through 98 degree sunshine saw the inside temp get to 87 degree es with dash air and genset powering one roof air unit (BR door closed). Without the dash air blowing on us, it would have been uncomfortable.
Volts with air on and genset working were 115; which I thought low. The CG also measured 115 (great COE at Gunter Lake, near Montgomery), so maybe volts are OK?
__________________
Rick and Sandy
2003 American Eagle, 59K miles
|
|
|
06-21-2015, 07:09 AM
|
#32
|
Senior Member
Join Date: Apr 2011
Posts: 2,569
|
Wife and I have insulated our coach very well, this makes a huge difference. We have installed fiberglass in the entrance door, overhead in the front cap, step area and behind the dash (firewall). Also insulated our dash air ducts with Reflectix. We live in our coach so we find the cold spots as well as the hot spots. We also have Ceramic tinting on all windows,made a huge difference while driving. The upgrade we have done has another advantage, much quiter! Our coach also has no black or dark paint.
__________________
American Tradition 42R-Cadillac SRX Blue Ox Koni 5050XL MCD Scangauge D Samsung rf197
Fulltime since 2012
|
|
|
06-21-2015, 07:10 AM
|
#33
|
Senior Member
Appalachian Campers
Join Date: Oct 2003
Location: Cashiers, N.C. USA
Posts: 275
|
Volts are good.
__________________
2001 Travel Supreme
36' Diesel
|
|
|
06-21-2015, 08:10 AM
|
#34
|
Senior Member
Join Date: Jun 2014
Location: Gulf Coast, Alabama
Posts: 2,450
|
Quote:
Originally Posted by Smokyjoe
Volts are good.
|
lol, at what point are voltage drops bad for our equipment?
__________________
Rick and Sandy
2003 American Eagle, 59K miles
|
|
|
06-21-2015, 08:20 AM
|
#35
|
Registered User
Join Date: Mar 2010
Posts: 8,777
|
Quote:
Originally Posted by bamaboy473
lol, at what point are voltage drops bad for our equipment?
|
bamaboy473
I have read that anything less than 108 VAC can damage RV air conditioners, however I've never run anything in my coach on less than 115 volts.
Mel
'96 Safari, 141k miles
|
|
|
06-21-2015, 08:25 AM
|
#36
|
Community Administrator
Join Date: Aug 2009
Posts: 53,430
|
Quote:
Originally Posted by bamaboy473
lol, at what point are voltage drops bad for our equipment?
|
An EMS ( electrical management system) is usually set to shut down power at 104 and 132.
__________________
Cliff,Tallulah and Buddy ( 1999-2012 )
|
|
|
06-21-2015, 11:23 AM
|
#37
|
Senior Member
Appalachian Campers
Join Date: Oct 2003
Location: Cashiers, N.C. USA
Posts: 275
|
!08 volts.
__________________
2001 Travel Supreme
36' Diesel
|
|
|
06-21-2015, 11:51 AM
|
#38
|
Senior Member
National RV Owners Club
Join Date: Jun 2009
Posts: 2,618
|
Quote:
Originally Posted by bamaboy473
lol, at what point are voltage drops bad for our equipment?
|
The Power Standards Lab has these charts. For the long term average 108VAC is the bottom Limit and 127VAC is the top Limit. Short term is more lax and in the cat "B" chart.
Power Standards Lab - Voltage Regulation
The spec for the Dometic Brisk-Air just says 115 VAC so I guess the standard has to go back to the utilities companies as documented in the first link.
https://onedrive.live.com/view.aspx?...62&app=WordPdf
Dick
__________________
1999 Tradewinds 7372 Cat 3126
Albuquerque, NM
|
|
|
06-22-2015, 02:54 PM
|
#39
|
Senior Member
Join Date: Jun 2014
Location: Gulf Coast, Alabama
Posts: 2,450
|
Thanks for the limits answers; sounds like our 115V were doing just fine...except that eliminated electricity as the prime suspect.
My sights are now set on the sat dome that is an original (maybe 30" wide by 16" tall). It sits about 5' in front of the forward A/C unit, and could be deflecting air during travel. Without a way to test actual temps, all I can offer is that my DW seemed to notice that the air was cooler while we were idling at a rest stop.
I will first test output temps at rest and at speed while the outside air is the same temp. IF the A/C output doesn't keep up at speed, then seems that removing the sat dome and re-doing the test is in order.
Does anybody know a better idea? To the OP, is your sat dome pretty close in front of your A/C unit?
__________________
Rick and Sandy
2003 American Eagle, 59K miles
|
|
|
06-22-2015, 04:07 PM
|
#40
|
Senior Member
Appalachian Campers
Join Date: Oct 2003
Location: Cashiers, N.C. USA
Posts: 275
|
My Winegard dome sits about 2' in front of my A/C unit. never been a problem.
__________________
2001 Travel Supreme
36' Diesel
|
|
|
06-22-2015, 08:25 PM
|
#41
|
Senior Member
Join Date: Jun 2014
Location: Gulf Coast, Alabama
Posts: 2,450
|
Quote:
Originally Posted by Smokyjoe
My Winegard dome sits about 2' in front of my A/C unit. never been a problem.
|
What, then, could be the causes of some coaches not getting cool, and some owners saying that it's never been a problem?
Most of us have 13,500btu units... could the brand be any issue, or does brand get off the hook as a cause?
Most of us use gensets that provide adequate voltage for a single unit (at least). does that let voltage out as a culprit?
Air flow somehow remains in the mix. When you say, never been a problem, can you quantify days with temperatures inside and outside the coach?
Could you post a side photo of your coach showing the frontal area and roof?
__________________
Rick and Sandy
2003 American Eagle, 59K miles
|
|
|
06-22-2015, 10:59 PM
|
#42
|
Senior Member
Join Date: Mar 2006
Location: Full Time USA
Posts: 2,216
|
I'd like to know how much it cost to get all the slide seals replaced.
I have a full wall slide and a headboard slide. Our ducted vents run right down the middle of the coach. No vents blocked or blowing on top of slides when in.
Looking forward to seeing a solution. Interesting thread!
__________________
Robert & Deb
07 Discovery 39v FWS Full Timers, Henniker NH
1K solar - 05 Jeep Grand Cherokee
|
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Thread Tools |
Search this Thread |
|
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|