Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 07-07-2012, 03:05 PM   #1
Member
 
WannaFTit's Avatar
 
Join Date: Jun 2011
Posts: 45
Dashboard air

Ones anyone else have a problem with the dashboard air not cooling the front section of their 40' DP? We have had ours looked at 2 times and both times told that it just isn't meant to cool down the RV, that we should just use the basement air and run the genny. my question is, SHOULD the dash air be able to keep driver and passenger cool while driving?

John and Judy
__________________

__________________
WannaFTit is offline   Reply With Quote
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!

Old 07-07-2012, 03:21 PM   #2
Member
 
Join Date: Sep 2010
Location: Cambridge Ohio
Posts: 60
Should --but normally doesnt because of the amount of space there is to cool. Some people put a sheet across behind driver and passenger to cut down on the amount of space they are trying to cool. Most just use their house air with generator running.
__________________

__________________
Happyho is offline   Reply With Quote
Old 07-07-2012, 03:28 PM   #3
Senior Member
 
Join Date: Sep 2007
Location: texas
Posts: 2,268
True mine is only 28 feet years ago I went to the wrecking yard and bought a rear air from a good times van I live in Texas this wouldn't work in your Rv if it's hot I run the generetor
__________________
whem2fish is offline   Reply With Quote
Old 07-07-2012, 03:38 PM   #4
Senior Member
 
Ford Super Duty Owner
Join Date: Jan 2011
Location: Kitts Hill, OH
Posts: 1,863
It is just doesn't have parts large enough to cool more than the front 6?-10? feet (depends on just how much is glass ,.....)
The dash AC is just built of Car/Pickup truck sized AC parts.

I agree about the last poster idea of the curtain.
__________________
(RVM#26) THE U-RV 94 F-700/24 foot U-haul box home built RV
Mekanic is offline   Reply With Quote
Old 07-08-2012, 12:35 PM   #5
Member
 
Join Date: Apr 2012
Posts: 79
Blog Entries: 2
Yes it should, but what kind of condition is it in? Try hanging a curtain behind the driver and passanger seats.
__________________
bgc44a is offline   Reply With Quote
Old 07-08-2012, 12:55 PM   #6
Senior Member
 
SteveLevin's Avatar
 
Join Date: Feb 2010
Location: Sunnyvale, CA
Posts: 1,195
Biggest issue is that windshields are huge single pane conductors of heat and cold. For my coach it's less a question of temperature (it blows cold and hot) than just total volume of air it can move...

Steve
__________________
The Green Machine -- 2000 Mountain High Coachworks Summit (Spartan chassis / Cummins ISC)
...and F-Troop: Fearghus, Fiona, and Frankie (Cairn Terriers)
SteveLevin is offline   Reply With Quote
Old 07-08-2012, 01:03 PM   #7
Moderator Emeritus
 
TXiceman's Avatar


 
Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 17,150
Blog Entries: 21
As you have been told, it will not cool much more than the front few feet of the big class A. The windshield gains a lot of heat. Some owners rig a plastic curtain (shower curtain) right behind the front seats to limit the volume to cool.

If others are traveling with you, you will need to run the generator and roof A/c units.

Ken
__________________
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is online now   Reply With Quote
Old 07-08-2012, 03:50 PM   #8
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,792
Yes, Yes and no.

Yes I have had problems due to a couple of defective components which have since been replaced (Total 3)

Yes I have problems because the standard DASH air conditioner is NOT big enough to properly cool with all that glass up there in the greenhouse we call aq cockpit.

NO, it's working properly. The tests indicate it is working as designed, Just not big enough for the job (Well working as designed since the last bad part got replaced)

They really are not designed for full sun on a motor home at 100 outside temp.

To test, with A/C on HIGH, stick a thermometer in the out flow.. Now to do it right you need a "4 port" thermomemter" but since few have those, one will do.

The 4 ports (4 points you measure)

Evaporator inlet temp and out flow temp
Condenser inlet and outflow temp.

Then from a chart you can tell if it's working, You also need a humidity reading both inside and out.

Practical. If you set it to MAX AIR and measure the air temp near the floor where the inlet is, and the outlet is 25-30 degrees cooler.. You are good.

This, however, is NOT absolute,
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 07-08-2012, 03:59 PM   #9
Member
 
NINK's Avatar
 
Monaco Owners Club
Join Date: May 2011
Posts: 93
We had the same challenge with our A/C. Had it tested and was told that the A/C was operating as it should. We did as others have suggested and rigged a cable that runs the width of the coach behind the driver/passenger seats that holds two panels of thermal-backed, energy-efficient curtains. It really helps.
__________________
NINK is offline   Reply With Quote
Old 07-08-2012, 06:03 PM   #10
Senior Member
 
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
Make sure you're not trying to cool hot outside air? Are you running it on max so the recirculating door is open to the inside?

I set ours up so the chassis heater/AC is sucking air from the inside full time, no matter how the control is set. Makes no sense to me why I would want to heat cold outside air, or cool flaming hot outside air?

The side benefit to doing this is that when you roof AC's are running, the cab AC will pick that pre-cooled air off the floor and shoot it in your face if you like! Or you can set the control so the cab AC compressor isn't running, the heater on full cold, roof AC running, and with that recirculating door open because it can't close - you get the air from just the roof AC blown in your face.... WOrks good enough for us to run the cab AC on low much of the time.... even when it's VERY warm outside.
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
ahicks is offline   Reply With Quote
Old 07-08-2012, 06:10 PM   #11
Registered User
 
Join Date: Mar 2011
Posts: 1,943
Drop a clear shower curtain down behind the front seats. The dash air works on most as long as it's under 80 degrees out.
__________________
Perry White is offline   Reply With Quote
Old 07-08-2012, 09:54 PM   #12
Senior Member
 
B Bob's Avatar
 
Join Date: Sep 2010
Posts: 1,162
Our OTR air (dash air ) works well and we never use anything else when driving. We do have a second unit in the bedroom which is also main motor driven. When it is not too hot the dash air alone works fine. Most Affinities come with two running airs like a lot of vans and SUVs do.
__________________
B Bob
Country Coach 42' Affinity
2013 Jeep Wrangler Unlimited
B Bob is offline   Reply With Quote
Old 07-09-2012, 08:38 AM   #13
Member
 
Ford Super Duty Owner
Join Date: Aug 2011
Location: Eastern Ohio
Posts: 40
Quote:
Originally Posted by ahicks View Post
Make sure you're not trying to cool hot outside air? Are you running it on max so the recirculating door is open to the inside?

I set ours up so the chassis heater/AC is sucking air from the inside full time, no matter how the control is set. Makes no sense to me why I would want to heat cold outside air, or cool flaming hot outside air?

The side benefit to doing this is that when you roof AC's are running, the cab AC will pick that pre-cooled air off the floor and shoot it in your face if you like! Or you can set the control so the cab AC compressor isn't running, the heater on full cold, roof AC running, and with that recirculating door open because it can't close - you get the air from just the roof AC blown in your face.... WOrks good enough for us to run the cab AC on low much of the time.... even when it's VERY warm outside.
How did you fix it so the fan only pulled air from inside the coach? Does keeping it on MAX air do it? Thanks
__________________
redtop is offline   Reply With Quote
Old 07-09-2012, 08:45 AM   #14
Senior Member
 
Vegasdan's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Oct 2009
Posts: 1,873
Consider trying to cool a small apartment with a automobile A/C, that's what you are trying to do. Run the genset and the roof or basement air.
__________________

__________________
2001 National Tradewinds 7370 300 Cat
2011 Jeep Wrangler Unlimited Sport
Officially fulltiming. The Journey Begins
Vegasdan is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:40 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.