Reply
 
Thread Tools Display Modes
Old 07-07-2012, 10:41 PM   #1
Junior Member
 
Join Date: Jul 2012
Posts: 9
A/C question

I just purchased a 2011 390bh. How well can I expect the a/c to work in extreme heat 95+ deg. When sitting in a parking lot in direct sunlight the coach would not cool down to anything better than 85deg. I was running on the generator and both a/c's seemed to be blowing cold air, it just wasn't enough to gain on the heat. Is this normal?

Mark
__________________

__________________
mbills is offline   Reply With Quote
Old 07-08-2012, 12:19 AM   #2
Phat Phrog Stunt Team
 
TURBS's Avatar
 
Join Date: Aug 2011
Location: Iowa
Posts: 34,337
Quote:
Originally Posted by mbills
I just purchased a 2011 390bh. How well can I expect the a/c to work in extreme heat 95+ deg. When sitting in a parking lot in direct sunlight the coach would not cool down to anything better than 85deg. I was running on the generator and both a/c's seemed to be blowing cold air, it just wasn't enough to gain on the heat. Is this normal?

Mark
Welcome to the forum.

In high humidity and 95 degrees I think you did well at 10 degrees below outside temp . we have 1 13.5 on our 5er and it was 101 yesterday and we maintained 86 but we were in shade on both sides.
__________________

__________________
TURBS is offline   Reply With Quote
Old 07-08-2012, 01:07 AM   #3
Junior Member
 
Join Date: Jan 2011
Posts: 22
I found the same, esp in the sun. It's not bad in the shade, there's just not enough thickness and insulation in the walls and ceiling for direct sun. I added a 3rd AC unit, which made it much better in high heat w/sun.
__________________
2011 390BH
MotoWood is offline   Reply With Quote
Old 07-08-2012, 01:27 AM   #4
Senior Member
 
kingwood390bh's Avatar
 
Join Date: Nov 2011
Posts: 270
Did you try adjusting the vent on the individual ac units? There is a vent switch on each unit that allows air to bypass the ducts and blow directly down. When we are trying to get our hot coach cooled in a hurry, we open the vent which allows for free flow of air. We live in Texas and it seems to work.
__________________
kingwood390bh is offline   Reply With Quote
Old 07-08-2012, 09:08 PM   #5
Junior Member
 
Join Date: Jul 2012
Posts: 9
Quote:
Originally Posted by kingwood390bh
Did you try adjusting the vent on the individual ac units? There is a vent switch on each unit that allows air to bypass the ducts and blow directly down. When we are trying to get our hot coach cooled in a hurry, we open the vent which allows for free flow of air. We live in Texas and it seems to work.
I did have each of the a/c units set to just dump the air into the coach. The dealer did explain that that would cool things off the best. I wonder how much the dark exterior is affecting things.
__________________
mbills is offline   Reply With Quote
Old 07-08-2012, 10:35 PM   #6
Junior Member
 
Join Date: Aug 2011
Location: Great Falls
Posts: 5
Agree with kingwood390bh. On each of the AC units, there is a vent that controls where the air will go. It will send the air throughout the unit if closed, or directly down below the AC unit. Open it up until cooled so you are comfortable, then partially close it to blow air throughout the unit. We have endured 108 degrees this way and have been able to cool the unit to 85 degrees while in Texas. Close the doors to any areas not requiring immediate cooling. And finally, eat some ice cream, it will cool you down..
__________________
bakcraker is offline   Reply With Quote
Old 07-08-2012, 11:12 PM   #7
Senior Member
 
kingwood390bh's Avatar
 
Join Date: Nov 2011
Posts: 270
As a side note, keeping a coach cool is easier than cooling a hot coach. When you have to cool all of the hot walls and furniture, as well as the air, its a battle. We super cool the coach before we set out and try not to let it heat up.
__________________
kingwood390bh is offline   Reply With Quote
Old 07-09-2012, 01:00 AM   #8
Senior Member
 
Taranwanderer's Avatar
 
Join Date: Oct 2011
Location: NEPA
Posts: 1,446
I have a somewhat related question here. Today, I was testing out my single 13.5 AC unit in the 29' Salem, as we'll be camping in 2 weekends and I'm sure we're going to need AC for the first time. So this unit also has the vent control that you can open it up and it will blow all the cold air straight down, or you flip the control and the cold air flows through the ducts and out the registers. My issue is: there are 3 registers in the main area of the camper on only one in the bedroom (which is where the DW will insist that it be cool). First off, doesn't that seem kind of dumb to put three in one area? Second, has anyone tried to block off a register to force more cold air to the other registers? I'm pretty sure that I could fabricate a block-off plate for one of them, but is it a good idea? Thanks!
__________________
2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)27 ('17) 20
2016 Ford Fusion Titanium (gulping gas again, camping support vehicle)
2014 Harley Davidson FLHX (XLR cargo)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)
Taranwanderer is offline   Reply With Quote
Old 07-09-2012, 04:27 PM   #9
2011 Berkshire 390BH
 
Superchief's Avatar
 
Join Date: Aug 2011
Location: Lancaster, NY
Posts: 1,063
On mine you can close off each register by closing the end of each vent cover. Can you do that on yours?
__________________
Craig



Finally completed all State visits in August 2011 with a trip to North Dakota.
Superchief is offline   Reply With Quote
Old 07-09-2012, 06:13 PM   #10
Senior Member
 
Taranwanderer's Avatar
 
Join Date: Oct 2011
Location: NEPA
Posts: 1,446
No, that would be great. The ends of the registers spin so you can direct the air flow to different areas, but no provision for closing them off. I think a block-off plate is in my future.
__________________

__________________
2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)27 ('17) 20
2016 Ford Fusion Titanium (gulping gas again, camping support vehicle)
2014 Harley Davidson FLHX (XLR cargo)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)
Taranwanderer 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.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 03:23 PM.