Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-31-2011, 10:55 AM   #1
Aluminum Falcon Mechanic
 
Darkspeed's Avatar
 
1972 31' Sovereign
Wesley chapel , Florida
Join Date: May 2011
Posts: 1,169
Images: 6
Delete roof ac

My plan is to delete the roof ac and go with a mini split r-410a system.

Is the existing ac a standard size where it could be replaced with a off the shelf vent / fan?

If not I guess I would patch it with aluminum sheet.

Here is what I plan to replace it with - 9000btu in bedroom / 12000btu in living/kitchen area

LG air conditioner, LG heat pump, lg mini spit, lg Air Conditioner, lg ductless online wholesale direct from GoDuctless
__________________

__________________
Darkspeed is offline   Reply With Quote
Old 05-31-2011, 11:11 AM   #2
Rivet Master
 
vswingfield's Avatar
 
1983 34' Excella
1967 24' Tradewind
Little Rock , Arkansas
Join Date: Nov 2006
Posts: 3,773
Images: 32
Where do you plan to mount the outside compressor unit?
__________________

__________________
Vaughan
vswingfield is offline   Reply With Quote
Old 05-31-2011, 11:37 AM   #3
Aluminum Falcon Mechanic
 
Darkspeed's Avatar
 
1972 31' Sovereign
Wesley chapel , Florida
Join Date: May 2011
Posts: 1,169
Images: 6
I'm doing a frame from scratch with the addition of a grey tank, etc.. So I will be rebalancing the trailer. I plan on extending the A frame by 18" and building an aluminum enclosure for the outside unit.
I will run consult through the frame to the ac locations so lineset can be installed/ serviced without ripping anything out if it ever needs to be replaced. This way any condensation on the lineset will run out the conduit rather than accumulate in the frame.
Darkspeed is offline   Reply With Quote
Old 05-31-2011, 11:45 AM   #4
x
 
XXXX , XXXX
Join Date: Jun 2010
Posts: 2,601
Wow $2350 for an A/C unit. That's really expensive. You might want to talk to the manufacturer and ask them about using their product for a mobile application. I would suspect that the vibrations and bumps from travel might tear it apart.
There are basement model RV A/C's that are designed for mobile applications and they are a lot less money too.
__________________
wasagachris is offline   Reply With Quote
Old 05-31-2011, 11:59 AM   #5
Aluminum Falcon Mechanic
 
Darkspeed's Avatar
 
1972 31' Sovereign
Wesley chapel , Florida
Join Date: May 2011
Posts: 1,169
Images: 6
I have used them on mobile structures before without any failures so I feel comfortable with it. I did however use low durometer vibration isolators on the enclosures and braided flex whips to connect the outside units to the linesets.

For me there is an issue of sound and efficiency. The LG is very very quiet and when running on solar through a Trace inverter it is not super hungry.
Darkspeed is offline   Reply With Quote
Old 05-31-2011, 12:11 PM   #6
Site Team
 
azflycaster's Avatar
 
1975 25' Tradewind
Dewey , Arizona
Join Date: Mar 2005
Posts: 12,127
Images: 62
Blog Entries: 1
Are these units 120volt? If not you may not find power where you park.
__________________

Richard

Wally Byam Airstream Club 7513
azflycaster is offline   Reply With Quote
Old 05-31-2011, 12:17 PM   #7
Aluminum Falcon Mechanic
 
Darkspeed's Avatar
 
1972 31' Sovereign
Wesley chapel , Florida
Join Date: May 2011
Posts: 1,169
Images: 6
240 , but I am set up to input 120 and invert 240 output
Darkspeed is offline   Reply With Quote
Old 05-31-2011, 12:39 PM   #8
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Wasn't that something like what SmokelessJoe put on his Argosy (among a zillion other hi-tech things)? I remember it was made by LG. It happened somewhere in this thread but it's so long I didn't have time to find it.

He put the compressor on the A-frame without extending it, since he also completely converted to diesel and was propane-free (no tanks).

Anyway, definitely worth reading Joe's thread, seein' as how yer lookin' to gussy up yer TT purty good there...

__________________
Aage is offline   Reply With Quote
Old 05-31-2011, 12:42 PM   #9
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Quote:
Originally Posted by Darkspeed View Post
240 , but I am set up to input 120 and invert 240 output
Wow, that must be SOME inverter! Got a link to it, by enny chancet?
__________________
Aage is offline   Reply With Quote
Old 05-31-2011, 12:51 PM   #10
Aluminum Falcon Mechanic
 
Darkspeed's Avatar
 
1972 31' Sovereign
Wesley chapel , Florida
Join Date: May 2011
Posts: 1,169
Images: 6
It is a Trace SW4024 has been running for 11 years and only replaced one breaker in all that time. 24v 4000w this has been powering my main loads and I have two smaller Trace units linked to make 240v.
I just took all this off my building and moved to Florida so it will get transplanted into the AS. Deleting the roof ac also gives me a lot of space for transplanting part of my solar array as well
Darkspeed is offline   Reply With Quote
Old 05-31-2011, 01:02 PM   #11
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Here's the info on SmokelessJoe's LG "Art Cool" AC and heat pump unit. First off, it's on this page on LG's site, although that's the 1200BTU one, no idea which one he put on his TT.

Plus Joe put many shots of it in his Argosy as he was building it. Here are a few, as it was going in:

Page 11, post#154 and page 13, posts #176 and 177 give you a good look at it.

He refers to his Argosy as being Diesel-powered, meaning he got rid of the furnace and cooker for diesel ones. Not cheap to buy, but waay cheaper to run and fuel is everywhere.
__________________
Aage is offline   Reply With Quote
Old 05-31-2011, 01:09 PM   #12
Site Team
 
Aage's Avatar
 
1974 31' Sovereign
Ottawa , ON
Join Date: May 2008
Posts: 11,204
Images: 25
Quote:
Originally Posted by Darkspeed View Post
It is a Trace SW4024 has been running for 11 years and only replaced one breaker in all that time. 24v 4000w this has been powering my main loads and I have two smaller Trace units linked to make 240v.
I just took all this off my building and moved to Florida so it will get transplanted into the AS. Deleting the roof ac also gives me a lot of space for transplanting part of my solar array as well
OK, that is one b-i-g momma of an inverter! You already have it I see, so no worrying about the cost, but size is considerable, isn't it? At least from the only fuzzy photo of it I could find.

The LG Cool Art is 120V single phase 60Hz, or 36VDC, which could mean you wouldn't need that Trace unit at all.

In fact you could wire your solar array to drive it directly, no? I am not an EE though, so I'm just blue-skying here...
__________________
Aage is offline   Reply With Quote
Old 05-31-2011, 01:36 PM   #13
Aluminum Falcon Mechanic
 
Darkspeed's Avatar
 
1972 31' Sovereign
Wesley chapel , Florida
Join Date: May 2011
Posts: 1,169
Images: 6
This is what they look like.
The art cool is only 35w, the outside unit is the energy hog 1250w
Attached Thumbnails
Click image for larger version

Name:	image-3136849731.png
Views:	72
Size:	878.1 KB
ID:	131210  
Darkspeed is offline   Reply With Quote
Old 05-31-2011, 01:40 PM   #14
Wise Elder
 
Jammer's Avatar
 
2010 30' Classic
Vintage Kin Owner
South of the river , Minnesota
Join Date: Dec 2009
Posts: 4,119
Inverters are available in any size one might want.

There is a large inverter that takes 800,000 volts DC and inverts it to power most of Minneapolis' western suburbs. I'm not sure how big it is, hundreds of gigawatts, maybe more.

Inverters around 4kw are fairly common on yachts where it is common to have the main engine(s) running much of the time, providing 100 amps or more of DC, rather than an auxiliary generator. Also, with yachts, weight isn't as limiting as it is on Airstreams, so they can carry more batteries.

Darkspeed, best wishes for your project. I believe that the RV industry has reduced the quality of its offerings by having standardized on the 14x14" roof mount A/C port. Mini splits have few disadvantages other than cost.
__________________

__________________
Jammer 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Leaking roof repair & impact on resale value idahospuds21 Trailer Values 6 05-27-2011 05:04 AM
Roof Vent Insect Screen Installation Guym General Repair Forum 2 05-06-2011 08:08 AM
Roof mount Brackets for Solar Panel Bo2020 Generators & Solar Power 2 04-11-2011 02:20 PM
Combining Black and Gray Roof Vents for 1958 mello mike Roof Vents, Skylights & Fans 5 02-06-2011 01:50 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:50 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.