Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-11-2013, 09:02 AM   #15
Moderator
 
DKB_SATX's Avatar

 
2017 26' Flying Cloud
1976 Argosy 28
Alamo Heights , Texas
Join Date: Aug 2006
Posts: 6,401
Images: 1
Blog Entries: 7
Quote:
Originally Posted by lewster View Post
How long do you intend to run an A/C unit from an inverter? How large is your battery bank? You might be sorely disappointed when you add in the Peukert effect and realize that your initial calculations do not account for this.
It looks like the unit itself has what's billed as an "inverter" to drive the DC compressor. They should call that a converter, since it's AC to DC, but I've seen that language in other listings for these split-system room ACs.
__________________

__________________
— David

Zero Gravitas — 2017 Flying Cloud 26U | Il Progetto — 1976 Argosy 28 Center Bath | WBCCI# 15566

He has all of the virtues I dislike and none of the vices I admire. — Sir Winston Churchill
DKB_SATX is offline   Reply With Quote
Old 07-11-2013, 09:03 AM   #16
Rivet Master
 
Aviator's Avatar

 
1997 34' Limited
1970 27' Overlander
South of Atlanta , Georgia
Join Date: Sep 2009
Posts: 1,655
Images: 2
I installed the Penguin II 15K unit as a replacement for my Penguin I 13.5K unit in our 1997 34'. I also changed the interior ceiling mounted air box. The single unit does keep out trailer cool in the Atlanta Summer, but it is much louder inside the trailer than the old unit.

If I were doing it over again, I would have gone with another 13.5K unit in the middle of the trailer and an 11K unit in the rear bedroom.
__________________

__________________
Craig and Carol
1997 34' Excella 1000
1970 27' Overlander, International
2009 Ford F150 5.4L
ProPride hitch with 1400# bars

AIR 41028
TAC GA-8
WBCCI 10199
Past President Southeastern Camping Unit (12)
Aviator is offline   Reply With Quote
Old 07-11-2013, 09:37 AM   #17
1 Rivet Member
 
Rye , New Hampshire
Join Date: Sep 2009
Posts: 6
Quote:
Originally Posted by lewster View Post
How long do you intend to run an A/C unit from an inverter? How large is your battery bank? You might be sorely disappointed when you add in the Peukert effect and realize that your initial calculations do not account for this.
Lewster,

Glad you chimed in. I will not be running the ac through an inverter off of a battery bank. I run the ac on 110-120 volts land line. The ac unit has an inverter built in to run the inside unit more efficiently on Dc current. According to the specs, there is not that on then off then lag then on again. One will have to read the specs as I'm no expert.
__________________
zekeobond is offline   Reply With Quote
Old 07-11-2013, 09:51 AM   #18
1 Rivet Member
 
Rye , New Hampshire
Join Date: Sep 2009
Posts: 6
Quote:
Originally Posted by DKB_SATX View Post
It looks like the unit itself has what's billed as an "inverter" to drive the DC compressor. They should call that a converter, since it's AC to DC, but I've seen that language in other listings for these split-system room ACs.
Actually it's AC to DC back to ac at a different frequency...go figure!
__________________
zekeobond is offline   Reply With Quote
Old 07-11-2013, 11:39 AM   #19
Rivet Master
 
SmokelessJoe's Avatar
 
1976 Argosy 24
now being enjoyed by Heath and Mary in , Vermont
Join Date: Sep 2005
Posts: 1,422
Lewster,

DKB and Zeke have the correct understanding of how the terminology “inverter” is used in these split systems.

It’s somewhat similar to how inverting is done in the modern, very quiet generators. Here’s how HONDA describes their’s:

First, the generator's alternator produces high voltage multiphase AC power. The AC power is then converted to DC. Finally the DC power is converted back to AC by the inverter. The inverter also smoothes and cleans the power to make it high quality. A special microprocessor controls the entire process, as well as the speed of the engine.

I know that my Japanese built Subaru Robbins works like this.

My layman’s description of how modern, superior AC split systems work is this:
Unlike conventional air conditioning, where the compressor slams on whenever called for by the room thermostat, the split unit blower head inside, using 12v fans and controlled by micro processors, continues to use the resident cold in the gas lines even when the compressor is not running. Thus you have extreme quiet and high efficiency.

My LG Art Cool system is so quiet that you can conduct a normal conversation standing outside alongside the compressor. In a trailer park, the roar of your neighbor’s rooftop will drown out any sound emanating from your compressor!

Inside the trailer the system is often so quiet that I have to check the LED indicators to see what function the machine is in.

I agree with reinergirl that the Split AC is the Holy Grail.
Along with my diesel powered hydronic heating system I consider the Split AC, along with the macerator system, the best things accomplished in my renewal of the ARGOSY.

Here are links to some other Forum discussions on the subject:

http://www.airforums.com/forums/f427...a-89158-3.html

http://www.airforums.com/forums/f427...bed-36922.html

http://www.airforums.com/forums/f227...tml#post239455


Zeke, I tried to answer your PM’s but they bounce back from your Comcast address. Send me a better address.

Sergei

Click image for larger version

Name:	Sunset Grant.jpg
Views:	113
Size:	130.1 KB
ID:	190699


entire unit soon available
__________________
SmokelessJoe is offline   Reply With Quote
Old 07-11-2013, 12:39 PM   #20
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,281
Got it!

Thanks!
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 07-11-2013, 04:10 PM   #21
1 Rivet Member
 
Rye , New Hampshire
Join Date: Sep 2009
Posts: 6
The split zone AC

Sergi,

Great that you chimed in as well! I was so interested on how the AC performed for you. I noticed that the distance from the outdoor unit to the Argosy front is no more than 2" ( by the looks of the pictures) I was thinking to have around an average of 6" clearance to my outdoor unit when it's all installed. I'm getting pretty exited with this project, hope to start in October. Anyone want to buy a new Dometic roof AC ...Cheap?

Zeke
__________________
zekeobond is offline   Reply With Quote
Old 07-11-2013, 04:53 PM   #22
Rivet Master
 
1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
Posts: 5,648
How do you get the extended Dometic Warrantee and what is the cost?

Perry


Quote:
Originally Posted by lewster View Post
There are currently 6 different units available form 4 manufacturers:

• DOMETIC Penguin II low profile in high capacity (15K)
Brisk Air 15K higher profile

• RVP COLEMAN Mach 8 super low profile 15K
Mach 3 higher profile 15K

• Advent (CHINESE) 15K high profile

• Atwood (new to market) 15K high profile

My opinions:

Dometic has the best extended warranty of all available units 2 year factory plus optional 2 + 1 year additional warranty. This means a factory replacement of a bad unit for 4 years parts and labor, plus parts only in the 5th year for around $100....servicable thru ANY authorized Dometic service center.

RVP has a 2 year factory warranty with available extended 3 year additional. From my experience with RVP, they typically want the defective unit FIXED rather than REPLACED after the initial 2 year warranty and most RV Techs and service centers are not capable of changing compressors, adding process valves, finding and fixing leaks or re-charging systems. Regular residential A/C techs want nothing to do with RV units!

Advent has a 2 year warranty and will replace bad units. I have only seen a couple of these, and I'm not impressed with the design, construction or warranty. They are new to the RV air conditioning world and have a very long way to go!

Atwood has been in the furnace and water heater business for quite a while. They have recently entered the RV refrigeration scene with ammonia/helium gas/absorption units. Haven't seen any of these in new trailers or MoHOs yet so I can't comment. They also recently entered the RV air conditioning market. Haven't seen any of their units yet, but they claim to get the equivalent of 18K of cooling from a 15K unbid

If it is anything like their smoke and mirrors EXT series of water heaters, you can have them!

As far as reliability, Dometic and RVP have my vote....about equally. I will say that I replace a lot more Dometic units, but that is because they have the commanding presence in the RV field. I have also noticed a move by the very high end motor home manufacturers to go with the new RVP Coleman units over the Dometic versions.

Which is best? Toss-up! Ford, Chevy or Dodge..........

Questions?
__________________
perryg114 is offline   Reply With Quote
Old 07-11-2013, 06:20 PM   #23
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,281
When you register your initial 2 year warranty with Dometic, you can get the information on the extended warranty. All transactions are directly with Dometic's warranty folks.

From my understanding. the cost is around $100.
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 07-11-2013, 07:15 PM   #24
Rivet Master
 
1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
Posts: 5,648
I might check into that if it is not too late. My warrantee period is not up yet.

Perry
__________________
perryg114 is offline   Reply With Quote
Old 07-13-2013, 02:25 PM   #25
Rivet Master
 
VeggieBullet's Avatar
 
1973 31' Sovereign
2007 20' Safari SE
Vintage Kin Owner
Wesley Chapel , Florida
Join Date: Oct 2011
Posts: 879
Quote:
Originally Posted by reinergirl View Post
The holy grail? What about Sergei's (smokeless joe) LG “Art Cool” split system air conditioner?

His thread
http://www.airforums.com/forums/f227...tml#post967026
Ye are thinking about it, may be a double split unit? 1 for bedroom and 1 livingroom/kitchen area, just dont know where to put it

Quote:
Originally Posted by slowmover View Post
A 5'er the size of his will need good air distribution . . the downfall of the split system. OTOH there are commercial / bus systems that can go in a big storage compartment. $$$$
We have a huge storage compartment in the front that is for the generator and we have no plans on getting one, so may be there?

Quote:
Originally Posted by Aviator View Post
I installed the Penguin II 15K unit as a replacement for my Penguin I 13.5K unit in our 1997 34'. I also changed the interior ceiling mounted air box. The single unit does keep out trailer cool in the Atlanta Summer, but it is much louder inside the trailer than the old unit.

If I were doing it over again, I would have gone with another 13.5K unit in the middle of the trailer and an 11K unit in the rear bedroom.
Do you run both at the same time? or just the new unit keeps the trailer cool?
thanks

Quote:
Originally Posted by SmokelessJoe View Post
Lewster,

......

I agree with reinergirl that the Split AC is the Holy Grail.
Along with my diesel powered hydronic heating system I consider the Split AC, along with the macerator system, the best things accomplished in my renewal of the ARGOSY.

........

Sergei
What are the dimensions on your outside unit?
Also what do you think about a double split unit? 1 for the bedroom (may be a 9000btu) and 1 for the living room kitchen area?

Lewster:
What is your inputs about :
1) the Mach 8?
2) 2 low profile 15K BTUs Dometic with the dual zone control?
3) was talking to the service dept at lazydays and they mentioned a lot of issues with the Mach13, any comments?
__________________
Still One Nation under GOD
2 chronicles 7:14
VeggieBullet is offline   Reply With Quote
Old 07-18-2013, 08:28 PM   #26
Rivet Master
 
VeggieBullet's Avatar
 
1973 31' Sovereign
2007 20' Safari SE
Vintage Kin Owner
Wesley Chapel , Florida
Join Date: Oct 2011
Posts: 879
Lewster:
What is your inputs about :
1) the Mach 8?
2) 2 low profile 15K BTUs Dometic with the dual zone control?
3) was talking to the service dept at lazydays and they mentioned a lot of issues with the Mach13, any comments?
__________________
Still One Nation under GOD
2 chronicles 7:14
VeggieBullet is offline   Reply With Quote
Old 07-18-2013, 09:48 PM   #27
Rivet Master
Commercial Member
 
lewster's Avatar
 
Vintage Kin Owner
Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 7,281
Quote:
Originally Posted by VeggieBullet View Post
Lewster:
What is your inputs about :
1) the Mach 8?
2) 2 low profile 15K BTUs Dometic with the dual zone control?
3) was talking to the service dept at lazydays and they mentioned a lot of issues with the Mach13, any comments?
The Mach 8 has 2 motors and is the quietest, most efficient unit when operated on low fan speed. Some folks say that they are louder outside than the Dometics, but I have not experienced this. Remember that they do have 2 motors.

I am partial to the Dometic Penguins, as their connection system is easier to trouble shoot and their Comfort Control II system is the most advanced RV thermostat system currently available.

If the service department at LazyDays out there is anything like the one at their large location in Tampa, I have no faith in what they say or do. This is from personal experience and the constant complaints about them that I hear from my clients. I have not seen any significant issues with any of the RVP/Coleman product line.

Any other questions?
__________________
Lew Farber...ABYC Certified Master Marine Electrician...RVIA Certified Master Tech ...AM Solar Authorized Installation Center...AIRSTREAM Solar & Electrical Specialist...Micro Air 'Easy Start' Sales and Installations
lewster is offline   Reply With Quote
Old 07-18-2013, 09:59 PM   #28
3 Rivet Member
 
kmaggard's Avatar
 
1994 21' Sovereign
Paradise Valley , Arizona
Join Date: Jun 2013
Posts: 135
One huge consideration for me buying a new AC unit it to get one that is thermostat controlled. Most of the companies are making systems with thermostats. To sleep at night and have the AC kick off, including the blower, makes for a goods nights rest.

Several years ago I put a ducted unit in a 19ft Bambi and was able to modify it for air decent air flow even though there were no ducts. At the time it was one of the few ways to get the thermostat control and the big plus was the remote control it came with.
__________________

__________________
kmaggard 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 07:29 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.