Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-05-2015, 08:01 AM   #15
4 Rivet Member
 
SuzyHomemakr's Avatar
 
1972 29' Ambassador
Boynton Beach , Florida
Join Date: Dec 2013
Posts: 385
Quote:
Originally Posted by lewster View Post
With solar, I'd forget the poor performance and efficiency of ANY gas-absorption type fridge and go straight to a Danfoss compressor powered marine fridge.

Indel Webasto:*CRUISE Marine Refrigerators

OR

seaclassic

I use both of these on a regular basis in my installations to great user reviews!
What would your ideal battery setup be for one of these big boys? I'm trying to revive my old Dometic with various vent fans... if that doesn't work, I'll be in the market for a new fridge. The SeaClassic 8.1 draws over 5 amps, that seems like a nightmarish load to a guy with a single deep cycle!
__________________

__________________
SuzyHomemakr is offline   Reply With Quote
Old 09-05-2015, 10:54 AM   #16
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 SuzyHomemakr View Post
What would your ideal battery setup be for one of these big boys? I'm trying to revive my old Dometic with various vent fans... if that doesn't work, I'll be in the market for a new fridge. The SeaClassic 8.1 draws over 5 amps, that seems like a nightmarish load to a guy with a single deep cycle!
I only use these types of fridge units when there is a sufficiently large solar array and battery bank in place. That means a battery of at least 300 amp/hours and the solar to charge it.

The 5 amp rating that you see listed is at 100% duty cycle. It has been the experience of many of my clients that the actual draw from a fridge powered b a Danfoss compressor is more like 40-50% of the rating, as the unit does not operate continually.

With that in mind, a 5 amp rating would turn into a 2-2.5 amp/hour draw. Over the course of 24 hours, that would be about 60 amp/hours max. Any properly designed and installed solar charging system will replace that amount of power easily, usually by early afternoon.
__________________

__________________
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 09-05-2015, 11:16 AM   #17
3 Rivet Member
 
2014 30' Flying Cloud
Ponce Inlet , Florida
Join Date: Oct 2012
Posts: 166
I have and indel isothem 195 with dual danfoss compressors. We love it. It draws just short of 8 amps DC with both compressors running. We have found the 76 ah @ 70F per day spec indel published is a good approximation.


The most I have used overight was 110 Amps. That was at Lee's Ferry AZ where the day time temp was 104 and it got to a balmy 81 at midnight. Normally I use about 60-70 Amps overnight for all our elecrical needs. From my experience you would need a minimum 200 ah battery if you plan to use a genset to charge every AM.

If your going with solar you will need a much larger battery bank. For solar it depends on how you plan to camp, how manny consecutuve days you want to dry camp, what time of year and where you camp, type of batteries and a host of other variables.

We designed our system for around 4 days of crappy weather or partial shade.

4 135 watt Solar panels Watts with
Lifeline 600ah battery bank.

We have dry camped for 16 day in mostly sunny sites for 16 consecutive days with no issues.
We have also been in crappy weather w/ partially shaded site and made it four days but were close to 50% capacity. Probably would not have made a fifth night. Overall the system exceeded our expectations.

Because everyone's electrical needs are different there is no set answer.

Based on my experience I would not get less than a 400 ah battery bank larger if you have the space and $$. You could get less if you go with lithium batteries.

YMMV
Benn
__________________

__________________
Beach Bum 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
Starting From Scratch AV stowaways Audio, Video & TV 4 08-07-2011 04:11 PM
Starting from Scratch Mike&Ali Electrical - Systems, Generators, Batteries & Solar 12 02-26-2010 11:42 PM
starting from scratch~moho vs. trailer? ~flutterbee~ Buyer Guidelines 14 07-14-2006 09:48 PM
Rewiring - starting from scratch 59er Electrical - Systems, Generators, Batteries & Solar 32 10-26-2005 05:20 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:13 PM.


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.