Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 


Reply
 
Thread Tools Display Modes
 
Old 10-15-2007, 01:29 AM   #21
Senior Member
 
Join Date: Apr 2007
Location: Reno, NV
Posts: 282
Quote:
Originally Posted by Jammyauto
Without any recharging my house batteries will run the fridge for a week. I also have an ARB portable fridge/freezer that we bring full of frozen food for longer trips. The isotherm is very quiet.
Seriously? A week? Do you have one or more 4D AGMs? If you really get a week with one 4D, then I'll forget my plan of solar panels and just replace the fridge!

Let me know if you're ever up in San Fran area. Would love to do a quick instrumentation on your setup to see how much current it's really pulling and get the data for comparison.
__________________

__________________
2006 RB50 6.0 Diesel
Flatplate water heater (mounted INSIDE), portable butane stove (no propane)
SMB 4WD
Amsoil
kzemach is offline   Reply With Quote
Old 10-15-2007, 07:55 AM   #22
Senior Member
 
Greg In Austin's Avatar
 
Join Date: Jul 2007
Location: Austin, Texas
Posts: 1,543
Send a message via AIM to Greg In Austin Send a message via Yahoo to Greg In Austin
Quote:
Originally Posted by Jammyauto
I have the isotherm cruise85 ASU in my van.
Seth,

Did SMB do the install on your Isotherm Cruise85? or did you install it?

If you installed, did it replace another fridge?

Thanks,
__________________

__________________
Greg in Austin
2008 Ford 6.0PSD EB/E-PH SMB 4X4 Aluminess f/r bumpers (13.5mpg avg, 15mpg hwy) 52k miles [Texas McBeast]
2006 Toyota Prius (48 to 68 mpg) 120k miles [Penelope]
2013 Jeep Wrangler Unlimited Rubicon (15 to 18 mpg) [Johnnie]
2012 Mitsubishi MiEV (no gas required) ($.50/day in electricity) [Evie]
https://badge.facebook.com/badge/1232...3.32047100.png
Greg In Austin is offline   Reply With Quote
Old 10-15-2007, 10:16 AM   #23
Senior Member
 
Buji's Avatar
 
Join Date: Apr 2007
Location: Mather, CA
Posts: 378
On a side note, I've been considering building a custom cooler/seat to go between my benches in the back and use as a seat when camping.

I have to dinette benches in the back, and having a '7th' seat facing forward in the back would be nice for when we're sitting around the table in the back etc, as well as providing one more place to store either dry goods or extra ice. Ideally with a padded top it would match the height of the benches in the back and look incorporated.
__________________
-Buji
_________________________
Modified EB-22 with Penthouse Top
https://www.sportsmobileforum.com/alb...43791a54be.jpg
Buji is offline   Reply With Quote
Old 10-15-2007, 10:54 AM   #24
BC
Senior Member
 
BC's Avatar
 
Join Date: Sep 2007
Location: Oregon
Posts: 168
On our rig, the wife spec'd the 4cu unit and I thought it was nuts; wanted the smaller one. It has turned out to be one of the best upgrades, a smart choice. Awesome capacity, really nice to have, and true freezer capability. And I can run it for days on the house battery. Yes the compressor vibrates the whole van, which sucks and initially irritated me to no avail. But I've gotten used to it, and the way you use these things is get them cold then adjust and simply turn it down a bit to shut off the compressor, at night for instance. It will retain temp well, so compressor does not always need to be running.
BC is offline   Reply With Quote
Old 10-15-2007, 11:33 AM   #25
Senior Member
 
jage's Avatar
 
Join Date: Apr 2007
Location: Parker, CO
Posts: 7,621
BC, I think your sig should be "Listen to your wife"
__________________
good to be back
jage is offline   Reply With Quote
Old 10-16-2007, 10:18 AM   #26
Senior Member
 
jage's Avatar
 
Join Date: Apr 2007
Location: Parker, CO
Posts: 7,621
I'm only about halfway through but this thread on RV.net has a lot of good Norcold info. The first post says there should only be about 1" of deadspace behind the fridge to draw air over the coils-- makes sense. I wonder how the 3-5" I have, and the big side hole from the driver's seat affects this and if having channeled air would be more efficent than a big airspace...

The second thing I've come across as interesting is he claims the duty/cycle and amp draw is better on 12v only rather than 110v.

http://www.rv.net/forum/index.cfm/fu...d/20303164.cfm
__________________
good to be back
jage is offline   Reply With Quote
Old 10-16-2007, 11:25 AM   #27
Senior Member
 
jage's Avatar
 
Join Date: Apr 2007
Location: Parker, CO
Posts: 7,621
More stuff:

"If you really want to stretch an electric fridge as far as practical for a class B, get a small freezer and run it as a fridge. Freezers have much better insulation than fridges (so they don't sweat). From the data I've seen running a freezer at fridge temperatures should cut typical power costs in half."

http://www.rv.net/forums/index.cfm/f...g/1/page/1.cfm
__________________
good to be back
jage is offline   Reply With Quote
Old 10-16-2007, 11:35 AM   #28
Site Team
 
BroncoHauler's Avatar
 
Join Date: May 2007
Location: Southern New Mexico
Posts: 9,802
Quote:
Originally Posted by jage
More stuff:

"If you really want to stretch an electric fridge as far as practical for a class B, get a small freezer and run it as a fridge. Freezers have much better insulation than fridges (so they don't sweat). From the data I've seen running a freezer at fridge temperatures should cut typical power costs in half."

http://www.rv.net/forums/index.cfm/f...g/1/page/1.cfm
The challenge here would be proper temperature control. I use a full size standalone freezer at home, primarily at refrigerator temperatures, as my beer brewing fermentation control (e.g. ales, lagers). The temperatures are controlled with an independant temperature controller with which I can select a set temperature. This requires a thermocouple inside the freezer.


Herb
__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
BroncoHauler is offline   Reply With Quote
Old 10-16-2007, 01:16 PM   #29
Senior Member
 
jage's Avatar
 
Join Date: Apr 2007
Location: Parker, CO
Posts: 7,621
From Thetford.com (Norcold makers):

Quote:
When AC and DC power are both supplied on a DE refrigerator what mode will the refrigerator operate on?

When both power sources are supplied to the refrigerator it defaults to AC power. When the refrigerator is disconnected from shoreline power and AC is no longer available the refrigerator switches to DC operation.
__________________
good to be back
jage is offline   Reply With Quote
Old 10-16-2007, 05:49 PM   #30
Senior Member
 
Jammyauto's Avatar
 
Join Date: Apr 2007
Location: santa barbara
Posts: 229
My van uses 2 NSB-M12-130 Northstar batteries. http://www.northstarbattery.com/hd_marine.php
I installed both the batteries and the Isotherm ASU fridge. I know that they will run the fridge for a week because I used the van for more than a week before I had the electrical system finished and I had the batteries just temporary wired to the fridge so we could use the fridge.
__________________

__________________
Seth Hatfield
'05 EB350 6.0 4x4
Homebuilt Interior
Santa Barbara Ca
Jammyauto 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

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 03:09 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
×