RV.Net Open Roads Forum: Running both A/C's on split 30 Amp service

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Help and Support  |  Contact

Search:   Advanced Search

Search only in Class A Motorhomes

Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Running both A/C's on split 30 Amp service

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev
Sponsored By:
kmb1966

Lake Charles

Senior Member

Joined: 09/18/2005

View Profile


Offline
Posted: 06/04/12 08:26pm Link  |  Quote  |  Print  |  Notify Moderator

I have the power solutions junction box. When running on the generator, the junction box switch is on and the pigtail is plugged into the junction box. When at a camprground, I plug the 30 amp shore cord into the pedestal as usual, and I plug a 20 amp extension cord into the junction box where the pigtail is plugged in normally, and plug the other end of the extension cord into the 20 amp service at the campground.
Also, this setup allows me to run both a/c's at the same time at my house from 2 separate 20 amp circuits. Right now my motorhome is plugged in to 2 separate 20 amp outlets at my house. Both A/Cs working with about 7 amps to spare.

Jim@HiTek

Gresham, OR, USA

Senior Member

Joined: 07/17/2004

View Profile


Offline
Posted: 06/04/12 08:31pm Link  |  Quote  |  Print  |  Notify Moderator

JimGo wrote:

I plug into my home on a 30A circuit and can run both 13,500 AC's. Same at CG.
Might be a difference between a 1994 and 2007?


The difference is probably a load sharing center. That device times the start times of the ACs so if one is running it's compressor, the other can't for a time. The compressor, when it starts, can require 3 to 5 times the run current. If you turn on the MW, it will shed a load to allow it, like an AC. This 'Load Shedding' and 'Load Sharing' is what allows you to run both at the same time, and probably turn on the MW as well.

If you listen carefully, you'll not hear both compressors running at the same time.

Also, newer ACs are more efficient and draw less current.


Jim@HiTek
Have shop, will travel!
Visit my travel & RV repair blog site. Subscribe for emailed updates.
Fleetwood Bounder, '94
Cummins Diesel, 190HP, 36.5' with 50HP LP boost.
Black Rock Lava Park, Nevada


Jim@HiTek

Gresham, OR, USA

Senior Member

Joined: 07/17/2004

View Profile


Offline
Posted: 06/04/12 08:37pm Link  |  Quote  |  Print  |  Notify Moderator

kmb1966 wrote:

I have the power solutions junction box. Snip...


I believe that the company that made that device for RVs went out of business. If you have a current link, I'd be interested in checking that product out. Maybe I heard wrong...but checking google for it didn't get me anywhere.

huntram

Fulltiming in the RV

Senior Member

Joined: 12/26/2004

View Profile



Good Sam RV Club Member

Offline
Posted: 02/21/13 08:13am Link  |  Quote  |  Print  |  Notify Moderator

Google 'JTB Power Solutions'. They are in business! I just installed it yesterday and WOW! To test it, I ran the fireplace, the water heater, the fridge, the parabolic dish heater on high, and the microwave all at one time hooked up to 30 amp and the 20 amp cfgi plug. I was impressed. To top it off, the volts were only at 114 when I started turning things on! Time will tell, but so far so good!
Brian

Jim@HiTek wrote:

kmb1966 wrote:

I have the power solutions junction box. Snip...


I believe that the company that made that device for RVs went out of business. If you have a current link, I'd be interested in checking that product out. Maybe I heard wrong...but checking google for it didn't get me anywhere.



Our traveling blog:Brian and Patty's Awesome Adventure
2004.5 Dodge Ram 2500 Quad Cab 4-door CTD, , 2011 Carriage Cameo 32FWS 5th wheel. Piaggio BV250


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev

Open Roads Forum  >  Class A Motorhomes  >  General Topics

 > Running both A/C's on split 30 Amp service
Search:   Advanced Search

Search only in Class A Motorhomes


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2013 RV.Net | Terms & Conditions | PRIVACY POLICY | YOUR PRIVACY RIGHTS