Forest River Forums
Sunline User Photos


Reply
 
Thread Tools Display Modes
Old 07-28-2011, 08:34 AM   #1
pip
Member
 
pip's Avatar
 
Join Date: Mar 2011
Location: OHIO
Posts: 46
camper ac at home

I have a outside plug next to my camper but I only have 20a breaker, so my question is, so that i can run my ac can I just put a 30a breaker in the panel or do I need heaver wire also, nothing else is on this line & its a 110 plug. do I have to have a 30a box ?

thanks
__________________

__________________
2011 greywolf 26 bh - equalizer 4p
09 f150 super cab 4x4


pip is offline   Reply With Quote
Old 07-28-2011, 08:53 AM   #2
Senior Member
 
RubenZ's Avatar
 
Join Date: Jun 2011
Location: Rio Grande Valley Texas
Posts: 357
You need to find out what Guage the wire is in the box. I believe #10 is good up to 30amp.

If it were me, I would just add another 30amp breaker and put a 30amp RV plug.
__________________

__________________
__________________________________

Ruben Zamora
2007 Silverado 2500HD 4x4 Dmax/Allison, 4" Exhaust-no cat-no muffler
2012 Palomino Puma 23FB
RubenZ is offline   Reply With Quote
Old 07-28-2011, 08:59 AM   #3
Site Team
 
MtnGuy's Avatar
 
Join Date: Sep 2008
Location: Virginia Blue Ridge Foothills
Posts: 7,461
Quote:
Originally Posted by RubenZ View Post
You need to find out what Guage the wire is in the box. I believe #10 is good up to 30amp.
I agree with Ruben.....don't put a 30 amp breaker on anything smaller than a 10 gauge wire !!!

If you have a 13,500 BTU AC, that 20 amp plug may run the AC as long as you use a heavy duty extension cord, the run is not too long, and there is nothing else on electricity in the camper, including the 12 volt items. I ran my AC off of my 20 amp receptacle several times. If the breaker trips, then discontinue use, and get a true 30 amp setup, including box, 10 gauge wire, and a 30 amp GFI.
__________________

Chap , DW Joy, and Fur Baby Sango
2006 Ford F150 Super Cab 4x4
2008 Surveyor 263
MtnGuy is offline   Reply With Quote
Old 07-28-2011, 09:06 AM   #4
Senior Member
 
RubenZ's Avatar
 
Join Date: Jun 2011
Location: Rio Grande Valley Texas
Posts: 357
Ya, it's actually not hard to do. I had to do a similar setup when running a box out to our garage for my 220v welder plug. Not as hard as it seems and is a safer clean option.
__________________
__________________________________

Ruben Zamora
2007 Silverado 2500HD 4x4 Dmax/Allison, 4" Exhaust-no cat-no muffler
2012 Palomino Puma 23FB
RubenZ is offline   Reply With Quote
Old 07-28-2011, 10:02 AM   #5
Senior Member
 
jimh's Avatar
 
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,531
i wouldn't change the breaker either. if all ur wanting to do, at home, is run the a/c and lighting, the 20 amp should carry u. actually, it should carry frig, a/c, and lighting. if u try to add a hw heater or microwave, it will trip.
i camped many years on a 20 amp breaker and ran what i listed above.
on my new (2002 50 amp), i run it on 20 at home. i run each of the a/c units and lighting when i am going to do something in it.
before i go out, i will test both a/c's (seperately) and turn on the frig. the hw heater stays off until i get to the campground.
you may have read that #12 can carry 30 amps but that is under certain conditions and is never fused that high.
leave the 20 amp breaker alone, u shouldn't have any problem keeping the trailer maintained on it.
a 20 amp breaker will carry 20 amps all day long. i don't have my book near me but for short durations, it will carry more than that: if ur slightly over, it may take an hour to trip. the farther over ur r, the less time it takes to trip.
__________________
jimh is offline   Reply With Quote
Old 07-28-2011, 11:02 AM   #6
Member
 
Join Date: May 2011
Posts: 74
20 AMP Breaker

I ran my AC (15K BTU) on my 20amp 110V receptacle the day I brought my new TT home. I had a 50ft heavy duty RV extension cord and the 30ft cord that came with the camper. It ran the AC and lighting just fine. I ran a voltage drop calculator and the drop was around 2-3 volts if I remember correctly. I would like to use an adapter and only the 50ft extension cord (51ft total length) to minimize the voltage drop and run A/C and lighting while setting up for a trip. I cannot afford to cause damage to my AC unit or fridge however. The 64K question is, how much voltage drop is acceptable without damaging the AC or double fridge???
__________________
James and Karen
Warner Robins, GA
2011 Lacrosse 301RLS
2007 Tundra CM 5.7
Reese Dual Cam
jjarrard is offline   Reply With Quote
Old 07-28-2011, 11:39 AM   #7
Senior Member
 
jimh's Avatar
 
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,531
Quote:
Originally Posted by jjarrard View Post
I ran my AC (15K BTU) on my 20amp 110V receptacle the day I brought my new TT home. I had a 50ft heavy duty RV extension cord and the 30ft cord that came with the camper. It ran the AC and lighting just fine. I ran a voltage drop calculator and the drop was around 2-3 volts if I remember correctly. I would like to use an adapter and only the 50ft extension cord (51ft total length) to minimize the voltage drop and run A/C and lighting while setting up for a trip. I cannot afford to cause damage to my AC unit or fridge however. The 64K question is, how much voltage drop is acceptable without damaging the AC or double fridge???
actual voltage drop may vary.
i ran my first trailer on a 100' #12. the wiring i was attached to was also #12 for another 40 or so ft. that's been 10 years ago and i did measure the voltage at the rv w/ac running but i'm afraid i don't remember. what ever it was, it didn't excite me. that would mean i most likely saw either no noticeable drop or the voltage was still above 115v. cord was not warm so it wasn't overloaded.
currently, i run the 2002 on a 30' #12 and still see 120v (did not check the supply).
ur probably calculating worse cases which are hard to see.
i would get concerned if my voltage dropped to under 115v with a 120v supply. i would shut the a/c down if the voltage dropped below 110v regardless of the supply.
what i would go by is the temp of the extension cord and the voltage in the trailer. u r probably going to see the majority of the voltage drops at ur connections and adapters. i wouldn't want either hot. warm ok but not to the point of softening the rubber connector.

two things i would suggest, turn on a 110V light in the trailer then start the a/c; if it makes a slight flicker, that is ok. if it just abt goes out, u have too much drop. measure the voltage w/ac running. if it is abt 5v, even though that is a lot, i would be ok with it.
__________________
jimh is offline   Reply With Quote
Old 07-28-2011, 11:44 AM   #8
Senior Member
 
jimh's Avatar
 
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,531
on the frig, the control boards run off the dc and don't see short term voltage drops ie a/c starting. the heating element, i wouldn't be concerned.
__________________
jimh is offline   Reply With Quote
Old 07-28-2011, 12:32 PM   #9
Senior Member
 
jimh's Avatar
 
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,531
u got my curiosity: i checked mine and had 121v w/convertor on; started a/c and it dropped to 117v. did the light flicker routine and had a small flicker when a/c started. it's been too many years sense i did that with my last trailer so i really don't remember. this trailer uses a #12 20 or so ft extension cord, two adapters to get from 115v reciptical to 50 amp power cord. in the past, the adaptors is what got warm so i suspect the majority of the drop is there. recptical is abt 15' from home breaker box and is also #12.
a/c started quickly so i am not concerned.
__________________
jimh is offline   Reply With Quote
Old 07-28-2011, 12:48 PM   #10
Senior Member
 
trudinator's Avatar
 
Join Date: Mar 2011
Location: Wisconsin
Posts: 1,189
We're running ours on a 20 amp. We'll eventually put in a separate breaker and box, but for now, it's working okay. Good thing too....our A/C is out at home, so we're sleeping in the TT!!!
__________________

__________________
2012 Rockwood 8293RKSS
2006 Dodge Ram 2500 5.9L Cummins Turbodiesel 4x4
2002 Dodge Durango 4.7L 4x4
Days camped: 2011: 61; 2012: 66 Days; 2013: 69; Days camped 2014: 12
trudinator 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






ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:11 AM.


Forest River RV News right to your Email!

Stay up-to-date with Forest River news to your inbox

unsusbcribe at anytime with one click

Close [X]