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10-01-2015, 12:51 PM
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#21
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by donjbray56
Not sure what the problem is with running it from 110V 15 amp circuit. It is the same voltage as the 30 amp circuit. The only thing that will happen is that the breaker will trip if you draw more than 15 amps. How does it hurt the refrigerator?
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A 15 amp circuit is not wired heavy enough .
TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "27 nights"
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10-01-2015, 01:37 PM
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#22
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Senior Member
Join Date: Feb 2013
Location: Pfafftown NC
Posts: 2,353
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Quote:
Originally Posted by donjbray56
Not sure what the problem is with running it from 110V 15 amp circuit. It is the same voltage as the 30 amp circuit. The only thing that will happen is that the breaker will trip if you draw more than 15 amps. How does it hurt the refrigerator?
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it all boils down to voltage drop. If you run an appliance with a motor or compressor on too small a circuit the voltage will drop. When that appliance gets low voltage it tries to make up for the low voltage by drawing more current, amps. More amps makes much more heat in the appliance and that wears out the appliance MUCH quicker. All that can happen without ever tripping a breaker.
__________________
There are 10 types of people in the world.
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2013:31 / 2014:51 / 2015:58 / 2016:37 / 2017:46
2018:16
Total 239
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10-01-2015, 01:53 PM
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#23
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Junior Member
Join Date: May 2015
Location: Perrysburg OH
Posts: 16
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So, my 15 amp circuit (with 12-2 wire) will have a 3% voltage drop at 50 feet, I am at half that distance, so say less than 2% and since my voltage is 118V, I think I am good.
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10-01-2015, 02:02 PM
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#24
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Phat Phrog Stunt Team
Join Date: Aug 2011
Location: Iowa
Posts: 34,507
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Quote:
Originally Posted by donjbray56
So, my 15 amp circuit (with 12-2 wire) will have a 3% voltage drop at 50 feet, I am at half that distance, so say less than 2% and since my voltage is 118V, I think I am good.
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Under ideal conditions sure.
Heat and humidity isn't figured in
TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "27 nights"
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10-01-2015, 02:32 PM
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#25
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Senior Member
Join Date: Jan 2013
Location: Space Coast of Florida
Posts: 4,021
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Quote:
Originally Posted by TURBS
A 15 amp circuit is not wired heavy enough .
TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "27 nights"
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Well I hope a 15 amp circuit is wired heavy enough for 15 amp and probably if your house is wired to code ( now the key word here is "probably") then the wire required is more than needed to supply just 15 amps.
I guess I will run mine until it burns up or my house burns down.. Actually I don't think either will happen..
__________________
2016 Siverback 33IK, Towed 50K+ mile
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
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10-01-2015, 04:46 PM
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#26
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Senior Member
Join Date: Sep 2015
Posts: 158
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AC on limited amperage
Over the years I've had times when I didn't have all the current I wanted and the weather was very hot. If you need to run the system on 15 or 20 amps just make sure that other electrical items are off and you might even want to disable the 12 volt converter/charger if things are close. The AC on most trailers draws between 11 and 15 amps and will operate down to about 100 volts without problems. Keep your extension cords as short as possible and they should be heavy enough for the load. - Have a cool night.
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10-01-2015, 09:48 PM
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#27
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Senior Member
Join Date: Jul 2015
Location: Where the stars at night are big and bright
Posts: 970
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Quote:
Originally Posted by elind
What happened to the 120 volt system in the house?  |
They are nominally 120 volts. Check your outlets with a volt meter. Many call it 110. Whatever floats their boat.
I run the A/C and fridge on 15 amp at home to prep for a trip until I can afford to have an electrician install a 30 amp plug.
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10-01-2015, 10:14 PM
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#28
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Done with this
Join Date: Aug 2014
Location: KY
Posts: 698
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I have been told not to run the a/c on anything but a 30 amp circuit. I didn't ask why, just listened to the advice. They said damage will occur. 
__________________
I'm a little too truthful, I guess.
Y'all have fun in "Fantasy Land".
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10-02-2015, 01:01 AM
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#29
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Always Learning
Join Date: Nov 2011
Location: Four Corners, FL
Posts: 21,891
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Quote:
Originally Posted by Evereddie
it all boils down to voltage drop. If you run an appliance with a motor or compressor on too small a circuit the voltage will drop. When that appliance gets low voltage it tries to make up for the low voltage by drawing more current, amps. More amps makes much more heat in the appliance and that wears out the appliance MUCH quicker. All that can happen without ever tripping a breaker.
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Would this be reflected in a hard-wired PI EMS display?
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10-02-2015, 07:38 AM
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#30
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Senior Member
Join Date: Feb 2013
Location: Pfafftown NC
Posts: 2,353
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Quote:
Originally Posted by ependydad
Would this be reflected in a hard-wired PI EMS display?
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Absolutely. If you were plugged into a weak circuit the voltage would readout low. The EMS is set so that if the voltage was too low it would shut off all the power. Mine protected me from low voltage at the beginning of camping season this year. We got the campground electrician out there and he fixed something and then we had good power.
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