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Old 04-15-2015, 12:13 PM   #11
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I have been plugged into a dedicated 20 amp with no extension cord for a couple years. I can run the A/C, fridge and converter, but little else. I shut off the A/C when I need the microwave or coffee pot. I couldn't imagine trying a 15 amp circuit with an extension cord. Especially if it wasn't dedicated.


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now there you go...20 amp service WITH refer. subtract that 3+ amps and your close with a 15. get the RV cord and the bakalite adapter.
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Old 04-15-2015, 12:23 PM   #12
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now there you go...20 amp service WITH refer. subtract that 3+ amps and your close with a 15. get the RV cord and the bakalite adapter.
Even if they use the (Stock 30'RV cord) they still must buy a (30'RV Cord) to plug into the (40' away) 15A plug! So they have a (60' RV cord)! I say this Because they can Buy a (30' RV cord) Cheaper than (Making up a (10' RV cord ) yourself! Youroo!!
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Old 04-15-2015, 12:25 PM   #13
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What size AC do you have?
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Old 04-15-2015, 12:26 PM   #14
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If you really need it it 'might' be possible to run the A/C.

1) Use an RV 30a extension cord, not a 15a one. Plug in with adapter right to outlet. This will help minimize the line loss.

2) Only run the fridge and hot water on gas. No electric.

3) Using the circuit breakers, shut down all the circuits except the A/C. This especially includes the convertor.

4) To keep your batteries from running down, either:

A) hook them up to a dedicated battery charger. Making sure to plug them into a different circuit than the one your trailer is using.

B) be selective. Only run the A/C during the day when it's hotter and at night turn off the A/C and turn on the convertor. You'll want to monitor to make sure you're using the convertor long enough to get a good charge and replenishing what you used throughout the day.

Note that even with these precautions, you might still end up tripping the house's 15a circuit. As a Turbs pointed out above, startup of the ac's compressor can peak to 18a, which will trip the breakers (if it peaks that high).








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Old 04-15-2015, 12:48 PM   #15
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Don't forget that the outlet you are plugging into may have other things already running on it. If your A/C is running and someone hits the garage door opener, the breaker in the house may trip.

The starting load of the A/C will be the problem. Running the fan on low won't help that.

Some have stated you need a 30 amp cord. What wasn't mentioned is that means 10 awg (gauge) conductors with a ground.
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Old 04-15-2015, 01:12 PM   #16
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you could always run a small geni during the hot part of the day until it cools off.
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Old 04-15-2015, 01:15 PM   #17
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you could always run a small geni during the hot part of the day until it cools off.
I'd agree!

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Old 04-15-2015, 01:49 PM   #18
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60 ft of 10 ga is fine. just start the AC on low to reduce start up loads. the rotaries of today are nothing like the start up loads of the piston compressors. I like the idea of a battery charger supplement off a different circuit. chill the coach in the morning to help it through the day if possible. if not, visit family and see sights during the day and cool it at night. Personally Id check the circuit for 12ga wire and bump the breaker to 20 amp if necessary but there is NO WAY I could advise that here...
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Old 04-15-2015, 01:59 PM   #19
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Before I would Buy a Gen that would power A/C$$! I would have a (Cert.For RV Elect. and Home Electrician) run a 30A RV outlet for the RV! Youroo!! No Guesswork /Safe/ and Mama has A/C!
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Old 04-15-2015, 02:02 PM   #20
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The RV is equipped with a 30A connection. I will be using house current @ 15A
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