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Old 04-11-2015, 07:11 PM   #31
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Originally Posted by Scoutr2 View Post
It's not so much the amperage draw that harms the A/C compressor motor, but the voltage draw. I burned up a compressor at a campground in KY because of low voltage.
You are correct, but plugging in a TT into a home receptacle generally won't produce a low voltage problem, since most houses don't have really long electrical runs. The heavy gauge cable to the TT should not cause any significant voltage drop as long as you don't add extensions. Even so, I would normally only use a circuit wired with #12 wire on a 20 amp breaker at my house.

It would be prudent to check the voltage in the TT before starting the TT at any outlet, then starting the A/C and seeing if the voltage drops more than just a few volts.

At campgrounds, I always check the polarity, grounding and voltage before my TT gets plugged in. I also turn off the breaker in the electrical post before connecting or disconnecting my TT.
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Old 04-11-2015, 07:47 PM   #32
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Most domestic appliances are designed to operate within + - 10% of their rated voltage. A 120 volt rated appliance should operate satisfactorily between 108 to 132 volts. You should always check for voltage drop with the load on, like the AC unit. An inexpensive digital volt meter would work fine.
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Old 04-11-2015, 08:51 PM   #33
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Originally Posted by Jim-n-Ash View Post
X2. We keep ours plugged in all the time, mainly because we aren't sure how to disconnect the batteries and don't like being wakened at 2 a.m. with the batteries-are-low shriek the thing gives off! (We don't have air co on our current unit, and don't plan to use it on the new one, but we do like cooling the 'fridge a few hours before we pack to go.)
Seriously? Most batteries have wing-nuts over the battery cables. Just take the wing-nut off the positive (red wire) and BAM you have unhooked your battery.
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Old 04-11-2015, 10:09 PM   #34
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Seriously? Most batteries have wing-nuts over the battery cables. Just take the wing-nut off the positive (red wire) and BAM you have unhooked your battery.
Or just take the 30 amp fuse out.
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