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Old 08-29-2012, 08:49 PM   #1
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1986 29' Sovereign
North Texas , Texas
Join Date: Aug 2012
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New guy. Need help!

I have been lurking some time now and have really learned a bunch! I have a 1986 29' soverign and am replacing the hum box with a intelipower 9130. There were three wires coming out of the old univolt, a big red one that went to the battery cut off switch, a big white one that goes in the wall (it looked like it was hooked up as a ground in the old unit), and a smaller black wire that goes into the wall. My question is, what is the black wire and where do I hook it up-positive or neg? There was also a ground wire on the outside of the unit. I know where that one goes.

Thanks for your help.
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Old 08-29-2012, 09:08 PM   #2
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1983 34' Excella
1967 24' Tradewind
Little Rock , Arkansas
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Originally Posted by Onawayman View Post
I have been lurking some time now and have really learned a bunch! I have a 1986 29' soverign and am replacing the hum box with a intelipower 9130. There were three wires coming out of the old univolt, a big red one that went to the battery cut off switch, a big white one that goes in the wall (it looked like it was hooked up as a ground in the old unit), and a smaller black wire that goes into the wall. My question is, what is the black wire and where do I hook it up-positive or neg? There was also a ground wire on the outside of the unit. I know where that one goes.

Thanks for your help.
The short answer is that you don't hook it up.

The original univolt had a connector that powered a bulb in the control panel when you were plugged into AC. Newer converters don't have this connector. Some owners have used a wall wart that converts AC to 12v DC, plunged it into an AC outlet and connected it to that connection. Others have found that a night light plugged into one of the AC outlets serves the same function. I keep a digital AC voltage monitor plugged into an outlet, myself. Heck, that light never worked in my control panel anyway.

Oh, welcome to the forums too!
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Old 08-31-2012, 04:23 PM   #3
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1986 29' Sovereign
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Hooked up last night. Works great! Thanks for the help!
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Old 08-31-2012, 08:16 PM   #4
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1983 34' Excella
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Little Rock , Arkansas
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Glad I could help out.

Now, how about some photos of your new Airstream?
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Old 09-30-2012, 05:13 PM   #5
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1978 25' Tradewind
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Originally Posted by vswingfield View Post
The short answer is that you don't hook it up.

The original univolt had a connector that powered a bulb in the control panel when you were plugged into AC. Newer converters don't have this connector. Some owners have used a wall wart that converts AC to 12v DC, plunged it into an AC outlet and connected it to that connection. Others have found that a night light plugged into one of the AC outlets serves the same function. I keep a digital AC voltage monitor plugged into an outlet, myself. Heck, that light never worked in my control panel anyway.

Oh, welcome to the forums too!
You could always get a 120VAC relay, and switch the 12VDC to that wire when the 120 is on... if you were a geek like Some People I Know.
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