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Old 03-27-2011, 12:48 PM   #1
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Help - Replacing Univolt - Which Wires?

I have a Progressive Dynamics 9245 and want to wire it in my 65 Safari. The original univolt has the following wires:

top hole - large white, large blue & med. red.
bottom hole - large red, med. blue.
these all go to my fuse blocks.

Which of these two sets go into the + on the PD 6245?
and which go into the - ?

AC is no problem.

Any help is appreciated,
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Old 03-27-2011, 12:57 PM   #2
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Some guys helped me wire up mine. The thread starts slow but picks up toward the end..
http://www.airforums.com/forums/f449...l-74038-2.html
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Old 03-27-2011, 01:15 PM   #3
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DanielB - Thanks but I'm still confused. I was under the impression that the top group of wires that I listed above would go into either the positive or negative on the PD 6245. The bottom group would then attach to the other. The orginal univolt is still attached and working. Just does not charge battery anymore. Still need help.
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Old 03-27-2011, 01:55 PM   #4
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Wiring

If you have a volt/ohm meter, you can check the polarity of the unit. The multi colored wires you listed make it rather difficult to determine. Can you post some pics? Is it possible to trace the wires that go to the battery? This will tell you the polartiy as well.
Are the wires you describe only attached to the positive and negative terminals on the univolt. The univolt should provide power to a distribution block where the branch circuits eminate from. I have attached a basic wiring diagram that shows generally how one is wired.
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Old 03-27-2011, 02:09 PM   #5
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I don't know anything about the Univolt. Maybe it is hooked up differently than the new converter.
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Old 03-27-2011, 02:57 PM   #6
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Tim

I have a 66 TW. The red and blue wires go to the positive terminal and the white wire goes to the negative terminal. I also grounded mu convertor.

Here is a photo.

Dan
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Old 03-27-2011, 03:03 PM   #7
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Tim

I have a 66 TW. The red and blue wires go to the positive terminal and the white wire goes to the negative terminal. I also grounded mu convertor.

Here is a photo.

Dan
Dan - Thanks for the pic. I have attached a couple of pics of my univolt and my block. Any idea what the extra wires are coming from the univolt.

Thanks,
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Old 03-27-2011, 03:39 PM   #8
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Tim

Great pictures. The fuse block looks just like mine. The blue, red and white wires on mine go to the converter. I don't seem to have the extra blue and red wire that you have. I guess that I would open up the univolt and see where the wires go. I suspect that all the red and blue wires may go to the positive terminal and the white wire to the negative terminal. You could also disconnect the wires from the univolt and check the voltage from each wire to ground. If you don't have a small digital voltmeter, I would get one from some place like Autozone or Advance Auto.

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Old 03-27-2011, 03:46 PM   #9
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Dan, thanks for the info. Tomorrow I will open up the univolt and see whats up. I agree that probably all the blue and red go to positive and whites go to negative. The one that confuses me is the med. black wire coming out of the univolt.
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Old 03-27-2011, 05:04 PM   #10
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In the bottom photo you posted the White wire is the negative and the Red wire is the positive. The multiple terminals on the strip on the upper right are grounded to the skin of the trailer simply because there is no insulating barrier between the terminal strip and the skin. Some where in your trailer there should be a panel with more fuses than what are shown in the photos. The two fuses shown are much too large to protect individual circuits.
Does the black wire that goes into the chunk of garden hose go to the battery?
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Old 03-27-2011, 05:27 PM   #11
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In the bottom photo you posted the White wire is the negative and the Red wire is the positive. The multiple terminals on the strip on the upper right are grounded to the skin of the trailer simply because there is no insulating barrier between the terminal strip and the skin. Some where in your trailer there should be a panel with more fuses than what are shown in the photos. The two fuses shown are much too large to protect individual circuits.
Does the black wire that goes into the chunk of garden hose go to the battery?
The black wire in the garden hose goes all the way up front to the 7 way and is live (12 volt power). I think it was added to power a 12 volt light in the back of PO van or it is a charge line. There is 2 screw in fuses in the back of the univolt. There is breakers in the closet for the 110 and AC. If there are more fuses I don't know where they are hiding. I've been through the entire trailer during the updating/restoration. I didn't mess with the univolt at the time as it was working. It still works just doesn't charge. Any help is appreciated.
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Old 03-27-2011, 06:06 PM   #12
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The Black wire sounds like the charge line from the TV. The 2 screw in fuses sound like branch circuit protection. When you open it up, I think that's waht you will find. If you want to test it before you open it up. Turn the lights on in the trailer and see what goes off when you take the fuses out.
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Old 03-27-2011, 06:24 PM   #13
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Originally Posted by TG Twinkie View Post
The Black wire sounds like the charge line from the TV. The 2 screw in fuses sound like branch circuit protection. When you open it up, I think that's waht you will find. If you want to test it before you open it up. Turn the lights on in the trailer and see what goes off when you take the fuses out.
You are correct the 2 screw in fuses are circuit protection. I had to replace them when I found the trailer. I agree the black wire is the charge line from the TV. I still can't determine what the black wire is that comes out of the univolt. I will open it up tomorrow and see what I find. I might just cut all the wires from the univolt and connect to the PD 6245. Reds and Blues positive and whites negative. Just not sure bout the black wire.

Thanks,
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Old 03-27-2011, 06:31 PM   #14
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I wouldn`t use that black wire in the garden hose as a charge line . It is way too small.
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