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Old 10-04-2006, 11:56 PM   #15
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Aerowood -- I would love to tag up! I don't think I know how to PM, though? Is that personal mail? Anyways, let's get together here in D-Town when you are back and available!
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Old 10-05-2006, 12:08 AM   #16
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Great news, everybody! I went and took some pictures and explored this mysterious silver box a bit more. And the answer is.......

......it's a "Converter Box". Yes, my '63 Safari has a converter box installed between the breaker panel and battery. I believe it's purpose is to provide power to the furnace, whether 110V or 12V. I've added some pics to the bottom of this string -- take a look, let me know your thoughts.

If you look at the wiring diagram, it is clear that 110V power comes into the box through the "twin black wires" and 12V comes into the box through the (1) black wire (that is currently disconnected). Then it leaves the box via the red and yellow wires and heads off to the furnace, stopping at a switch first. What is interesting, though, is that there is one 3-position switch under the sink that is not labeled, and another 3-position switch on the furnace that is labeled "ON - 115V A.C. or OFF or ON - 12V D.C. Battery Only". Why are there two switches for the furnace?

Oh, and by the way -- the converter box is still hot. I found this out tonight working with the power on. One of the "nuts" touched the side of the metal box and sparked!

So, do I need this box ONLY if I want to run the furnace off of the battery power???
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Old 10-05-2006, 04:55 AM   #17
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Aaron,
If you run a search under Univolt you will get good general information. Typically a Converter (what you have) "converts" 110v ac current to 12v dc. It will run the furnace blower, water pump (if you have one) and any 12v lighting you happen to have. In many cases it also charges the battery when you are plugged in. Unless you are doing a restoration, and want to keep everything totatly orginal I would consider the possibility of upgrading to a newer unit.

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Old 10-05-2006, 05:49 AM   #18
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Quote:
Originally Posted by DenverAaron
I don't think I know how to PM, though? Is that personal mail?
PM= Private Message. If you want to send a Private message, or PM, find the user name you want to PM, click it, and scroll down through the options until you find the area that says: "send a private message to xxxxx", and click on it. It will open a screen similar to what you use to type a reply in a thread. Type your message, and hit the "send" button below the window, and you're off to the races. A search of the forum support and how-to's goes more in-depth.
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Old 10-05-2006, 09:22 AM   #19
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So if I understand this correctly, this "power converter" box is bringing in 110V power from my breaker panel and stepping it down, or "converting" it to 12V so that my 12V fixtures (furnace, water pump, etc.) can operate while I am plugged into the grid. Is this a correct assessment? Is my heater really a 12V unit?
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Old 10-05-2006, 10:12 AM   #20
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Yes the heater runs on 12 volts. Also the converter converts the power from AC to DC.
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Old 10-05-2006, 04:19 PM   #21
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Dumb question

What's the difference between a converter and an inverter? Besides "con" turning to "in".
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Old 10-05-2006, 05:01 PM   #22
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Elementary

Quote:
Originally Posted by dmaiden
What's the difference between a converter and an inverter? Besides "con" turning to "in".
A CONverter converts 110V to 12V.
An Inverter inverts 12V to 110V.
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Old 10-05-2006, 05:02 PM   #23
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Thanks

I knew it was a dumb question. I need some fried Spam. Brain food.
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Old 10-05-2006, 06:05 PM   #24
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Quote:
Originally Posted by DenverAaron
So if I understand this correctly, this "power converter" box is bringing in 110V power from my breaker panel and stepping it down, or "converting" it to 12V so that my 12V fixtures (furnace, water pump, etc.) can operate while I am plugged into the grid. Is this a correct assessment? Is my heater really a 12V unit?
Debateable after seeing the picture of the switch on yours. My unit is most defintely a 12 volt unit. Hopefully someone that is more familar with the vintage of trailer you have. I am more of a 70's guy

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Old 10-05-2006, 08:57 PM   #25
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Actually, the heate IS a 12V unit. Says so on the front panel. I'm still confused about the extra switch wired between the heater and converter box?
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Old 10-05-2006, 09:11 PM   #26
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Quote:
Originally Posted by DenverAaron
Actually, the heate IS a 12V unit. Says so on the front panel. I'm still confused about the extra switch wired between the heater and converter box?
It supplies 12v for the heater so it doesn't run your nonexistant battery dead.
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Old 10-05-2006, 10:56 PM   #27
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Terry -- you're absolutely right! I'm looking at my home-made 1-line diagram, and it all makes sense. Back before the furnace switched over automatically, I guess the trailer owner needed to flip the switch manually to control 110VAC vs. 12VDC. Thanks!
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