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Old 09-04-2010, 08:23 AM   #1
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How many 12V circuits

I have no idea how many circuits my 67 Tradewind had originally, but was wondering how many I should plan on.
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Old 09-04-2010, 08:34 AM   #2
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Quote:
Originally Posted by SilverHoot View Post
I have no idea how many circuits my 67 Tradewind had originally, but was wondering how many I should plan on.
SilverHoot,

I would think that a 67 had 2 maybe 3- 12 volt circuits and two 110 circuits. I have never seen more than two in that year.
Your question is kind-of open. Are you re-wiring your unit and can do it any way you want???? Like you have the inside panels out???

Dan
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Old 09-04-2010, 09:06 AM   #3
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Dan,

Yes I have a clean slate all interior panel are removed.
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Old 09-04-2010, 10:42 AM   #4
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We're putting in 9, all 20 amp except the propane detector which will be 5. Colors show the wire color for that circuit. Overkill? Possibily

1 propane detector
2 blue Fridge
3 yellow furnace
4 red water pump/H2O heater
5 green 12 v outlets/TV ant
6 purple Lights/Range hood
7 brown Forward Lights
8 pink Roof vents
9 orange Bath lights & vent

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Old 09-04-2010, 10:54 AM   #5
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no overkill in my opinion. splitting things up will pay you back many times over when troubleshooting.

(hijack) has anyone run one heavy 12v feed with a fuse panel mid trailer to reduce voltage drop? i guess this might be limited to the longer units.
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Old 09-05-2010, 06:47 AM   #6
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trouble shooting

Quote:
Originally Posted by SilverHoot View Post
I have no idea how many circuits my 67 Tradewind had originally, but was wondering how many I should plan on.
SilverHoot,

I have to agree with richinny, "splitting things up will pay you back many times over when troubleshooting. " I would put as many as your converter will allow.
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Old 09-05-2010, 07:21 AM   #7
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I use color codes too. I use the over kill theory on numbers installed.
AND, I run grounds from all outlets to a central bus.
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Old 09-05-2010, 08:56 AM   #8
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Dan,

I also have not purchased a converter yet. Care to make a recommendation on amperage?
Thanks, Melody Ranch, I will run common/grounds to a separate bus also. How many circuits do you use in your over kill theory? I like over kill when affordable.... much more than regret.
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Old 09-06-2010, 06:08 AM   #9
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converter

Quote:
Originally Posted by SilverHoot View Post
Dan,

I also have not purchased a converter yet. Care to make a recommendation on amperage?
.
I would get a 60 Amp. Even though we are moving toward more efficient products like thin screen TVs and LED lights we are always coming up with more power consuming products.

I would also make sure to install a 12 volt power plug like in your car/truck. It seems like you will most likely need one with all the gadgets that use 12 volt power.
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Old 09-06-2010, 10:45 AM   #10
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Hi Silverhoot,
For comparison purposes, my '72 Sovereign (31 ft) has five 12v circuits:
1. Control Panel/Radio
2. Living Room
3. Kitchen
4. Bedroom
5. Bathroom

That system works pretty well and really simplifies troubleshooting.

On the other hand, My '58 Overlander (26 ft) has only one 12v circuit, but there are only 4 lights on the circuit (this was the first year Airstream installed a 12v system). I'm going to add two more 12v circuits as follows:
1. Radio, 12v power point (to charge IPOD and cell phones), and two 12v reading lights, propane leak detector
2. Bedroom 12v reading lights, 12v water pump, compartment 12v light, CO2 detector

A Fantastic Vent fan will be added to the existing 12v circuit.
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Old 09-06-2010, 12:26 PM   #11
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since you have a clean slate, maybe we can post what we'd like in an ideal world and you can adjust it to your needs. here are some of my ideas.

some items you'd like to not take anything else out with it if the fuse blows.
1)refrigerator
2)water heater
4)air conditioner
5)tongue jack
6/7/8)parking, turn & backup lights
9)furnace
10/11)20A 12v accessory outlets:
1 in a storage compartment wire with compartment lights
2 inside sharing one fuse
12)ceiling vent fan(s)
13/14)the interior lighting i would split between ceilng and overhead lights so if one blew, you wouldn't be in total darkness.
radio could be sub-fused at the radio
15)water pump

what have i forgotten?
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Old 09-06-2010, 03:30 PM   #12
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Here is what I have on my 12 V distribution panel.

18 slot Progressive Dynamics Panel
LP/CO DETECTOR 5A
CURB SIDE BED LTS 10A
ANT AMPLIFIER 5A
REAR FAN 10A
REFRIG CONTR 5A
ENTRY LT 5A
WTR HTR SWITCH 10A
MACERATOR RELAY 10A
A/C CONTROL 10A
STR SIDE BED LTS 5A
BATH EXHAUST FAN 20A
MACERATOR PUMP 20A
FURNACE CONTR 20A
FRONT LTS 20A
WATER PUMP 20A
PWR TAP CURB SIDE 20A
PWR TAP STR SIDE 20A

I also have a gang of circuit breakers in the battery cabinet.

To: 12V fuse panel 50A breaker
To: 400 W inverter 40A breaker
To: Power Jack 20A breaker
From: Intellipower 50A breaker
From: TV Charge line 30A breaker

And a separate box at the umbilical connection.

Left Signal 15A
Right Signal 15A
Running Lts 15A
Backup Lts 15A
Brake Pwr 20A
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Old 09-06-2010, 05:34 PM   #13
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Michael,

There were 3 original circuits in my 68 TW. Two for lights and a separate one for the AC. My box had a knock out for a 4th breaker and I added another one last week for the 110V/Propane water heater. Since I did not want to remove all the interior panels, I was stuck with the original "Control Center" in the galley over the fridge.
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