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Old 07-16-2013, 02:53 AM   #1
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I have decided to install a second AC in my 30 RE. I plan to run the new AC on a separate power source that I could plug into the 20 amp on a pedestal. I think I plan run power from my bedroom vent over thru ceiling to closet then down to my pass-thru storage. I will put a plug and connection in there.

Any words of wisdom or ideas ? I am open to ideas.

Thanks
Paul
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Old 07-16-2013, 10:29 AM   #2
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Make sure the roof rafters have enough support to hold the weight. .
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Old 07-18-2013, 06:33 AM   #3
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Good advice, I think everything is good in that area, but will look at it real good again before the install.

Thanks
Paul
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Old 08-15-2013, 06:49 AM   #4
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I just finished up installing the new air in my bedroom. What a difference ! Everything went smooth. I am ready for the 100 degree plus temps now.

Paul
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Old 08-15-2013, 06:55 AM   #5
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Come on down, we have plenty of 100* + temps for you to try it out in.
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Old 08-15-2013, 06:59 AM   #6
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Hunter, we have plenty of our own . Although this summer is much better than the previous three.
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Old 08-18-2013, 04:29 PM   #7
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Pnr... Any tips or words of wisdom from your install? I'm particularly interested in how you routed the power supply.
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Old 08-19-2013, 12:25 AM   #8
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One of the harder parts of the project was removing the sealant from around the vent. VERY sticky , just took time and elbow grease.

I ran 10 gauge stranded wire, in a split wire loom across the roof, secured to the bathroom vent, then over to the fridge vent and down the wall. And no ,you cant see the wire unless you are up on a ladder looking at the roof.

I oriiginaly was going to run wire from vent opening, to closet ,down closet to pass-thru storage. There was a rafter truss that stopped that plan. Instead of removing the ceiling panels and having problems with them, I decided to go the way I did.

Worked very well. Tried it out this weekend and it will freeze me out.
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Old 08-20-2013, 08:48 AM   #9
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Plug I installed for the second ac.




Edited by: Pnr
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Old 08-20-2013, 08:52 AM   #10
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View of the unit.

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Old 08-20-2013, 08:54 AM   #11
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Inside view.


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Old 08-20-2013, 02:30 PM   #12
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I bet that is going to be one cold bedroom.
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Old 08-21-2013, 11:41 AM   #13
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Quote:
Originally Posted by Pnr
One of the harder parts of the project was removing the sealant from around the vent. VERY sticky , just took time and elbow grease.

I ran 10 gauge stranded wire, in a split wire loom across the roof, secured to the bathroom vent, then over to the fridge vent and down the wall. And no ,you cant see the wire unless you are up on a ladder looking at the roof.

I oriiginaly was going to run wire from vent opening, to closet ,down closet to pass-thru storage. There was a rafter truss that stopped that plan. Instead of removing the ceiling panels and having problems with them, I decided to go the way I did.

Worked very well. Tried it out this weekend and it will freeze me out.
I have a few questions.

What is a split wire loom?
And what type of wire did I you run in it? #10 THHN stranded or solid.
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Old 08-21-2013, 11:43 AM   #14
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Ok I Googled split wire loom. Did you run this outside or you fished it inside the ceiling?
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Old 08-21-2013, 12:53 PM   #15
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Ok I Googled split wire loom. Did you run this outside or you fished it inside the ceiling?
Bert , I ran 10 guage stranded wire.

The wires run from the ac down the middle of the roof to the bathroom vent , it is secured there to the bathroom vent, from there it runs straight to the refrigerator vent and down the wall.

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Old 08-21-2013, 12:59 PM   #16
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If its on the roof exposed to the elements it won't last. That split loom is for low voltage wiring and not to be exposed. Also the wire when subjected to heat like that it needs to be derated. So #10 THHN will not handle 30 Amps.
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Old 08-21-2013, 02:01 PM   #17
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Quote:
Originally Posted by Bert
If its on the roof exposed to the elements it won't last. That split loom is for low voltage wiring and not to be exposed. Also the wire when subjected to heat like that it needs to be derated. So #10 THHN will not handle 30 Amps.
I hate to say it but the split loom is not a good choice. There are other products like Convoshield which are rated for automotive use that would hold up much better. I believe your 10 gauge wire is fine since you won't be pulling 30 amps and have it protected on a 20 amp circuit.
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Old 08-21-2013, 02:03 PM   #18
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Quote:
Originally Posted by Bert
If its on the roof exposed to the elements it won't last. That split loom is for low voltage wiring and not to be exposed. Also the wire when subjected to heat like that it needs to be derated. So #10 THHN will not handle 30 Amps.

The trailer is in my enclosed barn 99% of the time, so Im not too worried about the wire degrading.

The loom I used is rated for uv exposure.So the 1% of the time it's out of the barn I think it will last as long as I plan to own it.

Have you ever looked on top of trailers who have solar panels ? Wires everywhere.

Where did you come up with 30 Amps ?

The 10 guage is running off the 20 amp plug on the pedestal just for this AC .

The rest of the trailer is run on the 30 amp on the pedestal.

The ac pulls 11.5 amps Maximum. ( according to coleman)

Coleman recommends 12 gauge for up to a 50 foot run, anything over 50' they recommend 10 guage , for this coleman polar cub.

Paul
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Old 08-21-2013, 02:18 PM   #19
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#10 THHN is rated for 30 amps that's why I said 30. THHN wire is sunlight resistant but not truly rated for direct sunlight. Heat effects a wires ability to conduct current as it generates its own heat due to the load you have on it. What you chose to use is realy unsafe. That thin plastic will not protect it from damage like a tree branch etc. nor will it protect it from the elements. You could have uses Liquid tight, it's a grey flexible conduit. My first choice would have been to fish romex through the ceiling. I would seriously consider changing what you have done. I'm an electrical contractor and have been in the trade for 20 years. I'm not pulling stuff out of a hat. I'm sorry I did not see this post sooner.
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Old 08-21-2013, 03:04 PM   #20
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Quote:
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#10 THHN is rated for 30 amps that's why I said 30. THHN wire is sunlight resistant but not truly rated for direct sunlight. Heat effects a wires ability to conduct current as it generates its own heat due to the load you have on it. What you chose to use is realy unsafe. That thin plastic will not protect it from damage like a tree branch etc. nor will it protect it from the elements. You could have uses Liquid tight, it's a grey flexible conduit. My first choice would have been to fish romex through the ceiling. I would seriously consider changing what you have done. I'm an electrical contractor and have been in the trade for 20 years. I'm not pulling stuff out of a hat. I'm sorry I did not see this post sooner.
The wire capacity is 30 amps, I am running 11.5 max.

And you call that unsafe.

The wire is sun resistant, the loom I used is uv resistant.

I don't drag around under trees, not much into boon docking.

As far as Romex thru the ceiling , good luck with that, try it in yours see how far You get.

Yeah I coulda, woulda, shoulda, but I did it this way , and Bert Im happy with it ,it is neat, it's not unsafe.

You may have been in the trade 20 yrs, I don't know. But I do know bull**** and condescension when I hear it.

Edited by: Pnr
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