AC wiring for Fantastic Fan?

[hdxbonez]

Planning to install a powered fan in the bedroom vent of my Cougar. The unit is already prewired for a second AC, with the electric outlet adjacent to the roof vent. I intend to pull the feed out of the 110v circuit breaker and supply with 12v instead. Anyone aware of any issues with this plan?

[chuckteri]

Is there a light on the ceiling right close by where you could just pull the 12 volt power from it?? Would be way easier than changing the wiring around. Chuck

[chuckster57]

Where are you getting the 12VDC from? The 110VAC is most likely terminated in a dummy plug, no outlet, and you don't need to do anything but shove it out of the way.

[hdxbonez]

The closest light fixture is another foot beyond the outlet, and it is on a switch. i dont want the fan switched with the bedroom lights. The outlet next to the vent only has a blank plate, I'm assuming the wires are capped inside. I'll get 12v power to it by pulling the feed end out of the breaker in the converter, and T-tapping into another fused 12v source behind the converter.

[BirchyBoy]

One thing to consider is wiring in a Fantastic Fan switch. Our new camper came with one and it raises/lowers the exterior cover and can turn the fan on or off. If you or your travel partners are too short to reach the fan, the switch is a huge help.

[hdxbonez]

Originally Posted by BirchyBoy

One thing to consider is wiring in a Fantastic Fan switch. Our new camper came with one and it raises/lowers the exterior cover and can turn the fan on or off. If you or your travel partners are too short to reach the fan, the switch is a huge help.

I ordered the fan that has the remote control to avoid those issues

[larry337]

Originally Posted by hdxbonez

The closest light fixture is another foot beyond the outlet, and it is on a switch. i dont want the fan switched with the bedroom lights. The outlet next to the vent only has a blank plate, I'm assuming the wires are capped inside. I'll get 12v power to it by pulling the feed end out of the breaker in the converter, and T-tapping into another fused 12v source behind the converter.

I installed a second AC. Under that plate is actually a junction box with 3 wire 110v. But I don't see why it wouldn't work for DC if you rewire it at the other end. As long nothing else is tapped into that line, which I doubt.

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[chuckster57]

If the second A/C is operated by a separate thermostat there will be 12VDC at the vent to operate the thermostat/control box. I just put a second A/C in a bedroom this morning that had its own wall thermostat.

[hdxbonez]

Originally Posted by chuckster57

If the second A/C is operated by a separate thermostat there will be 12VDC at the vent to operate the thermostat/control box. I just put a second A/C in a bedroom this morning that had its own wall thermostat.

Only a single t-stat in my unit, but I'll pull the cover and have a look when I go back up next weekend. I probably wont have time to perform the install until Memorial Day weekend, and I'd like to be completely prepared to finish once I start.

[hdxbonez]

Originally Posted by larry337

I installed a second AC. Under that plate is actually a junction box with 3 wire 110v. But I don't see why it wouldn't work for DC if you rewire it at the other end. As long nothing else is tapped into that line, which I doubt.

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Thanks, that's what I'm hoping

[larry337]

Originally Posted by hdxbonez

Only a single t-stat in my unit, but I'll pull the cover and have a look when I go back up next weekend. I probably wont have time to perform the install until Memorial Day weekend, and I'd like to be completely prepared to finish once I start.

No t stat line in my Cougar. Just 3 wire 110. The junction box is sort of odd looking. You just press the wire in to the metal guides and they cut the insulation and form the electrical connection while also holding the wire in place. You have to improvise if the fan wires are smaller gauge, which I suspect they are.

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[hdxbonez]

Originally Posted by larry337

No t stat line in my Cougar. Just 3 wire 110. The junction box is sort of odd looking. You just press the wire in to the metal guides and they cut the insulation and form the electrical connection while also holding the wire in place. You have to improvise if the fan wires are smaller gauge, which I suspect they are.

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That's good info. I was thinking that I would use wire nuts, but I suppose I could splice a larger gauge wire to the fan and feed that over to the junction box as well.

[larry337]

You could eliminate the box and just use wire nuts for DC I guess, not sure if that's code or not but they do it fir lights. I wouldn't do it for 110 of course.

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[PerryB]

I consider your plan of using the idle wires a good example of using your brain, and just may borrow it myself. Good thinking.

[hdxbonez]

Update-
I finally got some time to install the Fantastic Fan today. I ended up being able to send a snake over to the bathroom powered exhaust fan, and pull my power source from there, so no need to utilize the second air conditioner wire. The rest of the install was uneventful, and the fan made a substantial difference in keepng the bedroom cool today, I'm a believer.