Fantastic Fan Install - switch to change air flow? - Fiberglass RV


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Old 07-25-2007, 12:53 AM   #1
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Got a Fantastic Fan used and it appears to be the basic model with no instructions

I am going to install it and observed there are 2 wires. I tried it on the battery today and observed that by switching the wires from + to - I can reverse the direction of the fan (pulling air in vs pulling air out). I want to keep this feature and seeing I am not too knowledgeable on electricity I assume I can by some sort of switch at the hardware store to reverse the polarity/wires?

Does anyone know? thanks!!

- Kurt
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Old 07-25-2007, 09:53 AM   #2
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Is there no reverse switch on fan.Mine has a switch.
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Old 07-25-2007, 10:31 AM   #3
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not on this one. I can upgrade the unit's panel off the FantasticFan website to add the remote, reverse switch and thermostat even but figured I could add the remote switch myself. Just not sure what one looks like.
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Old 07-25-2007, 10:56 AM   #4
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I have never seen one wih out the built in switch.Good luck.
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Old 07-25-2007, 11:31 AM   #5
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Quote:
not on this one. I can upgrade the unit's panel off the FantasticFan website to add the remote, reverse switch and thermostat even but figured I could add the remote switch myself. Just not sure what one looks like.
Go to your local auto parts store (not a chain store, but the one that supplies your local jobbers) and find the knowledgeable dude there. Explain to him what you want to do. This is the same theory that your auto power windows use. (Reversing polarity with a switch) There should be a toggle switch in their stock that will do the trick. If you run into a blank wall, I'll draw up a schematic and send to ya.. Larry
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Old 07-25-2007, 07:30 PM   #6
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Kurt,

You need a double pole, double throw (DPDT) switch rated for 5 amps DC.

That's a switch with two sections that operate together. Each section has a common connection and two ON connections; one on each side.

Wire as shown here:
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Old 07-25-2007, 07:59 PM   #7
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[quote]Kurt,

You need a double pole, double throw switch rated for 5 amps DC.

That's a switch with two sections that operate together. Each section has a common connection and two ON connections; one on each side.

Wire as shown here:
Attachment 9120


I knew someone else would draw it out for ya and I would get out of doing it... THANX Morgan.... Larry
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Old 07-26-2007, 02:42 AM   #8
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I knew someone else would draw it out for ya and I would get out of doing it... THANX Morgan.... Larry
de nada, Larry.

Kurt, you may be able to find a DPDT switch that snaps in to replace the ON-OFF switch on the fan. In that case you would need a three position DPDT switch; ON-OFF-ON. Still use the same wiring diagram.

If the price of the replacement panel from Fantastic Fan is not too far out, you might want to consider it along with the thermostat. I find the thermostat control useful.
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Old 07-26-2007, 03:45 PM   #9
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Umm, quit screwing around and call fantastical fan tech support -- They will tell you what you have and might even send you the upgrade switch for nothing -- They have just about the best customer service policy in existence, which is one of the reasons why the fans are popular. I have never heard of an ff without the reversing switch....
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Old 07-26-2007, 07:12 PM   #10
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I put my own in with a switch from princess auto. I was too cheap to pay the extra 50 bucks.
The switch cost me 5.00 and the time was about 10 minutes
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Old 07-30-2007, 03:01 PM   #11
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I have had them order one up but how do I wire the switch? The fan has 2 wires off it but the switch has 4 connectors. I understand the concept but a little confused how I get the 2 wires into 4.

thanks.
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Old 07-30-2007, 03:15 PM   #12
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i'm glad to see your post, as I am about to order the basic FF model.

is this the one you got?

FANTASTIC POWER VENT - 3 SPEED WITH REVERSIBLE FAN

http://www.pplmotorhomes.com/parts/rv-vents/62466.htm

seems nutz to not have a switch with it!
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Old 07-30-2007, 03:19 PM   #13
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looks like the switch is in the lower left corner and the turn knob to manually open/close the lid is in the upper left



at least on the one I plan to order. sale ends tommorow 7/31, so I have to decide. $139. is a good price for what i need to get the hot air out.
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Old 07-30-2007, 03:38 PM   #14
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Mine is the model 8000 so no reverse switch included (got mine used on EBay). I can add the $5 switch just need to know how to wire it up
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