Fantastic Fan Install - switch to change air flow? - Page 2 - Fiberglass RV


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Old 07-30-2007, 04:06 PM   #15
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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
phew - i was afraid that is what I was getting. I just ordered mine which looks to be the 4000r fan.

yours has no reverse on the fan at all as far as I can tell. hope the wiring will reverse it for you.

http://www.fantasticvent.com/products/mode...model_8000.html
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Old 07-30-2007, 06:20 PM   #16
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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.
The answer is back in Morgan's post #6, but it may not be clear to someone who doesn't read wiring schematics like a second language...

In this drawing, the big grey box is the switch, which has six connectors - if you only have four, you might have a double-pole single-throw (DPST) switch, or you might have the cross-over connections (see below) already done for you inside the switch. The terminals shown in the middle are the "common" or output connections; moving the switch to one direction or the other connects these terminals to the right-side input terminals, or the left-side. Hopefully there is centre position in which nothing is connected - that's the centre-off or three-position switch you want. The vertical bar connecting the two little switchblades means that the switch has two "poles" (the "double pole" aspect), which move together; the fact that it can be "thrown" to two different connections makes it a "double throw" switch... thus it's a DPDT.

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The incoming power wires (shown black and grey, because white doesn't work on a white background!) go to one pair of inputs, and cross over each other to connect to the other pair. The fan wires (shown in dashed lines) connect to the common terminals.
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Old 07-30-2007, 09:29 PM   #17
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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.
Tracy, the open/close knob is in the lower right corner. The switch in the upper left is for changing the fan speed.
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Old 07-31-2007, 11:16 AM   #18
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Tracy, the open/close knob is in the lower right corner. The switch in the upper left is for changing the fan speed.

thx mary! i haven't gotten mine yet. should get it in 3 days. I'm just glad it has switches
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Old 08-01-2007, 07:53 PM   #19
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BTW, here's a simple mod that I did on the open/close knob, because I sometimes leave the vent open enough that rain would get in and since the knob has the hollow side up, it would fill with water which would drip down my arm when I tried to turn it. Simply drill a small drain hole out near the end of each of the four arms of the knob.

Brian, knowing the customer service reputation of fantastical fan, I wouldn't be at all surprised to find them sending a $5 switch for free; they were very quick to send me a free grommet for the thru-roof installation, plus an extra gasket.
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Old 08-02-2007, 02:48 AM   #20
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I am going to try calling there. I am in a small town and no one can seem to get one of these switches
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Old 08-02-2007, 02:02 PM   #21
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While you're at it, ask them what the best way to cut the switch hole is.

Also ask them about the wiring and where you can get a diagram.
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Old 08-02-2007, 02:34 PM   #22
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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
I just bought a used Scamp 16' last Friday and that first night in the trailer was HOT. A fan to move the air out would have been great. This sounds like a great idea. My inital question is how do you get wiring up to the vent in the first place?

Thanks

Rye
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Old 08-02-2007, 04:14 PM   #23
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well thanks for the heads up everyone. Got it installed last night.

Called Fantastic Vent and they are sending me the switch for free. I did not get a wiring diagram but did confirm all the vent fans are the same minus the add on options. The air flow, etc and current draw remains the same accross the board.

For Wiring it I removed the tape on the center seam and the 2 wires tucked nicely into the seam. Some 2 sided 3m tape and you cannot tell they are there.

I did have to cut the opening bigger (8" to 14") and modified the trim ring instead of adding a spacer. I am running a 25 amp fuse in the line to compliment the built in one.
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Old 08-02-2007, 06:30 PM   #24
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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
This may be a dumb question, but how did you get the wires up to the vent to install the fan?

Rye
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Old 08-03-2007, 12:56 AM   #25
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You can't see the wires but if you look closely at the pic of my fan you can see a small seam (covered by seam tape) running to the upper cabinet. That seam is just wide enough to neatly tuck in the 2 wires. To help hold them in place I used a hot glue gun and then put the seam tape over the wires to hide them. I had some paint left over from when I painted the ensolite so it worked well.

For the running of the wires....

I ran the two wires from under the cabinet/sink up through the chrome pipe that also carries the wires for the 2 puck lights and 120 volt flourescent light. Then along the back side of the flourescent light and into the cabinet where they run along where the cabinet meets the roof, then they go into that seam until they run under the plastic trim ring and into the vent.
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Old 08-03-2007, 02:10 AM   #26
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This may be a dumb question, but how did you get the wires up to the vent to install the fan?

Rye
Not a dumb question at all. And the answer is different depending on what kind of trailer and insulation you have. For recent-model Scamps and Casitas that have "rat-fur" over Reflectix (silver-bubble-wrap-like) insulation you can do it this way.

--Peter
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Old 08-03-2007, 08:11 AM   #27
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great install on the fan Kurt, and kudos to FF for their helpful customer service. I got my fan yesterday and am waiting to get my trailer back from an RV repair PDI on all the systems to install it.

We should be able to do it ourselves and save some money and get to know our fixer better
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Old 08-03-2007, 05:32 PM   #28
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BTW, I recall one Casita owner reporting that his egg was pre-wired for a power vent. He 'candled' his egg by putting a strong light outside overhead and looked for the shadow from inside.

That method likely wouldn't work on a Scamp because of the insulation (Scamp doesn't pre-wire).
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