How to wire Silenx Fan?

[ericwarren]

Hello all!
i just received a Silenx 120mm 11db fan to replace the loud stock fan for our fridge.
Quick wiring question...
the old fan has two wires going to the fan. this new fan has 3 wires.
any tips on how to determine which two to use?
And, does polarity matter?
I tried to hook it up today but may have used the wrong two wires as the fan didnt seem to come on.
Thanks for your help
Eric

[CanoeStream]

Please describe better what color wires the original fan and the new fan might have.

Does the original fan have black (hot) and white (return) wiring? The new fan would probably follow the same convention. Is there a green wire from the Silenx fan? Or are you seeing something like this? > > SilenX IXP-54-09 Ixtrema Pro 80mm 9dBA 20CFM Fan*at SVC.com

And ... friends with a new '08 23' International would really appreciate it if you'd relay back if this really is a significant improvement on noise.

[ericwarren]

Hi Bob,
Original dometic fan had red and blue wires i believe....
This has three wires, all of them in a clear casing.
The fan is similar to what you post but is 120mmx120mmx25mm.
It fir perfectly in the original holes.
I also had that 3 pin to 4 pin converting clip. I cut the 3 pin connector off and used the 2 wires that looked like they would have been used in the 4 pin configuration.
Didnt work.
Then i thought maybe it was just b/c the thermosensor didnt reach to right temp so i unplugged the 2 wires from that and bridged them. still nothing.
So im thinking maybe i picked the wrong 2 wires but perhaps my "bridging" technique was not right?

[CanoeStream]

Here are a couple threads that discuss wiring - http://www.airforums.com/forums/f425...lly-11811.html and http://www.airforums.com/forums/f283...fan-10960.html

I guess SilenX didn't plan for DIY-ers when they made the clip. I'm sure there has to be a schematic somewhere...

[bonginator]

I was trying to figure out the same thing since my SilenX came with 3 clear wires leading to a two wire/4 pin connector.

This post on the net has a picture of how the clear wires are lined up and may be useful.... I have not tried to wire yet to confirm but thought I'd pass on this information.

See the post from Origam2547 with photo

biocube fans - Reef Sanctuary



The link below has another reference on how to determine which wire is which requires connecting the SilenX to a 9V battery. I have not tried this approach either but just wanted to pass on what I've found when researching this on the web...

29-Gallon Biocube Journal (new photos coming soon) - Page 9

Sandy

[bonginator]

I finished wiring the silenx fan using the first image in my post above to figure out which was hot and which was ground. The hot wire was in the middle. Worked beautifully - great cheap replacement for that noisy refrigerator fan. I am ordering another silenx and running them in parallel given how quiet this thing is.

[Mattdjmorris]

I just bought the same fan and could not figure out which of the 3 clear wires performed which function. So I called the manufacturer. A human answered! I asked for tech support and she said she could help. I told her I was an airstream owner etc etc. She said she had heard of this upgrade on Airstreams. She then said she would send me a pdf to explain the situation. She’s immediately did and it was exactly what I (we) needed. Picture attached.
So with the wires identified I just had to wire up the new fan. I chose to attach red to red and blue to black. Hoping this was correct. Notice the second picture shows the final attachment. In this picture note that the middle of the 3 wires is the red wire.