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Wiring Computer Fans together to help reduce heat

So, I have never considered this before BUT recently I have come across a large stash of pretty much brand new computer tower fans...15 of them to be exact....and I got them for free. I was wondering what all I would need to do to be able to wire these fans all together to place behind my Metal Halides to help in reducing heat transfer into my tank. I have been trying my best to not have to drop a Boat Load on a chiller large enough to chill my upcoming system so looking for some more financially feasible alternatives at the moment until I absolutely have too. Yes, I know I am going to end up just buying the chiller BUT at this moment in time looking to see how I can use these free fans. Attached is a picture of what they all look like. Any info can help

[attachment=5035]...172.JPG[/attachment]

Just need a transformer and cord with plug end. Wire to timer. Easy peazy.

Jason,
do you know where I would be able to get ahold of such a transformer that I could wire several together instead of just one for each transformer?

You should be able to run with with the new APEX system

Those are simple 12v fans. 200ma each. You can wire as many of those fans together as you want as long as you don't exceed the rating of the power supply. Any 12v power supply will work. If you want to run 1 fan you won't need a power supply rated any bigger than the 12v 200ma (milli-amp). Just add at least 200ma to the power supply requirement for each additional fan.

As a note, there are 3 wires on those fans. They only need 2 wires to run. The center wire is a common negative (-) and the 2 outer wires as interchangeable depending on whether you want to push air or suck air, so in other words you can run the fan in either direction based on which of the other 2 wires you choose to hook to the + side of the power supply.

I have tons of that stuff around if you need it.

[quote="avdzinr" post=35710]Those are simple 12v fans. 200ma each. You can wire as many of those fans together as you want as long as you don't exceed the rating of the power supply. Any 12v power supply will work. If you want to run 1 fan you won't need a power supply rated any bigger than the 12v 200ma (milli-amp). Just add at least 200ma to the power supply requirement for each additional fan.

As a note, there are 3 wires on those fans. They only need 2 wires to run. The center wire is a common negative (-) and the 2 outer wires as interchangeable depending on whether you want to push air or suck air, so in other words you can run the fan in either direction based on which of the other 2 wires you choose to hook to the + side of the power supply.

I have tons of that stuff around if you need it.[/quote]

Teaching us all a little something, thanks Dan :side:

You have any pics of the suggested power supply you feel would work best for me in this situation. The fans aren't as large of a priority anymore as I scored a 1.5 HP trade winds chiller the other day for 100 bucks. Only had 6 months of use on it before it went into storage. Didn't even have any dust build up on the blades it had been used so little.

That's a good deal if it's 1.5 HP. That's a 230v unit that is good up to 1800 gallons and retails for close to $3k.

Here's a link to an appropriate power supply for your fans. It is a 1 amp so it would power up 5 200ma fans.

http://www.walmart.com/ip/US-Plug-AC-100-240V-to-DC-12V-1A-5.5mmx2.5mm-Power-Adapter-Converter-Cable-Black/47618345?wmlspartner=wlpa&selectedSellerId=142&adid=22222222227034832448&wl0=&wl1=g&wl2=c&wl3=75435955714&wl4=&wl5=pla&wl6=175414728994&veh=sem

Tell me about it. I was going to have to buy one eventually and this popped up on Craigslist with the 500 gallon tank, a pretty much brand new blue line 100 HD return pump and a 55 gallon acrylic sump that's cracked. Scott at NAS couldn't believe that I got that chiller he was pretty shocked

 
 
 
 
 
 
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