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Old 09-15-2011, 10:39 PM   #11
nootay
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Mar 2010
Dayton Virginia
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do you have details on how to hook up the fans? i think i need to do the same in mine



 
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Old 09-16-2011, 01:35 AM   #12
dprbrts42
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Aug 2011
Atlanta, GA
Posts: 34

Sure,

These are two CPU fans that I had laying around. They both operate at 12V so I soldered both of their power wires together and soldered that to a pair of wires that led to my enclosure. Currently they operate off of the 12V supply provided by the enclosure. They operate independent of the LOVE controller.

For wiring purposes I ran two CAT5 cables into the chamber before installing the insulation. I ran one on each side so that I could tap into either one when needed. One of the pairs in the CAT5 cable was what I used to connect the fans to the PSU.



 
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Old 09-16-2011, 01:41 AM   #13
nootay
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Mar 2010
Dayton Virginia
Posts: 592
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so do you just have these connected to a standard computer power supply or something else? i dont know much about the wiring side of things, but it sounds like i can handle this one.

My fermentation chamber is having a hard time getting below 40 degrees. i feel like having some circulation inside may help this.

 
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Old 09-16-2011, 01:49 AM   #14
dprbrts42
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Aug 2011
Atlanta, GA
Posts: 34

You are correct, the enclosure that I used was an old external CD-ROM housing. Computer components are designed to run off of 12V DC and 5V DC so the enclosure had the appropriate power built in. If you dont have one handy you can purchase a variable "Wall-wart" from your local big box store. While it is unplugged, set it to 12V DC, cut the end of the cable and wire the power lead from the fans directly to that. Please be careful with modifying the power supply as you can be electrocuted.

 
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Old 09-16-2011, 01:51 AM   #15
splobucket
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Oct 2009
Orlando
Posts: 95
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I love the construction. But I gotta wonder, is that refrigerator running continuously since it's cooling a space 3 times the size it was designed for? Unless you super insulate that I'm thinking that you're sucking a lot of juice.
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Old 09-16-2011, 01:55 AM   #16
dprbrts42
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Aug 2011
Atlanta, GA
Posts: 34

I'm sitting beside it as we type, and it is off and remains off for quite a while. I have my temp difference set to 4 degrees so it will fluctuate 4 degrees to the hot side before kicking on. I insulated it with double layers and left an air-gap between layers and it seems to maintain great cooling with out running all the time. The fridge isn't hot to the touch which is also a good sign.

I've seen some other builds where they use a Kill-a-Watt to measure actual power consumption but I haven't measured mine yet.

 
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Old 09-16-2011, 02:05 AM   #17
nootay
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Mar 2010
Dayton Virginia
Posts: 592
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What temperature do you have yours set to? I'm having trouble getting mine below 40. It will hold 50 and up temps and not cut on that much. When I try to run temps 45 or below it's on quite a bit and the sides of the fridge get pretty warm

 
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Old 09-16-2011, 02:19 AM   #18
dprbrts42
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Aug 2011
Atlanta, GA
Posts: 34

I'm not running it below 64 at the moment, as I have an ale in there percolating away.

When I first built the chamber I had it at 45, but didn't get it any lower and I hadn't considered testing for cold crash capabilities.



 
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