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Old 03-08-2012, 04:21 PM   #11
OatStraw
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Aug 2011
Bartlesville, OK
Posts: 334
Liked 20 Times on 5 Posts


I have plenty of extra cell phone chargers, good idea. Is rack/fan on the bottom of the keezer pushing air up, or is the rack/fan on the top pulling air up or down?
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Old 03-08-2012, 04:31 PM   #12
DSmith
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Sep 2011
Robbinsdale, MN
Posts: 796
Liked 76 Times on 63 Posts


Mine is a chest freezer with the fan blowing air sideways mounted to a vertical grate/partition. I don't think it matters where it's mounted as long as the inlet & outlet of the fan isn't blocked. You could put multiple fans inside and wire them all in parallel if you want.

 
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Old 03-08-2012, 04:34 PM   #13
OatStraw
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Aug 2011
Bartlesville, OK
Posts: 334
Liked 20 Times on 5 Posts


Looks like I will be murdering an old PC tonight. Need the fans and a jumper now
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Old 03-08-2012, 09:52 PM   #14
DSmith
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Sep 2011
Robbinsdale, MN
Posts: 796
Liked 76 Times on 63 Posts


Quote:
Originally Posted by OatStraw View Post
Looks like I will be murdering an old PC tonight. Need the fans and a jumper now
You don't NEED the jumper as long as you factor the differential into your setpoint. I'd call or email Johnson Controls (with your address) saying it wasn't in the unit when purchased.

http://www.johnsoncontrols.com/conte...ts_center.html

The fan isn't a NEED either but a nice reassurance that the air temperature is pretty well mixed. This is a fun project with parts that many people can get for free.

I've cut my knuckles more than once by not unplugging the fan before digging around in the chest freezer. The blades spin really fast and are pretty sharp and/or have plastic burs that slice.

 
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