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Old 02-25-2013, 04:27 AM   #1
DReimerMT
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Oct 2011
Bozeman, MT
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I am going to be building a keezer and I was wondering which temp controller I should use. I am looking at the Johnson Controls digital A419 or the Johnson Controls analog temp controller. Is there any reason to spend the extra money on the digital controller?

 
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Old 02-25-2013, 04:33 AM   #2
Cbaddad
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May 2011
Carlsbad, CA
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Easier.

 
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Old 02-25-2013, 03:24 PM   #3
DougK
 
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Jan 2013
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You could also just recalibrate the freezer thermostat so it will run above freezing, no controller needed.

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If you look closely, inside that little hole is a calibration screw. For my freezer, I had to turn that little guy clockwise probably 4 turns. It takes several days to dial it in with this method, but the end result is no controller needed.

Adjust it in the morning, leave a container of water in there and let it sit for several hours. Check it in the evening, and adjust as needed. Repeat until you get the temperature you want.
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