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Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Johnson Controls A419 Settings
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Old 06-22-2012, 07:03 PM   #41
SixFoFalcon
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You have two options:
Set the set point to 40 with the jumper in the "cut out" position. No matter what differential you use, the compressor will stop running once it cools down to 40. Then the temp will rise and the compressor will kick in once it warms up to 40+(differential) to start cooling again and bring it back down to 40.

The other option would be to set the setpoint at 40+(differential) and have the jumper set to cut in. In this case, for example lets say your differential is 5, the set point would be 45, so the compressor would start running when the temp rises to 45, and it would stop running when it cools by 5 degrees to 40.

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Old 06-23-2012, 11:41 AM   #42
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I've installed several of these controls in commercial refrigerators & make tables and always use the "cut out @ set point" option.

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Old 09-09-2012, 01:44 AM   #43
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Sittofalcon and Junkster... After reading about 20 different threads to figure out whether to cut in or cut out, the two of you gave me my answer in a minute. Thank you both.

I'm set to cut-out @ set point.

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