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Old 02-23-2013, 09:11 PM   #1
Dec 2011
huntington beach, ca.
Posts: 67
Liked 1 Times on 1 Posts

I am getting ready to brew next weekend and I have a chest freezer that I want to use for fermentation for the first time. I just bought a new Johnson A419 and it's all wired up and ready to go. But I have a question on it before plugging it in and trying it out before I brew. It comes with factory settings for cooling (jumpers). I want to set it at 68F. Do I change the jumpers in it for heating mode cut-in at setpoint, heating mode at cut-out or leave it at cooling cut-in?
Also, do I need to do anything else to the freezer when I plug in the A419?
Thank you.

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Old 02-23-2013, 09:16 PM   #2
krduckman's Avatar
Aug 2011
Fayetteville, GA
Posts: 202
Liked 16 Times on 13 Posts

Mine came defaulted for cooling. You shouldn't have to change any jumpers unless you want to heat. I have one for the freezer and one for the heat. I only had to move the jumper to heater. Didn't mess with the cut in and cut out. Used the default. I think it was cut in.

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Old 02-26-2013, 08:11 PM   #3
Jul 2012
Posts: 60
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