The Johnson Controller... Which one is best? - Home Brew Forums
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Old 05-01-2013, 04:53 PM   #1
DrinkingLounge
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I have my old GE Fridge now and want to add the Johnson A419 Controller to it. But they sell a blue one and gray one.

What is the difference between the two? Which one is best? Or is there another make out there that's better?

I plan on using my fridge as a fermentor and a storage for beer when I'm not brewing.



 
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Old 05-01-2013, 05:39 PM   #2
Premnasbiaculeatus
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The grey ones are older we have them on the furnace controls for my air handler units at work. I think they started coming out in blue sometime after 2005.

If you buy this one;
http://www.amazon.com/Johnson-Contro...=johnsons+a419

It's already completely setup for the application you ant to use it for complete with cord and nem 5 plugs so you can plug it direclty into your wall and freezer without having to do any of your own wiring.



 
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Old 05-03-2013, 01:52 AM   #3
chezzesteak
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I like the analog ones. No programming just turn the dial, and cheaper. Easy to raise temp for lagers over a couple of days. I have three different ones and I prefer the analog over all of them

 
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Old 05-03-2013, 02:17 AM   #4
day_trippr
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fwiw, only the digital Johnson models provide an anti-short-cycle function to protect a compressor...

Cheers!

 
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Old 05-03-2013, 02:45 AM   #5
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I like the probe on my digital, easier to get it through a hole in a freezer than the analog probe.
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Old 05-03-2013, 03:45 PM   #6
signmastr
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All the blue Johnsons are prewired, gray you do the wiring...

 
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Old 05-03-2013, 05:08 PM   #7
amandabab
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Quote:
Originally Posted by signmastr View Post
All the blue Johnsons are prewired, gray you do the wiring...
I've had 3 gray/analog johnson controllers, all of them were pre-wired.

Quote:
Originally Posted by day_trippr View Post
fwiw, only the digital Johnson models provide an anti-short-cycle function to protect a compressor...

Cheers!
the grey/analog have a 4 degree cutout to prevent short cycling.

 
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Old 05-04-2013, 03:27 AM   #8
day_trippr
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Quote:
Originally Posted by amandabab View Post
[...]the grey/analog have a 4 degree cutout to prevent short cycling.
Analogous to setting a non-zero differential, and not the same thing as an ASC setting...

Cheers!



 
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