Home Brew Forums > Home Brewing Beer > Bottling/Kegging > Keezer - johnson control Digital question
Reply
 
Thread Tools
Old 01-28-2012, 01:56 AM   #1
rperkins
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Spring Valley, IL
Posts: 30
Default Keezer - johnson control Digital question

I am setting up my new keezer and purchased a Johnson Digital Controller.


I set the desired temperature to 38 degrees. This morning is was perfect.

Tonight I went to the freezer and looked at the controller and it was 30 but it was still set for 38. The temp in the freezer on a separate thermometer is 34

I dont have anything in the freezer at this time

I placed the freezer in the coldest setting.

Any ideas ??


rperkins is offline
 
Reply With Quote
Old 01-28-2012, 02:09 AM   #2
day_trippr
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Stow, MA
Posts: 13,793
Liked 1908 Times on 1488 Posts

Default

A couple of things may be going on. First, if you have the probe for the Johnson at a different height from the thermometer, they'll read differently due to stratification. Second, chest freezers are notorious for continuing to drop the temperature a bit after the compressor stops running. This is particularly acute in a totally empty freezer...

Cheers!


day_trippr is offline
 
Reply With Quote
Old 01-28-2012, 02:29 AM   #3
badbrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: l.a., ca
Posts: 1,372
Liked 12 Times on 12 Posts
Likes Given: 1

Default

What was the cut in value and the value to add to it for the power to cut out? (I forgot the letters)

Also since it is empty, the temp will rise and fall very hard. Put cornys with water in there to gauge.
badbrew is offline
 
Reply With Quote
Old 01-28-2012, 03:03 AM   #4
rperkins
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Spring Valley, IL
Posts: 30
Default

Offset 0
Differential 2
rperkins is offline
 
Reply With Quote
Old 01-28-2012, 03:42 AM   #5
badbrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: l.a., ca
Posts: 1,372
Liked 12 Times on 12 Posts
Likes Given: 1

Default

Quote:
Originally Posted by rperkins View Post
Offset 0
Differential 2
Alright, I'm not so dumb anymore with my instructions in front of me.

SP- 38
dif- 2
asd- (default 1)

So that means 36 to 38 degrees with the compressor coming on whenever it wants to. Set the asd to 10 to prevent the compressor from coming on for 10 minutes and report back. ...but add some volume like I mentioned earlier.


badbrew is offline
neomantra Likes This 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Temp question - johnson digital david0161 Bottling/Kegging 6 05-26-2011 02:34 AM
Keg Digital Temperature Control TopherM Bottling/Kegging 6 04-21-2011 01:47 PM
Another Analog Johnson Control question CaptKiRkLeS Bottling/Kegging 6 01-28-2011 07:07 PM
Installing Johnson Contols Digital Thermostat (HELP!!!) nate0075 Bottling/Kegging 3 06-06-2010 07:15 PM
Johnson A419 Digital Thermostat Settings JakeTheHopDog Bottling/Kegging 4 05-11-2010 10:21 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS