Johnson A19 - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > Johnson A19

Reply
 
Thread Tools
Old 11-29-2012, 08:15 PM   #1
contraguy
Recipes 
 
Oct 2012
Posts: 11


I think I screwed up...

I bought a Johnson A19ACA-14C on eBay without doing all of the research I should have. Apparently this particular model has to be manually reset each time it opens the circuit. Is there any way to override this feature, or should I just try to sell it and try again? I assume that this model was made as some sort of safety switch for HVAC application...

 
Reply With Quote
Old 11-29-2012, 09:15 PM   #2
501irishred
HBT_SUPPORTER.png
 
501irishred's Avatar
Recipes 
 
Oct 2012
Benton, Arkansas
Posts: 1,247
Liked 128 Times on 101 Posts


Looks that way. I'm in the HVACR business and have never seen one used, but per specs you are correct. Not sure what application this is typically used for (opens on drop w/ manual reset), but perhaps you can offload it somewhere......

 
Reply With Quote
Old 11-29-2012, 11:50 PM   #3
Junkster
Recipes 
 
Feb 2011
North Central, Ohio
Posts: 509
Liked 31 Times on 22 Posts


I agree with 501 - I also do HVACR and have never seen one in the field. It must be used as a last resort safety of some kind.....

 
Reply With Quote
Old 11-30-2012, 12:03 AM   #4
passedpawn
Waste Allocation Load Lifter - Earth Class
HBT_ADMIN.png
 
passedpawn's Avatar
Recipes 
 
Apr 2009
☼ Clearwater, FL ☼
Posts: 26,094
Liked 6816 Times on 4028 Posts


I did something similarly dumb when I bought my first controller. I got a A19-xxx that was meant for very hot applications. I took it apart and tried to adjust it down to my fridge temps, but it just wasn't going to please. Lesson learned. Ended up buying the right thing soon after that.
__________________
- Andrew

 
Reply With Quote
Old 11-30-2012, 11:55 AM   #5
porcupine73
Recipes 
 
Aug 2012
Fort Meade
Posts: 813
Liked 47 Times on 43 Posts


It's probably for some 'sanity check' like if the temp gets above this value or below this value there is something f'd up that requires manual intervention.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
What's up with my Johnson a419? Veritas Equipment/Sanitation 9 08-11-2012 01:17 AM
johnson controls etc please help!!!! brewskiman Kegerators & Keezers 1 07-08-2012 10:00 PM
Bad Johnson? arturo7 Bottling/Kegging 15 08-30-2010 06:59 PM
Johnson A419 blzr For Sale 0 06-27-2010 08:21 PM
Johnson used to be 2 deg high, now 7? Coastarine Equipment/Sanitation 4 02-05-2009 02:35 AM


Forum Jump