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10-20-2012, 09:06 PM
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#1
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Feedback Score: 0 reviews
Join Date: Oct 2010
Location: Avon Lake, OH
Posts: 48
Liked 1 Times on 1 Posts
Likes Given: 1
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"reverse" my johnson control
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I have a A19AAT johnson control for my fermentation fridge. It's out in my patio and it's going to get really cold out there, I want to do the thing where I put a light bulb in the fridge to warm it up to ferm temps in the winter. For that I want to "reverse" my control to turn on the lamp when the temp dips below 65. Anyone know how to do that? I don't have the original manual.
Thanks in advance!
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10-21-2012, 01:59 AM
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#2
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Feedback Score: 0 reviews
Join Date: May 2011
Location: Stow, MA
Posts: 5,492
Liked 317 Times on 279 Posts
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Here is your user manual. That particular controller does not appear to provide the ability to control a heating unit...
Cheers!
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10-21-2012, 02:04 AM
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#3
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Feedback Score: 0 reviews
Join Date: Aug 2012
Location: Buffalo, NY, New York
Posts: 812
Liked 43 Times on 40 Posts
Likes Given: 512
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Oh please don't double post it just makes it more confusing for everyone, the duplicate post is: http://www.homebrewtalk.com/f11/johnson-controls-362441/
Basically, two choices, either switch to the NO contact, or change one of the jumpers.
__________________
Drinking: Ginger wine, white sake, and brown rice sake
In Primary: Cocao mead, JOAM, mead, various cysers and methligens, Noni wine, gruit wine, pumpkin wine, juniper ale, grape leaf wine, sassafras/sarsaparilla wine
In Secondary: Coffee wine, fruit wine, lemon wine, others
Principles of Healthy Diets
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10-21-2012, 02:26 AM
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#4
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Feedback Score: 0 reviews
Join Date: May 2011
Location: Stow, MA
Posts: 5,492
Liked 317 Times on 279 Posts
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So far it's at least a triplicate post. Shabby.
And that controller is incapable of controlling a heating unit. Read the manual and you'll see this key description:
"The A19AAT type thermostats are single-stage cooling controls with Single-Pole, Single-Throw (SPST) switches that open on temperature drop."
That's it. No jumpers, no NC vs NO output. That's why it's called "A19AAT Type Cooling Thermostat"
Cheers!
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10-21-2012, 03:15 AM
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#5
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Feedback Score: 0 reviews
Join Date: Aug 2012
Location: Buffalo, NY, New York
Posts: 812
Liked 43 Times on 40 Posts
Likes Given: 512
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Ohhhh ok I was confusing it with my Johnson Controls unit which is a different model #, I just assumed, well you know how that goes, it made an ass, well out of me anyway.
__________________
Drinking: Ginger wine, white sake, and brown rice sake
In Primary: Cocao mead, JOAM, mead, various cysers and methligens, Noni wine, gruit wine, pumpkin wine, juniper ale, grape leaf wine, sassafras/sarsaparilla wine
In Secondary: Coffee wine, fruit wine, lemon wine, others
Principles of Healthy Diets
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10-21-2012, 01:11 PM
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#6
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Feedback Score: 0 reviews
Join Date: Oct 2010
Location: Avon Lake, OH
Posts: 48
Liked 1 Times on 1 Posts
Likes Given: 1
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It was a double post, I'll admit, but I'll defend myself that it wasn't a triple post at least!
Sorry, wasn't certain which forum it belonged.
I did get the answer from Catt22 on a private message last night. When I opened the case there is another terminal that is plugged. Remove the plug and move the black wire to that terminal and that "reverses" the device. Sorry for all the technical terms 
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