Recently purchased the a419abg-3c electronic temp control and having issues operating. Must admit the brochure is in a different language (not really but to me). Anyone ever use and have advise on setting up and operating?
Johnson temp controls
- Thread starter hbr2547
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SP is the temp you want the fridge at. Dif is how much lower than sp you want the compressor to kick on. So if you want 35 degrees and the compressor to turn on at 32 then sp= 35 and dif = 3. I find that dif at 5 is good for a keezer with kegs and 2 is good for fermentation chamber.
I left that switch setup at default.
Empty fridge will have extreme differences so put a bucket of water in there or some beers.
edit: I meant dif value tells when to turn off compressor.
I left that switch setup at default.
Empty fridge will have extreme differences so put a bucket of water in there or some beers.
edit: I meant dif value tells when to turn off compressor.
I was a little confusing in my last post. Ignore what I said. Unplug your fridge. Let the temp rise to above 70. plug it in and set the controller. The compressor will turn on at SP and off at the dif value. So on at 70 and off at 69 if sp=70 and dif=1. If it doesn't work change the switch setting.
Set the fridge to the coldest value that it has so that it will never interfere with the controller. Also make sure that the temp probe is not touching anything. drape it over a rale or something.
You don't want to set it to heating mode, you want it in cooling mode. i.e. cut out when the set point is reached.
I set the SP to the temperature that I want, diff to 1, and ASd to the maximum. I also place the probe in a thermowell, so it monitors the temperature of the beer, rather than the ambient temperature. If you don't have or cannot use a thermowell, you should tape the probe to the side of the fermenter, and wrap some insulation around it so it measures the temperature of the beer rather than the temperature outside the fermenter.
-a.
I set the SP to the temperature that I want, diff to 1, and ASd to the maximum. I also place the probe in a thermowell, so it monitors the temperature of the beer, rather than the ambient temperature. If you don't have or cannot use a thermowell, you should tape the probe to the side of the fermenter, and wrap some insulation around it so it measures the temperature of the beer rather than the temperature outside the fermenter.
-a.
guitarist_713
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How do u set it to heating mode?
guitarist_713
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Got it done! Bavarian Pilsner is chugging away at 50 in the fridge out in my 25 degree garage. Thanks to a hair dryer that temperature controller and a little ingenuity from yo boy
Ondori
Well-Known Member
I just bought one of these, and it is doing an amazing job. Before I put my brew in my chamber, I tested it out for a week with a carboy filled with water. I taped the probe to the outside of my better bottle and put some bubble wrap over it. Temp readings were dead on. I got a robust porter bubbling away right now 
You can see the bubble wrap to the right insulating my probe from the ambient temps.
You can see the bubble wrap to the right insulating my probe from the ambient temps.
