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Johnson Controls Digital Thermostat Control Unit - A419ABG-3C
|Price:||$68.00 + $5.99 shipping|
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- Johnson Product A419ABG-3C
- Use to control heating or cooling
- Ready to use
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Package Quantity: 1 | Style Name: Blue
Top Customer Reviews
This particular controller will allow you to set the target temperature (as either a closing or openning point), the number of degrees of variance from target before the unit turns on/off, a time delay before the unit is allowed to reactivate the device(great for extending the life of a freezer or fridge), power supply on/off option in the case of unit failure and options for using remote monitoring/controlling if you choose to upgrade.
For the money, it is the best value on the market. No wiring required, simply plug in the device to the controller and the controller into the wall. The Ranco offers more options if you prefer to wire your own device or you can go all out and use a Love or other commercial controller that is fully customizable but is best mounted into a control device panel. Check out [...] for examples of what can be done with more sophisticated controller units.
In order to do so the unit must be set in Heat Mode (it is set to Cooling Mode by default, indicated by a small snowflake icon on the display when the unit is on), to set the thermostat into Heat Mode you are required to open the unit up with a screwdriver and rearrange 2 small pins from partially connected to fully connected. The instruction manual will show you which pins to adjust. Once the pins have been adjusted just close the unit up and plug it into whatever device you will be using as your water bath (in my case a cleaned out deep fryer), and set your desired Set Point (SP). You will notice that there is a little flame icon on the display where there was once a snowflake, this indicates that the unit is now in Heat Mode. From this point, you can start cooking.
Now for my plus minus:
+ The unit is capable of regulating higher temps for sous vide cooking.
+ The Johnson Controls Digital Thermostat is cheaper than other control units you may find here on Amazon that are sold as "for sous vide" (like the Dorkfoods DSV unit in particular).
+ Long cords (this can be hit or miss for some but the long cords help in my kitchen).
- Not very user friendly, make sure you have the manual handy. While I found the process easy enough, setting the unit to Heat Mode by opening it up and adjusting small delicate pins can be intimidating and confusing for some (I wish this could have been addressed with a simple switch).Read more ›
SP: setpoint (for my purpose 67) the temperature you want the thing to try and maintain.
dIF: differential (1 to 30F, default = 5) I leave at default, this is the point + or - from the setpoint temp (so 62 to 73 in my case.
ASd: anti-short cycle delay (0 to 12 minutes, default = 1)I set to 12 minutes, just to put the least amount of stress on the compressor.
I recommend it!
Bought this unit for use with a keezer I'm building.
First thing I noticed on powering it up was a blinking error code. Manual said error code was related to the sensor not working. Oh joy. So, I pop the unit open and find the temperature sensor is only connected with one wire. The other wire? It was disconnected and brushing up against the surface mount devices on the little main board. Scary fire hazard, especially when dealing with AC power. Luckily the manual/directions had the wiring diagram. Problem solved.
The take away on this? Before using the unit make sure all the wiring is done properly.
This unit has allowed me to experience Sous Vide cooking at a low cost because I use it in conjunction with an ordinary 7 quart crock pot. I gave it four stars only because the instructions are not user friendly. To help others I have posted photos of the interior mechanism on whysousvide.com. The photos clearly show where the jumpers are and how to move one of them to use it to control a heating unit rather than a refrigerator. It's quite simple once you know how. I also like the long wires as they allow plenty of room to move things around on the counter top.
I highly recommend it.
Most Recent Customer Reviews
Bought this controller to regulate the temperature in my Keezer. Took some getting used to in programming the controller. Read morePublished 5 days ago by Daniel Harrold
I use this on a 20 cubic foot stand-alone freezer to age beer. It's simple to use and keeps the interior of the fridge no colder than 52 degrees. Read morePublished 7 days ago by ArgyJr
Bought this item to use with a freezer that I am turning into a Keezer. Works great, but the temperature varies slightly compared to the other thermometer I have in the cooler.Published 11 days ago by S. Floody
So far it's working great. I'm using as a controller for a propane gas valve for a smokehouse I just built.Published 12 days ago by don
This temperature controller is great, I've had the analog version in the past but I prefer this digital version because I don't have to guess what temperature I've set it too. Read morePublished 16 days ago by Brushydog
I use this to convert an upright freezer to a refrigerator. The freezer came with the house we bought, and we didn't have a need for a 6' freezer, but did have a use for a second... Read morePublished 17 days ago by Jim O'Neill
Made a Kimchi Refrigerator out of a freezer with this, it is doing the job.Published 19 days ago by Dogdazeky