Johnson Controls Electronic Temperature Control with Single Power Cord and Piggyback Plug

Model: A421ABJ-02C
2 Reviews
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$99.00

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  • Makes it easy to turn any freezer into your own kegerator or fermentation chamber
  • Gives you precise control over your appliance's temperature settings by overriding the unit's thermostat
  • Lets you control the unit's heating or cooling between -40 to 212 degrees Fahrenheit or -40 to 100 degrees Celsius
  • An intuitive three-button touchpad and an adjustable backlit LCD display allow for easy setup, adjustment, and monitoring
  • Single cord design features a 6 ft. power cord with a piggyback plug with both a male plug and a female outlet
DESCRIPTION
FEATURES
INFO & GUIDES
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Q&A

Johnson Controls' A421ABJ-02C Line-Voltage Type 1 Electronic Temperature Control with Single Power Cord and Piggyback Plug lets you convert any freezer into a kegerator or fermentation chamber by overriding the appliance's thermostat, giving you precise control over the temperature settings. The device comes factory wired with a 6 ft. (1.8 m) cord with 120 VAC grounded piggyback plug with both a male plug and a female outlet. To use, simply plug your appliance into the female outlet and plug the male plug into an electrical outlet. The intuitive three-button touchpad allows for easy setup and adjustment, while the adjustable backlit LCD display lets you view the temperature and the status of other functions. You can view the temperature in either Fahrenheit or Celsius, and adjust the temperature between -40 to 212 degrees Fahrenheit or -40 to 100 degrees Celsius. An LED light lets you quickly check the On/Off status.

To give you even more control over your appliance's cooling and heating, the A421ABJ-02C was designed with convenient features like sensor offset to let you adjust the displayed temperature to the actual sensed temperature, switch-activated temperature setback to allow you to shift the on/off temperature by an adjustable setback value, adjustable anti-short cycle delay to allow you to select the minimum time that the output relay remains on before the next on cycle, and an optional restricted user adjustment mode to let you restrict the on/off adjustment to your defined temperature range.

The A421ABJ-02C is suitable for many refrigeration and HVAC applications, including agricultural, beverage, food service, ice machine, process, refrigeration, space heating, and ventilation applications. It has a durable Type 1 (NEMA)/IP20 high-impact plastic enclosure for DIN rail and surface mounting, and features an A99BB-200C temperature sensor with a standard 2 in. (5.1 cm) probe and a 6.6 (2.0 m) PVC cable.

  • Control Front Panel LCD:
    Displays the temperature, parameters, and status and allows you to adjust the backlight intensity for ambient light conditions. Custom icons display the system and control status.
  • Basic and Advanced Programming Menu:
    Provides two levels of parameter adjustment and control setup, allowing you to set up advanced features in one menu and easily adjust basic parameters in the other menu.
  • On/Off Temperature Adjustment:
    Allows you to select the temperature values at which the relay turns On or Off, which automatically defines the Heating or Cooling mode of operation.
  • Switch-Activated Temperature Setback:
    Allows you to shift the On/Off temperature by an adjustable setback value. When a user-supplied switch closes the binary input control circuit, the control operates at a defined setback temperatures.
  • Adjustable Anti-Short Cycle Delay:
    Allows you to select the minimum time the output relay remains off before the next on cycle; avoiding short cycling, hard starts, and nuisance overload outages on compressors and other inductive applications.
  • Adjustable Sensor Offset:
    Allows you to adjust the displayed temperature to the actual sensed temperature.
  • Optional Restricted Adjustment Mode:
    Allows you to restrict the On/Off adjustment to your defined temperature range.
  • Sensor Failure Mode:
    Allows you to select the relay On/Off state in the event of a sensor or sensor wire failure.
  • Backlight Brightness Level:
    Allows you to adjust the LCD backlight intensity.
UPC: 700697200621

08/01/2017

works good so far
Ron

I bought this temperature control for a chest freezer to replace the original temperature control that had quit working and was no longer available. It is very easy to hook up and set. I do not use any of the advanced controls so they may be a little more difficult to set.

05/23/2017

Designed by engineers for engineers
Phil the pilot

Using to keep wine at cellar temp in dedicated fridge.
Works perfectly....once you figure out how to get it set up, and you'd think that with only three buttons it couldn't possibly be that hard. Ever wonder what happened to the guys who designed the impossible-to-program clocks on VCR's? They now make these. Had to watch youtube videos to set up, but I'm just a liberal arts major who is at least handy enough to fly a Boeing for a living.

Question:
What gauge power cords are you using on the dual cord?
by Ross on January 05, 2024
Answer:
They use 14 Gauge for this controller.
by Modesto on January 08, 2024
Staff Answer

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