Johnson-to-Computrols

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Obsolete/Legacy JCI Controllers

If your facility still has Johnson Controls N2 devices such as VMAs, UNTs, AHUs, and DX9100s, we have a solution for you. Although Johnson Controls has obsoleted these controllers, you may not want to upgrade or rip out and replace your entire building automation system, and you shouldn’t have to.

Computrols integration solution to JCI’s legacy systems allows you to leverage the majority of your existing infrastructure by simply replacing the system’s headend computer and NAE/NCM controllers as seen below. As your VMAs, UNTs, AHUs, and DX9100s fail over time, we can replace them individually with Computrols’ lifetime warranty HVAC controllers on the same communication trunk. Existing programming can remain, or we can completely recommission the system and implement any new sequence of operation that you desire.

JCI to Computrols Interfacing

Why Computrols?

Besides this simple integration that allows you to utilize your controllers until the end of their useful lives, completing this integration with a Computrols building automation system comes with a number of other advantages as well.

At Computrols, we believe that facility managers should be able to control their own BAS, not the other way around. We give our customers simple, yet robust BAS software and the training they need to effectively operate their systems. If additional assistance is needed, Computrols provides 24/7 phone support free of charge.

A Gateway to the Future

To support our lifetime warranty, Computrols’ controllers feature a unique 2-piece board design, making all of the electronics on one, easily replaceable, brain board for quick repairs or replacement. The brain board sits in a chassis that provides technicians 4-in-1 points, meaning any point can be configured through Computrols Building Automation Software to be analog in, analog out, binary in, or binary out – no jumpers. Changing out the controller consists of 7 simple steps:

  1. Power off the controller
  2. Remove the ethernet cable
  3. Remove the existing controller
  4. Replace with new controller
  5. Set the IP address
  6. Input ethernet cable
  7. Power on the controller

At this point, your database will be downloaded to the controller and your system will be back up and running.

As technology evolves, Computrols will continue to make new products, but always in the same form-factor, with built in backward and forward compatibility.


Datasheet

Computrols JCI Interfacing.pdf (903 kb)
A comparison of legacy Johnson Controls systems with Comptrols controllers being run by CBAS.