Replace an Existing CCU

4 Minute Read

| Overview

In the 75F® system, a CCU can be replaced with another CCU, where all the configurations in the older CCU, are restored in the CCU that was used for the replacement. The restoration includes all the terminal profiles paired to the CCU and all the schedules applied at the zone and building levels in the new CCU. With this feature, the user will save time and effort to reconfigure the details in a new CCU.

This activity extracts all the information from the CCU and imports it into the new CCU used as a replacement.

The activity is carried out using a building passcode that is generated from another CCU in the building or from the Internal portal.

You can use this feature to replace any faulty or broken CCU in a building.

| Requirements

The original CCU must be offline for at least 15 minutes to allow the replacement process. This can be done by shutting it down using the power button or disconnecting it from the local network.

| Procedure

From the New CCU home screen.

Click CCU

The select install type screen is displayed.

Click the Replace Existing CCU option.

The Connect to Wi-Fi screen is displayed.

Click Next.

Enter the generated building passcode into the Replace Existing CCU screen.

For generating the passcode refer to the following sections:

| Generating Building Passcode from an Existing CCU in the Building

| Generating Passcode from Internal Portal for the Site

Click Next to validate the passcode.

The building passcode is verified, and the list of CCUs registered under the site is displayed.

Select the CCU you wish to replace.

If the version of the CCU being replaced is the same as the new CCU version used.	Go to \| Replacing CCU
If the version of the CCU being replaced is lower than the new CCU version used	Go to \| Updating the CCU to Lower Compatible Version

| Updating the CCU to Lower Compatible Version

When the version of the CCU being replaced is lower than the new CCU version used, the system downloads and instals the lower version of the CCU.

Click the Update & COntinue prompt to update the version to the latest golden version of the CCU.

The progress bar along with the download size for the version to be updated is displayed.

Once the installation is successful the CCU restarts and the CCU replacement process should be started from the beginning.

| Generating Building Passcode from an Existing CCU in the Building

From the CCU Zones page.

Click the settings icon.

The Floor layout screen is displayed.

Click Settings option.

The CCU details screen is displayed, with the site and other details.

Click the question mark icon.

The screen for generating the building pass code in displayed

Click the arrow icon next to Generate Passcode.

The Building Passcode generation window is displayed.

The table below explains the fields in the screen.

Field	Description
Passcode	You can see the generated passcode.
Refresh	You can use this option to get a fresh passcode.
Email ID	You can enter an email ID where you can email the Passcode to
Validity	You can see the validity detail of the Passcode generated.

You can enter the passcode into the Add CCU to Existing Site screen as below or get the passcode to the email.

Enter the email ID to get the passcode over email, and click OK

Email sent message is displayed.

You receive the passcode email as below.

| Visualizing the Generated Passcode from Internal Portal for the Site

From the Internal portal home page.

Click the Menu icon.
Select Buildings.

The buildings screen is displayed with the list of building available.

Locate the building or the site for which CCU needs to be replaced.
Click the building to view the building level details.

The Passcode generated via the CCU is displayed for reference under the building.

As done in CCU.

You can copy or note the passcode to enter into the Replace Existing CCU screen as below. You also have a refresh icon, an option to refresh the generated passcode to a new one.

| Generating Passcode from Internal Portal for the Site

If the building passcode is not generated from the CCU, the same can be generated from the Internal portal.

From the buildings screen in the internal portal.

Locate the building or the site for which CCU needs to be replaced.
Click the building to view the building level details.
Click the Generate Passcode option under the building details.

Building passcode generation window pops up.

As done in CCU.

You can copy or note the passcode to enter into the Add CCU to Existing Site screen as below. You also have a refresh icon which is an option to refresh the generated pass code to new one.

Or you can get the passcode to the email as below.

Enter the email ID
Click Send.

The building passcode shared successfully message in displayed.

You receive the passcode email as below.

| Replacing CCU

The confirmation pop-up is displayed.

Click Yes to confirm the replacement.

The replacement process starts, with the site details syncing, and syncing the CCU details.

The progress window displays the sync updates.

You can pause or cancel using the options provided and go back to the main screen.

The CCU sync completes with a success message

and the zones for the replaced CCU are restored as below.

| Replacement Failure/ Interruption Handling

The CCU replacement process can be interrupted at times. This can be due to loss of internet connectivity, loss of power, and various other reasons, in the field.

For such kinds of interruptions, the CCU is provisioned with a reattempt strategy to reattempt the replacement process.

The user can resume, pause, or cancel the process.

Replacement Process Resume

The replacement process resumes from where it was when the user moves away or closes and reopens the CCU application, as below.

Once the CCU application is reopened the following screen displays.