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Troubleshooting
To get the serial number
If you need the controller's serial number when troubleshooting, the number is on:
a sticker on the back of the main controller board
a Module Status report (Modstat) under Core (or Main) board hardware
To obtain a modstat in the i-Vu® interface:
Select the controller in the navigation tree.
1
Right-click and select Module Status.
2
To replace the controller's battery
The controller's 10-year Lithium CR123A battery retains the following data for a maximum of 720 hours during
power outages: time, control programs, editable properties, schedules, and trends.
To conserve battery life, you can set the driver to turn off battery backup after a specified number of days and
depend on the archive function to restore data when the power returns.
A low battery is indicated by the Battery low LED or a low battery alarm in the i-Vu® application. You can purchase
replacement batteries from any retailer that sells a CR-123A battery.
Verify that the controller's power is on.
1
Using a small flathead screwdriver, pry up each side of the black battery clip until it is free and you can
2
remove it.
Remove the battery from the controller, making note of the battery's polarity.
3
Insert the new battery into the controller, matching the polarity of the battery you removed.
4
Push the black clip back onto the battery until you hear both sides click in place.
5
Download the controller.
6
To take the controller out of service
If needed for troubleshooting or start-up, you can prevent the i-Vu® application from communicating with the
controller. When Out of Service, i-Vu® no longer communicates properties, colors, trends, etc..
On the i-Vu® navigation tree, select the controller.
1
On the Properties page, check Out of Service.
2
Click Accept.
3
Chilled Water System Optimizer v2
Installation and Start-up Guide
30
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