Troubleshooting
Chilled Water System Optimizer v2
CARRIER CORPORATION ©2019
Installation and Start-up Guide
30
All rights reserved
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:
1
Select the controller in the navigation tree.
2
Right-click and select
Module Status
.
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.
1
Verify that the controller's power is on.
2
Using a small flathead screwdriver, pry up each side of the black battery clip until it is free and you can
remove it.
3
Remove the battery from the controller, making note of the battery's polarity.
4
Insert the new battery into the controller, matching the polarity of the battery you removed.
5
Push the black clip back onto the battery until you hear both sides click in place.
6
Download the controller.
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..
1
On the i-Vu® navigation
tree, select the controller.
2
On the
Properties
page, check
Out of Service
.
3
Click
Accept
.
