To Replace The Uc Open's Battery - Carrier UC Open Installation And Startup Manual

To replace the UC Open's battery

To determine when to replace the battery, remove power and measure the voltage. If the voltage is below 2.9
volts, you need to replace the battery.
CAUTION Power must be ON to the UC Open when replacing the battery, or your date, time, and trend data
will be lost.
1
Remove the battery from the controller, making note of the battery's polarity.
2
Insert the new battery, matching the battery's polarity with the polarity indicated on the UC Open.
UC Open
Installation and Start-up Guide
21
Troubleshooting
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