Serial Number; Replacing The Vvt Zone Controller's Battery - Carrier VVT Zone Installation And Startup Manual

If Run LED shows...
2 flashes per second
5 flashes per second
5 flashes per second
7 flashes per second
14 flashes per second
On

Serial number

If you need the VVT Zone 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) from your user interface

Replacing the VVT Zone Controller's battery

The VVT Zone Controller's 10-year Lithium CR2032 battery provides a minimum of 10,000 hours of data
retention during power outages.
If the VVT Zone Controller experiences a power outage and the control program stops functioning, replace the
battery.
Remove the VVT Zone Controller's cover.
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 controller's cover.
3
Replace the VVT Zone Controller's cover.
4
Download the VVT Zone Controller.
5
VVT Zone Controller
And Error LED shows...
On
On
Off
7 flashes per second,
alternating with Run LED
14 flashes per second,
alternating with Run LED
On
Status is...
Exec halted after frequent system
errors, due to:
•
Controller halted
•
Program memory corrupted
•
Address conflicts - duplicate
MS/TP MAC addresses
•
One or more programs
stopped
Exec start-up aborted, Boot is
running
Firmware transfer in progress,
Boot is running
Ten second recovery period after
brownout
Brownout
Failure. Try the following solutions:
• Turn the VVT Zone Controller
off, then on.
•
Download memory to the VVT
Zone Controller.
•
Replace the VVT Zone
Controller.
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