To Get The Serial Number; To Restore Factory Defaults - Carrier VVT Bypass II Installation And Startup Manual

Troubleshooting
If Run LED shows...
On

To get the serial number

If you need the VVT Bypass II's serial number when troubleshooting, the number is on a Module Status report
(Modstat) under Core (or Main) board hardware
To obtain a modstat in the i-Vu® interface:
1
Select the VVT Bypass II in the navigation tree.
2
Right-click and select Module Status.

To restore factory defaults

CAUTION This erases all archived information and user-configuration settings. You will have to
reconfigure all custom settings. It is recommended to restore the factory defaults only under the guidance of
Carrier Control Systems Support.
To erase volatile memory data and restore factory default configuration settings:
1
Pull the screw terminal connector from the controller's power terminals labeled Gnd and 24 Vac. Make
sure the address switches are not set to 0, 0.
2
Short the Format Short pins jumper's pins and maintain the short for steps 3 and 4.
3
Insert the power screw terminal connector into the VVT Bypass II's power terminals.
4
Continue to short the jumper until the Error LED flashes three times in sync with the Run LED.
5
Remove the short.
VVT Bypass II Controller
Installation and Start-up Guide
And Error LED shows...
On
36
Status is...
Failure. Try the following solutions:
•
Turn the VVT Bypass II off, then on.
•
Format the VVT Bypass II.
•
Download memory to the VVT Bypass II.
• Replace the VVT Bypass II.
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