Trane SYMBIO 700 Troubleshooting Manual page 117

Restore To Factory Defaults (Baseline Backup)
At time of manufacture, a "Baseline Backup" of the Symbio 700 is
created. This backup contains the same information as a normal
backup but it can't be removed from the controller and it can't be
overwritten. The baseline backs are included in a backup file but will
only be restored onto a controller that doesn't contain a baseline
backup.
The Baseline Backup is stored on the Symbio 700 and includes all
settings/configuration items at their values as manufactured.
The Baseline Backup can be restored through the Mobile Service Tool
and is intended to be used as a mechanism to restore the controller
to factory defaults.
Once initiated this process cannot be undone and should only be
used if a technician wants to completely "start-over" the setup of a
piece of equipment.
If a controller is replaced in the field, the replacement controller will
not have a baseline backup
Restore to factory defaults restores a baseline backup that is saved on the controller.
Baseline backups are created during the manufacturing process, replacement controllers will not have a
baseline backup.
When there isn't a baseline backup the button will be greyed out.
When the baseline backup restore is complete the user is disconnected from the controller and taken to
the unit list.
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