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BAS-SVN208G-EN
Troubleshooting and Common Questions
Troubleshooting and Common Questions
Problem
Explanation/Resolution
Widgets on custom
graphics do not follow the
setpoint limit range set on
the Options tab within
Settings
Even though they look similar to the main screen, these widgets do not
follow the Setpoint limit range set on the Options tab. The limits for the
widgets are set within Tracer Graphics Editor widget property dialog.
Communication loss
If communication loss occurs between the System Controller and the
display, or between System Controller and the unit controllers, some
elements of the screen may disappear temporarily and/or the display
may restart. When this occurs, in addition to troubleshooting the
communication loss, press the power button to restart the display.
Changes to site via the
System Controller web
interface
If the System Controller programming changes (such as schedules
added, zones renamed, or graphics loaded), after the display has been
started, the display should reflect the changes after a few minutes and
may restart. If the display does not update in a timely manner, restart the
display by pressing the power button on the back of the display.
Up or down arrow are
disabled
Potential causes:
• Setpoint is controlled locally at the zone sensor (such as
thumbwheel).
• The user does not have access to the setpoint.
• The setpoint is controlled at a higher priority.
• The setpoint is out of the range of the limits. The range is applied to
the relinquish default value of the setpoint.
Setpoint doesn’t seem to
be controlling the HVAC
Check in the System Controller web user interface that the unit controller
is receiving the setpoint. Notes regarding priority level:
• The main screen controls the setpoint of zone (area or space) at
control priority level 13 as default or at the user's simplified override
level.
• Custom graphics with a setpoint widget, similar to the main screen,
can have the override priority set in TGE as a property of the widget.
If you want the custom graphic to write at the same level as the display
main screen, keep the default override priority (level 13).
No timer appears for a
space that is controlled by
an area before unoccupied
transition
When approaching an unoccupied time (within two hours), the display
will show a countdown timer to unoccupied mode on the main screen.
This works well for spaces and areas that are members of a schedule. No
timer will appear for a space that is controlled by an area, if the area is
the member of the schedule.
For example, changeover systems require the VAV boxes (spaces) to be
members of an area as well as the VAS. Also, the area should be setup
as a member of a schedule to control occupancy. Therefore, as the
schedule approaches an unoccupied period, the display main screen will
not show a countdown timer for any of the VAV boxes, since the VAV
boxes are controlled by the Area rather than directly as Schedule
members. The VAV box on the main screen will go from occupied mode
to unoccupied mode without any countdown timer. No functionality is
affected. The system will control as programmed.
