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Operating Status
This box includes view only settings related to air flow. Two fan output settings can be overridden.
ECM Fan Setup
(Visible if an ECM fan is configured.) This box includes flow setpoint, maximum and minimum flow
settings, and a correction factor setting.
Current Calibration Summary
Presents the results of the two point air valve calibration along with the Minimum and Maximum Air Flow
Setpoints.
Discharge Air Reset Limits
This box contains settings that are used for Dual max VAV boxes. When the VAV's heating valve is
open, the box flow will modulate between the flow settings to control to the Discharge Air Temp Design
Setpoint.
Configuration Screen
Application Selection
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Equipment Options
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BAS-SVX091A-EN
the time/date stamp in the report. The structure is loaded with the default values for all of the
fields when the auto commissioning test sequence starts. The fields are updated with the results
as the sequence progresses. The data is held until the next auto-commissioning test.
If an auto-commission command is received in the middle of an auto-commissioning cycle, the
auto-commissioning sequence restarts. If an auto-commission command is received during
calibration, calibration aborts and restarts after auto-commissioning finishes. If an abort auto-
commission command is received during the calibration portion of the primary air valve test, it is
honored after the air valve calibration finishes.
Calibrate Air Valve (Start Button): Displays the Calibrate Air Valve dialog box. Use this air
balancing tool to perform a basic two-point air balance for the Symbio 500 controller. See the Tracer
TU Help for Programmable Controllers ("Configuring and Commissioning Equipment" > "VAV Boxes"
> "Using the Air Balancing Tool") for the correct procedure.
Note: A full discussion of air balancing is beyond the scope of this document. Refer to the Air
Systems for Tracer SC+ Applications Guide (BAS-APG007).
Airflow Override: Displays the Airflow Override dialog box. The user can override the air damper to
open for a limited duration as part of a system water balancing operation. When the timed duration
expires, the water valve is released back to its normal setting.
Water Valve Override: Displays the Water Valve Override dialog box. The user can override the
water valve to open for a limited duration as part of a system water balancing operation. When the
timed duration expires, the water valve is released back to its normal setting.
Fan Override: Displays the Fan Override dialog box, which can be used to override the fan setting
to On.
Note: For ECM fans, the user can also select the speed of when the fan turns on.
Profile: This allows for selection between three operational programs. The three programs are
Space Temperature, Ventilation Flow, and Flow Tracking.
Box Size: Used to select a Trane F-style box size or Generic Box.
Air Damper Opens: Chose between Clockwise and Counter-Clockwise damper rotation to open the
damper.
Fan Control: Choices are None, Parallel, and Series. If Parallel or Series is selected the Fan
Setting group box will appear.
Reheat Type: Choose between reheat options of None, Hot Water, or Electric heat. If Hot Water or
Electric heat are selected the Reheat Settings group box will appear.
Controller Points and Parameters
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Troubleshooting
