40 VAV-SVX07B-EN
Tracer™ UC400 Controller Operations
Equipment Settings Button
Use the Equipment Settings button to set setpoints and other settings in the Tracer UC400
controller, as well as configure the controller parameters. In addition, the user can change a
number of equipment setpoints and setup parameters from the Equipment Utility screens. Scroll
down through the expanding boxes to locate the desired setpoints to change.
Setpoints Tab (Values)
1. Select a value from a drop-down list.
2. Enter a new value directly in the entry field. (The value entered must be within the minimum
and maximum limits.)
3. Click and move the slider. (The value changes to match the slider position.)
4. Click the Revert button to restore the setting to a previous value.
5. Click Save when changes are complete.
Note: If leaving a screen without clicking Save, a dialog box displays asking if the user wants to
save the new values.
Default Setpoints
• Unoccupied Cooling Setpoint: Setpoints have a range from 40.0°F to 115.0°F (4.44°C to
46.11°C). This cooling setpoint is used when the UCM is unoccupied. The unoccupied cooling
setpoint must be greater than or equal to the unoccupied heating setpoint plus 2.0°F (1.1°C).
• Unoccupied Heating Setpoint: Setpoints have a range from 40.0°F to 115.0°F (4.44°C to
46.11°C). This heating setpoint is used when the UCM is unoccupied. The unoccupied cooling
setpoint must be greater than or equal to the unoccupied heating setpoint plus 2.0°F 1.1°C).
• Occupied Offset: Setpoints have a range from 0.9°F to 45°F (-17.27°C to 7.22°C). If a zone
sensor thumbwheel setpoint is not being used, this setpoint are added and subtracted from the
Space Temperature Setpoint Default to determine the occupied heating and cooling setpoints.
• Standby Offset: Setpoints have a range from 0.9°F to 45°F (-17.27°C to 7.22°C). If a zone sensor
thumbwheel setpoint is not being used, this setpoint are added and subtracted from the Space
Temperature Setpoint Default to determine the standby heating and cooling setpoints.
• Space Temperature Setpoint Default: Setpoints have a range from 40.0°F to 115.0°F (4.44°C
to 46.11°C). If a zone sensor thumbwheel setpoint is not being used, this setpoint is used as the
UCM's active cooling setpoint during occupied times. The cooling setpoint must be greater
than or equal to the heating setpoint plus 2.0°F (1.1°C).
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