Appendix B - 09Fc Free Cooling Module Controller - Carrier 09FC020 Installation, Start-Up And Maintenance Instructions

APPENDIX B — 09FC FREE COOLING MODULE CONTROLLER
The following tables describe all of the possible settings for your
controller on the i-Vu or Field Assistant Properties tab.
®
NOTE: Some of the properties are available only when other set-
tings have been enabled. See Table 8 for the points and properties
available on the touchscreen interface.
NOTE: Engineering units shown in this document in the defaults
and ranges are strictly for reference. You must enter an integer
only.
Status
Navigation: i-Vu / Field Assistant: Properties  Control
®
Program  Status
Run Command – The module's current run command.
Operating Mode – The module's current operating mode.
Equipment Alarm – Indicates the controller has an active alarm. See Service Configuration for causes. R: Normal/Alarm
Leaving Water Temp Setpoint – Displays the leaving water temperature's effective setpoint used to
control the module fans.
Outdoor Air Temperature – Displays the outdoor air temperature used for control.
Valve Position – Displays the current position of the module's bypass valve. This value is associated with
the floating motor output.
Bypass Valve Position – Displays the current position of the module's bypass valve. This value is
associated with the analog output.
Fan VFD Enable – Displays the current command of the module fans' variable frequency drive.
Fan VFD Speed – Displays the current speed of the module's fans.
Shutdown – When Active, provides a means to stop the module in an orderly manner. All alarms are
reset and current active alarms are displayed.
Unit Configuration
Navigation: i-Vu / Field Assistant: Properties > Control Program
®
> Configuration > Unit Configuration
Cool Enable – Enables or disables cooling operation.
Lvg Wtr Temp Setpoint OA Reset – Enables OA reset of the leaving water temperature's setpoint.
OAT LWT Setpoint Reset Low Limit – The lowest outdoor air temperature which resets the leaving
water temperature.
OAT LWT Setpoint Reset High Limit – The highest outdoor air temperature which resets the leaving
water temperature.
Maximum LWT Setpoint OA Reset – The highest leaving water temperature setpoint reset allowed by
the outdoor air temperature.
Power Fail Restart Delay – The amount of time the controller delays normal operation after the power is
restored.
Occupancy Schedules – Enables or disables the occupancy schedule function.
Sensor Calibration
Leaving Water Temperature – The current leaving water temperature.
Leaving Water Temp Sensor Calibration – A calibration offset value that allows for adjusting the local
leaving water temperature sensor to match a calibrated standard that is measuring the temperature in the
same location.
Entering Water Temperature – The current leaving water temperature.
Entering Water Temp Sensor Calibration – A calibration offset value that allows for adjusting the local
entering water temperature sensor to match a calibrated standard that is measuring the temperature in the
same location.
Outdoor Air Temperature – The current outdoor air temperature.
Outdoor Air Temp Sensor Calibration – A calibration offset value that allows for adjusting the local
outdoor air temperature sensor to match a calibrated standard that is measuring the temperature in the
same location.
Point Name – Description
Point Name – Description
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Default/Range
R: Stop/Run
R: Bypass/Free Cool
R: 15 to 75°F
R: -56 to 245°F
R: Close/Open
R: 0 to 100%
R: Stop/Start
R: 0 to 100%
D: Inactive
R: Inactive/Active
Default/Range
D: Enable
R: Disable/Enable
D: Disable
R: Disable/Enable
D: 70°F
R: __°F
D: 90°F
R: __°F
D: 10°F
R: 0 to 25°F
D: 20 seconds
R: 0 to 600 seconds
D: Disable
R: Disable/Enable
R: -56 to 245°F
D: 0°F
R: -10 to 10°F
R: -56 to 245°F
D: 0°F
R: -10 to 10°F
R: -56 to 245°F
D: 0°F
R: -10 to 10°F