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APPENDIX B
—
09FC FREE COOLING MODULE CONTROLLER (CONT)
09FC Free Cooling Module Controller Start-Up
Wizard
Navigation: Equipment Touch Startup Wizard
Point Name – Description
Default/Range
Cool Enable
– Enables or disables cooling operation.
D: Enable
R: Disable/Enable
Leaving Water Temp Setpoint
– The leaving water temperature setpoint maintained by the
module.
D: 44°F
R: 15 to 75°F
Outdoor Air Temp Setpoint
– The outdoor air temperature below which the module is allowed to
operate.
D: 50°F
R: -20 to 80°F
OAT Offset Setpoint
– The number of degrees that the outdoor air temperature must rise above
setpoint to disable the module’s operation.
D: 3°F
R: 1 to 10°F
Remote Contact Normal Logic State
– Specifies the remote contact's normal logic state.
D: Open
R: Open/Closed
Fan VFD Run Status Normal Logic State
– Specifies the fan's variable frequency drive run status
normal logic state.
D: Open
R: Open/Closed
Fan VFD Output Type
– Defines the type of fan variable frequency drive output control.
D: 0-10V
R: 0-10V/2-10V
Fan Initial Start Speed
– The speed that the module’s fans are briefly run on initial startup.
D: 100%
R: 0 to 100%
Fan Minimum Speed
– The lowest speed that the module’s fan is commanded when the fans’
variable frequency drive is enabled.
D: 20%
R: 0 to 100%
Fan Speed PID
– This BACnet Object calculates the amount of fan speed required to satisfy the
Leaving Water Temp Setpoint
and allows access to the control loop's tuning parameters.
NOTE
: The following default values should be changed only by a technician trained in tuning PID
Loop algorithms.
R: 0 to 100%
Action
Update Interval
Proportional
Integral
Derivative
Deadband
Bias
direct
1:00 mm:ss
10
5
0
0
0
Bypass Valve Type
– Defines the type of bypass valve analog output control.
D: 0-10V
R: 0-10V/2-10V
Bypass Valve PID
– This BACnet Object calculates the amount of bypass required to satisfy the
Leaving Water Temp Setpoint when bypass valve modulation is enabled and allows access to the
control loop's tuning parameters.
NOTE
: The following default values should be changed only by a technician trained in tuning PID
Loop algorithms.
R: 0 to 100%
Action
Update Interval
Proportional
Integral
Derivative
Deadband
Bias
reverse
1:00 mm:ss
10
2
0
0
0
Lvg Wtr Temp Setpoint OA Reset
– Enables OA reset of the leaving water temperature's
setpoint.
D: Disable
R: Disable/Enable
Maximum LWT Setpoint OA Reset
– The highest leaving water temperature setpoint
reset allowed by the outdoor air temperature.
D: 10°F
R: 0 to 25°F
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