11.2.1 Disabling Diagnostics Manual Mode
1. Touch , then > Diagnostic/Service > Diagnostics > Manual Mode in the Category list. The MANUAL
MODE panel displays.
2. Remove the check mark from the Enable box by touching it. Manual mode is disabled.
11.3 Diagnosing Evaporator Fan Issues
1. Touch , then > Diagnostic/Service > Diagnostics >Evaporator Fan in the Category list. The
EVAPORATOR FAN panel displays.
2. Refer to Diagnostics—Evaporator Fan Options below , for descriptions of diagnostic options.
NOTE: Depending on the type of thermal management unit, included components, and control settings of your system,
all of the options listed may not be available on your Vertiv™ Liebert® iCOM™ display.
11.3.1 Diagnostics—Evaporator Fan Options
Analog Output 1 – 4
0V to 10V analog output that drives the speed of the evaporator fan. Typically, the evaporator fan is AnalogOutput1 by
default.
Analog Output 1 Selection
Var SpeedDrive.
Fan Speed
Current speed of fan.
Motor Overload/EC Fan Fault
Indicates status of input feedback. If cooling unit has EC fans, it is the EC-fan fault input. If cooling unit has standard
fans (no variable speed drive), it is the motor overload input.
Motors
Enables/disables fan motor during manual/diagnostic mode.
Status Airflow Loss
Indicates if the status of the Air Safety switch is open or closed.
Status Filter
Status of the air filter.
Status Remote Shutdown
Indicates whether remote shutdown is on or off.
11 Performing Diagnostics
166
Vertiv™ Liebert® iCOM™Installer/User Guide