2 User Operation
2.1 Viewing and Editing Setpoints for the Cooling Unit
NOTE: User level access allows viewing and editing only a limited number of setpoints. To view or adjust all setpoints,
you must have service level access. See Editing Setpoints for the Cooling Unit on page23 .
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.
2.1.1 Editing Humidity Setpoints
1. Touch , then >Setpoints. > Humidity Control. The HUMIDITY CONTROL secondary panel opens.
2. Refer to User Humidity Setpoint Options below and Humidity Control on page42 to adjust thesetpointoptions,
then touch Save. The setpoint is updated.
• Touch Cancel to discard the changes.
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.
User Humidity Setpoint Options
Dew Point Setpoint
Desired dew point (based on actual return air temperature and humidity) by adding moisture to or removing moisture
from the air.
Humidity Control Sensor
Selects sensor used when calculating relative humidity.
Humidity Control Type
Control when staging humidification operations. Valid values:
• Relative: Percent of humidification/dehumidification is determined by the difference between the humidity-
sensor reading and the humidity setpoint.
• Compensated: Percent of humidification/dehumidification is determined by considering the actual deviation
from the temperature setpoint and adjusts the humidity setpoint accordingly. The recalculated humidity setpoint
displays on the screen.
• Predictive:Percent of humidification/dehumidification is determined by considering the actual deviation from the
temperature setpoint and adjusts the humidity sensor reading accordingly. The adjusted humidity sensor
reading displays on the screen.
• Dew point: Percent of humidification/dehumidification is determined by the difference between the dew point
calculated from the humidity sensor reading and the dew point setpoint.
2 User Operation
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Vertiv™ Liebert® iCOM™Installer/User Guide