Vertiv Liebert iCOM User Manual

3.1.2 Configuring Temperature Setpoints
1. Touch , then > Setpoints > Temperature Control. The TEMPERATURE CONTROL secondary panel
opens.
2. Refer to Temperature Control Options below , Temperature Control—TemperatureSetpointsandCooling
Operation on page27 , and Compressor Control by Cooling Requirement on page29 to adjust the setpoint
options, then touch Save.
The setpoint is updated.
NOTE: Proportional band setting is dependent on the heat load and the components specific to your cooling unit.
Additional tuning may be required after start up when using PI temperature control. See Considerations when Using PI
Temperature Control on page28 .
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.
Temperature Control Options
AutoSet Enabled
When enabled, the proportional band for temperature and humidity and both integration time factors are set
automatically based on the type of cooling unit (single compressor, dual compressor or chilled water).
NOTE: General settings cannot be adjusted or changed when AutoSet is enabled. If you make a change when AutoSet
is enabled, the parameter defaults back to its original setting.
BMS Backup Temp Setpoint
Temperature that the cooling unit maintains during BMS backup operation.
Dehumidification Reheat Proportional Band
Sets reheat operation independently from the temperature proportional band. Adjusts the activation point of
dehumidification components based on deviation of the selected dehumidification reheat temp control sensor and the
dehumidification reheat setpoint by placing half of the selected value on each side of the setpoint. A smaller number
causes faster reaction to temperature changes.
Dehumidification Reheat Setpoint
Temperature that the unit maintains via dehumidification reheat.
Dehumidification Reheat Temp Control Sensor
Selects the sensor that controls dehumidification reheat. Values are:
• SUP: Temperature control is based on maintaining the temperature of the discharge air from the cooling unit.
See Supply Sensors on page160 .
• REM: Temperature control is based on the temperature reading(s) from wired remote/rack sensor(s). See Wired
Remote Sensors on page157 .
• RET: Temperature control is based on maintaining the temperature of the room air.
3 Service Operation
24
Vertiv™ Liebert® iCOM™Installer/User Guide

Vertiv Liebert iCOM Specifications

General

Brand	Vertiv
Model	Liebert iCOM
Category	Control Unit
Language	English