Appendix B: Setpoints And Alarm Settings By Line Id - Vertiv Liebert iCOM Installer/User Manual

Appendix B: Setpoints and Alarm Settings by Line ID

These tables list the parameters by the line identification assignments employed before the iCOM
touchscreen. The tables include range/options of the parameter, the factory-default setting, and a
description of the parameter function.
The line IDs are not listed in the User or Settings menus, only in the parameter directory. You can search
the parameter list to find the line ID and it's associated label and value in the iCOM user interface.
To search the parameters list:
1. Log-in at the Service level, then touch
2. Enter a line ID or term in the Search field, and touch
B.1 Line IDs for Setpoint Parameters
Table B.1 User-menu Setpoints by Line ID
Line Parameter
Range
ID Name
Temperature 32 - 113 °F
Setpoint Act 0.0 - 45.0 °C
Temperature 41 - 104 °F
U102
Setpoint 5.0 - 40.0 °C
41 - 104 °F
TempSetUsr
5.0 - 40.0 °C
Supply Sensor
Temperature Remote
U103 Control Sensor
Sensor Return
Sensor
Humidity Dew 41 - 65 °F
Point Setpoint 5.0 - 18.3 °C
U104
Humidity
20 - 80 %RH
Setpoint
Remote
Humidity
Sensor
U105 Control
Return
Sensor
Sensor
Relative
Humidity
U106 Compensated
Control Type
Predictive
Dew Point
41 - 104 °F
U107 Fan Setpoint
5.0 - 40.0 °C
>
Default
Description
Setting
73 °F
Selects the temperature that the cooling unit will maintain by applying cooling
23.0 °C
and/or reheats. "Temp Set" value is the temperature that has been set by the
73 °F User to control the temperature. "Temp Act" value is a read-only value that
23.0 °C indicates if another routine, such as supply compensation, has internally
modified the temperature controlling value. If compensation has not be
73 °F
activated, the ACT and SET values will always match.
23.0 °C
Selects the sensor that will control the cooling capacity; either chilled water
Return valve, compressors, free cooling valve, or air economizer. Unloading-type
Sensor compressors can be set to any type of sensor, however, fixed-style
compressors can only be set to Return or Remote sensors.
48°F
Selects a humidity level that the cooling unit will maintain by removing or
8.9 °C
adding moisture to the air. The humidity setpoint will be represented in %RH
or Dew Point value depending on what the humidity control type is set for.
50 %RH
Defines which humidity value the setpoint will be compared with. The return
sensor is equipped with Temp/Humidity sensor and can calculate the dew
Return
point based on icom's internal lookup table. If a sensor other than the return
Sensor
sensor is selected, the iCOM will calculate the correct %RH based on the
sensor selected and its actual temperature reading.
Selects the humidity control calculation. If set to "Relative', the unit will control
the humidity without considering any temperature deviations. If set to
"Predictive" and "Absolute", the control will consider the temperature
deviation from temperature setpoint so that a constant level of moisture is
Predictive
kept in the area based on the humidity sensor reading and the temperature
deviation from setpoint. "Dew Point" allows the iCOM controller to calculate
the actual dew point of the space and to control the humidity based on a user-
entered dew point temperature.
Required anytime the fan operates from a different sensor than that used for
the temperature setpoint. EX: temperature setpoint is set to Supply Air and
73 °F the fan control is set to Remote Air.This is considered "Optimized Aisle"
22.8 °C control, which decouples the fan and cooling capacity modulation. The remote
sensor setpoint would modulate the fan speed and the supply sensor setpoint
would modulate the cooling.
> Parameter Directory.
.
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