Chapter 4: Icom Controller Operation - Vertiv Liebert PEX+ Series User Manual

iCOM Controller Operation

Chapter 4: iCOM Controller Operation

This chapter explains name, definitions, working and features of Liebert® iCOM controller, this includes LCD,
Button, Structure Chart of Control Menu, Start-Up Interface, Main Interface and Event features. The iCOM
controller adopts various menu operation, display board monitors. It also enables user easy browsing or settings
values; to access event records, graph data, sensor data and alarm setting through various menu options on the
screen.
It features a LCD backlight screen designed for saving energy. If no button is pressed within a certain period of
time (default: 5min), the backlight will be Off, until one of the buttons is pressed.
The advanced microprocessor makes the Liebert PEX+ chilled water AC control the temperature and humidity of
the equipment room accurately, Its features are as follows:
• Easy operation interface, multiple password protection to prevent unauthorized operation.
• Liebert iCOM has the restoration on a power-down and high, low voltage protection functions.
• Displays the operating time of important components through menu operation screen.
• Expert class malfunction diagnosis system can automatically display the present malfunction information to
facilitate easy maintenance.
• It can store 400 historical records, including MESSAGE, WARNING and ALARM.
• It has RS485 interface, adopting the industrial communication protocol.
• Temperature setting value: the range is 5 °C to 40 °C.
• Humidity setting value: the range is 20% RH to 80% RH.
• Humidity control mode: the control modes contains Pred, Comp, Rel.
• Supply Air Temperature limit: Enable and Disable can be selected.
• Supply Air Temperature limit setting value: the range is 5 °C to 25 °C.
The microprocessor is capable of generating following audible and visual alarms.
1. High temperature alarm
2. Low temperature alarm
3. High humidity alarm
4. Low humidity alarm
5. Loss of airflow alarm
6. Some self-defined alarms
Vertiv | Liebert PEX+Chilled Water | User Manual 48