User Manual
Table Of Contents
- Important Safety Instructions
- SAVE THESE INSTRUCTIONS
- 1.0 Introduction
- 2.0 Startup
- 3.0 Operation with iCOM Control
- 4.0 Liebert iCOM Display Components and Functions
- Figure 2 Liebert iCOM display components
- Table 1 Keyboard icons and functions
- Figure 3 Liebert iCOM default screen symbols
- 4.1 Navigating Through the Liebert iCOM Display
- 4.2 Changing Operational Settings
- 4.3 Changing Liebert iCOM’s Display Settings
- 4.4 Graphical Data Record
- 4.5 Liebert iCOM Service Menu Icons and Legend
- 4.6 Wiring for Unit-to-Unit Communications—U2U
- 4.7 Entering Network Setup Information
- 4.8 Viewing Multiple Units with a Networked Large Display
- 5.0 Operation
- 6.0 Alarm Descriptions
- 6.1 Standard Alarms
- 6.1.1 Change Filter
- 6.1.2 Compressor Overload
- 6.1.3 High Head Pressure
- 6.1.4 High Humidity
- 6.1.5 High Humidity and Low Humidity (Simultaneously)
- 6.1.6 High Temperature
- 6.1.7 High Temperature and Low Temperature (Simultaneously)
- 6.1.8 Humidifier Problem
- 6.1.9 Loss of Air Flow
- 6.1.10 Loss of Power
- 6.1.11 Low Humidity
- 6.1.12 Low Suction Pressure
- 6.1.13 Low Temperature
- 6.1.14 Main Fan Overload
- 6.1.15 Short Cycle
- 6.2 Optional Alarms
- 6.3 Set Alarms—User Menus
- 6.1 Standard Alarms
- 7.0 Component Operation and Maintenance
- 7.1 System Testing
- 7.2 Filters
- 7.3 Blower Package
- 7.4 Refrigeration System
- 7.4.1 Suction Pressure
- 7.4.2 Discharge Pressure
- 7.4.3 Superheat
- 7.4.4 Thermostatic Expansion Valve
- 7.4.5 Hot Gas Bypass Valve—Not Available on Digital Scroll Units
- 7.4.6 Air Cooled Condenser
- 7.4.7 Water/Glycol Cooled Condensers
- 7.4.8 Motorized Ball Valve—Digital Scroll Compressor
- 7.4.9 Regulating Valve—Scroll Compressor
- 7.4.10 Drycooler Settings
- 7.4.11 Compressor Oil
- 7.5 Compressor Replacement
- 7.6 Facility Fluid and Piping Maintenance for Water and Glycol Systems
- 7.7 Humidifier
- 8.0 Troubleshooting
- Table 12 Blower troubleshooting
- Table 13 Chilled water troubleshooting
- Table 14 Compressor and refrigeration system troubleshooting
- Table 15 Dehumidification troubleshooting
- Table 16 Glycol pump troubleshooting
- Table 17 Infrared humidifier troubleshooting
- Table 18 Steam generating humidifier troubleshooting
- Table 19 Reheat troubleshooting
- 9.0 Monthly Maintenance Inspection Checklist
- 10.0 Semiannual Maintenance Inspection Checklist

Liebert iCOM Display Components and Functions
11
4.1.2 Accessing Menus and Settings
Viewing Data
No password is required to view data or settings.
To view data:
1. From the home screen, press the Enter key to view the User Menu (see Figure 8).
2. Press Enter again to highlight the first icon.
3. Use the keyboard’s arrow keys to move to the icon for the data you wish to view.
4. Once that icon is highlighted, press Enter again to open that menu.
• If a password is required, see 4.1.3 - Entering the Password.
• If a menu has more than one screen, the Liebert iCOM display will have text at the top simi-
lar to this: (page 1 of 2).
5. Press Enter to select the first line of data.
6. Use the Up and Down arrow keys to scroll to the desired data point.
7. Press ESC to move back to higher level menus.
4.1.3 Entering the Password
Most settings in the Liebert iCOM are protected by a factory-set password, 1490. To enter the pass-
word:
1. From the home screen, press the Enter key to view the User Menu (see Figure 8).
2. Press Enter again to highlight the first icon.
3. Use the keyboard’s arrow keys to move to the icon for the data you wish to change.
4. Once that icon is highlighted, press Enter again to open that menu.
5. Press Enter to highlight the Password line.
6. With the Password line highlighted, press Enter to highlight the first digit in the password
7. Enter the password, 1490.
Use the Up and Down arrow keys to select a numeral for the first digit of the password.
Move to the next digit of the password with the Right arrow key.
Select the numerals for all four digits with the same process.
8. After all four digits of the password have been entered, press the Enter key.
Figure 6 Entering the password
NOTE
Do not press the ESC key or the Liebert iCOM will move to the previous screen and the
password must be re-entered before changes may be made.
SETPOINTS
for next /prev unit to select parameter
then to change parameter to confirm
UNIT 01
PASSWORD (Actual Level 3)
Temperature Setpoint
Humidity Setpoint
Humidity Control Type
Supply Sensor
Supply Setpoint
Backup Temperature Setpoint
U101
U102
U103
U104
U105
U106
U107
U108
U109
U110
U111
????
72°F
50.0%
Relative
Disabled
°F
73°F
Password command line—highlight
by pressing Enter
After highlighting the Password command line, press
Enter again to highlight the first digit. Use the Up and
Down arrow keys to change the first digit. Move to the
next digit in the Password with the right arrow.
Password is
factory-set
at 1490