Emerson 3000/ITR User Manual

Changes to the Liebert Challenger 3000/Liebert Challenger ITR’s operation settings in the Set 

Alarms and Setpoints menus require a password.
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.

• If a password is required, see 4.1.3 - Entering the Password.

5. After entering the password, use the Up and Down arrow keys to scroll to and highlight the 

operational setting to be changed.

6. Press Enter to highlight the values for that setting.
7. Use the Up and Down arrow keys to change the value.
8. Press Enter to accept the change. (The value will no longer be highlighted.)
9. Press ESC to deselect the operational setting. (The setting will no longer be highlighted.)
10. Press ESC again to move to previous screens.

View and change 

operational 

setpoints

Contains spare 

parts available on 

site; Large Display 

Only

Lists last 400 

events and 

alarms

View Only

Displays average room 

air temperature and 

supply refrigerant 

temperature graphs; 

Data is View Only;

Display scale is 

adjustable

Shows status of 

all connected 

units; View Only; 

Large Display 

Only

Allows user to 

change settings for 

alarms

Shows readings 

of sensors; View 

Only

Lists all current 

alarms; View Only

Change settings 

for display: 

language and 

time

Records the run time of 

all components and

allows setting of limits on 

run time; View Only

Used to set 

operating period, 

including startup 

and shutdown; 

Large Display 

Only

Contains key 

contact information 

for service

NOTE
Menu shows icons only; text is explanatory and does not appear on the Liebert iCOM display.