Vertiv | Liebert® CRV4 | User Manual 72
Micro-Controller (Text-screen)
7.4.2. Operational Examples
Example 1: Enter the password to access the Main Menu
After the unit is powered On, user can enter the Main Menu by following the step-by-step instructions on the
Normal screen.
1. Press the Enter button to enter the Password screen.
2. Next, press the Enter button again to highlight the input data eld in the Password screen.
3. Press the Up and Down button to change the current password number.
4. Press the Enter button to conrm the password following which the Main Menu screen is populated on the
controller screen.
Example 2: Parameter setting
To set the high temperature alarm of the airow in the Hi Sup Temp in Alarm Stpt menu, perform the following
steps:
1. Press the Up and Down button to move the cursor to the Alarm menu option in the Main Menu section.
2. To enter the Alarm Menu, press the Enter button.
3. Press the Up and Down button to move the cursor to the Alarm Set option on the Alarm Menu screen.
4. Press the Enter button to access the Alarm Set screen.
5. Press the Up and Down button to move the cursor to the Alarm Stpt in the Alarm Set Screen.
6. Press the Enter button to enter the Alarm Stpt screen.
7. Press the Enter button to highlight the parameter eld of Hi Sup Temp.
8. In order to select the parameter option, scroll using the UP and Down buttons. Select/change the specic
Parameter.
9. Press the Enter button to conrm it following which the changes will take eect.
10. Press the Esc button to return to the previous menu screen.
If user do not press the Enter button to validate the changed parameter after the changing the parameter, the
change of Hi Sup Temp is invalid.
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