Vertiv | Liebert® CRV4 | User Manual 75
Micro-Controller (Text-screen)
Table 7-3 Password Level
Password
Level
User
Initial
Password
Remark
Level 1
General
operator
1490
Browse all menu information. Only set temperature and
humidity Setpoints. Cannot change any values and settings
Level 2
Maintenance
personnel
- Browse all menu information. Set all parameters
Level 3
Factory
technician
- -
For detailed operation on entering the password, refer to Section 7.4.2 Operation Example. If incorrect password
is entered in the controller, the menu options can only be viewed, but the parameter settings can not be
changed. In this case, to return to the Main screen, User can press the ESC button and then press the Enter
button to re-enter the Password interface again.
7.6. Menu Structure
7.6.1. Main Menu
By entering the correct credentials for the password and conrming it, the Main Menu screen will be accessible.
For more information, refer to the Appendix 2 Display Menu Structure Diagram which denes the menu
structure of the Micro-processing controller. On selecting a menu item, that item will be highlighted. Figure 7-7
shows the Main Menu screens:
Figure 7-7 Main Menu Screens
The users can change most of the parameters setting; however, there are some parameters that cannot be
modied or altered.