Password Interface; Menu Structure; Guide On Finding Menus; Main Menu - Liebert DM User Manual

38 Chapter 5 Precision Air Conditioner Controller

5.4.3 Password Interface

Press the ENTER button in the MAIN interface and the password interface shown in Figure 5-4 will appear. Inputting
the correct password and confirming it can enter the Main Menu interface. For details, refer to 5.2.2 Operation
Example.
Three levels of passwords are provided for accessing the menu interface. The level of access for any menu item is
indicated by the number enclosed in bracket at the end of each line, such as [1], [2] and [3]. The users, default
passwords and the accessible menu levels of different passwords are listed in Table 5-4.
Password level
Level 1
Level 2
Level 3

5.5 Menu Structure

The menus of the controller are constructed in a tree-like structure in which levels of submenus are accessed through
the main menu. Some menus are password protected. Inputting different levels of password can access different
levels of submenu.

5.5.1 Guide On Finding Menus

The menu structure of the controller is relatively complex. To find the required menu, you can use the guides in Table
5-5 or refer to Appendix 4 Menu Structure Figure.
Inquire or set the menus relating to alarm
Set temperature or humidity
Inquire the input status, output status and self-defined input
status of the AC unit components
Set the input and output status of the AC unit components
Set the time and date
Inquire the temperature and humidity changes from 6h to 48h
Inquire the running times of the AC unit components or reset
the running overtimes
Inquire the on/off records of some important components,
including fan, compressor, humidifier and electrical heater
If multi-units is used, inquire or set the teamwork mode, unit
number, shandby number, cascade, rotation number, manual
cascade, cascade frequency, cascade time as well as
inquiring the status of the units #00 ~ #15

5.5.2 Main Menu

The Main Menu includes eight submenus, displayed in two screens, as shown in Figure 5-5. For details, refer to
Appendix5 Alarm Control Menu Table. For quick index of the menus, refer to 5.5.1Guide On Finding Menus.
Enter Password:
Figure 5-4 Password interface
Table 5-4 Password level
User
General operator
Maintenance personnel
Facotory technician
Table 5-5 Guide on finding menus
Task
DM Series 16kW Air Conditioner User Manual
D01 I10
0
***
Initial password
0001
Recommended title
5.5.3 Alarm Menu
5.5.4 Set Point Control
5.5.5 System Status
5.5.6 System Menu
5.5.7 Set Time/Date
5.5.8 Graph Menu
5.5.9 Run Hours
5.5.10 On/Off Record
5.5.11 Team Work
Level of access for menus
[1]
[1], [2]
[1], [2], [3]