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Chapter 1 Precision Air Conditioner Controller
Password level
Level 1
Level 2
Level 3
1.5 Main Menu
The controller menus are constructed in a tree-like structure, as shown in Appendix 1 Menu Structure Figure of
PACC Controller (Standard Configuration).
After user starts up the unit, in the Main Interface, press Enter to access Password Interface, and then enter the
main menu and each submenu to query, set or modify the parameters.
Enter the main menu interface, and operate according to the following procedures:
1. Press the ENTER key to access the password interface screen;
2. Press the ENTER key to highlight the input data field in the password interface;
3. Press the UP or DOWN key to change the current number;
4. Press the Enter key to confirm the password and enter the Main Menu interface.
1.5.1 Submenu
1. The Main Menu includes 10 sub-menus and is displayed on two screens, as shown in Figure 1-5.
2. The menus are classified into user menus and professional maintenance menus with two different
password-protected levels. User menus are described in 1.6.1 User Menu and professional maintenance menus are
described in 1.6.2 Professional Maintenance Menus.
3. Press Up and Down in Main Menu to select submenus and press Enter to access the maintenance level submenu.
Note
The menu with black dot displayed on left means this menu has submenu or the parameter of this menu is settable.
Setting parameters of submenus
Press Up or Down to move the cursor to the submenu to be selected, when the cursor is in the selected menu, a black
dot is displayed on the left side of the menu. At this time, press Enter to access the submenu or set the parameters of
this menu. The menu is classified into the menu with settable parameter or the menu with non-settable parameter. For
the setting ranges of the settable menu items, refer to Appendix 3 Parameter Setting Table.
The parameter setting operation is as follows with high temperature alarm control menu as an example:
1. Press Up or Down in Main Interface to move cursor to Alarm Menu.
2. Press Enter to enter the Alarm Menu interface.
Figure 1-4 Password interface
Table 1-4 Password level
User
General operator
Maintenance personnel
Platform engineer
Figure 1-5 Main Menu interface
Liebert. PEX+Series Precision Air Conditioner User Manual
Initial password
Level of access for menus
0001
[1]
[1], [2]
[1], [2], [3]
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