Unit installation

IOMM ACZ/AGZ-3 ACZ / AGZ-BM 113
Navigating Through the Menus
The menus are arranged in a matrix of screens across a top horizontal row. Some of these top-level
screens have sub-screens located under them. The general content of each screen and its location in
the matrix are shown in Figure 35 on page 114. A detailed description of each menu begins on page
115.
There are two ways to navigate through the menu matrix to reach a desired menu screen.
1. Scroll Mode: Scroll through the matrix from one screen to another using the four ARROW keys.
2. Menu Mode: Use shortcuts to work through the matrix hierarchy. From any screen, pressing the
MENU key will take you to the top level of the menu hierarchy. The display will show
ALARM, VIEW, and SET as shown in Figure 33. This corresponds to the second row of
screens on Figure 32. One of these groups of screens can then be selected by pressing the key
connected to it via the pathway shown in Figure 33.
For example, selecting ALARM will go the next row of menus under ALARM (ALARM LOG or
ACTIVE ALARM). Selecting VIEW will go the next level of screens under VIEW (VIEW UNIT
STATUS or VIEW UNIT TEMP). Selecting SET will go to a series of screens for looking at and
changing setpoints.
MENU Key
The MENU key is used to switch between the shortcut method (known as the MENU mode and as
shown in Figure 30) and scrolling method (known as the SCROLL mode shown in Figure 31). The
MENU mode is the shortcut to specific groups of menus used for checking ALARMS, for
VIEWING information, or to SET setpoint values. The SCROLL mode allows the user to move
about the matrix (from one menu to another, one at a time) by using the four ARROW keys. A
typical menu screen is shown in Figure 31.
Pressing the MENU key from any screen will automatically return you to the MENU mode as shown
in Figure 33.
Figure 34, Display in the Shortcut (SCROLL) Mode and Keypad Layout
Air Conditi oning
VIEW UNIT STATUS
Unit = COOL
Compr. #1/#2=OFF/OFF
Evap Pump = RUN
Menu Screens
The menus are shown in the controller display. Each menu screen shows specific information; in
some cases menus are used only to view the status of the unit, in some cases they are used for
checking and clearing alarms, and in some cases they are used to set setpoint values.
The ARROW keys on the controller can be used to navigate through the menus. The keys are also
used to change numerical setpoint values contained in certain menus.
MENU Key
ENTER Key
ARROW Keys (4)