32
ACZ 010A through 039A IOMM ACZ1
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 10) and scrolling method (known as the SCROLL mode). 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
11.
Pressing the MENU key from any menu screen will automatically return you to the MENU mode as
shown in Figure 10.
Figure 11, Display in the Shortcut (SCROLL) Mode and Keypad Layout
Air Conditioning
VIEW UNIT STATUS
Unit = COOL
Compr. #1/#2=OFF/OFF
Evap Pump = RUN
Menu Screens
Various 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 case they are used to set setpoint values.
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 12. A detailed description of each menu begins on page 34.
The ARROW keys on the controller are used to navigate through the menus. The keys are also used
to change numerical setpoint values contained in certain menus.
Changing Setpoints
Pressing the ENTER key changes the function of the ARROW keys to the editing function as shown
below:
LEFT key Default, changes a value to the factory-set default value.
RIGHT key Cancel, cancels any change made to a value and returns to the original setting.
UP key Increment, increases the value of the setting
DOWN key Decrement decreases the value of a setting.
These four edit functions are indicated by one-character abbreviation on the right side of the display
(this mode is entered by pressing the ENTER key).
MENU Key
ENTER Key
ARROW Keys
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