Unit installation

IOMM ACZ/AGZ-3 ACZ / AGZ-BM 85
to Level when the password is entered properly. Setpoints can now be changed. Once entered, a
password remains valid for 15 minutes after the last key-press.
2. Select the desired menu by scrolling through SET menus with the UP, DOWN, LEFT and
RIGHT ARROWS. Alternatively, press the MENU button, select the type of setpoint desired,
then scroll up or down to the desired menu screen.
3. When the desired menu screen is reached, select the desired field within the menu by moving
between lines using the ENTER key. Some fields may not be accessible due to settings in other
menus.
4. If a numerical value is being changed, use the INCREMENT key (UP ARROW) to increase or
the DECREMENT key (DOWN ARROW) to decrease the value of the setpoint.
5. If a word type setpoint (for example, YES or NO) is to be selected, the choices are pre-loaded
into the menu and selected by scrolling through the available setpoint options using the UP
ARROW key.
6. Enter the desired value or word into the controller by pressing the ENTER key. Note that
pressing <D will go to the factory default setting.
Stated another way, once the desired set screen is reached, editing is accomplished by pressing the
ENTER key until the desired field is selected within the set screen. This field is indicated by the
cursor blinking on it. The arrow keys will then operate as defined below.
<D DEFAULT......... Set value to original factory setting
<C CANCEL........... Not currently operative
<+ INCREMENT..... Increase the value or select the next item in a list.
<
− DECREMENT.... Decrease the value or select the previous item in a list.
During edit mode, the display shows a two-character-wide menu pane on the right as shown below.
These characters relate to the functions shown above. After a field has been set to the desired new
values, press ENTER. This enters the value and scrolls to the next field.
SET UNIT SPs (X) <D
(data) <C
(data) <+
(data) <-
Additional fields can be edited by pressing the ENTER key until the desired field is selected.
Unit Setpoints
SET UNIT SPs (1)
Unit Enable=OFF
Mode=COOL
Source=KEYPAD
Unit Enable is an external signal, or a keypad setting, that keeps the unit off when the setting is OFF,
and allows it to run if there is a call for cooling when the setting is ON. The source for the
signal is selected in the 4
th
line and can be:
1. KEYPAD, in which case the selection is made in line 2 and would normally be selected as ON.
This is the normal setting when no external signals are controlling the unit.
2. DIGITAL INPUT, in which an external switch is wired across terminals #25 and #35. (See
wiring diagram page 48).
3. BAS, used with BAS signal.