Unit installation

IOMM ACZ/AGZ-3 ACZ / AGZ-BM 119
6. Enter the desired value or word into the controller by pressing the ENTER key. Note that
pressing the <C (RIGHT Arrow Key) will cancel the entry and 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........... This function is 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.
Set 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 be normally 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. NETWORK, used with BAS signal.
Unit Mode settings can be:
1. COOL, normal setting used with air conditioning applications.
2. TEST, for use by service technician for certain test procedures.
SET UNIT SPs (2)
Available Modes
=COOL
Set w/UnitSwitch Off
Available modes are COOL and TEST. The unit must be shut off when changing Mode.
SET UNIT SPs (3)
Demand Limit=No
Multipoint Power=No
LowAmbLock= XX.X°
°°
°F