Using the Controller
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IOM 1242-8 • PATHFINDER
®
MODEL AWV CHILLERS
Using the Controller
Unit Controller Operation
Figure 78: Unit Controller
The keypad/display consists of a 5-line by 22-character
display, three buttons (keys) and a “push and roll” navigation
wheel. There is an Alarm Button, Menu (Home) Button, and
a Back Button. The wheel is used to navigate between lines
on a screen (page) and to increase and decrease changeable
values when editing. Pushing the wheel acts as an Enter
Button and will jump from a link to the next set of parameters.
Figure 79: Typical Screen
▲ ▼
View/Set Unit
3
Status/Settings
>
Set Up
>
Temperatures
>
Date/Time/Schedule
>
Three types of lines exist:
•
Menu title, displayed in the first line as in
.
• Link (also called Jump) having an arrow ( > ) in the right
of the line and used to link to the next menu.
• Parameters with a value or adjustable set point.
The first line visible on each display includes the menu title and
the line number to which the cursor is currently “pointing”, in
the above menu representation, “Temperatures” is highlighted.
The leftmost position of the title line includes an “up” arrow ▲
to indicate there are lines (parameters) “above” the currently
displayed line; and/or a “down” arrow ▼ to indicate there are
lines (parameters) “below” the currently displayed items or an
“up/down” arrow to indicate there are lines “above and below”
the currently displayed line.
Each line on a screen can contain status-only information or
include changeable data fields (set points).
A line in a menu may also be a link to further menus. This
is often referred to as a jump line, meaning pushing the
navigation wheel will cause a “jump” to a new menu. An arrow
is displayed to the far right of the line to indicate it is a “jump”
line and the entire line is highlighted when the cursor is on that
line.
Navigating
When power is applied to the control circuit, the controller
screen will be active and display the Home screen, which can
also be accessed by pressing the Menu button. The navigating
wheel is the only navigating device necessary, although the
Menu, Alarm, and Back buttons can provide shortcuts as
explained later.
Passwords
There are four levels of access for the user interface:
• No password
• Operator level - 5321
• Technician/Manager level - will be provided at startup
• Daikin Applied service technician level
Enter passwords from the Main Menu:
• Enter Password links to the Entry screen, which is an
editable screen. Pressing the wheel goes to the edit
mode where the password can be entered. The first (*)
will be highlighted; rotate the wheel clockwise to the first
number and set it by pressing the wheel. Repeat for the
remaining three numbers. The password will time out
after 10 minutes with no keypad activity, and is cancelled
if a new password is entered or the control powers down.
• Not entering a password allows access to a limited
number of parameters.
Information presented at the controller is relative to the
password access level; the most extensive menus are
available to service technicians.
Entering an invalid password has the same effect as not
entering a password.
LCD Screen
“Push and Roll” Wheel
Alarm Button
Menu Button
Back Button
