Microprocessor Controller for DOAS
12
®
The microprocessor controller is located in the unit control center. The face of the controller has six buttons,
allowing the user to view unit conditions and alter parameters. The microprocessor controller is pre-programmed
with easy to use menus. A remote display is also available, which connects via the
J10
port. A six wire patch cable
is needed.
Display Use
Keypad Description
Button
Description
Functions
Main Menu
Press to go directly to the Main Menu from any screen.
From the Main Menu, navigate to the following screens:
• Unit Enable
• Unit Status
• Ctrl Variables
• Alarm Menu
Alarm
The Alarm button flashes when there is an active alarm.
Press to view active alarms.
Press twice to go to the alarms reset screen.
Escape
Press from the Main Menu to view the Unit Status screen.
Press to go back one menu level.
Press when editing a variable to cancel editing.
Up
Press to navigate through the menus/screens.
Press after entering a variable to increase a current value.
Enter
Press to enter a highlighted menu or screen item.
Press to enter a writable variable and press again to confirm the new variable value.
Down
Press to navigate menus/screens.
Press after entering a variable to decrease the current value.
Virtual keypad/display on web interface only.
These two buttons on the virtual keypad/display are used to simulate two-button actions on the handheld
keypad/display.
To simulate pressing two buttons simultaneously:
1. Click on 2-Button Click.
2. Then, sequentially click on two keypad buttons (Main, Alarm, Escape, Up, Enter, Down).
To simulate pressing and holding two buttons simultaneously:
1. Click on 2-Button Hold.
2. Then, sequentially click on two keypad buttons (Main, Alarm, Escape, Up, Enter, Down).
Example of Parameter Adjustment
Supply air low limit
Alarm when supply is
below:
32.0º
F
Alarm delay:
300s
Once the cursor has reached the desired parameter, press the
buttons to
adjust the value.
The cursor always begins in the upper left corner of the display and will be
blinking. Press the
button to move the cursor down for parameter adjustment.
Supply air low limit
Alarm when supply is
below:
35.0º
F
Alarm delay:
300s
When satisfied with the adjustment, press the
button to save the parameter.
When finished, make certain the cursor is in the upper left corner. If the cursor is
not in the upper left corner, the changes will not be saved. The cursor must be in
the upper left corner to enable screen advancement.
Supply air low limit
Alarm when supply is
below:
32.0º
F
Alarm delay:
300s
