Desert Aire CM3540 Series, Installation And Operation Manual

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The “Prg → Stpt” indicates that if the Prg key is pressed, the set points can be changed.
The “↑ ↓ → Help” indicates that if the UP or DOWN keys are pressed, the help screens will be
shown. The UP or DOWN keys will now scroll through the help screens.
Figure 3
Menu screens allow the user to select from a series of actions. The action that is capitalized
on the screen is selected by pressing the ENTER key. To cycle through the selections on a
menu screen, use the UP or DOWN keys.
If set points or selections can be altered on a screen, the ENTER key will cycle through those
items. Once the cursor is over an item, the UP and DOWN arrow keys will modify the setting.
Numeric values require that the ENTER key be pressed to accept the value. An “on” or “off”
selection will be altered as soon as the UP or DOWN keys are pressed. When an alarm is
triggered, the red LED behind the ALARM key will light, and remain on until the alarm is reset.
To view the alarms from any menu simply press the ALARM key. If no alarm is active, the
display will state NO ALARMS. If an alarm is present, it will be displayed along with the date
and time it was triggered. The bottom two lines will display two data points recorded when the
alarm was triggered.
To reset the alarm, use the DOWN key until the reset instructions are shown. Pressing the
ALARM key for three seconds will reset all active alarms. See Section 3 for further alarm and
alarm data logging information.
Screens which display a small up arrow in the upper right and a small down arrow in the lower
right part of a series of screens which can be accessed by pressing either the UP or DOWN
arrow keys. If the operator has not pressed a key for an hour, the terminal display will return to
the Home Screen.
Desert Aire - CM3540 Manual