Microprocessor Control; Feature Overview; Figure 26 Microprocessor Control Layout - Emerson VERTIV Liebert Mini-Mate2 Series User Manual

6.0 M
ICROPROCESSOR
The Microprocessor Control for the Liebert Mini-Mate2 unit features an easy to use, menu-driven
LCD. The menus, control features and circuit board details are described in this section. Detailed
information concerning controls (7.0 - System Performance Microprocessor Controls) and
alarms (8.0 - Alarms) are provided.
6.1

Feature Overview

To turn the unit ON, press the ON/OFF (I/O) key after power is applied. To turn the unit OFF, press
the ON/OFF/(I/O) key before power is disconnected.
The following control keys may be used to move through the menus, as prompted on the LCD display:
• I/O (On/Off)—Turns unit On or Off.
• MENU—Enables user to access the program menu to change control parameters, alarms, setback
schedule, etc.
• Up Arrow—Increases the value of a displayed parameter while in a set mode (setpoints, time,
etc.).
• ESC (Escape)—Allows user to move back to a previous menu.
• HI/LO (Fan Speed)—Changes the fan speed between high and low.
• Alarm Silence/Help—Silences active, current alarms. If no alarms are present, help text will
appear.
• Down Arrow—Decreases the value of displayed parameter while in a set mode.
• ENTER—Stores changes or new settings in the microprocessor.

Figure 26 Microprocessor control layout

Menu Key
On/Off Key
Fan Speed Key
Alarm Silence/
Help Key
Active alarms are displayed on the LCD screen and sound an audible beeper. To silence an alarm,
press the Alarm Silence/Help key as prompted on the display.
Setpoints, DIP switch settings and other selections were made during factory testing of your unit and
are based upon typical operating experience. (Other default selections were made according to options
included with your unit). MAKE ADJUSTMENTS TO THE FACTORY DEFAULT SELECTIONS.
ONLY IF THEY DO NOT MEET YOUR SPECIFICATIONS.
Allowable ranges are displayed by pressing the help key. A password will be required (if enabled) to
change setpoints, time delays, etc.
The display normally shown includes the present room temperature, humidity, active status
functions (cooling, heating, dehumidifying, humidifying), normal fan speed/low fan speed and active
alarms. The Status Display may also be selected from the Main Menu.
® ™
Liebert Mini-Mate2
C
ONTROL
40

Microprocessor Control

Up Arrow
Escape Key
Enter Key
Down Arrow