APC ACRA100 Installation Manual download pdf (Page 39)

31Pumped Refrigerant System Operation and Maintenance

Adjust display

Path: Main Menu > Configure Display

Contrast. Adjust the visibility of the screen text. Lower numbered settings provide darker text; higher

numbers provide lighter text. Settings range from 0–7.

Key Click. Enable or disable an audible tone that will sound every time a key is pressed on the display

interface.

Beeper Volume. Set the volume of the display interface alarm tone, and for the audible tone that sounds

every time a key is pressed on the display interface.

Beep On Alarm. Set the cooling unit to sound an audible tone every 30 seconds when a new alarm

occurs. Silence the audible tone by pressing any key on the display interface. When the alarm clears

itself, the tone will stop on its own.

Display units

Path: Main Menu > Set Display Units

Set the units of measure for the cooling unit to either US or Metric.

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APC ACRA100 Installation Manual Page 39