Liebert AC4 User Manual

7.7.1 Change Password
A password is required to access the Liebert AC4’s system and control
options, as described in Login on page41. The password consists of four
characters (see Table 7.1 on page41 for valid characters). The default
password is AAAA.
Change the Password
To change the password:
• From the Setup System Info Menu, use the arrows to choose
Change Password, then press Enter.
• To change your password:
• Use the arrows to choose a character.
• Press Enter to advance to the next character position.
• When finished, press Enter again.
Reset Password to the Factory Default (“AAAA”)
To reset the password to the factory default of AAAA:
• Locate DIP switch 1 on the unit’s circuit board (see Controller Board Overview on page9) and
move all switches to the OFF position (down).
• Move the second switch to the ON position, then to the OFF position.
• Move the seventh switch to the ON position, then to the OFF position.
• Move the eighth switch to the ON position, then to the OFF position.
The password should now be AAAA.
7.7.2 Set Date & Time/Automatic Daylight Saving Time
The Liebert AC4 has a built-in real-time clock that is backed up by an encapsulated lithium battery and
set up to adjust automatically for daylight saving time twice a year. The Setup System Info menu allows
you to set the current date or time or change the automatic adjustment at any time.
To change the daylight saving time setting or to set the current date or time:
• From the Setup System Info Menu, use the arrows to choose Set
Date & Time, then press Enter.
• To change the daylight saving time setting:
• To the right of Daylight Svg Time, use the arrows to choose
Y (Yes - automatically adjust for daylight saving time) or N
(No), then press Enter.
• The format of the date and time is DD-MMM-YY HR:MM:SS. To
set the current date or time:
• Press Enter to advance to the next character position you
want to change.
• Use the arrows to choose from available entries:
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Liebert AC4 Specifications

General

Brand	Liebert
Model	AC4
Category	Control Unit
Language	English