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Liebert
®
AC4
™
32
7.4 Setup System - Setup Common Alarm
The audible alarm sounds after the Liebert AC4 detects an alarm condition in any input that has
been defined as alarmable. Once the alarm is silenced, there are two options:
• By default, the common alarm remains energized until all input alarms are cleared.
• You may change this setting to de-energize the common alarm automatically once the alarm is
silenced.
You might want to reset the common alarm with silence if an external alarm—for example, a horn—is
connected to the common alarm output contacts.
You might not want to reset the common alarm contacts (let contacts reflect/track alarms) and simply
silence the audible horn.
To change the common alarm setting:
Log In and Choose Setup System
• From the Main Menu, use the arrows
↑↓ to choose System and Control, then press Enter ↵ (see
7.1 Login for help).
• Enter your password at the Login screen.
• From the System and Control Menu, use the arrows
↑↓ to choose Setup System, then press
Enter ↵.
Change to Reset (Y) or Not Reset (N)
• From the Setup System Menu, shown at right, use the arrows
↑↓
to
choose Setup Common Alarm and press Enter ↵.
• By default, the common alarm is set up not to reset automatically
when the alarm is silenced (N). To change this setting, use the
arrows
↑↓ to choose Y (Yes - reset with silence) or N (No - not
reset), then press Enter ↵.
Setup System Menu
SETUP INPUTS
> SETUP COMMON ALARM
SETUP ZONES
↑↓=NEXT ↵=SELECT
SETUP OUTPUTS
SETUP SYSTEM INFO
SETUP OPERATION
Reset Common Alarm
RESET COMMON ALARM
WITH SILENCE? N
↑↓=Y/N ↵=END