Chapter 3: Operating instructions
48 EST3X Technical Reference Manual
Pressing the Alarm Silence button does not silence alarm signals under the
following conditions:
• When a waterflow alarm switch is active and the system is configured to
prevent silencing alarm signals activated by a waterflow alarm switch
• When the system is configured to delay the silencing of alarm signals, in
which case the Alarm Silence button may not be operational for up to five
minutes following an alarm event
• May automatically silence notification appliances after 1 to 60 minutes
Silenced outputs automatically re-sound when:
• The Alarm Silence button is pressed a second time
• Another alarm input activates
• Another alarm input in the same zone activates, unless the system is
configured to prevent it
Note: The alarm silence function can be programmed in the 3-SDU for an access
level password.
To silence alarm signals:
1. Press the Alarm Silence button.
2. If prompted, enter the access level password.
Acknowledging events
When an event occurs, it is important that you acknowledge it and review the
issue. The control panel handles the event by showing it on the LCD screen as
an event message, sounding the panel buzzer, placing the event in the
appropriate queue (Alarm, Supervisory, Trouble, or Monitor), and causing the
Acknowledge LED to flash.
Pressing the Acknowledge button places a check mark and the word
“Acknowledged” to the right of the event. The LED stops flashing and the panel
silences after all events have been acknowledged.
To acknowledge an event:
1. Press the Acknowledge button.
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