3-9
When an alarm conditions exists, various signals, auxiliary relays, the city
connection, and the tone-alert may activate, depending on the system
configuration and the stage of the alarm condition.
CAUTION: Pressing the Alarm Silence key causes fire alarm evacuation
signals to turn OFF. Follow local procedures to silence alarm
evacuation signals.
To silence an alarm, perform the following:
Press the <ALARM SILENCE> key.
The <ALARM SILENCE> key, when pressed, turns OFF all circuits
programmed to follow the Alarm Silence key.
The ALARM SILENCED LED turns ON and remains ON.
Note: If Waterflow/Sprinkler Devices are activated, notification
appliances may or may not be silenced (depending on local code
requirements). Usually, a dedicated bell continues to sound to
indicate waterflow.
The <
SYSTEM RESET> key is used to return the system to its normal state after
an alarm condition has been cleared. When the <SYSTEM RESET> key is
pressed, it causes any latched circuits to reset automatically. This also resets
initiating devices, relays (including the city relay), notification appliances, and
all LEDs and indicators which are programmed to reset with the
<
SYSTEM RESET> key. The message, SYSTEM RESET IN PROGRESS, is
displayed when the key is pressed.
To reset the system, perform the following steps:
1. Restore/replace all affected devices in accordance with the instructions
provided with each device.
2. Press the <
SYSTEM RESET> key.
If a zone stays in alarm during the reset period, the system reset is aborted, and
the system remains in an alarm state. The display indicates the total number of
alarms present in the system along with a prompt to use the <ACK> key to
review the points. These points do not require acknowledgment. The alarm
LED remains ON to indicate that a device is still in an alarm condition.
If the system does not reset, and the display still shows an alarm although no
alarm condition exists, read the display to determine the type of device and the
zone number in alarm. Follow local procedures to investigate the area of the
building with the alarm. Look for devices still in alarm. Most devices latch until
they are reset, either by the system or manually.
Continued on next page
Handling Abnormal Conditions, Continued
How to Silence Alarms
How to Reset the System
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