MS-4424 Instruction Manual - Fire-Lite Alarms

3. System Operation Last Event Recall
Last Event Recall
Last Event Recall allows the user to display the previous panel status. The Last Event Recall makes use
of the four panel switches as follows:
1. Press and hold in the TONE SILENCE switch.
2. With the TONE SILENCE switch held in, press (in sequence) the SYSTEM RESET switch, the
ALARM ACTIVATE switch, and then the ALARM SILENCE switch.
3. LEDs will light to indicate the last event recorded in the panel’s buffer.
4. Release the TONE SILENCE switch to return to normal operation.
To clear the Last Event buffer, press SYSTEM RESET twice.
Non-Silenceable Service
Initiating Zone #1 can be programmed as non-silenceable by following these steps:
1. Press and hold in the TONE SILENCE switch.
2. With the TONE SILENCE switch held in, press in sequence the ALARM SILENCE switch, then
the ALARM ACTIVATE switch, and finally the ALARM SILENCE switch again.
3. Release the TONE SILENCE switch.
Note: If both primary and secondary power sources are removed from the system, these settings will be lost. When
power is restored, Initiating Zone #1 will default to silenceable operation.
Sprinkler Supervisory Tracking
System Events
The Initiating Device Circuit for sprinkler supervisory zone can be programmed for tracking operation;
latching operation is the default setting. Canadian regulations require latching operation.
1. Press and hold in the TONE SILENCE switch.
2. With the TONE SILENCE switch held in, press in sequence the ALARM SILENCE switch, then
the ALARM ACTIVATE switch, and finally the ALARM ACTIVATE switch again.
3. Release the TONE SILENCE switch.
Note: If both primary and secondary power sources are removed from the system, this setting will be lost. When
power is restored, supervisory will default to latching operation.
Standby Condition
Green LED (AC power on) will be illuminated. All other LEDs (trouble and alarm) are off.
System Trouble Condition
Interruption of any of the electrically supervised circuits will illuminate the System Trouble LED. The
Trouble Relay Contacts will transfer. The piezo (local buzzer) will sound one second on, one second off,
and repeating until silenced. Silence the piezo by pressing the TONE SILENCE switch. The panel will
remain in the trouble state until the trouble condition has been cleared and the panel reset.
Alarm Condition
Upon activation of an initiating device, a red alarm LED will illuminate for that zone. In addition, the Alarm
Relay will activate, the piezo will sound, and Notification Appliance Circuit(s) will activate. (See “Output
Circuits” on page 22 for details).
36 MS-4424 Instruction Manual PN 15153:G1 10/22/02