NFS2-640 Operations P/N 52743:L4 06/10/19 19
Fire Alarm Mode of Operation Operation of the Control Panel
3.3.2 How to Respond to a Fire Alarm
If the control panel indicates a fire alarm, you can do the following:
• To silence only the panel sounder:
Press the
ACKNOWLEDGE/SCROLL DISPLAY key. The local sounder will silence and the FIRE
ALARM LED will change from flashing to steady.
The control panel will send an acknowledge message to the LCD display, remote annunciators,
history buffer, installed printers, and CRT-2s.
• To silence the panel sounder and any activated outputs that are programmed as silenceable:
Press the
SIGNAL SILENCE key. The FIRE ALARM LED and SIGNALS SILENCED LED light steady.
The control panel sends an Signal Silenced message to the remote annunciators, history buffer,
installed printers, and CRT-2s. The figure below shows a sample Alarm Silenced message.
Figure 3.3 Sample Alarm Silenced Message
1. Check the Alarm message for the location and type of trouble.
2. Correct the condition causing the alarm.
3. When you finish correcting the alarm condition, press the
SYSTEM RESET key to return the
control panel to normal operation (indicated by the “System Normal” message). The control
panel sends a “System Normal” message to the LCD display, History buffer and installed
printers, FDU-80 annunciators, and CRT-2s.
3.3.3 Interpreting Fire Alarm Type Codes
The Type Code that displays in the Alarm message indicates the function of the point that initiates
the fire alarm. For example, a monitor module with a
PULL STATION Type Code means that the
monitor module connects to a manual pull station. The table below lists the Type Codes that can
appear in an alarm message:
Status banner
Time and date of the
Alarm Silenced
SIGNALS SILENCED
03:12P 041515 Tue
Type Code
Latching
(Y/N)
Purpose What it does
Monitor Modules
Blank Y Indicates activation of a device with no description Lights FIRE ALARM LED and activates CBE
HEAT DETECT Y Indicates activation of a conventional heat detector Lights
FIRE ALARM LED and activates CBE
MONITOR Y Indicates activation of an alarm-monitoring device Lights
FIRE ALARM LED and activates CBE
PULL STATION Y Indicates activation of a manual fire-alarm-activating
device, such as a pull station.
Lights
FIRE ALARM LED and activates CBE
RF MON MODUL Y Indicates activation of a wireless alarm-monitoring device Lights
FIRE ALARM LED and activates CBE
RF PULL STA Y Indicates activation of a wireless manual fire-alarm-
activating device, such as a pull station
Lights
FIRE ALARM LED and activates CBE
SMOKE CONVEN Y Indicates activation of a conventional smoke detector
attached to an FZM-1
Lights
FIRE ALARM LED and activates CBE
SMOKE DETECT Y Indicates activation of a conventional smoke detector
attached to an FZM-1
Lights
FIRE ALARM LED and activates CBE
WATERFLOW Y Indicates activation a waterflow alarm switch Lights
FIRE ALARM LED and activates CBE
EVACUATE SW N Performs Drill function. Activates all silenceable outputs
Table 3.1 Fire Alarm Type Codes (1 of 3)
To Next Page
Loading...
Need help?
General
