Section 4: Operating Instructions
4.1 Panel Control Buttons
4.1.1 Acknowledge/Step
The first press of the
Acknowledge/Step
key silences the piezo sounder, changes flashing LEDs to steady and also changes the status field
on the LCD display from capital letters to small letters (
TROUBL
to
Troubl
). When the piezo is silenced, an
acknowledge
message is sent
to the printer and the history file.
Acknowledge
also sends a
silence piezo
command to the optional annunciators connected to the FACP.
The Acknowledge key will have no effect on the Notification Appliance Circuits.
When more than one event exists, the first press of the Acknowledge/Step key functions as described in the preceding paragraph. Subse-
quent pressing of the key
steps
through each active event.
4.1.2 Alarm Silenced
The
Alarm
Silenced
key performs the same functions as Acknowledge/Step except it will not step through each event when multiple
events are present at the panel. If an alarm exists, the Alarm Silenced key turns off all silenceable NACs (Notification Appliance Cir-
cuits) and causes the Alarm Silenced LED to turn on. It also sends an ‘alarm silenced’ message to the printer, history file and optional
annunciators. A subsequent new alarm will resound the system NACs. The Alarm Silenced LED is turned off by pressing the Reset key,
the Drill key or subsequent activation of the NACs.
Note that if Silence Inhibit has been enabled, NACs cannot be silenced for one minute following initiation of an alarm.
4.1.3 Drill/Hold 2 Sec
When the
Drill
key is held for a minimum of two seconds (time required to prevent accidental activations), the FACP turns on all NAC
outputs and turns off the Alarm Silenced LED if it was previously on. The
EVAC IN SYSTEM
message is shown on the LCD display. The
same message is sent to the printer and history file. The
Alarm Silence
key can be used to turn off all silenceable NAC outputs following
activation by the
Drill
key.
4.1.4 Reset
Pressing and releasing the
Reset
key turns off all NACs, temporarily turns off resettable power to 4-wire detectors, causes a
RESET IN
SYSTEM
message to be displayed on the LCD and sends the same message to the printer and history file. It also performs a lamp test by
turning on all LEDs, piezo sounder and LCD display segments after the
Reset
key is released. Any alarm or trouble that exists after a
reset will resound the system.
Note that if Silence Inhibit has been enabled, the FACP cannot be reset for one minute following initiation of an alarm.
4.2 LED Indicators
The five LED indicators, which are located on the front panel, operate as follows:
AC Power
This is a green LED which illuminates if AC power is applied to the FACP. A loss of AC power will turn off this LED
Fire Alarm
This red LED flashes when one or more alarms occur. It illuminates steady when the
Acknowledge/Step
or
Alarm Silence
key is pressed.
The Fire Alarm LED turns off when the
Reset
key is pressed. The LED will remain off if all alarms have been cleared.
Supervisory
This is a yellow LED that flashes when one or more supervisory conditions occur, such as a sprinkler valve tamper condition. It illumi-
nates steady when the
Acknowledge/Step
or
Alarm Silence
key is pressed. It turns off when the
Reset
key is pressed and remains off if all
supervisory alarms have been cleared.
Trouble
This is a yellow LED that flashes when one or more trouble conditions occur. It stays on steady when the
Acknowledge/Step
or
Alarm
Silence
key is pressed. The LED turns off when all trouble conditions are cleared. This LED will also illuminate if the microprocessor
watchdog circuit is activated.
Alarm Silenced
This is a yellow LED that turns on after the
Alarm Silence
key is pressed while an alarm condition exists. It turns off when the
Drill
or
Reset
key is pressed.
4.3 Normal Operation
With no alarms or troubles in the system, the display message is
System All Normal
along with the current time and date as shown below.
To set the time and date, refer to the appropriate section in this manual.
SYSTEM ALL NORMAL
10:00A 060718
86
GF505 & GF510 Manual —
P/N
53164
:B5 6/12/2018
