GST303 /GST306
Extinguishing Control Panel
Installation and Operation Manual
Page 18
Delay start control can be realized through field emergency start button and the FACP.
When field emergency start button of protected zone is pressed, the control panel
will enter delay start stage and report action of emergency start button to the FACP.
The control panel will give start command after the delayed period. In this period,
you can stop the command according to field situation. Please refer to section
5.6.3 for the setting of delay time.
When detectors on the signal loop of the FACP detect fire, and when automatic
start of fire suppression devices is enabled on the FACP, if only the cause and
effect equation to start the extinguishing devices is valid, the FACP will give start
command and the control panel will enters delay start state.
In delay period, sounder strobes will be activated.
Delay start time of the control panel can be set within 0s
～
45s. The
In Delay
LED is lit
during delay period.
Note:
Delay start can only be done through the FACP in “Release Enable” state. When
the FACP is i
n “Partially Automatic” state, cause and effect equations including “= =”
take part in automatic start logic
; in “Automatic” state, cause and effect equations
including “=”and “= =” can take part in automatic start logic.
6.2.2 Stop
You can stop gas-extinguishing devices when they are in delay stage. According to
field condition, different methods can be used:
①
In delay period before start command is sent out, pressing “Stop” key of
corresponding zone on the control panel can realize emergency stop of
extinguishing devices.
②
In delay period before start command is sent out, pressing field emergency stop
button can realize emergency stop.
③
In delay period before start command is sent out, pressing “Start” key on keyboard
of the FACP main unit and enter user code and device type of emergency stop
device can realize emergency stop.
④
In delay period before start command is sent out, pressing
the key on fireman’s
control
panel corresponding to “Gas abort” can realize emergency stop.
⑤
In delay period before start command is sent out, opening the door to the
protected zone will temporarily stop gas extinguishing process. But please be
aware that the start delay countdown will resume if there is still valid start signal.
Any of the above four methods has to be used to stop gas extinguishing.
If the field emergency stop button or the Stop key is pressed, the control will report
to the FACP action of the emergency stop button. After the stop command is sent
out,
Stop
LED will illuminate, and the gas stop indicator in the protected zone will
illuminate.
If the door to the protected zone is opened during the delay period, the gas stop
indicator will illuminate. But if the door is opened in normal condition without
delayed start, the gas stop indicator will not illuminate.
6.2.3 Fault Indication
When external devices or cable to the control panel are in fault, the control panel will
report gas extinguishment fault (indicating fault in a certain zone).
