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Section
4.20
Emergency Hold Device.
The ECD has provision for an emergency hold device. Refer to Sections 2.3.5.6, 3.3.4
and 3.3.3.1.
Means shall be provided to transmit the information concerning the activation of an
emergency hold device. Refer to sections 2.3.5.1 and 3.3.5 for further information.
Section
4.21
Control of Flooding Time.
The ECD has provision to control the duration of the flooding time. Refer to Section
3.3.3.1 for programming.
Section
4.23
Manual Only Mode.
The ECD has provision to switch from Auto/Manual to Manual Only means of
establishing the extinguishing signal. This can be by Level 2 User Menu Option, fixed
input, programmable input or by Key-Switch Option. Refer to Sections 2.3.5.6, 3.3.4
and 3.3.3.1.
Section
4.24
Triggering Signals to Equipment within the System.
The ECD has provision to transmit triggering signals to extinguishing system
equipment such as pilot cylinders, warning devices, etc. Refer to Sections 2.3.5.5 and
3.3.5.
These circuits are required to be monitored for fault conditions by the ECD.
Section
4.26
Triggering Signals to Equipment outside the System.
The ECD has provision to transmit triggering signals to other equipment such as
doors, ventilation shut down, etc. Refer to Sections 2.3.5.1 and 3.3.5.
These circuits are to be monitored for fault conditions by the receiving device.
Section
4.27
Emergency Abort Device.
The ECD has provision for an emergency abort device. This can be by fixed input or
programmable input option. Refer to Sections 2.3.5.6, 3.3.4 and 3.3.3.1.
Means shall be provided to transmit the information concerning the activation of an
emergency abort device. Refer to sections 2.3.5.1 and 3.3.5 for further information.
Section
4.30
Activation of Alarm Devices with Different Signals.
The ECD has provision to activate sounding devices with different signals to indicate
the pre-discharge warning condition (pulsing, 1s/1s), the release condition
(continuous) and the hold condition (pulsing, 1s/4s). Refer to Sections 3.3.2.1 and
3.3.2.2. Three pulsing patterns can be defined.
