Man-1452EN Rev.02
Sigma ZXT Operation Manual
Compliance
Sigma ZXT is compliant with the following standards:
EN54-2 and EN54-4 Fire Detection and Fire Alarm Systems - Control and Indicating Equipment
In addition to the standard EN54-2 requirements the following options with requirements have been includ-
ed in the Control Panel:
Output to alarm devices to enable an audible warning to be sounded throughout the premises upon the detection of
a fire condition or the operation of a manual call point. EN54-2 Section 7.8.
Test condition to allow the automatic resetting of zones in alarm for testing purposes. EN54-2 Section 10.
Delay of the actioning of fire alarm devices (sounders) so that an alarm may be verified before a premise is evacu-
ated. EN54-2 Section 7.11
In addition to the requirements of EN54-2, Sigma ZXT Control Panels have a voltage free relay contact for fire which
operates upon a fire condition. This is to be used for local control and signalling.
EN12094-1 Fixed fire-fighting systems - Components for gas extinguishing systems - Part 1: Requirements and test
methods for electrical automatic control and delay devices.
In addition to the standard EN12094-1 requirements the following options with requirements have been in-
cluded in the Control Panel:
Delay of extinguishing signal of up to 60 seconds. EN12094-1 Section 4.17.
Signal representing the flow of extinguishing agent to indicate the released condition. EN12094-1 Section 4.18.
Monitoring of the status of components by way of a low pressure switch input. EN12094-1 Section 4.19.
Emergency hold device to enable the extinguishant delay time to be extended. EN12094-1 Section 4.20.
Control of flooding time to deactivate the releasing output after a set period of time. EN12094-1 Section 4.21.
Manual only mode to disable the release of extinguishant via automatic detection devices.EN12094-1
Section 4.23.
Extinguishing signals to spare cylinders enables the switching to a spare set of cylinders following a discharge to
return the system to a functional state. EN12094-1 Section 4.25.
Emergency Abort device to inhibit the extinguishing signal until the emergency abort device has been de-activated
and the Panel has been reset. EN12094-1 Section 4.27.
Activation of alarm devices with different signals to indicate pre-discharge and released warnings using different
sounds. EN12094-1 Section 4.30.
Default panel settings provide EN54-2 compliance:
BUZZER O/P: Enabled/Disabled This must be set to ENABLED.
MAINS FLT RLY DLY: OFF/30m This must be set to OFF.
FAULT RELAY: ENABLED/DISABLED This must be set to ENABLED.
FIRE RELAY: ENABLED/DISABLED. This must be set to ENABLED.
EARTH FAULT: ENABLED/DISABLED This must be set to ENABLED.
Important! Any deviation from these settings and compliance EN54-2 is void.
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