Kentec Electronics Sigma XT Plus Operation And Maintenance Manual

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Kentec Electronics Sigma XT Plus Operation And Maintenance Manual Manual pdf 4 page image

Man-1111_SigmaXT+_Coincidence_Unit_18 Page 4 of 361. IntroductionThe SIGMA XT+ Extinguishant Coincidence Unit is designed in accordance with European standard EN12094-1 Fixedfirefighting systems - Components for gas extinguishing systems - Part 1: Requirements and test methods forelectrical automatic control and delay devices.The Sigma XT+ ECU is a self contained extinguishant release control unit that can receive activation signals atsupervised inputs via volt free contacts from other fire detection control panels or from addressable output modules.It may also be connected to a Sigma CP fire panel serial bus and receive activation signals via this serial link.ECUs have an integral, mains powered, EN54-4 compliant battery charger and power supply.In addition to the requirements of EN12094-1 the ECU has the following facilities:Delay of extinguishing signal of up to 60 seconds. EN12094-1 Section 4.17: (option with requirements).Signal representing the flow of extinguishing agent to indicate the released condition. EN12094-1 Section 4.18:(option with requirements).Monitoring of the status of components by way of a low pressure switch input. EN12094-1 Section 4.19 : (option withrequirements).Emergency hold device to enable the extinguishant delay time to be extended. EN12094-1 Section 4.20: (option withrequirements).Control of flooding time to deactivate the releasing output after a set period of time. EN12094-1 Section 4.21:(option with requirements).Manual only mode to disable the release of extinguishant via automatic detection devices. EN12094-1 Section 4.23:(option with requirements).Triggering of equipment outside the system by way of first and second stage contacts, extract fan output etc.EN12094-1 Section 4.26: (option with requirements).Activation of alarm devices with different signals to indicate pre- discharge and released warnings using differentsounds. EN12094-1 Section 4.30: (option with requirements).Emergency Abort device to inhibit the extinguishing signal until the emergency abort device has been de-activatedand the panel has been reset. EN12094-1 Section 4.27: (option with requirement).2. SafetySuppliers of articles for use at work are required under section 6 of the Health and Safety at Work act 1974 to ensureas reasonably as is practical that the article will be safe and without risk to health when properly used.An article is not regarded as properly used if it is used ‘without regard to any relevant information or advice’ relatingto its use made available by the supplier.This product should be installed, commissioned and maintained by trained service personnel in accordance with thefollowing:(i) IEE regulations for electrical equipment in buildings(ii) Codes of practice(iii) Statutory requirements(iv) Any instructions specifically advised by the manufacturerAccording to the provisions of the Act you are therefore requested to take such steps as are necessary to ensure thatyou make any appropriate information about this product available to anyone concerned with its use.This equipment is designed to operate from 230V 50Hz mains supplies and is of class 1 construction. As such itmust be connected to a protective earthing conductor in the fixed wiring of the installation and a readily accessibledouble pole disconnect device meeting the requirements of EN60950/IEC950 which disconnects live and neutralsimultaneously shall be incorporated in the fixed wiring.Switch disconnect devices such as MK Sentry 63A or similar are suitable for this.Failure to ensure that all conductive accessible parts of this equipment are adequately bonded to theprotective earth will render the equipment unsafe.This control panel is environmental class A and is designed for indoor use only at temperatures between -50 C (+/- 3)and +40 0 C (+/- 2) and with a maximum relative humidity of 95%.The IP rating for the enclosure is IP30.