Honeywell NOTIFIER NFW-50X Manual

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2 NFW-50X Manual — P/N LS10129-001NF-E:C 7/25/2018Fire Alarm & Emergency Communication System LimitationsWhile a life safety system may lower insurance rates, it is not a substitute for life and property insurance!An automatic fire alarm system—typically made up of smokedetectors, heat detectors, manual pull stations, audible warningdevices, and a fire alarm control panel (FACP) with remote notifica-tion capability—can provide early warning of a developing fire. Sucha system, however, does not assure protection against propertydamage or loss of life resulting from a fire.An emergency communication system—typically made up of anautomatic fire alarm system (as described above) and a life safetycommunication system that may include an autonomous controlunit (ACU), local operating console (LOC), voice communication,and other various interoperable communication methods—canbroadcast a mass notification message. Such a system, however,does not assure protection against property damage or loss of liferesulting from a fire or life safety event.The Manufacturer recommends that smoke and/or heat detectorsbe located throughout a protected premises following therecommendations of the current edition of the National FireProtection Association Standard 72 (NFPA 72), manufacturer'srecommendations, State and local codes, and therecommendations contained in the Guide for Proper Use of SystemSmoke Detectors, which is made available at no charge to allinstalling dealers. This document can be found at http://www.systemsensor.com/appguides/. A study by the FederalEmergency Management Agency (an agency of the United Statesgovernment) indicated that smoke detectors may not go off in asmany as 35% of all fires. While fire alarm systems are designed toprovide early warning against fire, they do not guarantee warning orprotection against fire. A fire alarm system may not provide timely oradequate warning, or simply may not function, for a variety ofreasons:Smoke detectors may not sense fire where smoke cannot reachthe detectors such as in chimneys, in or behind walls, on roofs, oron the other side of closed doors. Smoke detectors also may notsense a fire on another level or floor of a building. A second-floordetector, for example, may not sense a first-floor or basement fire.Particles of combustion or “smoke” from a developing fire maynot reach the sensing chambers of smoke detectors because:• Barriers such as closed or partially closed doors, walls, chim-neys, even wet or humid areas may inhibit particle or smokeflow.• Smoke particles may become “cold,” stratify, and not reach theceiling or upper walls where detectors are located.• Smoke particles may be blown away from detectors by air out-lets, such as air conditioning vents.• Smoke particles may be drawn into air returns before reachingthe detector.The amount of “smoke” present may be insufficient to alarm smokedetectors. Smoke detectors are designed to alarm at various levelsof smoke density. If such density levels are not created by a devel-oping fire at the location of detectors, the detectors will not go intoalarm.Smoke detectors, even when working properly, have sensing limita-tions. Detectors that have photoelectronic sensing chambers tendto detect smoldering fires better than flaming fires, which have littlevisible smoke. Detectors that have ionizing-type sensing chamberstend to detect fast-flaming fires better than smoldering fires.Because fires develop in different ways and are often unpredictablein their growth, neither type of detector is necessarily best and agiven type of detector may not provide adequate warning of a fire.Smoke detectors cannot be expected to provide adequate warningof fires caused by arson, children playing with matches (especiallyin bedrooms), smoking in bed, and violent explosions (caused byescaping gas, improper storage of flammable materials, etc.).Heat detectors do not sense particles of combustion and alarmonly when heat on their sensors increases at a predetermined rateor reaches a predetermined level. Rate-of-rise heat detectors maybe subject to reduced sensitivity over time. For this reason, the rate-of-rise feature of each detector should be tested at least once peryear by a qualified fire protection specialist. Heat detectors aredesigned to protect property, not life.IMPORTANT! Smoke detectors must be installed in the sameroom as the control panel and in rooms used by the system for theconnection of alarm transmission wiring, communications, signal-ing, and/or power. If detectors are not so located, a developing firemay damage the alarm system, compromising its ability to report afire.Audible warning devices such as bells, horns, strobes, speak-ers and displays may not alert people if these devices are locatedon the other side of closed or partly open doors or are located onanother floor of a building. Any warning device may fail to alert peo-ple with a disability or those who have recently consumed drugs,alcohol, or medication. Please note that:• An emergency communication system may take priority over afire alarm system in the event of a life safety emergency.• Voice messaging systems must be designed to meet intelligibilityrequirements as defined by NFPA, local codes, and AuthoritiesHaving Jurisdiction (AHJ).• Language and instructional requirements must be clearly dis-seminated on any local displays.• Strobes can, under certain circumstances, cause seizures inpeople with conditions such as epilepsy.• Studies have shown that certain people, even when they hear afire alarm signal, do not respond to or comprehend the meaningof the signal. Audible devices, such as horns and bells, can havedifferent tonal patterns and frequencies. It is the propertyowner's responsibility to conduct fire drills and other trainingexercises to make people aware of fire alarm signals andinstruct them on the proper reaction to alarm signals.• In rare instances, the sounding of a warning device can causetemporary or permanent hearing loss.A life safety system will not operate without any electrical power. IfAC power fails, the system will operate from standby batteries onlyfor a specified time and only if the batteries have been properlymaintained and replaced regularly.Equipment used in the system may not be technically compatiblewith the control panel. It is essential to use only equipment listed forservice with your control panel.Telephone lines needed to transmit alarm signals from a premisesto a central monitoring station may be out of service or temporarilydisabled. For added protection against telephone line failure,backup radio transmission systems are recommended.The most common cause of life safety system malfunction is inad-equate maintenance. To keep the entire life safety system in excel-lent working order, ongoing maintenance is required per themanufacturer's recommendations, and UL and NFPA standards. Ata minimum, the requirements of NFPA 72 shall be followed. Envi-ronments with large amounts of dust, dirt, or high air velocity requiremore frequent maintenance. A maintenance agreement should bearranged through the local manufacturer's representative. Mainte-nance should be scheduled as required by National and/or local firecodes and should be performed by authorized professional lifesafety system installers only. Adequate written records of all inspec-tions should be kept.Limit-D2-2016