Polon-Alfa ADR-20N Manual

ADR‐20N
SELF‐CONTAINEDOPTICAL
SMOKEDETECTOR
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InstallationandMaintenanceManual
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IK‐E289‐003GB
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Issue1A
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IK-E322-001GB 2
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TheADR‐20Nresidentialself‐containedopticalsmokedetectorcoveredbythismanual,complieswith
therequirementsofthefollowingEuropeanUniondirectives:
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CPD 89/106/EWG ‐onconstructionmaterials;
EMC 2004/108/WE ‐onelectromagneticcompatibility.
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TheADR‐20NopticalsmokedetectorhasbeenapprovedwiththeECCertificateofConformityNo.
1438/CPD/0145,issuedbytheScientificandResearchCentreforFireProtection(CNBOP)Józefów,
Poland,aEUnotifiedauthorityNo.1438,confirmingitscompliancewiththerequirementsofPN‐EN
14604:2006standard.
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Thecertificatecanbedownloadformwww.polon‐alfa.plwebsite.
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1438
Polon‐AlfaSpółkazograniczonąodpowiedzialnościąSp.k.
155,GlinkiStreet,PL85‐861Bydgoszcz,POLAND
08
1438/CPD/0145
EN14604
ADR‐20NSelf‐containedSmokeDetector
Application–firesecurity
Technicaldata‐IK‐E289‐003GBmanual
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Readthemanualcarefullybeforeassemblingandoperationofthedetector.
Anynonconformitywiththeinstructionscontainedinthemanualmaybeharmfulormaycause
violationofthelawinforce
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POLON‐ALFAshallnotbearresponsibilityforanyharmsresultedfromtheunitapplicationdiscordantly
totherequirementsofthisinstruction.
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AccordingtotheEuropeanUnionregulationsitisforbiddentodisposethewasteequipment
markedwiththesignofacrossedcontainer(asshownbeside)toindustrialscrap‐heap.Any
wasteproduct,unsuitableforfurtheruse,shallbepassedtoawasteelectricandelectronic
equipmentcollectionpoint.Deliveringthewasteequipmenttospecialcollectionpointsfor
utilizationandrecyclingreducesanadverseimpactofharmfulcomponentsusedinthedevice
productionuponenvironmentandhumanhealth.
TheADR‐20Ndetectormass(withoutabattery):0.125kg
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NOTE:Themanufacturerreservestherighttochangespecificationsofproductsatanytime
withoutpriornotice

IK-E322-001GB 3
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1PURPOSE
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TheADR‐20Nopticalsmokedetectorisdesignedfordetectionofavisiblesmokethatisconcurrentwith
mostfirecombustion.Itisdedicatedtomonitorresidentialfacilities,cellars,garages,attics,etc.The
detectorisbattery‐operatedusingareplaceable9V6F22batterymountedinsideitscasing.
Itispossibletointer‐connectdetectorswithatwo‐corecablecreatingadetectingnetwork–detection
ofafirebyonedetectoractivatesanalarmsignalinotherdetectorsinthesupervisedpremises.
2TECHNICALSPECIFICATIONS
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Powersupply9V6F22battery(notincluded)
Quiescentcurrent<10µA
Operationtemperaturerangefrom‐10oCto+55oC
Relativehumidity≤95%at40oC
Detectormass(withoutbattery)≤0.13kg
Dimensions(withbase)Ø112x57mm
Sensitivitytotestaerosol
acc.toPN‐EN14604:2006standardm=0.20÷0.38
Audioalarmvolume>85dBat3‐mdistance
Batteryoperationlife 1‐3years(dependingontype)
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3SAFETYCONDITIONS
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3.1Repairsandmaintenance
Anyrepairmustbecarriedoutbythemanufacturer.
POLON‐ALFAbearsnoresponsibilityfortheoperationofanyapparatusbeingservicedandrepairedby
unauthorisedpersonnel.
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3.2Worksatheight
Anydetectorinstallationworkscarriedoutatheightmustbeexecutedwithparticularcareutilisingtools
andmachineryingoodworkingcondition.
Specialattentionshallbegiventothestabilityofladders,platforms,etc.
Anyelectrictoolshallbeusedstrictlyobeyingthesafetyrulesspecifiedinthemanufacturerinstruction
manuals.
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3.3Anti‐dustingeyeprotection
Itisobligatorytouseprotectiveanti‐dustingglassesandmasksduringdetectorinstallationworksthat
producehighamountofdust,suchasholedrillingfordetectorbasemountingonceilings.
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4GENERALDESCRIPTIONS
TheADR‐20Nsmokedetectorconsistsofthefollowingmainparts:base(1),bottom(9)withan
electroniccircuitandalabyrinthandacasing(6).Anopticalassemblyandanacousticsignallingdevice

IK-E322-001GB 4
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areinstalledinsidethebottom.Thecasingenclosesawiregridthatpreventsirruptionofsmallinsectsor
piecesofdirt.
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Fig.1
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Thebottomisfixedtothecasingwithtwoscrews(10).Twosmalldevicesprotrudefromthecasing:a
testbutton(4)andanilluminatingLED(8)thatindicatesthedetectormode.Fragmentsofaprinted

IK-E322-001GB 5
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circuitboard(PCB)withcontactpinsarevisiblefromthebottomside.Thesecontactpinsholda
connector(11)tointerconnectseveraldetectorsinanetwork.
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5INSTALLATION
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Thedetectorsarerecommendedtobeinstalledinallroomsexposedtoahighfirehazardlevel.They
maybemountedinhallways,staircasesaswellasinpassagesbetweenroomsendangeredbyafire
occurrence.
Itisrecommendedtoinstallthedetectoronceilings,leavingatleast20cmofunobstructedspacefrom
wallsorotherelementsthatmayhamperfreesmokeaccesstothedetector.
Twoholes(with72‐mmspacing)shouldbedrilledinordertoinstallextensionanchorboltsfixingthe
detectortotheceiling.
Incasethedetectorsareintendedtoworkinanetwork,theyshouldbelinked–alldetectorGND
clampsmustbeinterconnected;thesameconcernstheI/Oclamps.
Whencablesareledunderthewallplaster(semi‐flushmounting),thebaseshouldbedrilledinits
centre;incaseofon‐plastercableleading(surfacemounting),theholeshouldbedrilledinthebaseside
wall(suggestedholelocationsareshownonFig.1)leavingtheminimumdistancefromthebottom.The
cablesshouldbeplacedintotheholesandthenthebaseshouldbefixedintheplaceintendedfor
installation.ThedetectorsmaybeinterconnectedusingatypicaltelecommunicationPVCinsulated
cableof0.12–0.5mm2crosssection(0.4–0.9mmdiameter).Twowiresmaybeconnectedtoone
contact(wireandresistorendings).Itisallowedtousedifferentsizewires(within0.4–0.9mmrange)
inonecontact.Theminimumlengthofthewireprotrudingfromthebaseis5cm.Bare(un‐insulated)
endsofwires(atleast8mmlong)shouldbepushedintheconnectortakenoutfromthebaseasitis
shownonFig.2.Theclampsoftheconnectorwillclenchthewiresautomatically.
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Fig.2
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Aremovalofawirefromtheconnectorispossibleafterpressingdownanorangeblockingpush‐button
withafingernail.Theconnectorwiththewiresshouldbepushedonthecontactpinsprotrudingfrom
thedetector.Thebatteryshouldbeconnectedandinsertedsothattheredblockingplatepullsback
accordingtotheFigure3.Thedetectoroperationshouldbecheckedbypressingdownthetestpush
buttonforfewseconds.ThetestresultispositivewhenaLEDflashesseveraltimesandsubsequentlyan
acousticsignalisheard.Theinspecteddetectorcanbeinstalledinthebaseturningitclockwiseuntilthe
catchessnap.

IK-E322-001GB 6
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Fig.3
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6PRINCIPLESOFOPERATION
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Thedetectormonitoringactivitybeginswhenabatterypowersupplyisconnected.Aninformation
aboutthedetectormodeiscommunicatedbyacousticandopticalsignalsasperthefollowingtable:

DetectormodeModulated
audiosignal
LED
flashing
Shortaudio
signal
40sinterval
LEDflashing
40sinterval
Supervision,
smokedetectionx
Alarm
aftersmokedetectionxx 
Low
powersupplyvoltagexx
Detectortesting
withtheTESTbuttonxx 
Faultx
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Incaseafactorthatcausesaparticularmodedecays,thedetectorautomaticallyreturnstoits
supervisionmode.
Dependingonthetypeofabatteryused,thedetectoroperationperiodmayvary:
‐ordinarybatteries–min.1year;thedetectorwillworknormallyforatleast30dayssincethe
firstlowbatterysignalhasbeentransmitted
‐alkalinebatteries–min.2years;lowbatterysignalformin.30days
‐lithiumbatteries–min.3years;lowbatterysignalformin.60days.
Frequentdetectortestsanditsactivationinspectionswillresultintheoperationperiodshortening.
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IK-E322-001GB 7
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7MAINTENANCEINSTRUCTIONS
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Incaseofdustaccumulationinsidethemeasuringchamber,whichmaybearesultofalong‐term
device,thedetectorsensitivitylevelwillincreaseuptoevokingfalsealarms.Itisrecommendedtoclean
theopticalmodule(i.e.thelabyrinthandlensesofbothtransmittingdiodeandreceivingphotodiode
whichareplacedwithinthelabyrinth)everyyear.
Inordertocarrythecleaningprocessout,itisnecessary:
−removethedetectorfromitsbaseturningitcounterclockwiseandtakingitoff;
−disconnecttheconnector(11);
−removetwoscrews(10)fasteningthebottom(9)tothecasing(6)ofthedetector;
−takethecasingoff;
−bendsoftlythecatchesthatholdthelabyrinth(5)andtakeitout;
−usingsoftbrushcleancarefullythelabyrinth,thehollowswherethediodesareplacedaswellas
themetalcoverfromthesideofthelabyrinth;
−incasesuchcleaningisnoteffective,itisallowedtowashthelabyrinthwithwarmwaterwith
anadditionofwashing‐upliquid;
−aftercleaninganddryingnowaterstainmaybeleftonthelabyrinthinternalsurfaces.
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Aftercleaningreassemblethedetectorinthefollowingorder:
−checkwhetherthemetalcoverdoesnotconcealtheacousticsignallingdeviceopening;
−pressthelabyrinthdownuntilitscatchessnap;inthispositiontheprintedcircuitboardshould
closelyadherethebottomedges,thelabyrinthshouldbetightlyfastenedinuprightposition
(withnobending);
−placethemoduleintothecasingsothattheLEDandthetestingbuttonpokeoutabovethe
casingsurface;
−fastenthemoduletothecasingwithtwoscrews;
−connectabatteryandcheckthedetectoroperation;
−installthedetectorinsidethebase.
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8NOTES
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Asupplyingbatteryisnotincludedinastandarddetectorpackage–itshouldbeorderedseparately.

TheADR‐20Ndetectorsdonotcontainanyradioactivematerial.
Itshouldbeavoidedtoinstallthedetectorsindraughtyplaces.
Theyshouldnotbemountedabovestoves,kettlesandsimilarplaceswheresmokeorwatervapour
mayoccur.
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IK‐E289‐003GB/10.2008/12.2011