D200-39-00 1 I56-1977-004R

3825OhioAvenue,St.Charles,Illinois60174800/736-7672,FAX:630-377-6495

www.systemsensor.com

Before installingdetectors, please thoroughly read theNEMAGuide for

Proper Use of Smoke Detectors in Duct Applications, which provides

detailed information on detector spacing, placement, zoning, wiring,

and special applications. Copies of this manual are available from

NEMA(NationalElectricalManufacturersAssociation,2101LStreetNW,

Washington,DC20037).NFPAStandards72and90Ashouldalsoberef-

erencedfordetailedinformation.

NOTICE:Thismanualshallbeleftwiththeowner/userofthis

equipment.

IMPORTANT: Thisdetectormustbetestedandmaintainedregularlyfol-

lowing NFPA 72 requirements. The detector should be cleaned at least

onceayear.

General Description

An HVAC system supplies conditioned air to virtually every area of

a building. Smoke introduced into this air duct system is distrib-

uted to the entire building. Smoke detectors designed for use in air

duct systems are used to sense the presence of smoke in the duct.

Contents of the Duct Smoke Detector Housing KitTheDH200RPLDuctSmokeDetectorconsistsofthefollowingitems

(SeeFigure1.):

Figure 1. Exploded View Of Duct Smoke Detector Components:

NOTE: Forductsover11⁄2feet(0.46m),longersamplingtubesmustbeorderedtocompletetheinstallation.Theymustbethecorrectlengthforthe

widthoftheductwheretheywillbeinstalled.SeeTable1onpage3todeterminethesamplingtuberequiredfordifferentductwidths.

Contents Of The Duct Smoke Detector1. Completeductsmokedetectorassemblywith

sensor

2. Two#10x11⁄4″sheetmetalmountingscrews

3. Twosamplingtubefilters

4. Onetestmagnet

5. Drillingtemplate

6. Twofoamgaskets

7. Four#6-selftappingmountingscrewsforthe

samplingtubeandoptionalexhausttube

extension

8. Onesamplingtubeendcap

9. Oneplasticsamplingtube

10. One#8self-tappingscrewforplasticsampling

tube

NOTE: A detector sensor board DOES NOT need to

be ordered separately.

INSTALLATION AND MAINTENANCE INSTRUCTIONS

The DH200RPL air duct smoke detector is photoelectric detector. This

smokedetectionmethodcombineswithanefficienthousingdesignthat

samplesairpassingthroughaductandallowsdetectionofadeveloping

hazardouscondition.Whensufficientsmokeissensed,analarmsignalis

initiatedatthefirecontrolpanelmonitoringthedetector,andappropriate

actioncanbetakentoshutofffans,blowersandchangeoverairhandling

systems,etc.Thiscanpreventthedistributionoritcanisolatetoxicsmoke

andfiregasesthroughouttheareasservedbytheductsystem.

TwoLEDsoneachdetectormayilluminate,ifprogrammedbythesystem

controlpanel,toprovidealocalalarmindication.Thereisalsoaremote

alarmoutputforusewithauxiliarydevices.TheDH200RPLhasremote

testcapabilitywiththeRTS451/RTS451KEYRemoteTestStation.

TheDH200RPL incorporatesacover tamper feature.When thecover is

removedformorethan20minutes,theunitlosescommunicationatthe

panel, a trouble is indicated at the panel and the alarm relay switches

states thereby shutting down fans, dampers and blowers. In the case

whenthesensorisremovedorwhenthereisnopowertotheunit,onlya

troubleisindicatedatthepanel(alarmrelaydoesnotworkanylonger).

DH200RPL Intelligent Air Duct Smoke Detectorwith Extended Air Speed Range

FOAMGASKETS

SAMPLING TUBE

SAMPLING TUBEFILTERS

DETECTORCOVER

DETECTOR BOARD

CONDUIT HOLES

DETECTORHOUSING

TERMINAL STRIP

POWER BOARD

COVER MOUNTINGSCREWS

Current Requirements (using no accessories)

Powersupplyvoltage: 20-30VDC 24VAC,50-60Hz 120VAC,50-60Hz 220/240VAC,50-60Hz

Max.standbycurrent: 26mA 65mARMS 44mARMS 25mARMS

Max.alarmcurrent: 87mA 182mARMS 52mARMS 30mARMS

Alarmresponsetime: 3to10Sec. 3to10Sec. 3to10Sec. 3to10Sec.

Poweruptime: 2Sec. 2Sec. 2Sec. 2Sec.

Accessory Current Loads at 24 VDC

Device Standby Alarm

PA400 0mA 15mAMax.

RA400Z 0mA 12mAMax.

RTS451/RTS451KEY 0mA 10mAMax.

Contact Ratings

Alarmauxiliarycontacts*(DPDT) 10A@30VDC

10A@277VAC(.75powerfactor)

240VA@249VAC(0.4powerfactor)

1/8HP@120VAC

1/4HP@240VAC

Supervisorycontact(SPST) 2.0A@30VDC(resistive)

*Minimumswitchingcurrentforauxiliarycontactmustbe100mADCminimum@5VDC.

Accessories Part No.

RemoteLED RA400Z

MagneticRemoteTest RTS451

Key-ActivatedRemoteTest RTS451KEY

ReplacementFilters F36-09-11

ReplacementTestMagnet M02-04-00

Programming Specifications/Requirements for Intelligent System

Control Panels

There are a limited number of devices that can have their LEDs pro-

grammed to illuminate. The actual number of devices is determined

Accessories Part No.

ReplacementPhotoInsectScreen S08-39-01

ReplacementEndCapforPlasticSamplingTube P48-61-00

ReplacementEndCapforMetalSamplingTubes P48-21-00

ReplacementPhotoelectricSensorBoard A5053

ReplacementPowerBoard(w/relay) A5060

by the control panel and its ability to supply LED current.

Refer to the Control Panel Installation Manual for details.

D200-39-00 8 I56-1977-004R©2004SystemSensor

FCC StatementThisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions:(1)Thisdevicemaynotcauseharmfulinter-ference,and(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation.Note: Thisequipmenthasbeentestedandfoundtocomplywith the limits foraClassBdigitaldevice,pursuant toPart15of theFCCRules.These

limitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidentialinstallation.Thisequipmentgenerates,usesandcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterferencetoradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticularinstallation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedeterminedbyturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyoneormoreofthefollowingmeasures:

–Reorientorrelocatethereceivingantenna. –Increasetheseparationbetweentheequipmentandreceiver. –Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected. –Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

SystemSensorwarrantsitsenclosedairductsmokedetectortobefreefromdefectsinmaterialsandworkmanshipundernormaluseandserviceforaperiodofthreeyears fromdateofmanufacture. SystemSensormakesnoother expresswarrantyforthisairductsmokedetector.Noagent,representative,dealer,oremployeeoftheCompanyhastheauthoritytoincreaseoraltertheobligationsorlimitationsofthisWarranty.TheCompany’sobligationofthisWarrantyshallbelimitedtotherepairorreplacementofanypartoftheairductsmokedetectorwhichisfoundtobedefectiveinmaterialsorworkmanshipundernormaluseandserviceduring the threeyearperiodcommencingwith thedateofmanufacture.AfterphoningSystemSensor’stollfreenumber800-SENSOR2(736-7672)foraReturnAuthorizationnumber,senddefectiveunitspostageprepaidto:SystemSensor,ReturnsDepartment,RA#__________,3825OhioAvenue,St.Charles,IL60174.Pleaseincludeanotedescribingthemalfunctionandsuspectedcauseoffailure.TheCompanyshallnotbeobligatedtorepairorreplaceunitswhicharefoundtobedefectivebecauseofdamage,unrea-sonableuse,modifications,oralterationsoccurringafter thedateofmanufacture.

Please refer to insert for the Limitations of Fire Alarm SystemsThree-Year Limited Warranty

InnocaseshalltheCompanybeliableforanyconsequentialorincidentaldamagesforbreachofthisoranyotherWarranty,expressedorimpliedwhatsoever,evenifthelossordamageiscausedbytheCompany’snegligenceorfault.Somestatesdonotallowtheexclusionorlimitationofincidentalorconsequentialdamages,sotheabovelimitationorexclusionmaynotapplytoyou.ThisWarrantygivesyouspecificlegalrights,andyoumayalsohaveotherrightswhichvaryfromstatetostate.Tokeepyourequipmentinexcellentworkingorder,ongoingmaintenanceisrequiredper themanufacturer’s recommendationsandULandNFPAstandards.Atamini-mum,therequirementsofChapter7ofNFPA72,theNationalFireAlarmCode,shallbe followed. A preventative maintenance agreement should be arranged throughthe localmanufacturer’s representative.Though smokedetectors are designed forlonglife, theymayfailatanytime.Anysmokedetector, firealarmequipment,oranycomponentofthatsystemwhichfailsshallberepairedorreplacedassoonaspossible.

I56-1977-004R

1. Removethefrontcover.

2. Slidetheplasticsamplingtubeintothehousingbushing.

3. Aligntheholesinthebushingwiththeholesinthesamplingtube.Make

surethereare6exposedholesontheplasticsamplingtube.Securewiththe

#8self-tappingscrewintothebottomofthepermanenttube(showninFig.

2).

NOTE: Forductsgreater than11⁄2 feet(0.46m)inwidth,refer tosec-

tions[4],[4.1]and[4.2].

[3] Secure The Detector Housing To The Duct

SlidethefoamgasketsoverthetubebushingsasshowninFigure3.Use

thetwo11⁄4″ longsheetmetalscrewstoscrewthedetectorhousingto

theduct.

CAUTION: Do not overtighten the screws.

[4] Sampling Tube Installation for Ducts Greater Than 11⁄2 Feet

(0.46m) Wide

Thesamplingtubeisidentifiedbyaseriesofairinletholesonthetube.

Aplastictubeisincludedforductsupto11⁄2feet(0.46m)wide.Allother

lengthsmustbepurchasedseparately.Orderthecorrectlength,asspeci-

fiedinTable1,forwidthoftheductwhereitwillbeinstalled.Itisrecom-

mendedthatthesamplingtubelengthextendatleast2⁄3acrosstheduct

widthforoptimalperformance.Theexhausttubeismoldedontothebase

oftheducthousing,andtheA2440-00ExhaustTubeExtensionisavailable

asanaccessoryinthosecaseswherethemoldedexhaustportdoesnot

extendatleast2inches(50mm)intotheduct.

Thesamplingtubeisalwaysinstalledwiththeairinletholesfacinginto

theair flow.Toassistproper installation, the tube’smounting flange is

markedwithanarrow.Makesurethesamplingtubeismountedsothat

the arrow points into the air flow (see Figure 4). Figure 5 shows the

variouscombinationsoftubemountingconfigurationswithrespecttoair

flow.Mountingthedetectorhousinginaverticalorientationisacceptable,

providedthatametalsamplingtubeisinstalledandtheairflowsdirectly

intothesamplingtubeholesasindicatedinFigure4.

Limitations of Duct Detectors

The National Fire Protection Association has established that DUCT

DETECTORSMUSTNOTBEUSEDASASUBSTITUTEFOROPENAREA

DETECTORPROTECTIONasameansofprovidinglifesafety.Norarethey

asubstituteforearlywarninginabuilding’sregularfiredetectionsystem.

It isstronglyrecommendedthattheuserreadNFPAStandards90A,72,

and101.

WARNING

This device will not operate without electrical power. Fire situations

may cause an interruption of power. The system safeguards should be

discussedwithyourlocalfireprotectionspecialist.

WARNING

Thisdevicewillnotsensesmokeunlesstheventilationsystemisoperat-

ing.

WARNING

Inordertofunctionproperly,thisdetectormustbeinstalledaccordingto

theinstructions.Donotexceedtheelectricalorambientspecificationsor

the detector will not function properly. This detector must be protected

fromtheelements.

Installation Sequence

Step1. Verifyductairflowdirectionandvelocity...........................2

Step2. Drillthemountingholes.....................................................2

Step2.1 Installthesamplingtubeforducts

lessthan11⁄2 feet(0.46m)wide...........................................2

Step3. Securethedetectorhousingtotheduct...............................2

Step4. Installthesamplingtubeforducts

greaterthan11⁄2 feet(0.46m)wide......................................2

Step4.1 Installationforductsgreaterthan11⁄2feet

(0.46m)butlessthan8feet(2.4m)wide............................3

Step4.2 Installationforductsmorethan8 feet

(2.4m)wide.......................................................................4

Step5. Installthefilters.................................................................4

Step6. Fieldwiring.......................................................................4

Step7. Performdetectorcheck.......................................................5

Step8. Installthecover.................................................................5

Step9. DetectorMaintenanceandTestProcedures..........................5

[1] Verify Duct Air Flow Direction And Velocity

TheDH200RPLduct smokedetector isdesigned tobeused in airhan-

dlingsystemshavingairvelocitiesof100to4000feetperminute(0.5to

20.32m/s).Besuretocheckengineeringspecificationstoensurethatthe

airvelocityintheductfallswithintheseparameters.Ifnecessary,usea

velocitymeter to check the air velocity in theduct. SeeAir FlowTest,

section9.1.

[2] Drill The Mounting Holes

Remove the paper backing from the mounting template

supplied.Affixthetemplatetotheductatthedesiredmountinglocation.

Makesure the template lies flatandsmoothontheduct.Centerpunch

holesAandB.Drilltheholesasindicatedonthetemplate.

[2.1] Sampling Tube Installation for Ducts Less Than 11⁄2 Feet

(0.46m) Wide (see Figure 2)

Figure 2. Plastic sampling tube connected to duct smoke detector:

D200-39-00 2 I56-1977-004R

WARNING

[4.1] Installation For Ducts Greater Than 11⁄2 Feet (0.46m) But

Less Than 8 Feet (2.4m) Wide

1. If the tube is longer than the width of the air duct,drilla3⁄4″(19mm)

holeintheductoppositetheholealreadycutforthesamplingtube.

Makesuretheholeis1″to2″(25to50mm)belowtheinletholeon

theoppositesideoftheducttoallowmoisturedrainageawayfromthe

detector.If the tube is shorter than the width of the air duct,installthe

endcapintothesamplingtubeasshowninFigure4.Samplingtubes

over3ft.(0.91m)longmustbesupportedattheendoppositetheduct

smokedetector.

D200-39-00 7 I56-1977-004R

[9.2.2.2] RTS451/RTS451KEY Remote Station Test

TheRTS451/RTS451KEYRemoteTestStationfacilitatestestofthealarm

capability of the duct smoke detector. These accessories provide the

stimulus to initiate analarmconditionat thedetector. Thedetector is

self-restoringwhentheaccessoryteststimulusisremoved.Verifythatthe

systemcontrolpanelhasreset;panelmayneedtobereset.

[9.2.3] Sensitivity Tests

Notifytheproperauthoritiesthatthesmokedetectorsystemisundergo-

ingmaintenance,andthatthesystemwilltemporarilybeoutofservice.

Disablethedeviceorsystemundergoingmaintenancetopreventunwant-

edalarmsandpossibledispatchofthefiredepartment.

[9.3] Maintenance of Duct Smoke Detectors [9.3.1] Air Filters

1. Turnoffpowertothesystem.

2. Removeandinspectsamplingtubefilters.

3. If filters are heavily coated with dirt, replace them with new filters

(p/nF36-09-11).Iftheyarenotheavilycoated,useavacuumcleaner

orcompressedairnozzletoremovedust,thenreinstallthefilters.

[9.3.2] Photo Detector Boards

1. Removethescreenbygentlygraspingoneachsideandpullingstraight

off

2. Lift the photo chamber in the same fashion. Vacuum the screen and

cover.Useclean,compressedairtoloosenandblowoutanyremaining

debris.Replacementscreens(p/nS08-39-01)areavailable.

3. Vacuum photo chamber, then use clean compressed air to blow area

clean.

4. Replacethechamberbypressingitontothebase.Pressthescreeninto

place.Itshouldfittightlyonthechamber.

[10] Board Replacement

[10.1] Sensor Board Replacement

1. Removethetwosensorboardmountingscrews.

2. Pullgentlyontheboardtoremoveit.

3. Toreplacetheboard,aligntheboardmountingfeatures,holes,andthe

interconnectterminals.Pushtheboardintoplace.

4. Secureboardwiththetwomountingscrews.

[10.2] Power Board Replacement

1. Disconnectwiringfromtheterminalblock.

2. Removethetwopowerboardmountingscrews.

3. Pullgentlyontheboardtoremoveit.

4. Toreplacetheboard,aligntheboardmountingfeatures,holes,andthe

interconnectterminals.Pushtheboardintoplace.

5. Secureboardwiththetwomountingscrews.

6. Re-connectwiringtoterminalblock.

[11] Model DH200RPL Air Duct Smoke Detector Specifications

OperatingTemperatureRange 32°to131°F(0°to55°C)

StorageTemperatureRange -22ºto158ºF(-30ºto70ºC)

HumidityRange 10%to93%(non-condensing)

AirVelocity 100to4000ft/min(0.5to20.32m/sec.)

Dimensions 143⁄8″Lx51⁄2″Wx23⁄4″D(37cmLx

14cmWx7cmD)

D200-39-00 3 I56-1977-004R

SCREW HOLES FORATTACHING HOUSINGTO DUCT WORK.

Figure 3. Installation of foam gaskets over sampling tube bushings:

Figure 5. Tube mounting configurations with varying air flow direction:

Table 1. Sampling tubes recommended for different duct widths: Outside Duct Width Sampling Tube Recommended*

1to2ft.(0.3to0.6m) ST-1.5

2to4ft.(0.6to1.2m) ST-3

4to8ft.(1.2to2.4m) ST-5

8to12ft.(2.4to3.7m) ST-10

*Mustextendaminimumof2⁄3theductwidth

SAMPLINGTUBEEND CAP

AIR HOLES

ARROWMUST FACE

INTO AIR FLOWAIR FLOW DIRECTION

FLANGE

Figure 4. Air duct detector sampling tube:

H0108-02

AIR FLOWDIRECTION

DETECTORHOUSING

DOTS INDICATE POSITION OFSAMPLING TUBE HOLES

AIR FLOWDIRECTION

DETECTORHOUSING

SAMPLINGTUBE

EXHAUSTTUBE

AIR FLOWDIRECTION

EXHAUSTTUBE

SAMPLINGTUBE

SAMPLINGTUBE

EXHAUSTTUBE

DETECTORHOUSING

AIR FLOWDIRECTION

DETECTORHOUSING

A. B.

C. D.

HORIZONTAL MOUNTING OF HOUSING

VERTICAL MOUNTING OF HOUSING

NOTE: Only metal sampling tubes can be installed in orientations C and D.

[4.2] Installation For Ducts More Than 8 Feet (2.4m) Wide

NOTE: Toinstallsamplingtubesinductsmorethan8feet(2.4m)wide,

workmustbeperformedinsidetheairduct.Samplingofairin

ductswider than 8 feet (2.4m) is accomplished byusing the

ST-10samplingtube.Ifthetubeisshorterthanthewidthofthe

airduct, install theendcap into thesampling tubeasshown

inFigure4andsupporttheendoppositetheductsmokedetec-

tor.

Install the sampling tube as follows:

1. Drill a 3⁄4-inch (19mm) hole in the duct directly opposite the hole

alreadydrilledforthesamplingtube.Makesurethehole is1″ to2″

(25to50mm)belowtheinletholeontheoppositesideoftheductto

allowformoisturedrainage.

2. Slidethesamplingtubewiththeflangeintothehousingbushingthat

meetstheairflowfirst.Positionthetubesothatthearrowpointsinto

theairflow.Securethetubeflangetothehousingbushingwithtwo

#6self-tappingscrews.

3. Frominsidetheduct,coupletheothersectionsofthesamplingtube

tothesectionalreadyinstalledusingthe1⁄2-inchconduitfittingssup-

plied.Makesurethattheholesonbothofthesamplingtubesarelined

upandfacingintotheairflow.

4. Trimtheendofthetubeprotrudingthroughtheductsothat1″to2″

(25to50mm)ofthetubeextendoutsidetheduct.Plugthisendwith

theendcapandtapeclosedanyholesintheprotrudingsectionofthe

tube.Besuretosealtheductwherethetubeprotrudes.

NOTE: AnalternatemethodtousingtheST-10istousetwoST-5sam-

plingtubes.Removetheflangefromoneofthetubesandinstall

asdescribedabove.Aftertheinstallation,useelectricaltapeto

closeoffsomeofthesamplingholessothatthereareatotalof

10to12holesspacedasevenlyaspossibleacrossthewidthof

theduct.

2. Slidethetubeintothehousingbushingthatmeetstheairflowfirst.

Positionthetubesothatthearrowpointsintotheairflow,asshown

inFigure4.

3. Securethetubeflangetothehousingbushingwithtwo#6self-tapping

screws.

4. Fortubeslongerthanthewidthoftheairduct,thetubeshouldextend

outoftheoppositesideoftheduct.Iftherearemorethan2holesin

the section of the tube extending out of the duct, select a different

lengthusingTable1.Otherwise,trimtheendofthetubeprotruding

through the duct so that 1″ to 2″ (25 to 50mm) of the tube extend

outsidetheduct.Plugthisendwiththeendcapandtapeclosedany

holes in theprotrudingsectionof the tube.Besure toseal theduct

wherethetubeprotrudes.

NOTE: Thesamplingtubeendcapiscriticaltotheproperoperationofthe

ductsmokedetectors.Theendcapisneededtocreatetheproperairflow

tothesensoroftheductsmokedetector.

D200-39-00 6 I56-1977-004R

Figure 10. Wiring Diagram for DH200RPL Duct Detector with optional RA400Z:

5 7RA400Z

5 = Alarm Signal7 = Aux. Power (–)

DO NOT BREAK TAB ON RA400Z

Figure 11. System Wiring Diagram for DH200RPL Duct Smoke Detector with RTS451/RTS451KEY:

ALARM SIGNAL

AUX. POWER (–)

TEST +

TEST –

ALARM SIGNAL

NOT USED

NOT USED

CIRCUITREFERENCE

TESTSWITCH

FOR RTS451, TERMINAL 3 IS NOT USED. (RTS451 DOES NOT HAVE A TERMINAL 6.) FOR RTS451KEY, TERMINALS 3 AND 6 ARE NOT USED.

RTS 451/RTS451KEY

5

7

4

3

1

3

6

2

4

5

5 7PA400

5 = Alarm Signal7 = Aux. Power (–)

Figure 12. Wiring Diagram for DH200RPL with optional PA400:

[9.2] Standby, Alarm, And Sensitivity Tests

[9.2.1] Standby And Trouble

Standby— Ifthesystemcontrolpanelisprogrammed,lookforthe

presenceoftheflashingLEDsthroughthetransparent

housingcover.TheLEDwillflashwitheachcommunicat-

ion.

Trouble— IfthedetectorLEDsdonotflash,thenthede-tectorlacks

power(checkwiring,panelpro-gramming,orpowersup

ply),thedetectorboardismissing(replace),ortheunit

isdefec-tive(returnforrepair).Additionally,ifthecover

isremovedformorethan20minutes,theLEDsofthe

detectorwillnotflash.

Test— Thetroubleconditioncanbecausedintentionallytoveri-

fycorrectoperationofthesystem.Removethedetector

boardtocauseatroubleconditionlocallyandatthesys-

temcontrolpanel.

[9.2.2] Alarm Tests

[9.2.2.1] M02-04-00 Magnet Test

1. Placethepaintedsurfaceof themagnetontotheTEST locatoronthe

bottomofthedetectorhousing(Figure13).

2. Verifysystemcontrolpanelalarmstatusandcontrolpanelexecution

ofallintendedauxiliaryfunctions(i.e.fanshutdown,dampercontrol,

etc.)

3. Thedetectorisself-restoringwhenthemagnetisremoved.Verifythat

thesystemcontrolpanelhasreset;panelmayhavetobereset.

Figure 13. Testing detector alarm:

Figure 14. Insulator Card for DH200RPL Duct Smoke Detector:

TwoLEDsoneachductsmokedetectormaylight,ifprogrammedbythe

systemcontrolpanel,toprovidealocal,visibleindication.RemoteLED

annunciatorcapabilityisavailableasanoption.Eachductsmokedetector

canonlybewiredtooneremoteaccessory.

Differentpanelmanufacturersofferdifferentfeaturesetsacrosstheirdif-

ferentpanelmodels.Asaresult,certainfeaturesoftheDH200RPLmaybe

availableonsomecontrolpanels,butnotonothers.Thepossiblefeatures

availableintheDH200RPL,ifsupportedbythecontrolpanelare:

1. Panelcontrols theLEDoperationonsensor. Operationalmodesare

REDblink,REDcontinuous,andoff.

2. TheremoteoutputoftheRA400Zdoesnotfollowtheconditionofthe

ductsmokedetectorLEDwhileinstandby.Wheninalarm,theLED

outputofthedetectorandremotewillbeidentical.

Please refer to the operation manual for the UL

listed control panel for specific operation of the DH200RPL.

Wiring Instructions Disconnect power from the communication line before installing the

DH200RPL duct smoke detector.

WiretheDH200RPLductsmokedetectorpertheControlPanelInstallation

ManualandFigures9,10or11.

Setthedesiredaddressonthesensorboardaddresscodewheelswitches

(seeFigure7).

[7] Perform Detector Check

1. PerformSTANDBYANDTROUBLETESTperSection[9.2.1].

2. PerformMAGNETTESTperSection[9.2.2.1].The

RTS451testofSection[9.2.2.2]maysubstituteforthisrequirement.

3. PerformAIRFLOWTESTperSection[9.1].

4. PerformSMOKERESPONSETESTperSection[9.1.1].

[8] Install The Cover

Install the cover using the six screws that are captured in the housing

cover.BecertainfiltersareinstalledasspecifiedinSection[5].Makesure

that thecover fits into thebasegrooveand thatallgasketsare in their

properpositions.Tightenthesixscrews.

[9] Duct Smoke Detector Maintenance and Test Procedures

TestandmaintainductsmokedetectorsasrecommendedinNFPA72.The

testscontainedinthismanualweredevisedtoassistmaintenanceperson-

nelinverificationofproperdetectoroperation.

Beforeconductingthesetests,notifytheproperauthoritiesthatthesmoke

detectionsystemwillbetemporarilyoutofservice.Disablethedeviceor

systemundertesttopreventunwantedalarms.

D200-39-00 4 I56-1977-004R

NOTE: Air currents inside the duct may cause excessive vibration,

especiallywhen the longer sampling tubesareused. In these

casesa3 inch(75mm)floorflange(availableatmostplumb-

ingsupplystores)maybeusedtofastenthesamplingtubeto

the other side of the duct. When using the flange/connector

mounting technique, drill a 1-inch to 11⁄4-inch (25 to 32mm)

holewheretheflangewillbeused.

[5] Install The Filters Toinstallthesamplingtubefilters,simplypushthefiltersintothesam-

plingandexhausttubeholes,asshowninFigure6.Ifametalsampling

tubeisused,installthefiltersintothetubeend.

CAUTION

Filtersrequireperiodiccleaningorreplacement,dependingontheamount

ofdustanddirtaccumulated.Visuallyinspectthefiltersatleastquarterly;

inspectthemmoreoftenifthedustaccumulationwarrantsit.SeeSection

[9.1.2] for more information. Replacement filters can be ordered (filter

P/NF36-09-11).

[6] Field Wiring Installation Guidelines

Allwiringmust be installed in compliancewith theNational Electrical

Codeandthelocalcodeshavingjurisdiction.Properwiregaugesshould

be used. The conductors used to connect smoke detectors to control

panels and accessory devices should be color-coded to prevent wiring

mistakes. Improper connections can prevent a system from responding

properlyintheeventofafire.

Forsignalwiring,(thewiringbetweendetectorsorfromdetectorstoauxil-

iarydevices),itisusuallyrecommendedthatsingleconductorwirebeno

smallerthan18gauge.Theductsmokedetectorterminalsaccommodate

wiresizesupto12gauge.Thelastfoot(0.3m)ofconduitshouldbeflex-

ibleconduit(availableinelectricalsupplyhouses),whichfacilitateseasier

installationandputslessstrainontheconduitholesinthehousing.Solid

conduitconnectionsmaybeusedifdesired.

Smokedetectorsandalarmsystemcontrolpanelshavespecificationsfor

Signaling-LineCircuit(SLC)wiring.Consultthecontrolpanelmanufactur-

er’sspecificationsforwiringrequirementsfortheparticularmodelcontrol

panelbeingusedbeforewiringthedetectorloop.

The DH200RPL detector is designed for ease of wiring. The housing

providesa terminalstripwithclampingplates. Wiringconnectionsare

madebystrippingabout3⁄8-inch(9mm)ofinsulationfromtheendofthe

wire, sliding thebareendunder theplate,and tightening theclamping

platescrew.

Figure 6. Sampling tube filter installation:

Figure 7. Rotary Address Switches

D200-39-00 5 I56-1977-004R

[9.1] Smoke Entry Tests

[9.1.1] Air Flow

Thisproductisdesignedtooperateoveranextendedairspeedrangeof100

to4000FPM.Toverifysufficientsamplingofductedair,turntheairhan-

dleronanduseamanometertomeasurethedifferentialpressurebetween

thetwosamplingtubes.Thedifferentialpressureshouldmeasureatleast

0.0015inchesofwaterandnomorethan1.2inchesofwater.Becausemost

commerciallyavailablemanometerscannotaccuratelymeasurevery low

pressuredifferentials,applicationswithlessthan500FPMofductairspeed

mayrequireoneofthefollowing:1)theuseofacurrent-sourcingpressure

transmitter(DwyerSeries607)perSection9.1.4or;2)theuseofaerosol

smokepersection9.1.2.

[9.1.2] Air Flow Test using Aerosol Smoke

Thistestisintendedforlow-flowsystems(100-500FPM).Iftheairspeed

isgreaterthan500FPM,useaconventionalmanometertomeasurediffer-

entialpressurebetweenthesamplingtubes,asdescribedin9.1.1.

Drilla 1⁄4″hole3 feetupstreamfromtheduct smokedetector.With the

airhandleron,measure theairvelocitywithananemometer.Air speed

mustbeatleast100FPM. Sprayaerosolsmoke*intotheductthroughthe1⁄4″hole for fiveseconds.Wait twominutes for theductsmokedetector

to alarm. If the duct smoke detector alarms, air is flowing through the

detector.Removetheductsmokedetectorcoverandblowouttheresidual

aerosolsmokefromthechamberandresettheductsmokedetector.Use

ducttapetosealtheaerosolsmokeentryhole.

*Aerosol smoke can be purchased from Home Safeguard Industries,Malibu,CA.Phone:310/457-5813.

[9.1.3] Smoke Entry Test

Todetermineifsmokeiscapableofenteringthesensingchamber,visually

identify anyobstructions. Plug the exhaust and sampling tubeholes to

preventductedairfromcarryingsmokeawayfromthedetectorhead,then

blowsmokesuchascigarette,cottonwick,orpunkdirectlyattheheadto

causeanalarm.REMEMBERTOREMOVETHEPLUGSAFTERTHISTEST,

ORTHEDETECTORWILLNOTFUNCTIONPROPERLY.

[9.1.4] Air Flow Test using Dwyer Series 607 Differential Pressure

Transmitter

Verifytheairspeedoftheductusingananemometer.Airspeedmustbeat

least100FPM.WiretheDwyertransmitterasshowninFigure8.Connect

theleadsofthemetertoeithersideofthe1000Ωresistor.Allowunitto

warmupfor15seconds.WithbothHIGHandLOWpressureportsopen

to ambient air, measure and record the voltage drop across the 1000Ω

resistor(measurement1),4.00voltsistypical.Usingflexibletubingand

rubberstoppers,connecttheHIGHsideofthetransmittertothesampling

tubeoftheductsmokedetectorhousing,andtheLOWsideofthetrans-

mittertotheexhausttubeoftheductsmokedetectorhousing.Measure

andrecordthevoltagedropacrossthe1000Ωresistor(measurement2).

Subtractthevoltagerecordedinmeasurement1fromthevoltagerecorded

in measurement 2. If the difference is greater than 0.15 volts, there is

enoughairflowthroughtheductsmokedetectorforproperoperation.

Figure 8. Procedure for verifying air flow:

DIFFERENTIALPRESSURE

TRANSMITTERMODEL #607-01

HIGH LOW

TO SAMPLING TUBE

TO EXHAUST TUBE

VOLT METERFLUKE MODEL 87OR EQUIVALENT

1000 OHM 5% 1 WATT RESISTOR

9 VOLTBATTERY

9 VOLTBATTERY

9 VOLTBATTERY

15 TO 36VDCSUPPLY

H0163-01

[9.1.5] Filter Replacement

Thefiltersdonotsubstantiallyaffectsmokeperformanceevenwhenup

to 90%of the filter is clogged.Quarterly visual inspectionusually suf-

ficestodeterminewhetherthefiltersshouldbereplacedbecauseonlya

highpercentageof contaminationaffectsperformance. If further testing

isrequired,comparedifferentialpressurereadingswithandwithoutthe

filtersinstalled.Ifthedifferenceexceeds10%replacethefilters.Innocase

shouldthepressuredifferentialfallbelow0.0015inchesofwater.

Figure 9. Wiring Diagram for DH200RPL Duct Smoke Detector using a UL listed control panel:NOTE: JumperJ1shuntmustbeinstalledfor2-Wapplications.J1shuntmustberemovedforpowerPCBsupervision.

+

–

CO

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CO

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CO

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COMMUNICATIONLINE

UL LISTED CONTROLPANEL

1ST DETECTORIN LOOP

2ND DETECTORIN LOOP

1 2 1 2

J1 JUMPER J1 JUMPER

NOTE: J1 JUMPER MUST BE INSTALLED FOR 2W APPLICATIONS. THE J1 JUMPER MUST BE REMOVED FOR POWER BOARD SUPERVISION.