Installation Guide

WARNINGS AND CAUTIONS:
• Tobeinstalledand/orusedinaccordancewithappropriateelectricalcodesandregulations.
• Ifyouareunsureaboutanypartoftheseinstructions,consultaqualiedelectrician.
• Controllingaloadinexcessofthespeciedratingswilldamagetheunitandposeriskofre,electricshock,personalinjuryordeath.
Checkyourloadratingstodeterminesuitabilityforyourapplication.
• Donotinstallthisunittocontrolareceptacle.
WARNINGS AND CAUTIONS:
• Donottouchthesurfaceofthelens.Cleanoutersurfacewithadampclothonly.
• Disconnectpoweratcircuitbreakerorfusewhenservicing,installingorremovingxture.
• Usethisdeviceonlywithcopperorcoppercladwire.WithaluminumwireuseonlydevicesmarkedCO/ALRorCU/AL.
• NeutralconnectionrequiredwhenusedincircuitswithGFCIs.UseCatNo.'sOSSMD-MDorOSSMD-FTonly.
TwoCircuit(OneLocation)orMulti-Location
Multi-Technology Designer Wall Switch Occupancy Sensor with Dual Relays
California Title 24 2005 Compliant
Cat. No. OSSMD-MD, OSSMD-FT, OSSMD-GD
Incandescent/Tungsten:800W@120VPrimary/SecondaryBallast:1200VA@120VPrimary-800VA@120VSecondary
Ballast:2700VA@277VPrimary-1200VA@277VSecondaryMotor:1/4hp@120VPrimary/Secondary
Operating Temperature Range:0°Cto50°C
Relative Humidity:20%to90%non-condensing
No Minimum Load Required
Compatiblewithincandescentlamps,low-voltagelightingwithelectronicandmagnetictransformers,electronicandmagneticuorescentballasts,andfans.
INSTALLATION INSTRUCTIONS
TOOLS NEEDED TO INSTALL YOUR SENSOR
Slotted/PhillipsScrewdriver ElectricalTape 
Pliers   Cutters  
SmallSlottedScrewdriver
• Leviton’sDecora
®
styledesign
• Sensorcanbegangedtogetherwithotherunitsinamultiple-switch
wallplate.
• Self-AdaptiveTechnologyadjuststooccupancypatternsofuseinauto
adaptmode.
• TheAdaptingTime-outwalk-throughfeaturepreventslightsfrom
remainingONforanextendedperiodafteronlyamomentary
occupancy.
• Switchestwoseparateloadcircuits.
• Two(MDandGDmodels)convenientPush-Buttonsprovidemanual
ON/OFFswitchingatanytime.
• Adjustablehorizontaleldofview.
• IntegratedphotocellpreventslightsfromturningONwhenroomis
adequatelyilluminatedbynaturallight.
• TrueZero-Crossforprimaryrelayprovidesmaximumcontactlifeand
compatibilitywithelectronicballasts.
• Dualdetectiontechnology,bothPassiveInfraredandUltrasonic.Can
beconguredasUltrasonicOnlyandPIROnly.
Leviton'sDesignerMulti-TechnologyWallSwitchOccupancySensor,
Cat.No.OSSMD,isdesignedtodetectmotionusingthepassiveinfrared
(PIR)sensorfromsources(suchasapersonenteringaroom)withinits
eld-of-view(monitoredspace)andautomaticallyswitchlightsON.The
OccupancySensorsensesmotionwithinitsmaximumcoverageareaof
2400sq.ft(223m
2
).TheUltrasonic(US)sensorsworkwiththePIRto
keepthelightsONwhenoccupied.ThecontrolledlightswillremainON
untilnomotionisdetectedandthescheduledtime-delayhasexpired,at
whichpointthelightswillbeturnedOFF.Inadaptingtime-outmodethe
sensoradaptsitstimedelaysettingstotheoccupancypatternsofaroom.
TheOSSMD-MDisanOccupancySensorthatisdesignedtocontroltwo
separatelightingcontrolcircuitsfromasingleunit.Thisallowstheuserto
replacetwoswitcheswithasingleunitthatwillprovidetheconvenience
andenergysavingsofanoccupancysensor.Itisadualrelaydevice,
relayonecanbeAutoONorManualONandrelaytwoisManualON
only.ThedevicecontainsaphotocellthatprovidesanAmbientLightHold
Offfunctionforrelaynumberone.BothrelaysoperateasAutoOFF.The
devicecanbeconguredforUltrasonicwithPIR,UltrasonicOnly,andPIR
Onlymodesofoperation.
TheOSSMD-GDhasallthefunctionalityoftheOSSMD-MDwithouta
neutralconductor.Itisintendedforuseinretrotapplicationswherea
neutralisnotavailableinthewallbox.
TheOSSMD-FTmodelisintendedforapplicationssuchasacommercial
bathroomwhereaconvenienceexhaustfanmustbecontrolled.The
tworelaysturnONintandembutremainONfordifferentdurations.
ThedevicecanbeconguredtobeeitherintheAutoONorManual
ONmodes.TheAutoONmodeutilizesthesensortechnologytoturn
ONwhilethesinglepushbuttononthefrontofthedeviceprovidesthe
ManualONactivation.AxedtimedelayOFFof10minutes,whichstarts
whentherstrelayturnsoff,willapplytothesecondrelayinbothofthese
modesofoperation.ItcanbeconguredforeitherUltrasonicwithPIR,
UltrasonicOnly,orPIROnlymodesofoperation.Thisdevicerequiresa
neutralconductor.
Cat. No. OSSMD is ETL listed, cETL listed and conforms to California
Title 24 requirements.
ThePIROccupancySensorusesasmallsemiconductorheatdetector
thatresidesbehindamulti-zoneopticallens.ThisFresnellens
establishesdozensofzonesofdetection.TheSensorissensitivetothe
heatemittedbythehumanbody.InordertoinitiallytriggertheSensor,
thesourceofheatmustmovefromonezoneofdetectiontoanother.The
deviceismosteffectiveinsensingmotionacrossitseld-of-viewanditis
lesseffectivesensingmotiontowardsorawayfromitseld-of-view.Keep
thisinmindwhenselectingtheinstallationlocation(refer to Field-of-View
diagrams).
TheUSOccupancySensorusesanon-audible,highfrequency(40kHz)
tosenseDopplershiftscausedbymotioninthespace.TheUSismore
sensitivetosmallmotionanddoesnotrelyonlineofsightfordetection.If
bothsensorshavenotdetectedanymotionforthesettimeoutperiod,the
relaysandtheircorrespondingloadswillbeturnedOFF.
Notethatoccupancysensorsrespondtorapidchangesintemperature,so
careshouldbetakennottomountthedevicenearaclimatecontrolsource
(i.e.radiators,airexchanges,andairconditioners).Hotorcolddraftswill
looklikebodymotiontothedeviceandwilltriggeritiftheunitismountedtoo
close.It is recommended to mount the Occupancy Sensor at least 6 feet
away from a climate control source.
Inaddition,itisalsorecommendedNOTtomounttheOccupancySensor
directlyunderalargelightsource.Largewattagebulbs(greaterthan
100Wincandescent)giveoffalotofheatandswitchingthebulbcausesa
temperaturechangethatcanbedetectedbythedevice.
MounttheOccupancySensoratleast6ft.awayfromlargebulbs.Ifitis
necessarytomountthedevicecloser,lowerthewattageofthebulbdirectly
overhead.
WARNING:TO AVOID FIRE, SHOCK, OR DEATH; TURN
OFF POWER atcircuitbreakerorfuseandtestthatpoweris
offbeforewiring!
Step 1
ONOFF
ONOFF
ONOFF
ONOFF
ONOFF
ONOFF
ONOFFONOFF
ONOFF
ONOFF
ONOFF
ONOFF
• Pulloffpre-cutinsulationfromsensorleads.
• Makesurethattheendsofthewiresfromthewallboxarestraight
(cut if necessary).
• Removeinsulationfromeachwireinthewallboxasshown.
Preparing and connecting wires:
9/16"
(1.4 cm)
Strip Gage
(measure bare
wire here)
Cut
(if necessary)
Step 3
INSTALLING YOUR SENSOR
NOTE:UsecheckboxeswhenStepsarecompleted.
4
1
3
2
5
1.Line(Hot)
2.Neutral
3.Ground
4.Load
5.SecondaryLoad
Installing your Sensor - Single Location
Application:
Step 4
Identifying your wiring application
(most common):
Step 2
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Secondary
Load
Sensor
Black
Blue
Red
Red
Green
Ground
Line
120/277VAC
60Hz
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Secondary
Load
Sensor
Black
Blue
Red
Red (To Phase 2)
Green
Ground
Line
120/277VAC
60Hz
OSSMD-GD Wiring Methods
NOTE:TheoccupancysensorCat.No.OSSMD-GDdoesnotrequirea
neutralconnectioninordertooperate.Itmusthaveagroundconnection.
Usethegroundwireintheelectricalboxforgroundconnection.Ifthereis
nogroundwire,ensureelectricalboxisgroundedandattachgroundwire
toboxbyanapprovedconnectionmethod.
OSSMD-MD Wiring Methods
NOTE:TheoccupancysensorCat.No.OSSMD-MDrequiresaneutral
connectiontooperate.Usethegroundwireintheelectricalboxfor
groundconnection.Ifthereisnogroundwire,ensureelectricalboxis
groundedandattachgroundwiretoboxwithascrew.
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Secondary
Load
Sensor
Black
Blue
Red
Red
Green
Ground
Line
120/277VAC
60Hz
White
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Secondary
Load
Sensor
Black
Blue
Red
Red (To Phase 2)
Green
Ground
Line
120/277VAC
60Hz
White
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Fan/
Secondary
Load
Sensor
Black
Blue
Red
Red
Green
Ground
Line
120/277VAC
60Hz
White
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Fan/
Secondary
Load
Sensor
Black
Blue
Red
Red (To Phase 2)
Green
Ground
Line
120/277VAC
60Hz
White
OSSMD-FT Wiring Methods
NOTE:TheoccupancysensorCat.No.OSSMD-FTrequiresaneutral
connectiontooperate.Usethegroundwireintheelectricalboxfor
groundconnection.Ifthereisnogroundwire,ensureelectricalboxis
groundedandattachgroundwiretoboxwithascrew.
Installing your Sensor - Multi-Location Wiring
Application:
Step 5
WARNING:Ifyouareunsureaboutanypartoftheseinstructions,
consultaqualiedelectrician.
NOTE:EithersensorcanturnthelightsON.Bothsensorsmust
time-outtoOFF,orbothmanualbuttonsmustbepressedforthe
lightstoturnOFF.
NOTE:Allow1minuteforwarm-upafterconnectingandenergizing.
NOTE:BothoccupancysensorsCat.No.OSSMD-MDandOSSMD-FT
requireaneutralconnectioninordertooperate.Usethegroundwirein
theelectricalboxforgroundconnection.Ifthereisnogroundwire,ensure
electricalboxisgroundedandattachgroundwiretoboxwithascrew.
NOTE: Thesedevicesarenottrue3wayproducts.
WARNING:Ifyouareunsureaboutanypartoftheseinstructions,
consultaqualiedelectrician.
NOTE:Allow1minuteforwarm-upafterconnectingandenergizing.
Hot (Black)
Phase 1
Neutral (White)
Primary
Load
Secondary
Load
Sensor 1 Sensor 2
Black
Black
Blue
Red
Blue
Red
Red
Red
Green
Ground
Green
Ground
Line
120/277VAC
60Hz
White
White
Hot (Black)
Phase 1
To Phase 2
Neutral (White)
Primary
Load
Secondary
Load
Sensor 1 Sensor 2
Black
Black
Blue
Red
Blue
Red
Red
Red
Green
Ground
Green
Ground
Line
120/277VAC
60Hz
White
White
DESCRIPTION
DI-000-OSSMD-00C
FEATURES