Plymovent OS-3 User manual

www.plymovent.com
EN User manual
OS-3 AUTOMATIC SYSTEM CONTROL
EN Control Box

00000116183/300421/D OS-3 1
TABLE OF CONTENTS
TABLE OF CONTENTS ......................................................................................................1
General Precautions........................................................................................................2
Preface .........................................................................................................................4
1 Introduction ..................................................................................................................4
1.1 IdenticationofTheProduct ............................................................................................4
1.2 General Description ........................................................................................................4
1.3 Product Combinations ..................................................................................................... 4
1.4 TechnicalSpecications ...................................................................................................4
1.5 Ambient Conditions ........................................................................................................ 4
1.6 TransportofTheUnit ......................................................................................................4
2 Product Description ........................................................................................................ 5
2.1 Operation......................................................................................................................5
3 Safety...........................................................................................................................5
4 Installation ....................................................................................................................6
4.1 Unpacking .....................................................................................................................6
4.2 Electric Connection ......................................................................................................... 6
4.3 PrimaryWiringProcedure ................................................................................................6
4.4 PrimaryWiringProcedures(ControlWiring) .......................................................................7
4.5 TransformerWiringProcedure ..........................................................................................7
4.6 PressureSwitchProcedure...............................................................................................8
4.7 TemperatureSwitchProcedure .........................................................................................8
4.8 Wireless Control System Procedure................................................................................... 8
5 Maintenance ..................................................................................................................9
6 Troubleshooting ............................................................................................................. 9
7 Spare Parts ...................................................................................................................9
8 Electricaldiagram...........................................................................................................9
9 Disposal........................................................................................................................9

00000116183/300421/D OS-3 2
GENERAL PRECAUTIONS
ATTENTION
Allowonlyqualiedpersonnelfamiliarwithadjustable
frequencyACdrives,andassociatedmachineryto
planorimplementtheinstallation,start-upand
subsequentmaintenanceofthesystem.Failureto
complycanresultinpersonalinjuryand/orequipment
damage.
ATTENTION
Toavoidanelectricshockhazard,verifythatthe
voltageonthebuscapacitorshasdischargedbefore
performinganyworkontheelectricalcontrols,
switchesand/ordrivesifapplicable.
ATTENTION
Incorrectly applied or installed electrical controls,
switchesand/ordrivescanresultincomponent
damageorareductioninproductlife.Wiringor
applicationerrors,suchas,undersizingthemotor,
incorrect or inadequate AC supply, or excessive
ambienttemperaturescanresultinmalfunctionofthe
system.
ATTENTION
Theelectricalcontrols,switchesand/ordrivesmay
containESD(ElectrostaticDischarge)sensitiveparts
and assemblies. Static control precautions may be
requiredwheninstalling,testing,servicingor
repairingthisassembly.Componentdamagecan
result if ESD control procedures are not followed.
IMPORTANT USER INFORMATION
Readthisdocumentinentiretybeforeyouinstall,congure,
operate,ormaintainthisproduct.Usersarerequiredto
familiarizethemselveswithinstallationandwiringinstructionsin
addition to requirements of all applicable codes, laws and
standards.
Activitiesincludinginstallation,adjustments,puttingintoservice,
use, assembly, disassembly, and maintenance are required to be
carriedoutbysuitablytrainedpersonnelinaccordancewith
applicable code of practice.
Ifthisequipmentisusedinamannernotspeciedbythe
manufacturer,theprotectionprovidedbytheequipmentmaybe
impaired.
In no event will Plymovent be responsible or liable for indirect or
consequentialdamagesresultingfromtheuseorapplicationof
thisequipment.
Theexamplesanddiagramsinthismanualareincludedsolely
forillustrativepurposes.Becauseofthemanyvariablesand
requirementsassociatedwithanyparticulateinstallation,
Plymovent cannot assume responsibility or liability for actual use
basedontheexamplesanddiagrams.
NopatentliabilityisassumedbyPlymoventwithrespecttouse
ofinformation,circuits,equipment,orsoftwarethatmaybe
describedinthismanual.Throughoutthismanual,when
necessary,notesmaybeusedtomakeyouawareofsafety
considerations.
Theoperationofexhaustextractionsystemscanbeaffectedby
variousfactorsincludingbutnotlimitedtoproperdesignofthe
system,operatingprocedures,serviceandmaintenance.Fume
exhaustexposurelevelsshouldbecheckeduponinstallationand
periodicallythereaftertoensurethattheyfallwithinapplicable
regulationsandexposurelimitvalues.
Plymoventsystemsaremadecodecompliant,pleaseensurethe
systemisproperlydesigned,operated,servicedandmaintained.
WARNING!
Identiesinformationaboutpracticesor
circumstancesthatcancauseanexplosionina
hazardousenvironment,whichmayleadtopersonal
injury,death,propertydamage,oreconomicloss.
ATTENTION
Identiesinformationaboutpracticesor
circumstancesthatcanleadtopersonalinjuryor
death,propertydamage,oreconomicloss.Attentions
helpyouidentifyahazard,avoidahazard,and
recognizetheconsequent.
IMPORTANT
Identiesinformationthatiscriticalforsuccessfulapplication
andunderstandingoftheproduct.
SHOCK HAZARD
Labelsmaybeonoutsideorinsideoftheequipment,
forexamplecontrolbox,toalertpeoplethat
dangerousvoltagemaybepresent.
ARC FLASH HAZARD
Labelsmaybeonoutsideorinsideoftheequipment,
for example control box, to alert people to potential
ArcFlash.ArcFlashwillcausesevereinjuryordeath.
WearproperPersonalProtectionEquipment(PPE).
FollowALLregulatoryrequirementsforsafework
practicesandforPersonalProtectiveEquipment(PPE).
BE SURE THAT ALL INSTALLATION, OPERATION,
MAINTENANCE AND REPAIR PROCEDURES ARE
PERFORMED ONLY BY QUALIFIED INDIVIDUALS.

00000116183/300421/D OS-3 3
EN - ORIGINAL INSTRUCTION
Allrightsreserved.Theinformationgiveninthisdocumenthasbeencollectedforthegeneralconvenienceofourclients.Ithasbeenbasedongeneraldata
pertainingtoconstructionmaterialpropertiesandworkingmethodsknowntousatthetimeofissueofthedocumentandisthereforesubjectatanytimeto
changeoramendment,andtherighttochangeoramendisherebyexpresslyreserved.Changesmaybemadewithorwithoutnotication,itistheusers
responsibilitytoensuretheyhaveattainedthemostrecentcopyofthisdocumentfortheirles.Theinstructionsinthispublicationonlyserveasaguideline
forinstallation,use,maintenanceandrepairoftheproductmentionedonthecoverpageofthisdocument.Thispublicationistobeusedforthestandard
modeloftheproductofthetypegivenonthecoverpage.Thusthemanufacturercannotbeheldresponsibleforanydamageresultingfromtheapplication
ofthispublicationtotheversionactuallydeliveredtoyou.Thispublicationhasbeenwrittenwithgreatcare.However,themanufacturercannotbeheld
responsible,eitherforanyerrorsoccurringinthispublicationorfortheirconsequences.

00000116183/300421/D OS-3 4
PREFACE
Using this manual
Thismanualisintendedtobeusedasaworkofreferencefor
professional,welltrainedandauthorizeduserstobeableto
safelyinstall,use,maintainandrepairtheproductmentionedon
thecoverofthisdocument.Thisusermanualshouldalwaysbe
keptwiththeproduct,aswellasaduplicatecopybekeptbythe
redepartmentorcityservicedepartmentafterinstallation.
Pictograms and symbols
Thefollowingpictogramsandsymbolsareusedinthismanual:
ATTENTION
Aremarkwithadditionalinformationfortheuser.A
remarkbringspossibleproblemstotheuser’s
attention.
CAUTION!
Procedures,ifnotcarriedoutwiththenecessary
caution,coulddamagetheproduct,theworkshopor
theenvironment.
WARNING!
Procedureswhich,ifnotcarriedoutwiththe
necessarycaution,maydamagetheproductand/or
causeseriouspersonalinjury.
CAUTION!
Riskofelectricshock.
WARNING!
Firehazard!Importantwarningtopreventre.
Text Indicators
Listingsindicatedby“-”(hyphen)concernenumerations.
Listingsindicatedby“•”(bulletpoint)describestepstoperform.
Service and Technical Support
Forinformationaboutspecicadjustments,maintenanceor
repairjobswhicharenotdealtwithinthismanual,please
contactthesupplieroftheproduct.Theywillalwaysbewillingto
helpyou.Makesureyouhavethefollowingspecicationsat
hand:
-product name
-serial number
Youcanndthisdataontheidenticationplate.
1 INTRODUCTION
1.1 Identication of The Product
Theidenticationplatecontains,amongotherthings,the
followingdata:
-product name
-serial number
- supplyvoltageandfrequency
-power consumption
1.2 General Description
TheOS-3controlboxisanenergysavingcontrolunitdesigned
tobeusedforcontrollingexhaustfansinvehicleexhaust
systems,withorwithoutaparticleltrationsystem.Together
withapressureswitchandoptionaltemperatureswitch,this
energysavingcontrollermakesafullyautomaticsystemforthe
controlofthevehicleexhaustfan.Thecontrollercanbesetfor
bothmanualorautomaticcontrolofthefan.Dependingonthe
congurationofasystem,severaloptionsforswitchesand
remotestartfunctionsareavailable.Thetwomostcommon
typesofswitchesthataretypicallyusedareapressureswitchto
detectpressuredifferencesinthesystemwhenavehicleis
connected,and,anoptionaltemperatureswitchtodetect
temperaturelevelsinthesystemalsocreatedwhenavehicleis
connected.
TheOS-3alsoincludesanalarmoutput,whichcanbeusedfor
statusoutputtoanonsitecontrolsystem(byothers).Abuilt-in
delayofffunctionwillensurethatthefancontinuestorunfor
sometimeafterthevehiclehasbeendisconnected,thisensures
allofthetoxicgasesintheductsystemwillbeexhaustedoutof
theductingbeforethefanstops.Thedelayofftimecaneasilybe
adjustedbetween3minutes-60minutes.
1.3 Product Combinations
TheOS-3controlboxisdesignedinconjunctionwithPlymovent
vehicleexhaustextractionsystemcomponentsincluding
PlymoventfansandSTR,VSRandSBTrailsystemsspecically
foremergencyresponseandrevehicleapplications.
1.4 Technical Specications
LxWxH 15.75”x6”x11.75”(400mmx152mmx
298mm)
MountingHoleDiameter .4”(10mm)diameterholes
MountingHoleLocation 14.15”x10.15”(359mmx258mm)on
centers
Weight 25lbs(11.34kg)
BoxRating NEMA 12
CompliantWith CE,NFPA,cUL*
DelayOffTimerRange 3minutes-60minutes
*Formostup-to-dateULinformation,includingonPlymovent,please
visittheonlinecerticationsdirectoryatwww.ul.com.
Refertotheavailableproductdatasheetfordetailed
productspecications.
1.5 Ambient Conditions
Operatingtemperature:
-min.
-nom.
-max.
- 41°F(5°C)
- 68°F(20°C)
- 104°F(40°C)
Max.relativehumidity 80%
Storageconditions - 41-104°F(5-40°C)
- relativehumiditymax.80%
Suitable for outdoor use no
1.6 Transport of The Unit
TheOS-3controlboxisdeliveredasself-containedexhaust
systemcontrollercompletewithfunctionsformanualrun,and
automaticstartwithdelayoffandstop.
Themanufacturercannotbeheldliableforanydamagetothe
unitduetoshippingormishandling.Alwayshandletheunitand
theaccompanyingoptionsand/oraccessories,ifany,withcare.

00000116183/300421/D OS-3 5
2 PRODUCT DESCRIPTION
2.1 Operation
Thecontrollercanbesetforbothmanualorautomaticcontrolof
thefan.Dependingonsystem,differentswitchesforstartingthe
systemcanbeused.Mainlytwotypesofswitcheswillbeused;
pressureswitchtodetectpressuredifferenceinsystemsand
temperatureswitchestodetecttemperaturelevelinthesystem.
TheOS-3controlboxalsoincludesavisiblealarmdevice,which
canbeusedforstatusoftheairowintheexhaustsystem.A
builtin“afterrunningtime”functionwillsecurethattoxicgases
intheductsystemwillbeexhaustedoutoftheductingbefore
thefanstops.Theafterrunningtimecaneasilybeadjusted
between3minutes-60minutes.
Whenthecontrolunitissetinto“automatic”position,the
exhaustfanisstartedbyasignalfromanexternallymounted
pressure,or/andtemperatureswitch.Normallythesystemis
activatedbythepressureswitchandkeptrunningbythe
optionaltemperatureswitch.
2.1.1 Pressure switch
Thepressureswitchreactstoanincreaseinpressurewithinthe
hose(positivepressure)whichoccursinthesystemwhena
vehicleisstarteduporattachedwhileitisrunning.Thepressure
switchisadjustabletoaccomodatevariousenginesizes.
Adjustmentstothisswitchshouldonlybeperformedby
authorizedservicetechnician.
2.1.2 Optional: Temperature switch
Theoptionaltemperatureswitchdetectswhenthetemperature
inthesystemhasreachedbetween90°Fto130°F(32°Cto
54°C)(tobedeterminedandadjustedbyanauthorizedservice
technicianonly).
Thistemperatureriseoccurswhenarunningvehicleisattached
tothesystem,andwillensurethesystemstaysrunningwhile
thevehicleisinoperation.
2.1.3 Automatic Mode
Thismodeofoperationallowsforeverydayusewhenexitingthe
restationforemergencycalls.Whentheengineisstarted,the
pressureswitchcloses,thiscompletesthecircuittothecontrol
boxcausingthefantoturnon.Whentheengineturnsofforthe
apparatusleavestherestation,thepressureand/or
temperatureinthesystemdecreasesandthecontrolbox
enteresintoadelayoffmode.Oncethetimerhascompletedits
(adjustable)timedelay,thefanstopsafterthepresetruntimeis
up.
2.1.4 Manual Mode
WhenthecontrolboxissettotheManualRunMode,the
exhaustfanwillruncontinuously.Thisshouldbeutilizedfor
stationaryrunningofthevehiclesintherestationfor
maintenancechecks.WhileintheManualRunModeandrunning
avehicleatHIGHIDLE,operationshouldbelimitedto1500RPM
for5minutes.ToexitManualRunMode,presstheSTOPbutton.
ThesystemwillshutdownandautomaticallyreturntoAUTO
STARTandbereadyforthenextemergencycall.For2007or
newerdieselvehicleswithDPF(DieselParticulateFilter)units
shouldneverbeallowedto“regenerate”whileconnectedtothe
exhaustsystem.Vehicleswhichhaverecentlyundergone
“regeneration”shouldnotbeconnectedtothesystemuntil
normalexhaustgasoperatingtemperatureshavereturned.
2.1.5 Stop Mode
Whenpressingthestopbutton,thefanwillstopimmediately,
andafterashortperiodoftime(2-3seconds),thecontrolbox
willautomaticallymovebackintoautomaticmode.Thisisa
built-insafetyfunctionwhichwillreducetheriskofhaving
exhaustgasleakageinthesystemduetooperatorerror.
2.1.6 Alarm Mode
Thealarmdevicewilldetecthighpressurelossacrossthe
optionallterunit.WhentheFanOnLEDindicatorlightis
ashing,thepressureacrossthelterhasexceededthe
acceptablerange,theltershouldbereplacedassoonas
possible to maintain proper system operation.
3 SAFETY
General
Themanufacturerdoesnotacceptanyliabilityfordamagetothe
productorpersonalinjurycausedbyignoringthesafety
instructionsinthismanual,orbynegligenceduringinstallation,
use,maintenance,andrepairoftheproductmentionedonthe
coverofthisdocumentandanycorrespondingaccessories.
Specicworkingconditionsorusedaccessoriesmayrequire
additional safety instructions. Immediately contact your supplier
ifyoudetectapotentialdangerwhenusingtheproduct.
The user of the product is always fully responsible for
observing the local safety instructions and regulations.
User Manual
- Everyoneworkingonorwiththeproductmustbefamiliarwith
thecontentsofthismanualandmuststrictlyobservethe
instructionstherein.Themanagementshouldinstructthe
personnelinaccordancewiththemanualandobserveall
instructionsanddirectionsgiven.
- Neverchangetheorderofthestepstoperform.
- Thisusermanualshouldalwaysbekeptwiththeproduct,as
wellasaduplicatecopybekeptbytheredepartmentorcity
service department after installation.
- Theexamplesanddiagramsinthismanualareincludedsolely
forillustrativepurposes.Becauseofthemanyvariablesand
requirementsassociatedwithanyparticularinstallation,
Plymovent cannot assume responsibility or liability for actual
usebasedontheexamplesanddiagrams.
- NopatentliabilityisassumedbyPlymoventwithrespecttouse
ofinformation,circuits,orequipmentdescribedinthismanual.
- Reproductionofthecontentsofthismanual,inwholeorin
part,withoutpriorwrittenpermissionofPlymoventis
prohibited.
Pictograms and Instructions On The Product (if
present)
- Thepictograms,warningandinstructionsattachedtothe
productarepartofthesafetyfeatures.Theymustnotbe
coveredorremovedandmustbepresentandlegibleduring
theentirelifeoftheproduct.
- Ifpictogram,instructionsorlabelsontheproductbecome
damaged,missingorillegibleimmediatelydiscontinueuseof
theunitandreplaceorrepairdamagedorillegiblepictogram,
warningsandinstructions.
- Contactyourlocalauthorizedservicetechnicianforsupport.
Users
Theuseofthisproductisexclusivelyreservedtoauthorized,
trainedandqualiedusers.Temporarypersonnelandpersonnel

00000116183/300421/D OS-3 6
intrainingcanonlyusetheproductundersupervisionand
responsibilityofskilledtechnicians.
Intended Use1
Theproducthasbeendesignedasacontrolboxtooperatea
Plymoventexhaustextractionfan.Usingtheproductforother
purposesisconsideredcontrarytoitsintendeduse.The
manufactureracceptsnoliabilityforanydamagesorinjury
resultingfromsuchuse.Theproducthasbeenbuiltin
accordancewithstate-of-the-artstandardsandrecognized
safetyregulations.Onlyusethisproductwheninaccordance
withitsintendeduseandtheinstructionsexplainedintheuser
manual.
Technical Specications
Thespecicationsgiveninthismanualmustnotbealteredfrom
theinformationgivenherewithin.Thisinformationissubjectto
changeatanytimewithorwithoutnotice.
Modications
Modicationof(partsof)theproductisnotallowed,exceptthe
bottomplate,whichisallowedtobeusedasentrancepointfor
externalcabling.
Installation
- Theinstallationofthisproductisexclusivelyreservedto
authorized,well-trainedandqualiedelectrician.
-All installations must meet any and all applicable local laws,
regulations,standardsandrequirements.
- Itistheresponsibilityoftheinstallingpartytoensurethatall
codesaremetduringtheinstallationofthiscontrolsystem.
Anyinspectionsrequiredarethesoleresponsibilityofthe
installingparty.
- Inspecttheproductandcheckitfordamage.
- Verifythefunctioningofthesafetyfeatures.
- Neverinstalltheproductinfrontofentrancesandexitswhich
mustbeusedforemergencyservices.
- Makesurethattheworkshop,inthevicinityoftheproduct,
containssufcientapprovedreextinguishers.
- Itisrecommendedthatthecontrolboxbemountedat
approximately6feet(1.8m)abovenishedoorlevelto
facilitate operator use and service if necessary.
Use
- Checktheworkingenvironment.Donotallowunauthorized
personstoentertheworkingenvironment.
- Protecttheproductagainstwaterandhumidity.
- Stayalertandkeepyourattentiontoyourwork.Donotuse
theproductwhenyouareundertheinuenceofdrugs,alcohol
or medicine.
- Makesuretheroomisalwayssufcientlyventilated;
thisappliesespeciallytoconnedspaces.
Service, maintenance and repairs
WARNING!
Maintenanceshouldonlybeperformedby
authorized,qualiedandtrainedpersons(skilled)
usingappropriateworkpractices.
WARNING!
Electrocution hazard
Disconnectmainsbeforeservicing.Failuretodoso
couldresultinseriouspersonalinjuryordeath.
1 “Intendeduse”asexplainedinEN-ISO12100istheuseforwhichthetechnical
productissuitedasspeciedbythemanufacturer,inclusiveofmanufacturers
directionsinthesalesbrochure.Incaseofdoubt,itistheusewhichcanbe
deducedfromtheconstruction,themodelandthefunctionofthetechnical
productwhichisconsiderednormaluse.Operatingthemachinewithinthelimits
ofitsintendedusealsoinvolvesobservingtheinstructionsintheusermanual.
4 INSTALLATION
WARNING!
Donotattemptinstallationofthisunitunlessyou
arefamiliarwiththenecessarytools,equipment,
utilityconnectionsandpotentialhazards.
Installationshouldbeperformedonlybyaqualied
service provider. Failure to do so could result in
reducedperformanceoftheunit,seriouspersonal
injuryordeath.
WARNING!
Fire hazard
Neverinstallthecontrolboxinareaswith
ammablegases.
ATTENTION
TheOS-3 controlboxisdeliveredwithoutcablesfor
externaleldwiring.
Allinterconnectcables/wiresizeusedshallbe
suppliedbyothersandcomplywithUL,NECandall
othernationalandlocalstandardscodes.
Theglandsusedforinsertingthecableintothe
OS-3 controlboxshouldbeplacedinthebottomof
thecasing.
Thecableshouldttightlyintheglandtoprevent
anymoistureenteringtheinsideoftheOS-3 control
box.
4.1 Unpacking
Checkthattheproductiscomplete.Thepackageshouldcontain:
- OS-3 control box
- doorkey
4.2 Electric connection
ConnecttheOS-3inaccordancewiththeseparatelysupplied
electricaldiagram.
CAUTION!
Electric connection to be executed in accordance
withlocalrequirements.Ensurecompliancewiththe
EMCregulatoryarrangements.
WARNING!
Makesurethemachineissuitableforconnectionto
thelocalmains.Informationabouttheconnection
voltageandfrequencycanbefoundonthe
identicationplate.
ATTENTION
Thethermalrelayshouldbesetaccordingtothe
overloadmentionedontheidenticationplateon
themotor.
4.3 Primary Wiring Procedure
4.3.1 Terminal Block 1
Islocatedinthelowerleft-handcorneroftheOS-3controlbox
andconsistsofincomingpowerelectricalterminalblocksL1,L2,
L3.Itisimportanttonoteonsinglephaseboxes,L3willnotbe
installed.Outgoingpowertothefanmotorviatheoverload
outputlocationsT1,T2,T3onsinglephasecontrolboxestheT3
terminalwillbeoccupiedbyawirelooping“backthrough”the
contactor,thisisnecessaryforproperoperationandshouldnot
bealtered.Groundshouldbelandedonterminalstriponthe
greenandyellowterminalblock,lowvoltagecontrolwiring

00000116183/300421/D OS-3 7
terminalblocks(0,24Vand1through8)andelectricaloverload
usesforprotectionforbothprimary(F1,F2)andsecondary(F3).
NOTE: Primarylinevoltagemustnotbegreaterorlessthan8
%ofratedvoltagelistedonvoltagetap.Forexample,Tap120
volt(110–130voltagerangeisacceptable)forexcessivelylow
linevoltage,abuckboosttransformermayberequired.
(Suppliedbyothers).
4.3.2 Primary Voltage Wiring
Ontherightsideoftheterminalblockistherstterminalblock
markedGND(greenground),hereyouwillconnectyourground
wire(properlysizedperNEC).Inthesecondterminalblock
markedL1,youwillconnectyourrstpowerwire.Inthethird
terminalblockmarkedL2,youwillconnectyoursecondpower
wire.Forthefourthterminalblock(whenapplicable),marked
L3,youwillconnectyourthirdpowerwire.
NOTE: Thelinesupplyvoltagefromyourbuilding,whichwill
supplyyourmotor,shallbeconnecteddirectlytoL1,L2for
singlephaseandL1,L2,andL3for3-phase.Re-checkthatrated
voltagecorrespondswithsupplyvoltagetoavoiddamageto
electricalcomponentsorcontrolwiring.
Table2Aonpage13andTable2Bonpage14showthefan
componentsizingcharts.
Pleaserefertolocalcodesandrequirements,thesewilltake
precedenceoverthesupplierwiringchartatthebackofthis
manual.
4.3.3 Field Power Wiring of Control Box, Safety
Disconnect and Fan Motor
Theprimarywiringoftheelectricalsystemmustberatedforthe
maximumampsandHPratingofthefanmotorloadaswellas
thewiringvoltagedrop,whichiscalculatedforthedistance,you
arerunning.SeePlymoventWiringChartinthebackofthis
manualasaguideforwiring.Itiscriticaltoalwaysfollowlocal
coderequirementsforselectingwireininstanceswherethey
differfromPlymoventpublishedrecommendations.
NOTE: Fieldwiring,powersupplypanelandelectricalsafety
disconnectareprovidedbyothers.Plymoventassumesno
liability for any electrical installation and all national and local
codesandstandardsshouldbefollowed.
4.4 Primary Wiring Procedures (Control Wiring)
4.4.1 Control Voltage Wiring
Theterminalblocks0,24Vand1through8areusedforlow
voltagecontrolwiringofoptionalwirelesscontrolsystem,
remotemountedpressureswitchforstartingfunctions,clean
lterindicatorandtemperatureswitch.Anoptionalremotealarm
relayconnectionisavailableforconnectiontoBuilding
AutomationSystems(BAS).
4.4.2 Pressure Switch / Temperature Switch (engine
start/stop)
Thepressureswitchandoptionaltemperatureswitch,whichis
soldseparately,willbewiredtoterminalblock1and2.Ifmore
thanonepressure/temperatureswitchisutilizedinasystem
theymustbewiredinparalleltoachieveproperoperation.
NOTE: Controlwiressupplyingterminalblock1and2mustbea
minimumof16AWG/1.29mm²,smallerwiresizingwillresultin
improper system operation.
Amomentarymanualpushbuttonstartswitchcanalsobe
placedinparallelinthiscircuitforremotestartingofthesystem.
4.4.3 Remote Alarm (optional)
Terminals 3, 4, and 5 are a relay dry contact connection for a
BuildingAutomationSystem(BAS).Terminalblock3provides
thecommonconnection,terminal4providesanormallyclosed
contact connection and terminal 5 provides a normally open
contact connection.
NOTE: Relay output is a dry contact potential free and will
requireadditionalcontrolequipmentdependingonitsuse.
4.4.4 Pressure Switch (lter alarm)
Anexhaustventilationparticulatelter(suchasthePlymovent
MultiSmokeFilter)maybeprovidedwithanadjustablepressure
indicatorswitch,whichmonitorstheltersusefullife.Terminals
6and7(potentialfree)areutilizedtoconnectandoperatethe
pressureindicatorswitch.Whenthelterbecomesdirty,the
pressureswitchwillsendasignaltothecontrolboxandin-turn
willashtheFanOnLEDindicatorlight,locatedonthefaceof
theOS-3controlpanel,whenthefanmotorisrunning.
Indicatingalterchangeisrequired.
4.5 Transformer Wiring Procedure
4.5.1 Multi-tap Control Transformer
DesignedbyPlymoventtoallowtheeldelectriciantheabilityto
selecttheprimaryvoltageofhischoice.Thisvoltageselection
rangesfrom120voltthrough600voltVAC.Thetransformerhas
beendesignedtooperateinboth50and60Hzenvironments.
NOTE: Primarylinevoltagemustnotbegreaterorlessthan8
%ofratedvoltagelistedonvoltagetap.Forexample,Tap120
volt(110–130voltagevariantacceptable)forlowlinevoltage,
abuckboosttransformermayberequired.(Suppliedbyothers).
4.5.2 Primary Voltage Connection
Onthetoprightsideoftransformeryouwillndaterminalblock
with8pointsofconnection.Commonblackwireisconnectedto
thetopterminalblock(blacktoyellowwire)andwillalways
remaininthispositionregardlessofthevoltageadjustmentthat
youwillbemaking.Thevoltageadjustinggraywireispresetfor
thevoltageordered.Youmayberequiredtorepositionthe
voltageadjustingwiretothelinesupplyvoltagepresentatyour
installation/facility.Forexample,adjustingto120voltline
voltage,movethevoltageadjustingwiretowiretapsecondfrom
thetopofterminalblock(blacktowhite).Viewyellowlabelfor
correctwiretapcolorforeachavailablevoltage.
NOTE: Improperwiringwillresultindamageofotherelectrical
components.Re-checkthatratedvoltagecorrespondswith
supplyvoltagetoavoiddamagetoelectricalcomponents.
Always ensure power is off and all required procedures for
facility(suchaslockouttagout)areproperlyfollowedbefore
makinganyadjustmentstothecontrolsystem.
WARNING!
Procedureswhich,ifnotcarriedoutwiththe
necessarycaution,maydamagetheproductand/or
causeseriouspersonalinjury.

00000116183/300421/D OS-3 8
4.5.3 Secondary Voltage Connection
Ontheleftsideofthetransformeryouwillviewaterminalblock
with2pointsofconnection:oneorangeandonepurple.The
wire taps will produce 24 VAC.
NOTE: Thesecondaryvoltageconnectionsarepresetfromthe
factory,andshallneverbechanged.
4.5.4 Electrical Wiring
Allelectricalwiringwhichincludesprimary,secondaryand
controlwiringmustbedonebyacertied/licensedelectrician
andinaccordancewiththeNEC.
4.6 Pressure Switch Procedure
4.6.1 Pressure Switch
Plymoventhasincorporatedapressureswitch,whichsensesthe
exhaustgaspressuregeneratedbythevehicle.Thisadjustable
pressureswitchallowstheelectricalcontrollertostartthe
operationofthefan.Thepressureswitchhasbeenpresetat0.1”
in.H2Oandiseldadjustable.
4.6.2 Electrical Wiring
Thepressureswitchutilizesaparallelconnectionwithan
optionaltemperatureswitch,whichisconnectedtoterminals1
and2locatedonterminalblock1(TB1).Boththepressureand
thetemperatureswitchwillmaintainanormallyopenposition
whenvehicleisnotinoperation.
NOTE: Electricalwiringprovidingsignaltotemperatureand
pressureswitchmustbe16AWG/1.29mm²wire(minimum)
sizeandshouldnotberanontopofuorescentlightxturesor
withotherwirecablesduetoinducedcurrentandorelectrical
interference.Controlwiringmustbedonebycertied/licensed
electrician.
4.6.3 Pressure Adjustment Procedure
Thepressureswitchallowsforeldadjustmentsbyplacinga
screwdriverintheslottedscrewinthebackoftheswitch.By
turningthedialclockwise(in)youwillincreasethesensitivity
andbyturningthedialcounterclockwise(out)youwilldecrease
thesensitivity.Toresetthepressureswitchadjustmentinthe
eld,withthepoweroff,disconnectthe2lowvoltagewiresand
connectacontinuitymeteracrossthe2terminalsoftheswitch
andslowlyturnadjustingscrewclockwise(in)untilyouget
continuity(contactsclosed),thenturnthescrewcounter
clockwise(out)1completeturn.Thepressuresetting,mayvary
upordowndependingonthevehiclesoutputpressure.To
accuratelyadjustthepressureswitchstartthevehicleandcheck
thatthefanstartsimmediately,turnoffvehicleandtheexhaust
fanshouldrunformaximum5minutes.
NOTE: Ifexhaustfandoesnotstart,adjustthepressureswitch
byturningadjustingscrewclockwise(in)1/8ofaturnand
restartthevehicle.Ifthefanstilldoesnotstartrepeat
procedure.Iffanstartswhenthevehicleisnotrunningdecrease
pressuresettingonpressureswitchbyturningadjustmentscrew
counterclockwise(out)1/4turn.
4.7 Temperature Switch Procedure
4.7.1 Optional Temperature Switch
Plymoventhasincorporatedanoptionaltemperatureswitch,
whichsensestheexhaustgastemperaturegeneratedbythe
vehicle.Thisadjustablebi-metaltemperatureswitchallowsthe
electricalcontrollertomaintaintheoperationofthefanforas
longasthevehicleisrunning.Theadjustmentscalerangesfrom
90°F/30°Cto130°F/55°C,whichallowstheeldinstaller
theabilitytoadjustthetemperaturesetting.
4.7.2 Electrical Wiring
Thetemperatureswitchutilizesaparallelconnectionwiththe
pressureswitch,whichisconnectedtoterminals1and2located
atterminalblock1(TB1).Boththetemperatureandthe
pressureswitchwillmaintainanormallyopenpositionwhen
vehicleisnotinoperation.
NOTE: Electricalwiringprovidingsignaltotemperatureand
pressureswitchmustbe16AWG/1.29mm²wiresizeandshould
notberanontopofuorescentlightxturesorwithotherwire
cables due to induced current and or electrical interference.
Controlwiringmustbedonebycertied/licensedelectrician.
4.7.3 Temperature Adjustment Procedure
Thetemperatureswitchallowsforeldadjustmentbyplacinga
screwdriverintheslotteddialinthecenteroftheswitch.By
turningthedialcounterclockwiseyouwilldecreasethe
temperaturesettingandbyturningthedialclockwiseyouwill
increasethetemperaturesetting.Therecommendedsettingwill
bebetween120°F/49°Cto130°F/55°C.Toaccuratelyadjust
thetemperatureswitchstartthevehicleandallowtorunfor10
minutes,turnoffvehicleandtheexhaustfanshouldrunfor
approximately5to15minutesafterthevehiclehasbeenturned
off.
NOTE:Ifexhaustfancyclesonandoffwhenvehicleisrunning,
itwillbenecessarytoincreasethetimersettinglocatedat
controllercard(seeinstructions).Iffanstartswhenthevehicle
isnotrunning,increasetemperaturesettingontemperature
switch.
4.8 Wireless Control System Procedure
4.8.1 Optional Wireless Control System
TheWirelessTransmitterandReceiverisanoptionalfeature
designedtofacilitateremotelymountingthepressureswitch
and/ortemperatureswitchonthecrabsofaSTRArailsystem
andontheductworksystemoftheSBTAtracksystem.The
receiverincludesanexternalantenna.Thereceiverutilizes
spreadspectrumtechnologyandoffersexcellentelectromagnetic
interference(EMI)tolerance.Unitsaredesignedtoworkwiththe
PlymoventWireless2400MHztransmittersandhasarangeof
500feet.Theseproductswillnotinterferewithorbeaffectedby
Wi-Fisystems.Thelearningreceivercanlearnupto24different
transmitters.Thereceivershalloperateon24VACandbe
mountedinanon-metallicenclosurewithaclearseethroughlid
approximately8’to10’(2.4mto3m)abovethenishedoor
level,directlyabovetheOS-3AutomaticController.
4.8.2 Electrical Wiring Connections
Connecttheredwirelabeled12-24Vtoterminal24Vonterminal
stripTB1,connecttheblackwirelabeledGRNDtoterminal0on
terminalstripTB1,connectthebluewirelabeledCtoterminal1
onterminalstripTB1,connecttheorangewirelabeledNOto
terminal2onterminalstripTB1insideOS-3controlbox.
ForWirelessSystemprogrammingrefertotheWirelessControl
System Product Manual.

00000116183/300421/D OS-3 9
5 MAINTENANCE
TheOS-3requiresnospecicmaintenance.
6 TROUBLESHOOTING
IftheOS-3 does not function correctly, please contact your local
authorizeddealer/technician.
7 SPARE PARTS
PleaserefertoTable1onpage10toviewthespareparts
availablefortheOS-3.
Fig.7.1 Exploded view
• A-F3
• B-Transformer
• C-F1/F2
• D-Contactor
• E-OverloadRelay
• F-AdjustingHoleforTimer
• G-CircuitBoard
• H-Membrane
8 ELECTRICAL DIAGRAM
PleaserefertoFigures8.1-8.4(below)andFigure1onpage
12 to viewtheelectricaldiagramsfortheOS-3.
Table2Aonpage13andTable2Bonpage14showtheFan
ComponentSizingChartsforthreeandonephase.
Fig.8.1 SwitchDetail
Fig.8.2 Terminal Detail
Fig.8.3 System Detail
9 DISPOSAL
Afterlifeoftheproduct,disposeitofinaccordancewithstateor
localregulations.