Specifications:• Controlsupto200stationsforthe Stand-Alonemodel
• Inputpowersupply: 100VAC,50/60Hz 120VAC,50/60Hz 240VAC,50/60Hz
• GDCoutputvoltage:40VDCmax.• GDCoutputpower:75VAmax.• Storagetemperature:-22ºF–140ºF(-30ºC–60ºC)• Operatingtemperature:32ºF–140ºF(0ºC–60ºC)• CabinetType:Non-corrosive,lockablewallmount, indoor/outdoorinstallation
• Six1"(25.4mm)conduitopeningsandone11/2"(38mm)conduitopening
Cabinet InstallationSelectingtheproperinstallationsitefortheGDCisessentialtosafeandreliableoperation.TheGDCfeaturesaweatherresistantcabinetdesignedforindoororoutdoorinstallation.TheGDCshouldbeinstalledonaverticalwallorothersturdystructurenear agroundedpowersource.Selectalocationthatshadesthecontrollerduringthehottesthoursofthedayandprovidesasmuchprotectionfromdirectsunlight,rain,windandsnowaspossible.DONOTmountthecontrollerwhereitisexposedtodirectsprayfromtheirrigationsystem.Foreasyoperationandbetterviewofthedisplay,installtheGDCsothatthedisplayisatorslightlybeloweyelevel.
Step 1 – Drilltwopilotholes6"(15.25cm)apartforthetopkeyholesofthecontrollercabinet.
Step 2 – Installthetopscrewsleavingapproximately1/4"(5–6mm)ofexposedscrewtoaccommodatethecabinet.
Ifmountingthecabinetondrywallormasonry,installtheappropriatetypeofscrewanchorsorfastenerstoensuresecureinstallation.
Step 3 – Hangthecabinetusingthetopkeyholeslots. SeeFigure 1.
Step 4 – Openthecabinetdoorandinstallthebottomtwoscrewsto securethecabinet.
GDC 200 Installation InstructionsStand-Alone Model
6" (15.25cm)
9 1/8" (23.175cm)
Figure 1
Earth Ground InstallationIMPORTANT!TheGDCsurgeprotectioncomponentscannotproperlyfunctionunlessanefficientpathwaytoearthgroundisprovided.Thegroundpathmustbeasdirectaspossible,withoutsharpbendsandmustnotexceed30Ohm
resistance(whenmeasuredwithanearthgroundresistancedevice).Allelectricalcomponentsthroughouttheirrigationsystemshouldbegroundedsimilarlytoprovidethesamegroundpotential.Thefollowinginstructionsdepictoneofseveralacceptableearthgroundingmethods.Duetovariablesinsoilcompositionandterrain,themethodshownmaynotbesuitableforyourinstallationsite.ContactyourlocalTorodistributorforassistanceandavailabilityoftherequiredearthgroundresistancetestinstrument.
Step 1 – Drivea5/8"x8'(17mmx2.5m)copper-cladsteelrodintowellmoistenedsoilnotlessthan8'(2.5m)ornotmorethan12'(3.7m)fromthecontrollercabinet.Thetopofthegroundrodshouldbeflushwithorbelowgroundlevel,shouldbeprotectedfromdamageusingavalvebox.SeeFigure 2.
Step 2 – Usinga5/8"(17mm)clampor“Cadweld”fastener,attachan8AWG(8mm2)solidcopperwirenearthetopofthegroundrod.Avoidingwirebendsoflessthan8"(20.3cm)radiusandmorethan90º,routethewirethroughconduitandintothecabinet.Securethewiretothecoppergroundlug.
Makesurethesoilsurroundingthegroundrod(s)remainswellmoistenedatalltimes.Theadditionofsomeformofirrigationmayberequiredifthecabinetisinstalledinanon-irrigatedlocation.
Step 3 – Measurethegroundresistancepertheinstructionsprovidedwiththegroundtestinstrument.Areadingof 0.0Ohmisoptimum,upto10Ohmisgoodand11–30Ohmisacceptableinmostcases.Iftheresistanceexceedstheacceptablelimit,additionalgroundrod(s)canbeinstalledatadistanceequaltotwicetheburieddepthofthefirstrod;i.e.,16'(4.9m).Interconnectthegroundrodsusing8AWG(8mm2)solidcopperwireandtestagain.Ifthemeasuredgroundresistancecontinuestoreadabovetheacceptablelimit,contactyourlocalTorodistributorforfurtherassistanceandrecommendations.
Installingaroundvalveboxoverthegroundrodenablesthegroundrodtobeeasilylocatedaswellasprovidingaccesstothegroundwireconnection(s).
Ground Lug
Valve Box 8 AWG (8mm2) Solid Copper Ground Wire
Copper Clad Ground Rod
Ground Wire To Additional Rod(s) (Optional)
8'–12'(2.4m – 3.7m)
8" (20.3cm) Minimum Radius
90º Minimum Angle
Figure 2
Power Source Installation
Step 1 – Turnoffthepoweratthepowersourcelocationandplacethecontroller’spowerswitchtoOFF.Connectandroutetheappropriatesize3-conductorcable(14AWG[2.5mm2]maximum)fromthepowersourcetothecontrollercabinet.
Theprovidedpowercableaccessholecanaccommodatea1"(25mm)conduitfitting.Ifconduitisrequired,installasectionofflexible1"(25mm)electricalconduitfromthepowersourceconduitboxtothecabinet’saccesshole.
Step 2 – Openthecabinetdoorandremovethetworetainingscrewsfromthepowersupplycover.Step 3 – Stripthepowercablesandsecurethemtotheterminalblock.ReferenceTable 1fortheappropriatetypeofpower
connection.Step 4 – Reinstallthepowersupplycover.Step 5 – Applypowertothecontroller.
WARNING! AC POWER WIRING MUST BE INSTALLED AND CONNECTED BY QUALIFIED PERSONNEL ONLY. ALL ELECTRICAL COMPONENTS AND INSTALLATION PROCEDURES MUST COMPLY WITH ALL APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES. SOME CODES MAY REQUIRE A MEANS
OF DISCONNECTION FROM THE AC POWER SOURCE, INSTALLED IN THE FIXED WIRING, HAVING A CONTACT SEPARATION OF AT LEAST 3mm IN THE LINE AND NEUTRAL POLES. ENSURE THE AC POWER SOURCE IS OFF PRIOR TO SERVICING. FAILURE TO COMPLY MAY RESULT IN SERIOUS INJURY DUE TO ELECTRICAL SHOCK HAZARD.
Flexible Conduit (Optional)
Figure 3
Line
Neutral
Equipment Ground
See Table 1
Station Decoder InstallationThestationdecodermoduleisavailablein1-station,2-station,or4-stationconfiguration.Thestand-aloneGDCmodelcanhandleupto100stationsperoutputboard.Thesestationscanbeconnectedtotheoutputboardterminalsinanyconfiguration(25stationsconnectedtoeachofthefourterminalpairsor100stationsconnectedtooneterminalpair,etc.).Thedecodermodulescanbeconnectedinparallelanywhereonthetwo-wirecommunicationlineconnectedtothestationterminals.Eachstationcanactivateuptotwosolenoids.
WhenaTri-CommCellularmodemisinstalledinthe2ndoutputboardposition,themaximumnumberofstationsonthe1stoutputboardisincreasedupto200stations.Itisrecommendedthatthedecodermodulesareinstalledinanapprovedvalveboxtoprovideeasyaccesstothewiring. Use3MDBR/Ytowaterproofallconnectors.Recommended Controller-to-Decoder cable:14AWG(2.5mm2),solidcopper,jacketed2-conductor,directburial. ThepreferredwiremakeandmodelisthePaigeIrrigationWire,SpecP7350D.Recommended Decoder-to-Solenoid cable:14AWG(2.5mm2),solidcopper,2-conductor,directburial.ThepreferredwiremakeandmodelisthePaigeIrrigationWire,SpecP7351D.
Burial DepthTororecommendsthattheController-to-DecoderandDecoder-to-Solenoidcablesshouldhaveaminimumcoverof6"(150mm).Theirrigationplanmayspecifyadditionaldepthtobeconsistentwiththedepthofmainlineorlateralpipeworkand/orsoilconditioningproceduressuchasaeration.Installationproceduresmustcomplywithallapplicablelocalandnationalelectricalcodes.•Useonlywireapprovedfordirectburialifinstallingthewiresundergroundwithoutconduit.•Allfieldwiringsplicesmustbeaccessibletofacilitatetroubleshootingand/orservice.
Step 1 – Routecommunicationcablefromthecontrollertothestationdecodermoduleinstallationlocation. Themaximumwirelengthbetweenthecontrollerandthedecodermoduleis15,000'(4500m).Step 2 – Securethecommunicationwirestoterminal1oftheGDCoutputboard.Whitewireontothe1stterminalandblack
wireontothesecondterminal.SeeFigure 4.Step 3 – Installthedecodermoduleinavalvebox.Recordthedecodermodule’saddressnumberfoundonthesidelabel.
Thisaddressnumberidentifiesthestation(s)thatthedecodermodulecontrol.Step 4 – Securethecommunicationwirestothedecodermodule’sblackandwhitewires.Connecttheblackcommunication
wiretotheblackdecodermodulewire.Connecttheremainingcommunicationwire(redorwhite)tothewhitedecodermodulewire.Use3MDBR/Ytoproperlywater-proofallwireconnections.
Step 5 – Routeoutputwiresfromthedecodermoduletothesolenoid. Themaximumwirelengthbetweenthedecodermoduleandthesolenoidis410'(125m).Step 6– Connectthesolenoidwirestothedecodermodule’sstationwires.Thestationwiresarecolorcodedforeasy
identification.Connectthesolidcolored(red,green,orangeorblue)stationwiretothered/whitesolenoidwire.Connectthesimilarcolorstationwirewithblackstripetotheblacksolenoidwire.Use3MDBR/Ytoproperlywater-proofallwireconnections.
Step 7 – Connectanadditionalsolenoidtothestationwireasnecessary. Eachstationhasamaximumloadoftwosolenoids.Step 8 – RepeatSteps3–8foradditionaldecodermodules.
Paths – 1 2 3 4
Valve Box
Maximum communication wire length between the controller and the farthest decoder is 13,600' (4,145m).
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The maximum communication wire length between the decoder module and the solenoid is 410' (125m).Recommended Cable for Decoder-to-Solenoid is the Paige® P7351D, 14 AWG, Solid Copper, 2-Conductor, Direct Burial cable.
To easily identify stations for troubleshooting, install wires with the same color code as the station wires.
Output Board
White Power/Communication Wire Black Power/Communication Wire
Station 1 Solid Red Station Wire - Connect to the Red/White solenoid wire Red with Black Stripe Station Wire - Connect to the Black solenoid wire
Station 2 Solid Green Station Wire - Connect to the Red/White solenoid wire Green with Black Stripe Station Wire - Connect to the Black solenoid wire
Station 3 Solid Orange Station Wire - Connect to the Red/White solenoid wire Orange with Black Stripe Station Wire - Connect to the Black solenoid wire
Station 4 Solid Blue Station Wire - Connect to the Red/White solenoid wire Blue with Black Stripe Station Wire - Connect to the Black solenoid wire
Each station can activate up to two DC Latching Solenoids.
Out to additional decoder modulesStation Wires
The GDC output board can accommodate up to 100 stations- . The decoder modules can be connected in any configuration using the four output paths.
1-Station Decoder Module
When possible, install the decoder module in a valve box for ease of service.
DC Latching Solenoid
Red
Black
Recommended Cable for Controller-to-Decoder is the Paige® P7350D, 14 AWG, Solid Copper, Jacketed 2-Conductor, Direct Burial cable.
Figure 4
Grounding Communication CableThelightningarrester(ToroP/NDEC-SG-LINE)isrequiredtoprotectthedecodermodulefromlightning.Withoutlightningarresters,thedecodersarevulnerabletolightningdamage.Inorderforthesearrestertodischargelightningenergyefficiently,theymustbeproperlygrounded.Tobeeffective,aresistanceof10Ohmsorlessmustbeachievedateachearthgroundpoint.Figure 5illustratesthepropergroundingandwiringofthearrester.
Step 1 – Locatedecoder’spower/communicationwires(blackandwhitewires).Step 2 – Striptheinsulationfromlightningarrester’swhitewireandconnectittothewhitewiresfromthedecoderand
controller-to-decodercable.Use3MDBR/Ytoproperlywater-proofallwireconnections.(SeeFigure 5.)Step 3 – Striptheinsulationfromlightningarrester’sblackwireandconnectittotheblackwiresfromthedecoderand
controller-to-decodercable.Use3MDBR/Ytoproperlywater-proofallwireconnections.(SeeFigure 5.)Step 4 – Connectthelightningarrester’sgroundwiretothegroundrodorplate’swire.Ifthegroundrodorplateisnotpre-
wired,usea10AWGbarecopperwire.(SeeFigure 5.)IMPORTANT! If using a ground rod, verify that the straight line distance between the lightning arrester/decoders and the ground rod is 8' (2.5m) +/– 10%. If using a 3' (1m) ground plate, the straight line distance should be 3' (1m) +/– 10%.
Step 5 – Ifnecessary,usegroundenhancementmaterial(GEM)toattainaresistanceof10Ohmsorless.Step 6 – Checkthesystemforproperoperation.
SeeDetailA
D
A
B
C
GolfSprinklerwithDecoder
Detail A
8'(2.5m)(+/–10%)betweenthearresterandthegroundrodor3'(+/–10%)distance
betweenarrestorandgroundplate.
LightningArrester ToroP/N
DEC-SG-LINE
ToroDecoder Module
Maximumof1000'(300m)ofpopulatedcommunicationlinebetweengroundpoints
A=500'(150m)MaxB+C=500'(150m)MaxD=1000'(300m)Max
Ensureamaximumof10Ohmsresistanceforeachearthground.
Figure 5
Pressure Sensor InstallationTheGDCcontrollerisdesignedtoacceptbothnormally-openandnormally-closedpressuresensor.SetthepressuresensormodelinGDCcontrollerpreferencemenu.
Step 1 – Placethecontroller’spowerswitchtoOFF.Step 2 – Routethepressuresensor’scableintothecontroller.Step 3 – ConnectthecablewirestothePressureSensorTerminalslabeledAinFigure 6.Step 4 – Placethecontroller’sswitchtoON.
Rain Sensor InstallationTheGDCcontrollerisdesignedtoacceptbothnormally-openandnormally-closedrainswitch.SettherainswitchmodelinGDCcontrollerpreferencemenu.
Step 1 – Placethecontroller’spowerswitchtoOFF.Step 2 – Routetherainsensor’scableintothecontroller.Step 3 – ConnectthecablewirestotheRainSensorTerminalslabeledBinFigure 6.Step 4 – Placethecontroller’sswitchtoON.
Master Valve / Pump Relay InstallationGDCprovideswitchterminalstocontrolamastervalveorapumprelayifthesystemrequiresit.
Step 1 – Placethecontroller’spowerswitchtoOFF.Step 2 – ConnectthePositive/Hotwireofthepowersourcethatcontrolsthemastervalveor
thepumprelaytotheMastervalve/Pumprelayswitchterminal.SeeFigure 6, D.Step 3 – RouteanotherwirefromtheMasterValve/Pumpterminalandconnectittothe
mastervalvesolenoidorpumprelay.Step 4 – ConnecttheNegative/Equipmentgroundwireofthepowersourcetothemaster
valvesolenoidorpumprelay.Step 5 – Placethecontroller’sswitchtoON.
Toro Maintenance Remote (TMR) Receiver Plug InstallationTheGDCcontrollerisfullyccompatiblewiththeTMRremote.SeeTMR’sUser’sGuideforoperatingandmountinginstructions.
Step 1 – Placethecontroller’spowerswitchtoOFF.Step 2 – RoutetheTMR’sreceiverplugcableintothecontroller.Step 3 – ConnecttheRJ45plugintothesocketlabeledEinFigure 6.Step 4 – Connectthepowerwiresintothe+24VDCterminalslabeledFinFigure 6.Step 5 – Placethecontroller’sswitchtoON.
Figure 6
AB
C
DE
F
G
D
A
B
E
F
Figure 7
Figure 8
Figure 9
Figure 10
Tri-Comm Cellular Modem InstallationTheGDCwithTri-CommhastheabilitytoacceptcommandsthroughtheTri-CommcellularModem.Throughawebinterface,userscanhavetheabilitytooperatethestand-aloneGDCremotely.
Step 1 – Placethecontroller’spowerswitchtoOFF.Step 2 – Usingthe2nddaughterboardsocket(Figure 6,G)installtheTri-Commmodem.Step 3 – Securethemodemontothecabinetwithfourretainingscrews.Step 4 – RoutetheTri-Commantennatotheoutsideofthecabinet.Peeltheantennaadhesiveand
installonthesideofthecabinet.Step 5 – Placethecontroller’sswitchtoON.
When the Tri-Comm Cellular modem is installed in the 2nd output board position, the maximum number of stations on the 1st output board is increased up to 200 stations.
Lithium Battery ReplacementA3.9VLithiumbattery(P/N363-2200)isinstalledinthetimingmechanismtosustainthecontroller’sclocktimeanddateforapproximately10-yearswithnoadditionalpowerapplied.
Step 1 – Placethecontroller’spowerswitchtoOFF.Step 2 – Removetheribboncablefromtherearofthetimingmechanism.Step 3 – Removetimingmechanism’scircuitboardbypushingtheretainingclipdownwardwhilecarefullypullingthePCB
board.SeeFigure 12.Step 4 – SecuretheLithiumbatteryintothebatterysocket.SeeFigure 13.Step 5 – Reattachthecircuitboardtothetimingmechanism.Step 6 – Securetheribboncablebacktothetimingmechanismsocket.Step 8 – Placethecontroller’sswitchtoON.
Electromagnetic CompatibilityDomestic: ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaFCCClassAdigitaldevice,pursuanttopart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferencewhentheequipmentisoperatedinacommercialenvironment.Theequipmentgenerates,uses,andcanradiateradiofrequencyenergyand,ifnotinstalledandusedinaccordancewiththeinstructionmanual,maycauseharmfulinterferencetotheradiocommunications.Operationinaresidentialareaislikelytocauseharmfulinterferenceinwhichcasetheuserwillberequiredtocorrecttheinterferenceathisownexpense.International: ThisisaCISPR22ClassAproduct.Inadomesticenvironment,thisproductmaycauseradiointerference,inwhichcasetheusermayberequiredtotakeadequatemeasures.Eachstationscanactivateuptotwosolenoids.Thisproduct,utilizingaClass2transformertestedtoUL1585,satisfiestherequirementsofaClass2PowerSourceasdefinedintheNFPA70(NEC),Article725.121(A)(3).
©2011TheToroCompany,IrrigationDivision•AnISO-9000-CertifiedFacility FormNumber373-0718rev.A
WARNING! DANGER OF EXPLOSION IF BATTERY IS INSTALLED INCORRECTLY. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE OF BATTERY. ALWAYS DISPOSE OF USED BATTERIES ACCORDING TO THE MANUFACTURER’S INSTRUCTIONS.
Push Retaining Clip to Release the PCB
Disconnect the Ribbon Cable
EFigure 11
Figure 12 Figure 13
