Toro GDC 200 User manual

Specifications:
• Controlsupto200stationsforthe
Stand-Alonemodel
• Inputpowersupply:
100VAC,50/60Hz
120VAC,50/60Hz
240VAC,50/60Hz
• GDCoutputvoltage:40VDCmax.
• GDCoutputpower:75VAmax.
• Storagetemperature:-22ºF–140ºF(-30ºC–60ºC)
• Operatingtemperature:32ºF–140ºF(0ºC–60ºC)
• CabinetType:Non-corrosive,lockablewallmount,
indoor/outdoorinstallation
• Six1"(25.4mm)conduitopeningsandone11/2"(38mm)conduit
opening
Cabinet Installation
SelectingtheproperinstallationsitefortheGDCisessentialtosafeandreliableoperation.TheGDCfeaturesaweather
resistantcabinetdesignedforindoororoutdoorinstallation.
TheGDCshouldbeinstalledonaverticalwallorothersturdystructurenear
agroundedpowersource.Selectalocationthatshadesthecontrollerduringthe
hottesthoursofthedayandprovidesasmuchprotectionfromdirectsunlight,rain,
windandsnowaspossible.DONOTmountthecontrollerwhereitisexposedto
directsprayfromtheirrigationsystem.
Foreasyoperationandbetterviewofthedisplay,installtheGDCsothatthe
displayisatorslightlybeloweyelevel.
Step 1 – Drilltwopilotholes6"(15.25cm)apartforthetopkeyholesofthe
controllercabinet.
Step 2 – Installthetopscrewsleavingapproximately1/4"(5–6mm)ofexposed
screwtoaccommodatethecabinet.
Ifmountingthecabinetondrywallor
masonry,installtheappropriatetypeofscrew
anchorsorfastenerstoensuresecureinstallation.
Step 3 – Hangthecabinetusingthetopkeyholeslots.
SeeFigure 1.
Step 4 – Openthecabinetdoorandinstallthebottomtwo
screwsto
securethecabinet.
GDC 200 Installation Instructions
Stand-Alone Model
6" (15.25cm)
9 1/8" (23.175cm)
Figure 1

Earth Ground Installation
IMPORTANT!TheGDCsurgeprotectioncomponentscannotproperlyfunctionunlessanefficientpathwaytoearth
groundisprovided.Thegroundpathmustbeasdirectaspossible,withoutsharpbendsandmustnotexceed30Ohm
resistance(whenmeasuredwithanearthgroundresistancedevice).Allelectricalcomponentsthroughouttheirrigationsystem
shouldbegroundedsimilarlytoprovidethesamegroundpotential.
Thefollowinginstructionsdepictoneofseveralacceptableearthgroundingmethods.Duetovariablesinsoilcompositionand
terrain,themethodshownmaynotbesuitableforyourinstallationsite.ContactyourlocalTorodistributorforassistanceand
availabilityoftherequiredearthgroundresistancetestinstrument.
Step 1 – Drivea5/8"x8'(17mmx2.5m)copper-cladsteelrodintowellmoistenedsoilnotlessthan8'(2.5m)ornotmore
than12'(3.7m)fromthecontrollercabinet.Thetopofthegroundrodshouldbeflushwithorbelowgroundlevel,
shouldbeprotectedfromdamageusingavalvebox.SeeFigure 2.
Step 2 – Usinga5/8"(17mm)clampor“Cadweld”fastener,attachan8AWG(8mm2)solidcopperwirenearthetopofthe
groundrod.Avoidingwirebendsoflessthan8"(20.3cm)radiusandmorethan90º,routethewirethroughconduit
andintothecabinet.Securethewiretothecoppergroundlug.
Makesurethesoilsurroundingthegroundrod(s)remainswellmoistenedatalltimes.Theadditionofsome
formofirrigationmayberequiredifthecabinetisinstalledinanon-irrigatedlocation.
Step 3 – Measurethegroundresistancepertheinstructionsprovidedwiththegroundtestinstrument.Areadingof
0.0Ohmisoptimum,upto10Ohmisgoodand11–30Ohmisacceptableinmostcases.Iftheresistance
exceedstheacceptablelimit,additionalgroundrod(s)canbeinstalledatadistanceequaltotwicetheburied
depthofthefirstrod;i.e.,16'(4.9m).Interconnectthegroundrodsusing8AWG(8mm2)solidcopperwireandtest
again.Ifthemeasuredgroundresistancecontinuestoreadabovetheacceptablelimit,contactyourlocalToro
distributorforfurtherassistanceandrecommendations.
Installingaroundvalveboxoverthegroundrodenablesthegroundrodtobeeasilylocatedaswellas
providingaccesstothegroundwireconnection(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 – Turnoffthepoweratthepowersourcelocationandplacethecontroller’spowerswitchtoOFF.Connectand
routetheappropriatesize3-conductorcable(14AWG[2.5mm2]maximum)fromthepowersourcetothecontroller
cabinet.
 Theprovidedpowercableaccessholecanaccommodatea1"(25mm)conduitfitting.Ifconduitisrequired,install
asectionofflexible1"(25mm)electricalconduitfromthepowersourceconduitboxtothecabinet’saccesshole.
Step 2 – Openthecabinetdoorandremovethetworetainingscrewsfromthepowersupplycover.
Step 3 – Stripthepowercablesandsecurethemtotheterminalblock.ReferenceTable 1fortheappropriatetypeofpower
connection.
Step 4 – Reinstallthepowersupplycover.
Step 5 – Applypowertothecontroller.
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 Installation
Thestationdecodermoduleisavailablein1-station,2-station,or4-stationconfiguration.
Thestand-aloneGDCmodelcanhandleupto100stationsperoutputboard.Thesestationscanbeconnectedtotheoutput
boardterminalsinanyconfiguration(25stationsconnectedtoeachofthefourterminalpairsor100stationsconnectedtoone
terminalpair,etc.).Thedecodermodulescanbeconnectedinparallelanywhereonthetwo-wirecommunicationlineconnected
tothestationterminals.Eachstationcanactivateuptotwosolenoids.
Whena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.
Itisrecommendedthatthedecodermodulesareinstalledinanapprovedvalveboxtoprovideeasyaccesstothewiring.
Use3MDBR/Ytowaterproofallconnectors.
Recommended Controller-to-Decoder cable:14AWG(2.5mm2),solidcopper,jacketed2-conductor,directburial.
ThepreferredwiremakeandmodelisthePaigeIrrigationWire,SpecP7350D.
Recommended Decoder-to-Solenoid cable:14AWG(2.5mm2),solidcopper,2-conductor,directburial.Thepreferredwire
makeandmodelisthePaigeIrrigationWire,SpecP7351D.
Burial Depth
TororecommendsthattheController-to-DecoderandDecoder-to-Solenoidcablesshouldhaveaminimumcoverof6"
(150mm).Theirrigationplanmayspecifyadditionaldepthtobeconsistentwiththedepthofmainlineorlateralpipeworkand/
orsoilconditioningproceduressuchasaeration.Installationproceduresmustcomplywithallapplicablelocalandnational
electricalcodes.
•Useonlywireapprovedfordirectburialifinstallingthewiresundergroundwithoutconduit.
•Allfieldwiringsplicesmustbeaccessibletofacilitatetroubleshootingand/orservice.
Step 1 – Routecommunicationcablefromthecontrollertothestationdecodermoduleinstallationlocation.
Themaximumwirelengthbetweenthecontrollerandthedecodermoduleis15,000'(4500m).
Step 2 – Securethecommunicationwirestoterminal1oftheGDCoutputboard.Whitewireontothe1stterminalandblack
wireontothesecondterminal.SeeFigure 4.
Step 3 – Installthedecodermoduleinavalvebox.Recordthedecodermodule’saddressnumberfoundonthesidelabel.
Thisaddressnumberidentifiesthestation(s)thatthedecodermodulecontrol.
Step 4 – Securethecommunicationwirestothedecodermodule’sblackandwhitewires.Connecttheblackcommunication
wiretotheblackdecodermodulewire.Connecttheremainingcommunicationwire(redorwhite)tothewhite
decodermodulewire.Use3MDBR/Ytoproperlywater-proofallwireconnections.
Step 5 – Routeoutputwiresfromthedecodermoduletothesolenoid.
Themaximumwirelengthbetweenthedecodermoduleandthesolenoidis410'(125m).
Step 6– Connectthesolenoidwirestothedecodermodule’sstationwires.Thestationwiresarecolorcodedforeasy
identification.Connectthesolidcolored(red,green,orangeorblue)stationwiretothered/whitesolenoidwire.
Connectthesimilarcolorstationwirewithblackstripetotheblacksolenoidwire.Use3MDBR/Ytoproperlywater-
proofallwireconnections.
Step 7 – Connectanadditionalsolenoidtothestationwireasnecessary.
Eachstationhasamaximumloadoftwosolenoids.
Step 8 – RepeatSteps3–8foradditionaldecodermodules.

Paths – 1 2 3 4
Valve Box
Maximum communication wire
length between the controller
and the farthest decoder is
13,600' (4,145m).
White
Black
White
Black
White
Black
White
Black
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 modules
Station 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 Cable
Thelightningarrester(ToroP/NDEC-SG-LINE)isrequiredtoprotectthedecodermodulefromlightning.Withoutlightning
arresters,thedecodersarevulnerabletolightningdamage.Inorderforthesearrestertodischargelightningenergyefficiently,
theymustbeproperlygrounded.Tobeeffective,aresistanceof10Ohmsorlessmustbeachievedateachearthgroundpoint.
Figure 5illustratesthepropergroundingandwiringofthearrester.
Step 1 – Locatedecoder’spower/communicationwires(blackandwhitewires).
Step 2 – Striptheinsulationfromlightningarrester’swhitewireandconnectittothewhitewiresfromthedecoderand
controller-to-decodercable.Use3MDBR/Ytoproperlywater-proofallwireconnections.(SeeFigure 5.)
Step 3 – Striptheinsulationfromlightningarrester’sblackwireandconnectittotheblackwiresfromthedecoderand
controller-to-decodercable.Use3MDBR/Ytoproperlywater-proofallwireconnections.(SeeFigure 5.)
Step 4 – Connectthelightningarrester’sgroundwiretothegroundrodorplate’swire.Ifthegroundrodorplateisnotpre-
wired,usea10AWGbarecopperwire.(SeeFigure 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 – Ifnecessary,usegroundenhancementmaterial(GEM)toattainaresistanceof10Ohmsorless.
Step 6 – Checkthesystemforproperoperation.
SeeDetailA
D
A
B
C
GolfSprinklerwithDecoder
Detail A
8'(2.5m)(+/–10%)between
thearresterandtheground
rodor3'(+/–10%)distance
betweenarrestorand
groundplate.
LightningArrester
ToroP/N
DEC-SG-LINE
ToroDecoder
Module
Maximumof1000'(300m)ofpopulated
communicationlinebetweengroundpoints
A=500'(150m)Max
B+C=500'(150m)Max
D=1000'(300m)Max
Ensureamaximumof10Ohms
resistanceforeachearthground.
Figure 5

Pressure Sensor Installation
TheGDCcontrollerisdesignedtoacceptbothnormally-openandnormally-closedpressure
sensor.SetthepressuresensormodelinGDCcontrollerpreferencemenu.
Step 1 – Placethecontroller’spowerswitchtoOFF.
Step 2 – Routethepressuresensor’scableintothecontroller.
Step 3 – ConnectthecablewirestothePressureSensorTerminalslabeledAinFigure 6.
Step 4 – Placethecontroller’sswitchtoON.
Rain Sensor Installation
TheGDCcontrollerisdesignedtoacceptbothnormally-openandnormally-closedrainswitch.
SettherainswitchmodelinGDCcontrollerpreferencemenu.
Step 1 – Placethecontroller’spowerswitchtoOFF.
Step 2 – Routetherainsensor’scableintothecontroller.
Step 3 – ConnectthecablewirestotheRainSensorTerminalslabeledBinFigure 6.
Step 4 – Placethecontroller’sswitchtoON.
Master Valve / Pump Relay Installation
GDCprovideswitchterminalstocontrolamastervalveorapumprelayifthesystemrequiresit.
Step 1 – Placethecontroller’spowerswitchtoOFF.
Step 2 – ConnectthePositive/Hotwireofthepowersourcethatcontrolsthemastervalveor
thepumprelaytotheMastervalve/Pumprelayswitchterminal.SeeFigure 6, D.
Step 3 – RouteanotherwirefromtheMasterValve/Pumpterminalandconnectittothe
mastervalvesolenoidorpumprelay.
Step 4 – ConnecttheNegative/Equipmentgroundwireofthepowersourcetothemaster
valvesolenoidorpumprelay.
Step 5 – Placethecontroller’sswitchtoON.
Toro Maintenance Remote (TMR) Receiver Plug Installation
TheGDCcontrollerisfullyccompatiblewiththeTMRremote.SeeTMR’sUser’sGuidefor
operatingandmountinginstructions.
Step 1 – Placethecontroller’spowerswitchtoOFF.
Step 2 – RoutetheTMR’sreceiverplugcableintothecontroller.
Step 3 – ConnecttheRJ45plugintothesocketlabeledEinFigure 6.
Step 4 – Connectthepowerwiresintothe+24VDCterminalslabeledFinFigure 6.
Step 5 – Placethecontroller’sswitchtoON.
Figure 6
A
B
C
DE
F
G
D
A
B
E
F
Figure 7
Figure 8
Figure 9
Figure 10

Tri-Comm Cellular Modem Installation
TheGDCwithTri-CommhastheabilitytoacceptcommandsthroughtheTri-CommcellularModem.
Throughawebinterface,userscanhavetheabilitytooperatethestand-aloneGDCremotely.
Step 1 – Placethecontroller’spowerswitchtoOFF.
Step 2 – Usingthe2nddaughterboardsocket(Figure 6,G)installtheTri-Commmodem.
Step 3 – Securethemodemontothecabinetwithfourretainingscrews.
Step 4 – RoutetheTri-Commantennatotheoutsideofthecabinet.Peeltheantennaadhesiveand
installonthesideofthecabinet.
Step 5 – Placethecontroller’sswitchtoON.
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 Replacement
A3.9VLithiumbattery(P/N363-2200)isinstalledinthetimingmechanismtosustainthecontroller’sclocktimeanddatefor
approximately10-yearswithnoadditionalpowerapplied.
Step 1 – Placethecontroller’spowerswitchtoOFF.
Step 2 – Removetheribboncablefromtherearofthetimingmechanism.
Step 3 – Removetimingmechanism’scircuitboardbypushingtheretainingclipdownwardwhilecarefullypullingthePCB
board.SeeFigure 12.
Step 4 – SecuretheLithiumbatteryintothebatterysocket.SeeFigure 13.
Step 5 – Reattachthecircuitboardtothetimingmechanism.
Step 6 – Securetheribboncablebacktothetimingmechanismsocket.
Step 8 – Placethecontroller’sswitchtoON.
Electromagnetic Compatibility
Domestic: ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaFCCClassAdigitaldevice,pursuant
topart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferencewhen
theequipmentisoperatedinacommercialenvironment.Theequipmentgenerates,uses,andcanradiateradiofrequency
energyand,ifnotinstalledandusedinaccordancewiththeinstructionmanual,maycauseharmfulinterferencetotheradio
communications.Operationinaresidentialareaislikelytocauseharmfulinterferenceinwhichcasetheuserwillberequired
tocorrecttheinterferenceathisownexpense.
International: ThisisaCISPR22ClassAproduct.Inadomesticenvironment,thisproductmaycauseradiointerference,in
whichcasetheusermayberequiredtotakeadequatemeasures.Eachstationscanactivateuptotwosolenoids.
Thisproduct,utilizingaClass2transformertestedtoUL1585,satisfiestherequirementsofaClass2PowerSourceasdefined
intheNFPA70(NEC),Article725.121(A)(3).
©2011TheToroCompany,IrrigationDivision•AnISO-9000-CertifiedFacility FormNumber373-0718rev.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
E
Figure 11
Figure 12 Figure 13