Xantrex Technology GT3.0 owner manual Wiring the Inverter

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3 Wiring the Inverter

Chapter 3, “Wiring the Inverter”, provides procedures for making DC and AC wiring connections, and grounding the GT Inverter and the PV array. Instructions for wiring inverters in parallel are also provided.

The topics in this chapter are organized as follows:

•“Accessing the Wiring Terminals” on page 3–2

•“Connecting the DC Wiring” on page 3–4

•“Connecting the AC Wiring” on page 3–7

•“Connecting Inverters in Parallel” on page 3–10.

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Contents Xantrex Grid Tie Solar Inverter Page Xantrex Grid Tie Solar Inverter Date and Revision Audience ScopeOrganization Abbreviations and Acronyms Conventions UsedRelated Information Page Important Safety Instructions FCC Information to the User Regulatory ComplianceTo locate the firmware version number Verification Test Verification and Commissioning TestPurpose Commissioning TestPage Contents Monitoring the Inverter Wiring the InverterMaintenance and Troubleshooting Starting the InverterWarranty and Return Information SpecificationsIndex Xiv Figures Xvi Tables Xviii Introduction Xantrex GT Inverter About the Xantrex Grid Tie Solar InverterMppt Standard Features2Main Features of the GT Inverter Optional Features3Safety and Data Label Locations Safety and StandardsRemovable Components Wiring Box standard on North American modelsOptional Heat Sink Cover and Fan 1GT Inverter Models Model ConfigurationsGT3.0-aa 2-bb-230 Installation Multiple Inverter Installations Installation OptionsPlanning the Installation Single Inverter InstallationMultiple Inverter Installation Single Inverter InstallationInverter Location PV Array Requirements Equipment and Installation RecommendationsGeneral Recommendations Voltage and Mppt Requirements Voltage Effect of Array Voltage Inverter Mode1MPPT Operational Window Planning the Installation AC Grounding Grounding RequirementsLong Distance Grounding Lightning Protection2Basic Grounding Overview Xantrex GT Inverter Wiring Box3Long Distance Grounding Overview 4Grounding With Extra Lightning Protection Overview Routing the WiresPlanning DC Wire Routing Planning AC Wire RoutingAC Circuit Breaker Requirements Preparing for the InstallationWiring Circuit Breakers and Disconnect SwitchEquipment Needed AC/DC Disconnect SwitchGround Fault Fuse Other Materials NeededOverview Mounting the InverterPreparing to Mount the Unit Dimensions and Knockout LocationsKnockout Preparation 7Dimensions of GT Inverter and Knockout Locations Installing the Mounting Bracket2Inverter Clearance Requirements Clearance RequirementsLocation Minimum Clearance Surfaces for Mounting Mounting on Poles or Rails To mount the unit using polesGround Floor To mount the GT Inverter to wallboard, siding, or concrete Mounting on Wallboard, Siding or ConcreteMounting a Single Inverter Mounting the Inverter on the BracketTo mount the inverter on the mounting bracket Installing the Fan Assembly Installing AccessoriesMounting Multiple Inverters in Parallel 12Attaching the fan assembly To attach the fan assembly to the inverter13Location of Fan Connector To connect the fan wiresTo install the heat sink cover on the inverter Installing the Heat Sink CoverTo remove the heat sink cover from the inverter Wiring the Inverter To remove the wiring box cover Accessing the Wiring Terminals2AC and DC Terminal Block Location in the Wiring Box 3AC/DC Disconnect Switch Positions Connecting the DC Wiring1Torque Values for Wires To wire the PV array to GT InverterWire Size Torque 4DC Connections for Grounded PV Array Xantrex GT Inverter Wiring BoxConnecting the AC Wiring To wire the main utility service panel to the GT Inverter Xantrex GT InverterService Panel Wiring Box 5AC Connections from GT Inverter to Utility Service PanelDC and AC Wiring for Inverters in Parallel Connecting Inverters in ParallelTo wire the PV array to GT Inverters in parallel 6Parallel GT Inverter DC and AC Wiring Xanbus Network Technology Communications Wiring for Inverters in ParallelMale Network Terminator 9Xanbus RJ45 Ports in the GT Inverter Wiring BoxConductor Name CAT 5 Cable Insulation Color RJ45 Connector Requirements2T568A Standard Wiring Cabling RequirementsPurchasing Network Components Guidelines for Routing the Network Cables3Network Components and Part Numbers Wiring the Inverter 11Communications Wiring for GT Inverters in Parallel Page Starting the Inverter To check the PV array DC voltage Startup ProcedureChecking the PV Array DC Voltage Checking the AC Utility VoltageTo replace the wiring box cover Replacing the Wiring Box CoverTo replace the front panel cover To start up the inverter Starting up the GT InverterMonitoring the Inverter 1Front Panel LCD Location Monitoring the Front Panel DisplayDisplay Duration Description Startup ModeFront Panel Display Screens and What They Mean 1Startup Screens on GT Inverter Front Panel DisplayDisplay 2Normal Operation Default ScreenTo view more Normal Operation information 3Normal Operation Screens for All GT Inverter UnitsMultiple Unit System Offline Mode5Offline Mode Default Display To view unit-specific screens in a multiple unit system25kWh Fault ModeOffline Mode Screens for All GT Inverter Units Multiple Unit8Fault Message Screens VoltageFaultSpecial Screens Additional Fault Mode ScreensDisplay Description 11Status Indicator LEDs Status Indicator Lights10Special Message Screens LEDonMeansGreen LED Maintenance PV Array Factors Factors Affecting GT Inverter PerformanceReplacing Parts Performing General MaintenanceOther Factors To replace a ground fault protection fuse Replacing the Ground Fault Protection Fuse1Location of Fuse, Front Panel Cover Removed Replacing the InverterTo remove the inverter from the wiring box To replace the inverter on the wiring box 2Inverter and Wiring Box Sections1Troubleshooting the GT Inverter Identifying Error/Fault Conditions and SolutionsSpecifications GT3.0 European Electrical SpecificationsInput OutputOutput Power Versus Ambient Temperature Adjustable Disconnect SettingsAdjustment Range Setting Figure A-2Typical Efficiency EfficiencyMechanical Specifications Environmental SpecificationsUser Display GT Fan Kit includes fan assembly and heat sink cover AccessoriesWarranty Warranty and Return InformationProduct DisclaimerExclusions Return Procedure Return Material Authorization PolicyOut of Warranty Service Inverter Details Information About Your SystemPV Details Index Port 3-13, 5-7 Torquing 3-5, 3-10 wire sizes IX-4 Page Xantrex Technology Inc