Xantrex Technology GT3.0 About the Xantrex Grid Tie Solar Inverter, Xantrex GT Inverter

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Introduction

About the Xantrex Grid Tie Solar Inverter

The Xantrex Grid Tie Solar Inverter (GT Inverter) is designed to convert solar electric (photovoltaic or PV) power into utility-grade electricity that can be used by the home or sold to the local power company.

Installing the GT Inverter consists of mounting it to the wall and connecting the DC input to a PV array and the AC output to the utility. See Figure 1-1 for a simple diagram of a typical installation.

In order to operate, the GT Inverter must have grid power available and connected. It will not provide backup power if the AC grid fails.

Photovoltaic (PV)

Panels - PV Array

Harvested

solar energy

Utility

Meter

Utility Grid

Surplus power

routed to Utility Grid

Power routed

DC converted to AC

to loads

Grid Tie Inverter

Main Utility

Service Panel

Xantrex
GT Inverter	Loads

Figure 1-1 Basic System Overview

1–2	975-0131-01-01

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Contents Xantrex Grid Tie Solar Inverter Page Xantrex Grid Tie Solar Inverter Date and Revision Audience ScopeOrganization Conventions Used Abbreviations and AcronymsRelated Information Page Important Safety Instructions FCC Information to the User Regulatory ComplianceTo locate the firmware version number Commissioning Test Verification and Commissioning TestPurpose Verification TestPage Contents Starting the Inverter Wiring the InverterMaintenance and Troubleshooting Monitoring the InverterWarranty and Return Information SpecificationsIndex Xiv Figures Xvi Tables Xviii Introduction About the Xantrex Grid Tie Solar Inverter Xantrex GT InverterStandard Features MpptOptional Features 2Main Features of the GT InverterSafety and Standards 3Safety and Data Label LocationsWiring Box standard on North American models Removable ComponentsOptional Heat Sink Cover and Fan 1GT Inverter Models Model ConfigurationsGT3.0-aa 2-bb-230 Installation Single Inverter Installation Installation OptionsPlanning the Installation Multiple Inverter InstallationsSingle Inverter Installation Multiple 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 Lightning Protection Grounding RequirementsLong Distance Grounding AC GroundingXantrex GT Inverter Wiring Box 2Basic Grounding Overview3Long Distance Grounding Overview Routing the Wires 4Grounding With Extra Lightning Protection OverviewPlanning AC Wire Routing Planning DC Wire RoutingCircuit Breakers and Disconnect Switch Preparing for the InstallationWiring AC Circuit Breaker RequirementsOther Materials Needed AC/DC Disconnect SwitchGround Fault Fuse Equipment NeededMounting the Inverter OverviewPreparing to Mount the Unit Dimensions and Knockout LocationsKnockout Preparation Installing the Mounting Bracket 7Dimensions of GT Inverter and Knockout Locations2Inverter Clearance Requirements Clearance RequirementsLocation Minimum Clearance Surfaces for Mounting Mounting on Poles or Rails To mount the unit using polesGround Floor Mounting on Wallboard, Siding or Concrete To mount the GT Inverter to 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 To attach the fan assembly to the inverter 12Attaching the fan assemblyTo connect the fan wires 13Location of Fan ConnectorTo install the heat sink cover on the inverter Installing the Heat Sink CoverTo remove the heat sink cover from the inverter Wiring the Inverter Accessing the Wiring Terminals To remove the wiring box cover2AC and DC Terminal Block Location in the Wiring Box Connecting the DC Wiring 3AC/DC Disconnect Switch Positions1Torque Values for Wires To wire the PV array to GT InverterWire Size Torque Xantrex GT Inverter Wiring Box 4DC Connections for Grounded PV ArrayConnecting the AC Wiring To wire the main utility service panel to the GT Inverter 5AC Connections from GT Inverter to Utility Service Panel Xantrex GT InverterService Panel Wiring BoxDC 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 Communications Wiring for Inverters in Parallel Xanbus Network Technology9Xanbus RJ45 Ports in the GT Inverter Wiring Box Male Network TerminatorCabling Requirements RJ45 Connector Requirements2T568A Standard Wiring Conductor Name CAT 5 Cable Insulation ColorPurchasing 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 Checking the AC Utility Voltage Startup ProcedureChecking the PV Array DC Voltage To check the PV array DC voltageTo replace the wiring box cover Replacing the Wiring Box CoverTo replace the front panel cover Starting up the GT Inverter To start up the inverterMonitoring the Inverter Monitoring the Front Panel Display 1Front Panel LCD Location1Startup Screens on GT Inverter Front Panel Display Startup ModeFront Panel Display Screens and What They Mean Display Duration Description3Normal Operation Screens for All GT Inverter Units 2Normal Operation Default ScreenTo view more Normal Operation information DisplayTo view unit-specific screens in a multiple unit system Offline Mode5Offline Mode Default Display Multiple Unit SystemMultiple Unit Fault ModeOffline Mode Screens for All GT Inverter Units 25kWhVoltageFault 8Fault Message ScreensSpecial Screens Additional Fault Mode ScreensDisplay Description 11Status Indicator LEDs Status Indicator Lights10Special Message Screens LEDonMeansGreen LED Maintenance Factors Affecting GT Inverter Performance PV Array FactorsReplacing Parts Performing General MaintenanceOther Factors Replacing the Ground Fault Protection Fuse To replace a ground fault protection fuseReplacing the Inverter 1Location of Fuse, Front Panel Cover RemovedTo remove the inverter from the wiring box 2Inverter and Wiring Box Sections To replace the inverter on the wiring boxIdentifying Error/Fault Conditions and Solutions 1Troubleshooting the GT InverterSpecifications Output Electrical SpecificationsInput GT3.0 EuropeanOutput Power Versus Ambient Temperature Adjustable Disconnect SettingsAdjustment Range Setting Efficiency Figure A-2Typical EfficiencyMechanical Specifications Environmental SpecificationsUser Display Accessories GT Fan Kit includes fan assembly and heat sink coverWarranty and Return Information WarrantyProduct 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