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First Solar 7 Series User Manual

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REV 1.0
First Solar Series 7 FT1 Module - USER GUIDE
MPD-00810-07-IN

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  • Page 1 REV 1.0 First Solar Series 7 FT1 Module - USER GUIDE MPD-00810-07-IN...
  • Page 2 First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR i of 22 First Solar and the First Solar logo are trademarks of First Solar, Inc., registered in the U.S. and other countries. Series 7 and Series 7 FT1 are trademarks of First Solar, Inc. NOTICE First Solar reserves the right to make changes in solar module design and/or specifications at any time without notice.

  • Page 3: Table Of Contents

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR ii of 22 TABLE OF CONTENTS INTRODUCTION SAFETY REGULATORY COMPLIANCE PRODUCT IDENTIFICATION & RATINGS 4.1 PRODUCT IDENTIFICATION & RATINGS 4.2 SYSTEM DERATING FACTORS HANDLING & STORAGE 5.1 HANDLING & STORAGE MECHANICAL SPECIFICATIONS INSTALLATION &...

  • Page 4: Introduction

    User Guide. Read this User Guide thoroughly before beginning any work related to installation, operation, or maintenance. Please refer to your First Solar Module Warranty Terms & Conditions for module warranty terms and product return policies. Failure to follow this User Guide may void your warranty.

  • Page 5: Safety

    All instructions and safety information should be read and understood before attempting to handle, install, or electrically connect First Solar modules. Failure to follow safety, installation, and handling instructions may result in injury. Only qualified personnel should install, operate, or maintain PV modules or systems.
  • Page 6 DANGER Reverse currents higher than the rated values for a First Solar module, may result in module failure, including module breakage due to RCOL. Extreme and continuous RCOL conditions may cause a fire or create electrical shock hazards. To avoid RCOL: Maintain equivalent voltage in parallel strings by installing an equal number of modules ►...

  • Page 7: Regulatory Compliance

    REGULATORY COMPLIANCE It is the responsibility of the installer and/or system integrator to ensure compliance with all local structural and electrical codes, which may be applicable to the installation and use of First Solar Series 7 FT1 modules. Series 7 FT1 modules are tested and certified per IEC 61730-1/IEC 61730-2 and meet Class II requirements for 1500 VDC systems.

  • Page 8: Product Identification & Ratings

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 5 of 22 PRODUCT IDENTIFICATION & RATINGS 4.1 PRODUCT IDENTIFICATION & RATINGS Each module is equipped with a product label on the back and laser-etched identification on the front glass.

  • Page 9: System Derating Factors

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 6 of 22 Table 2: Temperature Characteristics TEMPERATURE CHARACTERISTICS Module Operating Temperature Range (°C) -40 to +85 Temperature Coefficient of P -0.32%/°C (Temperature Range: 25°C to 75°C) Temperature Coefficient of V -0.28%/°C...

  • Page 10: Handling & Storage

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 7 of 22 HANDLING & STORAGE 5.1 HANDLING & STORAGE When handling packs using forklifts or other mechanical aids, ensure uniform pack support, and the forks fully extend under the pallet. Packs can be lifted from either the short or long side of the pallet. Packs must not be stacked in the field or transported stacked.

  • Page 11: Mechanical Specifications

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 8 of 22 MECHANICAL SPECIFICATIONS Table 3: Module Mechanical Specifications SPECIFICATION Series 7 FT1 (FS-7XXXA-FT1) Module Weight 36.8 kg ± 3.5 kg (81.1 lbs ± 7.7 lbs) Height 34.75 mm (1.37 in) Length 2300 mm ±...

  • Page 12: Installation & Mounting

    For installation in corrosion areas in C4 (as defined by ISO9224) or greater, written approval must be obtained from First Solar. First Solar is not responsible for bonding failure, breakage, damage, wear, corrosion, or module performance issues that are deemed to be caused by design or installation practices that do not comply with this User Guide.
  • Page 13 User Guide (Such as - asymmetric mounting, higher load ratings, alternative clamp geometry, etc.) may be permitted, but require evaluation by First Solar (technicalsupport@firstsolar.com). First Solar reserves the right to reasonable access to validate proper installation.

  • Page 14: Backrail Mounting

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 11 of 22 7.3 BACKRAIL MOUNTING Series 7 FT1 module back rails include 4 mounting locations that feature M8 Rivet nuts embedded into the module mounting rail. Utilizing a 20mm long bolt with M8X1.25 thread the module can be secured to the mounting structure.

  • Page 15: Module Orientation

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 12 of 22 7.4 MODULE ORIENTATION PV performance modeling software, such as PlantPredict (http://www.plantpredict.com), should be used to determine the optimum orientation and tilt angle for each location. Mount modules in portrait orientation for applications where row-to-row shading could occur. Landscape orientation is permitted only in flat mount applications where the module long edge is not completely shaded and when compliant with Section 7.5 Module Shading Considerations.

  • Page 16: Module Shading Considerations

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 13 of 22 7.5 MODULE SHADING CONSIDERATIONS Specific shading patterns can cause damage to module cells due to the creation of localized areas of reverse bias. Reverse bias is generated by one or more series-connected cells being shaded while the rest of the cells are fully illuminated.

  • Page 17: Wire Management

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 14 of 22 7.6 WIRE MANAGEMENT All wire management shall comply with the applicable IEC codes and standards for maintaining and managing wires, as well as any applicable local requirements determined by local authorities having jurisdiction.

  • Page 18: Electrical Interconnection

    Module-to-module and module-to-harness interconnection must utilize the same manufacturer and type of connectors. First Solar cannot guarantee that connectors from different manufacturers or type of connectors will be mateable. Any damage to the module resulting from any such interconnection will not be covered by the First Solar module warranty.

  • Page 19: Inverter Compatibility

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 16 of 22 Wiring harnesses are recommended in system designs. The shorter string size and low string current of Series 7 FT1 modules make it possible to connect multiple strings together in parallel and return a single pair of DC cables to the combiner box or string inverter.

  • Page 20: Grounding Method

    17 of 22 7.9 GROUNDING METHOD First Solar recommends Series 7 FT1 modules be used in negative-grounded systems. Modules must not be subjected to negative voltage bias conditions that can occur in voltage floating or bi-polar systems (subjecting modules to conditions that could drive potential induced degradation). If string inverters or other...

  • Page 21: Maintenance

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 18 of 22 MAINTENANCE 8.1 MAINTENANCE Only qualified personnel should perform maintenance on PV systems. Maintenance (cleaning, electrical inspection, etc.) may pose a risk of electrical shock, injury, or module damage.

  • Page 22: Module Cleaning Guidance

    First Solar does not warrant against breakage, damage, wear, or module Important performance issues that are determined to be caused by module cleaning.
  • Page 23 Cleaning solutions vary in design and size and can affect the load dispersed onto the modules. First Solar recommends no more than 40.8 kg (90 lb) per module that is evenly distributed while cleaning. Specific contact points (wheels or belts) can affect the load and pressure placed on the modules.

  • Page 24: Module Disposal

    If wheels are used to guide the cleaning solution on the edge or to drive the solution on the ► surface of the modules approval from first solar is needed 8.3 MODULE DISPOSAL Modules may be recycled or disposed of in accordance with applicable local requirements.

  • Page 25: Revision History

    First Solar Series 7 FT1 Module - USER GUIDE FIRST SOLAR 22 of 22 REVISION HISTORY REVISION REVISION AMENDMENT DETAILS NUMBER DATE Initial Release 1/16/2023 FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0...

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