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TW SOLAR 182-72-PERC Installation Manual

Bifacial module

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Bifacial Module Installation Manual for
182-72-PERC of Tongwei Solar (Hefei) Co., Ltd.
1

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Summary of Contents for TW SOLAR 182-72-PERC

  • Page 1 Bifacial Module Installation Manual for 182-72-PERC of Tongwei Solar (Hefei) Co., Ltd.
  • Page 2 Tongwei Solar (Hefei) Co., Ltd Bifacial Module Installation Manual for 182-72-PERC Serial number:TWsolar-M-RD-TS001 Version number:A0 2023-06-05 Published 2023-06-05 Implemented...
  • Page 3 PV Module Installation Manual Bifacial Module: Max. System Voltage: up to 1500VDC (Voc at STC) With ½ cut of 182 mono c-Si cells: TWMPD-72HD540 TWMPD-72HD545 TWMPD-72HD550 TWMPD-72HD555 The modules mentioned in this installation manual are only allowed to be installed below 2000m above sea level.
  • Page 4: Table Of Contents

    CONTENTS Purpose of this Manual ......................03 Disclaimer ..........................03 Safety & Transport ........................04 Mechanical Installation ......................9 Electrical Installation ........................14 Grounding ..........................16 Bypass Diodes and Block Diodes .....................17 Maintenance ..........................18...
  • Page 5: Purpose Of This Manual

     This manual applies exclusively to the bifacial module (here in after referred to as Module) of TW solar energy Co., Ltd (here in after referred to as TW). The contents of this manual involve the installation methods, operation safety and maintenance information of TW’s Modules.
  • Page 6: Safety & Transport

    SAFETY & TRANSPORT General Detailed Rules  Keep all the Modules and electrical connectors clean and dry before installation.  Use both hands to carry Modules. Do not overlap Modules.  Be cautious when carrying Modules. Slip-proof gloves are necessary. ...
  • Page 7 SAFETY & TRANSPORT Electrical Performance Safety  PV modules can produce DC current under sunlight. Any contact of exposed metal at module's wiring parts may result in electrical shock or burn. Any contact of 30V or larger DC Voltage can be fatal. ...
  • Page 8 SAFETY & TRANSPORT Description of Package Signs Before the operation, it is necessary to read carefully the unpacking instruction and outer packing box instruction, and carry out the operation as instructed. 1. DO NOT expose the module to rain or 2.
  • Page 9 SAFETY & TRANSPORT Unloading, Transportation and Storage  When the Modules are delivered to the project site, the freight car shall be ready in the flat, even and open area for parking and unloading.  Forklift unloading: Choose the appropriate carrying forklift according to the commodity weight, unload the Modules from the freight car and place them on flat ground.
  • Page 10 SAFETY & TRANSPORT  Storage in the project site warehouse: Storage environment requirements: Humidity<85%, temperature -20 ~+50℃; Modules statically stacked for ≤2 layers.  Temporary storage at the project site: The Modules shall be stored in a dry, well-ventilated place. They shall not be stacked but shall be covered with waterproof cloth to prevent dampness in the Modules.
  • Page 11: Mechanical Installation

    MECHANICAL INSTALLATION Location Selection  Select suitable places to install Modules. The module in the north latitude region shall face south, and shall face north in the south latitude region.  Install Modules at the places with sufficient sunlight and without shade at any time. If a module is shaded or even partially shaded, it will result in lower power output.
  • Page 12 MECHANICAL INSTALLATION Installation requirements  The installation structure shall be made of the durable 、 corrosion-resistant and ultraviolet-resistant materials. It is necessary to ensure that the support and structure in use have been tested, certified and approved.  No matter where the Modules are installed, it is necessary to ensure that the module is firmly mounted on the support, and ensure that it can undertake the corresponding wind loading and snow loading.
  • Page 13 MECHANICAL INSTALLATION Framed Modules Installation with the mounting clamp  Table 1 Installation Method Installation Method A Installation Method B Clamping on the long side Note: The length of the clamp≥50mm.
  • Page 14 MECHANICAL INSTALLATION Table 2 Installation method and load capacity Installation method Installation method A Installation method B Design load: Design load: Mounting clamp Mounting clamp Mounting clamp front/back, front/back, Modules size position position position Modules model γm=1.5 γm=1.5 (mm) (mm) (mm) (mm) (Pa)...
  • Page 15 MECHANICAL INSTALLATION The Modules may be installed and fixed with the following methods:  Clamping system: use proper clamp, and fix the module with the installation support, as shown in Fig. 3. The clamp must maintain an overlap of unless 8 mm with the frame of the module(you can change the cross section of the clamp if the module is securely installed).
  • Page 16: Electrical Installation

    ELECTRICAL INSTALLATION DC power generated by the photovoltaic system can be converted into AC power and fed into the grid. Policies on connecting renewable energy system to the grid vary from region to region. Consult senior system designer before designing the system. Generally, the system installation shall be formally approved by the local public sector.
  • Page 17 ELECTRICAL INSTALLATION Figure 4 Connection in Series Figure 5 Connection in parallel  Refer to the local regulations to determine the system wire size, types and temperatures.  The cross section of the cables and the capacity of the connectors must be selected to suit the maximum system short circuit current (The recommended section area for a single piece of Module is 4 mm , and the recommended rated current for the connector is greater...
  • Page 18: Grounding

    GROUNDING Grounding by cable   The grounding bolts must be made of stainless steel and be used in the specified grounding holes. First, make the M3. 5 stainless steel bolt pass through the spring washer, flat washer, cup washer (copper conductor with a diameter of 2.1 mm) and star washer, and then insert through the grounding hole, flat washer and spring washer on the frame.
  • Page 19: Bypass Diodes And Block Diodes

    BYPASS DIODES AND BLOCK DIODES In a system with two or more Modules connected in series, if part of a Module is shaded while the other part is exposed to the sun, a very high reverse current will go through the cells which have been partly or entirely covered and it will cause overheat on the cells, which may damage the Module.
  • Page 20: Maintenance

    MAINTENANCE Normally, the Modules do not need repair. Follow the maintenance methods below to ensure the best performance of the Modules:  In most conditions, the normal rainwater can keep the module glass clean. Clean the glass surfaces with wet soft sponge or cloth if necessary. Use mild non-abrasive cleaning agent to remove stubborn dirt.