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1. 1 4 of module length 1 4 of module length REE EEE EEE SSS SSS SSS Mounting methods 1 Mounting with Bolts v The module must be attached and supported by at least four bolts through the indicated mounting holes v Most installations will use the four inner mounting holes on the module frame v Depending on the local wind and snow loads additional mounting points may be required 2 Mounting with Clamping Hardware mounting area mounting area v If module clamps are used to secure the module the torque on the clamp bolt should be around 8 10 Nm v Aminimum of four module clamps should be used two on each long frame side in the general clamping areas denoted by the wide arrows on the drawing v Depending on the local wind and snow loads additional module clamps may be required All dimensions in mm 3 Other v Other mounting methods are acceptable as long as the minimum requirement as www ETSolarcom 2009 ET Solar All Right Reserved 3 cl described under 2 Mounting with clamping hardware are met Solar www ETSolar com Electrical Installation Grounding v All module frames must be properly grounded v Observe all local electric codes and regulations v A bonding or toothed washer is required to make proper and reliable electrical grounding connection with the anodized aluminum frame v Devices listed and identified for grounding metallic frames of PV
2. amp l Installation Safety instructions Maintenance Photovoltaic modules user manual ET Solar series module www ETSolar com Please carefully read the following installation and safety instructions Non compliance with these instructions may void the module warranty Purpose of this guide This guide contains information regarding the installation and safe handling of ET Solar photovoltaic modules hereafter referred to as modules All instructions should be read and understood before attempting installation If there are any questions please contact your dealer or ET Solar for further information The installer should conform to all safety precautions in the guide when installing modules Before installing a solar photovoltaic system the installer should become familiar with the mechanical and electrical requirements for photovoltaic systems Keep this guide in a safe place for future reference If not otherwise specified it is recommended that the requirements of the U S National Electrical Code NEC or respective European Code be followed General v Installing solar photovoltaic systems requires specialized skills and knowledge The installer assumes all risk of injury including risk of electric shock Module installation should be performed only by qualified persons v All modules come with a permanently attached junction box and 12 AWG 4 mm wire terminated in Multi Contact PV connectors Your dealer can provid
3. ETSolar com 2009 ET Solar All Right Reserved 4 amp l Testing debugging and troubleshooting www ETSolar com v Blocking diode can be used in PV system to prevent reverse current from the battery if there is no photo current in the module If charge controllers are not used then it is recommended to use blocking diodes For more details on charge controllers please consult with professionals v In cases where two or more modules are connected serially in a system if part of the modules are occluded and the other part are exposed to the sun the high reverse current will flow partially or completely through the module causing the modules to overheat and even damaging the modules Bypass diode used in modules can protect modules from such impact of excessive reverse current The bypass diodes with 70 watt rated power greater than all the modules have been integrated in the junction box v Operators should protect themselves from electrical shock during debugging or maintenance of solar systems Test procedure for modules serial connected before connect them to the PV system v Use digital multimeter to check the total open circuit voltage of the serially connected modules The results should be equal to the sum of the open circuit voltage of individual modules which can be found from the label on the modules If the total open circuit voltage is much lower than expected please follow the following procedure in this instruc
4. Reserved 6 amp l Information about manufacturer www ETSolar com ET Solar China 27F Galaxy International Plaza 7 Shanxi RD Nanjing 210009 China Tel 86 25 86898096 86898098 Fax 86 25 86898097 E mail support etsolar com Please consult your dealer or the manufacturer concerning the warranty of your modules If you have any further questions your dealer and ET Solar will gladly assist you Subject to technical modifications without notice 2009 ET Solar Group www ETSolarcom 2009 ET Solar All Right Reserved 7
5. connectors wiring and mounting hardware suitable for use ina photovoltaic system Always use the same type of module within a particular photovoltaic system Under normal operating conditions PV modules will produce currents and voltages that are different than those listed in the date sheet Data sheet values are applicable at standard test data Short circuit current and open circuit voltages should be multiplied by a factor of 1 25 when determining component voltage ratings conductor ampacity fuse sizes and size of controls connected to the module or system output An additional multiplying factor of 125 percent 80 percent de rating may be applicable General installation notes v WA ON NS As Drainage holes must not be covered with parts of the mounting system The junction box has a breather port which must be mounted facing downward and cannot be exposed to the rain The junction box should be on the higher side of the module when it is mounted in order to orient the breather port correctly Do not lift the module by grasping the module s junction box or electrical leads Do not stand or step on module Do not drop the module or allow objects to fall on the module Do not place any heavy objects on the module Do not scratch the anodized coating of the frame except for grounding connection Prior to installation do not store modules outdoors or in a damp environment Inappropriate transport and installation may damage the mo
6. dule glass or frame www ETSolarcom 2009 ET Solar All Right Reserved 2 cl Mechanical Installation Solar www ETSolar com Selecting the location v Select a suitable location for installation of the module v For optimum performance the module must be facing true south in northern latitudes and true north in southern latitudes v For detailed information on optimal module orientation refer to standard solar photovoltaic installation guides or a reputable solar installer or systems integrator v Shading on the module will reduce electricity production v Do not install the module near equipment or in locations where flammable gases can be generated or collected Selecting the proper mounting structure and hardware v Observe all instructions and safety precautions included with the mounting system to be used with the module v Do not drill holes in the glass surface of the module Doing so will void the warranty v Do not drill additional mounting holes in the module frame Doing so will void the warranty v Modules must be securely attached to the mounting structure using four mounting points for normal installation If heavy wind or snow loads are anticipated additional mounting points should also be used Please see the drawing below v Load calculations are the responsibility of the system designer or installer v The mounting structure and hardware must be made of durable anti corrosion and UV resistant material
7. e additional extension cables to simplify module wiring v Each individual module can generate DC voltages greater than 30 volts V when exposed to direct sunlight Contact with a DC voltage of 30 V or more is potentially hazardous Exercise caution when wiring or handling modules exposed to sunlight v When disconnecting wires connected to a photovoltaic module that is exposed to sunlight an electric arc may occur Arcs can cause burns start fires or otherwise create safety problems Exercise caution when disconnecting wiring on modules exposed to sunlight v Photovoltaic solar modules convert light energy to direct current electrical energy and are designed for outdoor use Proper design of support structures is the responsibility of the system designer and installer Modules may be ground mounted pole mounted or mounted on rooftops Do not apply paint or adhesive to the module When installing modules observe all applicable local regional and national codes and regulations Obtain a building and or electrical permit where required v Storage Temperature 10 C 40 C Storage Humidity s70 RH v Use environment temperature 45 85 C other use of harsh conditions please indicate ARS z Do not attempt to disassemble the module and do not remove any attached nameplates or components Doing so will void the warranty Do not use mirrors or other hardware to artificially concentrate sunlight on A the module w
8. e does not strictly follow this manual and or the local regional and national codes and regulations ET Solar shall not be any way responsible or liable for natural causes including but not limited to normal wear and tear of photovoltaic products the natural effects of exposure to weather conditions over time and the outdoor dust build up ET Solar shall not be in any way responsible or liable for the end user Customer or any third party arising out of any non performance or delay in performance of any terms and conditions of sale including this manual due to fire flood blizzard hurricane thunder acts of God changes of public policies terrorism war riots strikes unavailability of suitable and sufficient labor or materials and other events which are out of control of ET Solar No responsibility is assumed by ET Solar for any infringement of patents or other rights of third parties which may result from use of the PV product No license is granted by implication or otherwise under any patent or patent rights The information in this manual is based on ET Solar s knowledge and experience and is believed to be reliable but such information including product specification without limitations and suggestions does not constitute a warranty expressed or implied ET Solar reserves the right to change the manual the product the specifications or product information sheets without prior notice www ETSolarcom 2009 ET Solar All Right
9. eriodically by qualified personnel to verify that they are clean secure and undamaged www ETSolarcom 2009 ET Solar All Right Reserved 5 1 Cc Solar www ETSolar com v Check the electrical and mechanical connections periodically to verify that they are clean secure and undamaged v Problems should only be investigated by qualified personnel v Observe the maintenance instructions for all other components used in the system Shutting down the system v Completely cover system modules with an opaque material to prevent electricity from being generated while disconnecting conductors v Disconnect system from all power sources in accordance with instructions for all other components used in the system v The system should now be out of operation and can be dismantled In doing so observe the all safety instructions as applicable to installation Electrical ratings of the concerned modules Pls refer to each kinds of ET module datasheet Disclaimer of liability Because the use of this manual and the conditions or methods of installation operation use and maintenance of photovoltaic products are beyond ET Solar s control ET Solar does not accept responsibility and expressly disclaims liability for loss damage or expense arising from or in any way connected with improper installation operation use or maintenance Improper installation operation use or maintenance means that installation operation use or maintenanc
10. modules are permitted to ground the exposed metallic frames of the module to rE grounded mounting structures B v Consider using a lay in lug rated for outdoor use if the module grounding k conducior is to be larger than 10 AWG v When using lay in lugs the grounding conductor should be inserted into the opening indicated in the figure and secured using the set screw Stainless Steel Set Screw _ Copper Conductors Thread Forming Screw ea Star Lock Washer j F Aluminum Frame PV module grounding with lay in lug 4mm grounding holes General electrical installation v Do not use modules of different configurations in the same system v This module is supplied with Multi Contact connectors for electrical connections v Refer to local code to determine appropriate types and temperature ratings of conductors Wiring should be 12 AWG 4 mm minimum and must be temperature rated at 90 C minimum v Completely cover system modules with an opaque material to prevent electricity from being generated while disconnecting conductors v Refer to local code to determine over current conductor ampacity and size requirements Installation shall be in accordance with local code For best performance ensure that positive and negative DC wires run closely together avoiding loops XN WARNING Electrical shock hazard Do not touch bare conductors or other potentially energized parts www
11. tion Troubleshooting for low voltage v There are two causes of low open circuit voltage environmental change or circuit fault The drop of irradiance or increase of environmental temperature reduces the open circuit voltage which is normal The troubleshooting here refers to the low voltage caused by circuit faults which is usually due to incorrect connection of terminals or damage of bypass diodes First check all wiring connections and ensure they are well connected into the PV system Then check the modules each by each as below Measure the open circuit voltage of a module Cover the module completely with opaque material Disconnect the module from the system Remove the opaque material from the module and measure its open circuit voltage lf the measured voltage is one third or two thirds of the rated value it indicates that bypass diodes were broken and should be replaced SN ANS Maintenance ET Solar recommends the following maintenance items to ensure optimal performance of the module v Clean the glass surface of the module as necessary Use water and a soft sponge or cloth for cleaning A mild non abrasive cleaning agent can be used if necessary Do not use dishwasher detergent Do not have water staying on the glass surfaces of PV modules for a long time v Do not attempt to clean a module if the front glass is broken or the backsheet is perforated v Electrical and mechanical connections should be checked p
12. ww ETSolarcom 2009 ET Solar All Right Reserved amp l www ETSolar com Safety precautions for installing a solar photovoltaic system v v LN Solar modules produce electrical energy when exposed to sunlight DC voltages may exceed 30V on a single exposed module Only connect modules with the same rated output current in series If modules are connected in series the total voltage is equal to the sum of the individual module voltages Only connect modules or series combinations of modules with the same voltage in parallel If modules are connected in parallel the total current is equal to the sum of individual module or series combination currents Bypass diodes are preassembled in each module Do not remove these diodes Keep children well away from the system while transporting and installing mechanical and electrical components Completely cover all modules with an opaque material during installation to prevent electricity from being generated Do not wear metallic rings watchbands ear nose or lip rings or other metallic devices while installing or troubleshooting photovoltaic systems Use appropriate safety equipment insulated tools insulating gloves etc approved for use on electrical installations Observe the instructions and safety precautions for all other components used in the system including wiring and cables connectors DC breakers mounting hardware inverters etc Use only equipment

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