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SOFAR 7.5KTLM

User manual

Copyright © Shenzhen SOFARSOLAR Co., Ltd

- 42 -

·

Warning Light (RED)

ON: ‘Fault’ or ‘Permanent’ state
OFF: ‘Normal’ state

·

GFCI Warning Light (RED)

ON: ‘ID12: GFCI Fault’ or ‘ID20: GFCI Device Fault’
OFF: GFCI normal

6.2. Standard Interface

Содержание 7500TLM

Страница 1: ...Shenzhen SOFARSOLAR CO Ltd Solar Grid tied Inverter Product Model SOFAR 7 5KTLM User manual ...

Страница 2: ...ing PGND Cables 22 4 3 Connecting DC Input Power Cables 24 4 4 Connecting AC Output Power Cables 27 4 5 RS485 CT inverter logic interface connection 30 4 6 Wi Fi GPRS Ethernet module installation procedure 35 4 7 Communication method 36 5 Commissioning of inverter 40 5 1 Safety inspection before commissioning 40 5 2 Start inverter 40 6 Operation interface 41 6 1 Operation and Display Panel 41 6 2 ...

Страница 3: ... user or field Copyright Declaration The copyright of this manual belongs to Shenzhen SOFARSOLAR Co Ltd Any corporation or individual should not plagiarize partially copy or fully copy it including software ect and no reproduction or distribution of it in any form or by any means All right reserved SOFARSOLAR reserves the right of final interpretation This manual is subject to change according to ...

Страница 4: ...verters Keep this manual where it will be accessible at all times Target Group This manual is intended for qualified electrical technical personnel who are responsible for inverter installation and commissioning in the PV power system and PV plant operator Symbols Used This manual is provides safety operation information and uses the symbol in order to ensure personal and property security and pro...

Страница 5: ... which if not avoided could result in death or serious injury Warning Caution indicates a hazardous situation which if not avoided could result in minor or moderate injury Caution Attention indicates potential risks which if not avoided may lead to equipment fault or property damage Attention Note provides tips that are valuable for the optimal operation of the product Note ...

Страница 6: ...start to install and troubleshoot the equipment According to the national and state requirements before connecting to the electrical grid you must get permission from the local electrical grid operation can only be performed by qualified electrical engineer Please contact the nearest authorized service center if any maintenance or repair is needed Contact your distributor for the information of th...

Страница 7: ...ponsibility for the property destruction and personal injury because of any incorrect use Installation requirements Please install inverter according to the following section Fix the inverter on an appropriate objects with enough load bearing capacity such as walls PV racks etc and ensure that inverter is vertical placed Choose a place suitable for installing electrical devices And assure there is...

Страница 8: ...ly by professional electrical engineer Must be trained Completely read the manual operation and understand relevant matter Warning Get permission from the local electrical gird operator complete all electrical connections by professional electrical engineer then connect inverter to electrical grid Attention It s forbidden to remove the tamper evident label or open the inverter Otherwise Sofarsolar...

Страница 9: ... unacceptable effect upon the environment Therefore EMC represents the quality characters of an electrical equipment The inherent noise immune character immunity to internal electrical noise External noise immunity immunity to electromagnetic noise of external system Noise emission level influence of electromagnetic emission upon environment Electromagnetic radiation from inverter may be harmful t...

Страница 10: ...hould wait for five minutes to ensure the capacitor is discharged completely Caution risk of electric shock Caution hot surface Comply with the Conformite Europeenne CE certification Grounding point Please read this manul before install SOFAR 7 5KTLM This indicates the degree of protection of the equipment according to IEC standard 70 1 EN 60529 June 1997 Positive pole and negative pole of the inp...

Страница 11: ...fficiency curves of in the inverter 2 1 Product dimensions SOFAR 7 5KTLM is a dual MPPT grid tied PV inverter which converts the DC power generated by PV arrays into sine wave single phase AC power and feeds it to the public electrical grid AC circuit breaker refer to Section 4 4 and DC switch used as disconnect device and the disconnect device shall be easily accessible Figure 2 1 PV Grid tied Sy...

Страница 12: ...ules can be connected to the input of the inverter do not connect batteries or other sources of power supply The choice of optional parts of inverter should be made by a qualified technician who knows the installation conditions clearly Overall dimensions L W H 467mm 352mm 157mm Figure 2 2 Front view and left view dimensions Figure 2 3 Back view and Bracket dimensions ...

Страница 13: ... by Power Board AC power is filtered through Output Board then AC power is fed into the grid Output Board also offer functions such as grid voltage output current detection GFCI and output isolation relay Control Board provides the auxiliary power controls the operation state of inverter and shows the operation status by Display Board Display Board displays fault code when inverter is in abnormal ...

Страница 14: ...RS485 serial interface C Limiting the active power fed into the grid The inverter if enabled can limit the amount of active power fed into the grid by the inverter to the desired value Expressed as a percentage D Self power reduction when grid is over frequency When the grid frequency is higher than the limited value inverter will reduce output power which is necessary for the grid stability E Dat...

Страница 15: ...SOFAR 7 5KTLM User manual Copyright Shenzhen SOFARSOLAR Co Ltd 10 Electrical block diagram Figure 2 5 Electrical block diagram 2 3 Efficiency curve ...

Страница 16: ...terial Do NOT install the SOFAR 7 5KTLM in an area used to store Flammable or explosive material Danger The enclosure and heat sink are very hot while the inverter is working therefore do NOT install the SOFAR 7 5KTLM in places where you might touch them inadvertently Caution Consider the weight of SOFAR 7 5KTLM when transporting and moving the inverters Choose an appropriate mounting position and...

Страница 17: ... materials within 24 hours before installing the SOFAR 7 5KTLM inverter Checking Deliverables After unpacking the inverter check whether deliverables are intact and complete If any damage is found or any component is missing contact the dealer Table 3 1 shows the components and mechanical parts that should be delivered NO Picture Description Quantity 1 7 5KTLM 1pcs 2 Rear panel 1pcs 3 PV input ter...

Страница 18: ... 13 7 M5Hexagon screws 2pcs 8 Expansion bolts 10pcs 9 M6 flat washer 10pcs 10 Self tapping screw 8pcs 11 Tubular pressure terminal 3pcs 12 Manual 1pcs 13 The warranty card 1pcs 14 Outgoing inspection report 1pcs 15 Registration Form 1pcs 16 485 terminal 2pin 1pcs ...

Страница 19: ...check the product package and fittings carefully before installation CAUTION Figure 3 2 SOFAR 7 5KTLM inverter overview Table 3 2 SOFAR 7 5KTLM inverter overview 1 DC Switch 5 Breather valve 2 PV input terminals 6 USB DRMs RS485 CT 3 WiFi GPRS Ethernet 7 LCD 4 Grid connection port 8 DC switch lock For Australian models Note Lock the screw to limit the torque of the DC switch making it impossible t...

Страница 20: ...del Function 1 Hammer drill Recommend drill dia 6mm Used to drill holes on the wall 2 Screwdriver wiring 3 Removal tool Remove PV termin 4 Wire stripper Strip wire 5 4mm Allen Wrench Turn the screw to connect rear panel with inverter 6 Crimping tool Used to crimp power cables 7 Wire crimpers Crimp tubular pressure terminal 8 Multi meter Used to check grounding 9 Marker Used to mark signs 10 Measur...

Страница 21: ... ESD gloves Operators wear 13 Safety goggles Operators wear 14 Anti dust respirator Operators wear 3 5 Determining the Installation Position Determine an appropriate position for installing the SOFAR 7 5KTLM inverter Comply with the following requirements when determining the installation position Figure 3 3 Installation Requirements ...

Страница 22: ...SOFAR 7 5KTLM User manual Copyright Shenzhen SOFARSOLAR Co Ltd 17 Figure 3 4 Clearance for single SOFAR 7 5KTLM Inverter Figure 3 5 Installation of multiple SOFAR 7 5KTLM inverter ...

Страница 23: ...inverter 1 Figure 3 7 Moving the inverter 2 Step 2 Lift the SOFAR 7 5KTLM from the packing case and move it to the installation position To prevent device damage and personal injury keep balance when moving the inverter because the inverter is heavy Do not put the inverter with its wiring terminals contacting the floor because the power ports and signal ports are not designed to support the weight...

Страница 24: ...or of the hole positions is too big you need to reposition Step 2 Insert the expansion bolt vertically into the hole pay attention to the insertion depth of the expanding bolt should be deep enough Step 3 Align the rear panel with hole positions fix the rear panel on the wall by tightening the expansion bolt with the nuts Figure 3 8 Step 4 Hook the inverter to the rear panel Using an M5 screw to s...

Страница 25: ...SOFAR 7 5KTLM User manual Copyright Shenzhen SOFARSOLAR Co Ltd 20 Figure 3 9 ...

Страница 26: ...n electrical shock hazard Therefore before connecting DC input power cable cover PV modules using opaque clot Danger In Germany the PV array maximum voltage must be 600V max output of single inverter is 4 6KVA and max output of PV system is 13 8KVA SOFAR 7 5KTLM has 2 MPPT trackers all PV modules connected to the same MPPT should have similar rated electrical characteristics including Isc Voc Im V...

Страница 27: ...ound PGND cables for grounding purpose The inverter is transformer less requires the positive pole and negative pole of the PV array are NOT grounded Otherwise it will cause inverter failure In the PV power system all non current carrying metal parts such as PV module frame PV rack combiner box enclosure inverter enclosure should be connected to earth Attention Prerequisites The PGND cables are pr...

Страница 28: ...rimping tool as shown in Figure 4 3 Figure 4 3 Preparing a ground cable 2 Note 1 L3 is the length between the insulation layer of the ground cable and the crimped part L4 is the distance between the crimped part and core wires protruding from the crimped part Note 2 The cavity formed after crimping the conductor crimp strip shall wrap the core wires completely The core wires shall contact the term...

Страница 29: ...s Table 4 1 Recommended DC input cable specifications Cross Sectional Area mm External Cable Diameter mm Range Recommended Value 4 0 6 0 4 0 4 5 7 8 Procedure Step 1 Remove cable glands from the positive and negative connectors Step 2 Remove the insulation layer with an appropriate length from the positive and negative power cables by using a wire stripper as show in Figure 4 5 ...

Страница 30: ...and negative power cables into corresponding cable glands Step 4 Insert the stripped positive and negative power cables into the positive and negative metal terminals respectively and crimp them using a clamping tool Ensure that the cables are crimped until they cannot be pulled out by force less than 400 N as shown in Figure 4 6 Figure 4 6 Connecting DC input power cables 1 Positive power cable 2...

Страница 31: ...ors into corresponding DC input terminals of the inverter until you hear a click sound as shown in Figure 4 7 Figure 4 7 Connecting DC input power cables 1 Bayonet Note Insert the stoppers into the unused DC connectors Follow up Procedure To remove the positive and negative connectors from the inverter insert a removal wrench into the bayonet and press the wrench with an appropriate strength as sh...

Страница 32: ...oads between inverter and circuit breaker AC breaker used as disconnect device and the disconnect device shall remain readily operable Caution Context All the AC output cables used for the inverters are outdoor three core cables To facilitate the installation use flexible cables Table 4 2 lists the recommended specifications for the cables Figure 4 9 NOT allowed connect loads between inverter and ...

Страница 33: ...llowing figure Figure 4 10 wire length wire cross sectional area and wire power loss Customer need to make AC output cable connections by himself and the appearance of the AC connector is shown below AC wire connections procedure Step 1 As shown in figure 4 11 To make the output line the wire ends need to use tube type terminals It is recommended to use tube type terminals KST model E6012 10AWG Fi...

Страница 34: ...onnect AC output cable as per the following requirements Figure 4 13 Connect the yellow and green cable to the lock hole of AC terminal marked with GND identification Connect the red line to the lock hole of the terminal with L identification AC Connect the black line to the lock hole of the terminal with N identification AC Step 4 As shown in figure 4 14 Tighten the waterproof lock nut install th...

Страница 35: ...ication interface location of the SOFAR 7 5KTLM is shown in the figure below Figure 4 15 Table 4 3 Recommended communication cable size are shown below The wiring methods are the same for RS485 and CT this part describes their wiring methods and logic interface wiring method Communication function RS485 CT Cable size 0 5 1 5mm 0 5 1 5mm Outside diameter 2 5 6mm 2 5 6mm ...

Страница 36: ...er in the waterproof connector Figure 4 17 A3 Waterproof stopper Step3 Select appropriate cable according Table 4 2 remove the insulation layer using a wire stripper the length of the wire core is about 6mm insert the cable through the cable gland and waterproof cover according to Table 4 4 connect the wires as per the labels and secure the wire using a slotted screwdriver as shown in the figure b...

Страница 37: ...ignal CT CT Figure 4 18 The logic interface pin definitions and circuit connections are as follows The function of logical interface needs to be set on the display screen please refer to the operation steps in section 6 3 Logic interface pin are defined according to different standard requirements a Logic interface for AS NZS 4777 2 2015 also known as inverter demand response modes DRMs The invert...

Страница 38: ... 3 White and green DRM3 7 4 Blue DRM4 8 5 White and blue RefGen 6 Green DRM0 7 White and brown Pin7 Pin8 short internal 8 Brown NOTE Supported DRM command DRM0 DRM5 DRM6 DRM7 DRM8 b Logic interface for VDE AR N 4105 2018 11 is in order to control and or limit the inverter s output power The inverter can be connected to a RRCR Radio Ripple Control Receiver in order to dynamically limit the output p...

Страница 39: ...lay 4 output 5 G GND Relays common node 6 NC Not Connected Not Connected 7 NC Not Connected Not Connected 8 NC Not Connected Not Connected Table 4 7 The inverter is preconfigured to the following RRCR power levels Relay status close is 1 open is 0 L1 L2 L3 L4 Active Power Cos φ 1 0 0 0 0 1 0 1 0 0 30 1 0 0 1 0 60 1 0 0 0 1 100 1 c Logic interface for EN50549 1 2019 is in order to cease active powe...

Страница 40: ... Connected Not Connected Table 4 9 The inverter is preconfigured to the following RRCR power levels Relay status close is 1 open is 0 L1 Active Power Power drop rate Cos φ 1 0 5 seconds 1 0 100 1 Step4 Insert the terminal as per the printed label and then tighten the screws to fix the waterproof cover rotate the cable gland clockwise to fasten it securely Figure 4 21 4 6 Wi Fi GPRS Ethernet module...

Страница 41: ...ication method SOFAR 7 5KTLM gird connected inverters offer RS485 standard and Wi Fi optional communication modes A Communication between one inverter and one PC 1 RS485 Refer to the figure shown below connect the TX and TX of the inverter to the TX and TX of the RS485 USB adapter and connect the USB port of the adapter to the computer NOTE1 ...

Страница 42: ...ergy alert operation status of the inverter can be transferred to PC or uploaded to the server via Wi Fi GPRS Ethernet You can register on the website http www solarmanpv com portal Register Regi_Pub aspx Using the Wi Fi GPRS Ethernet S N number NOTE3 then you can login the website http www solarmanpv com portal LoginPage aspx to remote monitors the inverter B Communication between multiple invert...

Страница 43: ...inverters can be connected in one daisy chain NOTE2 Figure 4 25 2 WI FI GPRS Ethernet Refer to the figure shown below wireless function required for the PC Figure 4 26 The operation information generated energy alert operation status of the inverter can be transferred to PC or uploaded to the server via WIFI GPRS Ethernet You can register on the website http www solarmanpv com portal Register Regi...

Страница 44: ...should be less than 1000 m Note2 When multiple inverters are connected via RS485 wires set mod bus address to differentiate the inverters Note3 S N number of the Wi Fi GPRS Ethernet module is located on the side Note4 Specific use methods of Wi Fi GPRS Ethernet can refer to the operation manual of Wi Fi GPRS Ethernet ...

Страница 45: ...E Choose the correct country code refer to section 6 3 of this manual Notice Different distribution network operators in different countries have different requirements regarding grid connections of PV grid connected inverters Therefore it s very important to make sure that you have selected the correct country code according to requirements of local authority Please consult qualified electrical e...

Страница 46: ... of SOFAR 7 5KTLM Inverter 6 1 Operation and Display Panel Buttons and Indicator lights Key button Back to return to previous menu or enter into main menu from the standard interface Up to move up or increase value Down to move down or decrease value OK to confirm selection Indicator Lights Inverter States Light GREEN Flashing Wait or Check state ON Normal state OFF Fault or Permanent state ...

Страница 47: ...r manual Copyright Shenzhen SOFARSOLAR Co Ltd 42 Warning Light RED ON Fault or Permanent state OFF Normal state GFCI Warning Light RED ON ID12 GFCI Fault or ID20 GFCI Device Fault OFF GFCI normal 6 2 Standard Interface ...

Страница 48: ... SOFARSOLAR Co Ltd 43 When power on LCD interface displays INITIALIZING refer below picture when control board successfully connected with communication board the LCD display the current state of the inverter display as shown in the figure below ...

Страница 49: ...nd hardware are functional Inverter will go to Fault State or Permanent State if any error or fault occurs Normal Inverter enter to Normal State it is feeding power to the grid inverter will go to Fault State or Permanent state if any error or fault occurs Fault Fault State Inverter has encountered recoverable error It should recover if the errors disappear If Fault State continues please check th...

Страница 50: ...Scan 8 Set Address 19 StartTime 9 Set Input mode 20 Set ElecMeter 10 Set Language 21 Logic interface 11 Set Start Parameter 22 Set Power Ratio 1 Set Time Set the system time for the inverter 2 Clear Energy Clean the inverter of the total power generation 3 Clear Events Clean up the historical events recorded in the inverter 4 Set Country Set up the safety regulation country that meets the current ...

Страница 51: ...e Continent 26 Philippines 46 Dubai DEWG 07 Netherland 27 NewZealand 47 Dubai DEWG MV 08 Belgium 28 Brazil 48 Taiwan 09 UK G99 29 Slovakia VSD 49 AU VIC 10 China 30 Slovakia SSE 100 AU SA 11 France 31 Slovakia ZSD 101 AU QLD 12 Poland 32 CEI0 21 In Areti 102 AU VAR 13 Germany BDEW 33 Ukraine 103 AVSGRID 14 Germany VDE 0126 34 Brazil LV 104 Horizon 15 Italy CEI0 16 35 Mexico LV 16 UK G98 36 FAR Arr...

Страница 52: ...on SOFAR 7 5KTLM inverter has 2 MPPT channels which can run independently or in parallel Users choose the operation mode of MPPT according to the system design Parallel mode is applicable to the case where two channels are in parallel independent mode is applicable to the case where two channels of MPPT run independently and the default mode is independent mode 10 Set Language Set the inverter dis...

Страница 53: ... be tracked 19 Start Time Startup time and recovery reconnection time can be set 20 Set ElecMeter Enable or disable meter functions 21 Logic interface Enable or disable logical interfaces Please refer to this manual 4 5 RS485 CT inverter logic interface connection for details 22 Set Power Ratio Set generation ratio B Event List Interface as below Event List is used to display the real time event r...

Страница 54: ...iew D Display Time Press the Back button and Up button or Down key in the standard user interface to enter into 4 System Time then press OK button to display the current system time E Software Update User can update software by SD card Sofarsolar will provide the new update software called firmware for user if it is necessary The user needs to copy the upgrade file to the SD card 6 4 Update Softwa...

Страница 55: ...ssword if password is correct and then begin the update process the original password is 0715 Step 7 System update main DSP slave DSP and ARM in turns If main DSP update success the LCD will display Update DSP1 Success otherwise display Update DSP1 Fail If slave DSP update success the LCD will display Update DSP2 Success otherwise display UpdateDSP2 Fail Step 8 If Fail please turn off the DC break...

Страница 56: ...e inverter screen record all the fault information If there is no fault information shown on the screen check whether the following requirements are met Is the inverter mounted in a clean dry place with good ventilation Is the DC switch turned ON Are the cables adequately sized and short enough Are the input and output connections and wiring in good condition Are the configuration settings correct...

Страница 57: ...voltage is too low Check whether too few PV modules are series connected in a PV string thus the voltage Vmp of the PV string is lower than the minimum operating voltage of inverter If yes adjust the number of series connected PV modules to increase the voltage of the PV string to fit the input voltage range of inverter inverter automatically returns to normal operating status after correct adjust...

Страница 58: ...D16 AcRmsOCP The grid current is too high ID17 HwADFault IGrid The grid current sampling error ID18 HwADFaultDCI The DCI sampling error ID19 HwADFault VGrid The grid voltage sampling error ID20 GFCIDevice Fault The GFCI sampling error ID21 MChip_Fault The master chip fault ID22 HwAuxPower Fault The auxiliary voltage error ID23 BusVoltZero Fault The bus voltage sampling error ID24 IacRms Unbalance ...

Страница 59: ...pport ID50 ConsistentFault_ FGrid The grid frequency sampling value between the master DSP and slave DSP is not consistent ID51 ConsistentFault_ DCI The DCI sampling value between the master DSP and slave DSP is not consistent ID52 ConsistentFault_ GFCI The GFCI sampling value between the master DSP and slave DSP is not consistent ID53 SpiCommLose The spi communication between the master DSP and s...

Страница 60: ... 6 Input Mode of this user manual If it s incorrect change it according to Section 6 3 A 10 Set Input mode of this manual ID74 UnrecoverIPV Instant The input current is too high and has cause unrecoverable fault ID74 ID77 are internal faults of inverter turn OFF the DC switch wait for 5 minutes then turn ON the DC switch Check whether the fault is rectified If no please contact technical support I...

Страница 61: ... technician for help ID94 Softwareversion isnotconsistent The software in the control board and the communication board is not consistent Contact technical support to upgrade software ID95 Communication boardEEPROM fault The communication board EEPROM is fault ID95 ID96 are internal faults of inverter turn OFF the DC switch wait for 5 minutes then turn ON the DC switch Check whether the fault is r...

Страница 62: ...ion of inverters ensure there is enough space around the heat sink for ventilation check the heat sink for blockage dust snow etc and clean them if they exist Please clean the heat sink with an air blower a dry soft cloth or a soft bristle brush Do NOT clean the heat sink with water corrosive chemicals detergent etc ...

Страница 63: ...rameters DC Technical Data SOFAR 7500TLM Recommended Max PV input power 9980Wp Max DC power for single MPPT 2750W 2 2750W Max Input voltage 600V Aux Start up voltage 60V Start up input voltage 120V MPPT voltage range 90 580V Rated input voltage 360V Full load DC voltage range 250 520V Max Input current 22A 11A Input short circuit current 26 4A 13 2A Number of MPPT 2 Number of DC input per MPPT 2 1...

Страница 64: ... Output power 7500W Max Output power 7500VA Max Output current 32 6A Nominal grid voltage L N PE 220Vac 230Vac 240Vac Grid voltage range 180 276Vac According to local grid standard Nominal grid frequency 50Hz 60Hz Grid frequency range 45 55Hz 54 66Hz According to local grid standard THDi 3 Power factor 1default 0 8 adjustable ...

Страница 65: ...oring EMC EN 61000 6 2 EN 61000 6 3 EN 61000 3 2 EN 61000 3 3 EN 61000 3 11 EN 61000 3 12 Safety standards IEC 62109 1 2 IEC 62116 IEC 61727 IEC 61683 IEC 60068 1 2 14 30 Grid standards VDE AR N 4105 CEI 0 21 G98 G99 EN 50438 Protective class Class I External environment pollution degree Degree 3 Overvoltage category PV OVC II AC mains OVC III Max inverter Back feed current to the array 0A Output ...

Страница 66: ...rmerless Ambient temperature range 30 60 Permissible humidity range 0 100 Noise figure 25dB DC Switch Optional Cooling Natural convection Max Operating altitude 2000m Outline Dimension 467 352 157mm Bracket Wall mounted Weight 18kg Display LCD Communication mode RS485 WiFi GPRS Ethernet optional SD card Degree of protection IP65 ...

Страница 67: ...ase of the inverter based on the purchase invoice or within 24 months of the production of the inverter SN number of machine based on the first date of arrival Customers can apply to buy extended warranty products from the company s sales team by providing the product serial number Our company may refuse to do not conform to the time limit extended warranty purchase application Customers can buy a...

Страница 68: ... of non company modify or attempt to repair and erase the product serial number or silk screen 5 Incorrect installation debugging and use methods 6 Failure to comply with safety regulations certification standards etc 7 Damage caused by improper storage by dealers or end users 8 Transportation damage including scratches caused by internal packaging during transportation Please claim directly from ...

Страница 69: ...edies held by a consumer at law Our goods come with guarantees that cannot be excluded under the Australian Consumer Law You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a ma...

Страница 70: ...ADD 401 Building 4 AnTongDa Industrial Park District 68 XingDong Community XinAn Street BaoAn District Shenzhen GuangDong P R China Email service sofarsolar com Tel 0510 6690 2300 Web www sofarsolar com ...

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