Installation Manual
Contents
1. 45 50 Voltage V 1000 W m 800 W m 400 W m 600 W m 200 W m IV CURVES AT MULTIPLE TEMPERATURES 1000 W m 10 Current A 10 15 20 25 30 35 40 45 50 Voltage V 10 C 45 C 25 C 35 C 55 C Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 11 of 13 61215 IEC61730 CE UL 1730 and Safety Class II certifications ensure that MEMC solar products operate safely and comply with global electrical performance reliability and fire safety codes THE ENGINEERING DRAWING SHOWN BELONGS TO THE FOLLOWING LISTED SILVANTIS MODULE SERIES P290 amp M320 PA n U JL SECTION J J SIDE FRAME PROFILE JUNCTION P BOX y l NAME PLATE H PN L E Q Qe E J J SECTION K K CONNECTORS END FRAME PROFILE B G 14 0 di 08 0 14 0 8 0 6 0 MOUNTING SLOTS I 4PLACES lt mmm JM 20 0 94 5 GROUNDING HOLES DETAIL M 6PLACES MOUNTING HOLE K 5 Y J L FRAME WEEP I CUTOUTS S ALL 4 CORNERS DETAIL L PHYSICAL PARAMETERS WEEP CUTOUT Module Dimensions Mounting Hole Spacing A 990 39 0 F 950 37 4 TE G 1 1188 46 8 Aoo VCRE Da o 22 0 C 50 20 Cable Length Frame Material Anodized Aluminum D 30 152 H BMC 1 000 39 4 Glass mm 3 2 Tempered ARC glass 22 0 9 H BCC 1 300 512 Di2. authorization Match printed version to documentation database M820 290 Install Guide_12 2012 Copyright 2012 MEMC Electronic Material
3. actual Vmax rating as some models are rated for 1000 V UL and 1000 V IEC Voc equals the module open circuit voltage at coldest conditions for the site refer to local codes WARNING Installers should adhere to all applicable local regional and national codes and regulations when designing and constructing the photovoltaic system NOTE In colder climates it may be necessary to further reduce the maximum number of modules in series by using at the minimum expected operating temperature 5 2 MODULE WIRING The module includes wires and polarized locking connectors from the junction box on the back of the module The wires have sufficient length to connect to adjacent modules in either a portrait or landscape configuration Field replacement of connectors or cables must be avoided and it will invalidate the product warranty Polarized locking connectors of the same type and make are needed for all series string wiring The maximum operating temperature of wires and connectors should not exceed 85 C WARNING It is not recommended to mix connectors from different suppliers within the same string This includes connections at the inverter combiner boxes and modules Always wire modules so that proper polarity is maintained Avoid placing excessive tension on the cables There is no limit to the maximum number of series strings that can be combined in parallel However when doing so each string must include overcurrent protect
4. front side Depending on the desired load capability of the array modules may be mounted either perpendicular or parallel to the structure rails Clamps can be mounted anywhere inside of the safe mounting range for each case illustrated below referring to chart showing clamp and bolt mounting locations f using bolts four mounting holes are provided on the rear side the module frame as shown in Appendix 8 1 Use a stainless Steel bolt stack no smaller than 14 20 or M6 with two flat washers and a locking washer as shown in Appendix 8 2 e To ensure an adequate clamping area all clamps used must comply with the minimum clamping dimensions specified in Appendix 8 3 All fasteners used to fix the modules with clamps should be stainless steel and no smaller than 14 20 or M6 To provide adequate fixing or clamping force torque the minimum recommended fasteners to 6 2 8 9 Nm 4 6 6 6 ft Ib e For all cases the area of the supporting structure in contact with rear side of the module must comply with the minimum support dimensions specified in Appendix 8 3 e All other structural dimensions such as clamp and rail thickness should be sized appropriately for the intended site load 4 3 MODULE INSTALLATION USING CENTER MOUNTING BRACKETS Modules may also be mounted using center clamps as shown in Appendix 8 2 for use with trackers Module clamps for center mounting must be based on MEMC approved extrusion and hardware
5. stack to approximately 1 5 Newton meters or 1 1 foot pounds to ensure the star washer Scratches the anodized frame 5 4 ELECTRICAL INSTALLATION WARNINGS Installation and maintenance should be performed by qualified personnel only Use insulated tools during installation troubleshooting and maintenance of photovoltaic modules e Installers should adhere to all applicable local regional and national codes and regulations when designing and constructing the photovoltaic system Photovoltaic modules produce DC electrical energy from light When illuminated each module can have a DC potential of greater than 45 V and should be handled with care Disconnecting modules under illumination may cause electrical arcing which may result in burns fires or other problems Modules connected in series should not be disconnected under illumination Always use a wire management system that keeps wires and cables out of direct contact with edge surfaces which could cut or damage the insulation Do not allow wires to rest on the ground or roof surface The module junction box should not be opened or modified in any way in the field e Additional grounding holes may be added only with the express written consent of MEMC New grounding holes must be Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 8 of 13 drilled using an approved drill jig avoiding damage to the module glass backsheet or othe
6. the packaging material and the modules Packaged modules must be on appropriate provided pallets and must not be stacked more than two pallet high for storage Once the modules are opened store modules in a dry and ventilated room Modules should never be stored in a wet environment Upon unpacking do not carry a module by its wires or junction box Only carry a module by its frame with two or more people Precaution should be taken to avoid damage to the glass surface with or without anti reflective coating due to improper handling during storage or unpacking Keep all electrical contacts clean and dry All modules are manufactured with a sealed junction box and pre attached cables and locking connectors These components should not be modified or tampered with in any way Do not allow unauthorized persons near the installation site or storage area of modules Do not place modules on top of one another Do not place any load on the module or twist the module frame Do not stand step walk or jump on the module Do not drop or place objects on the modules such as tools Do not handle modules with bare hands and avoid scratches handling marks or any damage especially to the front glass of the module backsheet or electrical components Do not mark the modules with sharp instruments Do not leave a module unsupported or unsecured Do not modify module frames in any way 3 3 SAFETY The following safety guidelines and best p
7. CHARACTERISTICS MEMC MEMC MEMC MEMC MEMC MEMC Model M305BMC M310BMC M315BMC M320BMC M325BMC Rated Maximum Power 305 310 315 320 325 330 Open Circuit Voltage Voc V 45 8 45 9 46 0 46 1 46 2 46 3 Short Circuit Current Isc A 9 00 9 02 9 05 9 14 9 19 9 24 Module Efficiency 15 6 HIS 16 7 16 4 TST 16 9 Max Power Point Voltage Vinpp V 36 9 36 9 37 0 37 1 37 3 Power Point Current 3 29 8 40 8 52 8 68 8 74 8 85 All electrical data at standard test conditions STC 1000W m2 AM1 5 25 C Electrical characteristics may vary by 5 and power by 0 5W Listed specifications are subject to change without prior notice PA 27207 MEMC MEMC MEMC MEMC MEMC MEMC Model M305BCC M310BCC M315BCC M320BCC M325BCC Rated Maximum Power Pmax W 305 310 315 320 325 330 Open Circuit Voltage Voc V 45 8 45 9 46 0 46 1 46 2 46 3 Short Circuit Current Isc A 9 00 9 02 9 05 9 14 9 19 9 24 Module Efficiency 05 6 15 8 16 1 16 4 iem 16 9 Maximum Power Point Voltage Vmpp V 36 8 36 9 x ofall 37 8 Maximum Power Point Current Impp 3 29 8 40 8 52 8 68 8 74 8 85 All electrical data at standard test conditions STC 1000W m2 AM1 5 25 C Electrical characteristics may vary by 5 and power by 0 5W Listed specifications are subject to change without prior notice IV CURVES AT MULTIPLE IRRADIANCES 25 C 10 Current A PSN 0 5 10 15 20 25 30 35 40
8. CTRICAL PARAMETERS AND 9 GO APPENDIX u MNT E nd 1 MODULE DE T IUS 11 8 2 MODULE ILLUSTRATIONS aa 12 CLAMP DRAWINGS 2 12 8 4 PRE MOUNTED CABLES AND CONNECTORS ccecce 13 Customer Service MEMC Singapore PTE LTD 11 Lorong 3 Toa Payoh Block B Jackson Square 4th Floor Singapore 319579 Fax 65 6681 9301 Email modules info sunedison com Website www sunedison com Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 2 of 13 1 0 INTRODUCTION The purpose of this guide is to provide general information regarding the proper installation and handling of MEMC photovoltaic modules that serve residential commercial and industrial segments System design construction and commissioning should be performed by qualified personnel only To ensure system integrity designers installers and operators must meet all mechanical and electrical requirements for the system and its components It is the responsibility of the system designer and installer to ensure that all codes and requirements are followed as well Please review all the sections that pertain to proper installation of modules listed in this Guide The instructions detailed in this guide must be followed throughout the module s lifetime deployment I
9. For module loads higher than 2400 Pa module clamps and hardware must be pre approved by MEMC 4 4 MECHANICAL INSTALLATION WARNINGS e Installation and maintenance should be performed by qualified personnel only Use insulated tools during installation troubleshooting and maintenance of photovoltaic modules e Installers should adhere to all applicable local regional and national codes and regulations when designing and constructing the photovoltaic system Do not stand or walk any surface of the modules Do not place any objects or load on the surface of the modules Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 5 of 13 e Precaution should be taken to avoid damage to the glass surface with or without anti reflective coating due to improper handling during installation Mechanical structures should not contact the module backsheet under any expected load conditions MOUNTING CONFIGURATIONS MODULE ILLUSTRATION LOAD PARAMETERS DETAILS Mounting Color Code Mounting Hole Location N Module Rail Bolt Mount Locations FRONT VIEW Clamp Mount Locations Fixed clamp location for 5400 SACK VIEW front load Maximum Front Load 5400 Pa or 113 psf Maximum Rear Load 2400 Pa or 50 psf CASE 1 Structural rails running perpendicular to the length of the module should be fixed via bolts at the mounting holes between each long sid
10. Installation Manual for MEMC Silvantis 72 cell Photovoltaic Modules Installation Manual MEMC Silvantis P290 M320 1 of 13 Table of Contents pili pl L aa aaa a kawasay sawasqa aka kausaika pankaka aqhaqa 2 2 0 PHOTOVOLTAIC MODULES PRODUC T QUDE aiiirinzaserst idet ria edite PR yunkapa 2 SO MODULE OYERVIEYY EQ Aere d c cel d 2 RR MAINTENANCE spesis M 2 3 2 STORAGE UNPACKING AND HANDLING naque trino bet rein lp dd Rad d apu nuc 3 dco e 3 4 0 MECHANICAL E PLANNING ANID DESIGN danni u u S tUa rada CU PR KU pr crt a KV NR 4 4 2 MODULE INSTALLATION OPTIONS aswata anyaq ect was usa a 4 4 3 MODULE INSTALLATION USING CENTER MOUNTING BRACKETS eee 4 4 4 MECHANICAL INSTALLATION WARNINGS eee eee eene 4 5 0 ELECTRICAL INSTALLATION s nde inh acepte ead 6 5A PLANNING AND DESIGN M 6 5 2 MODULE WIRING 6 prc 7 5 4 ELECTRICAL INSTALLATION 7 6 0 DISCLAIMER OF LIABILITY 8 7 0 MECHANICAL AND ELE
11. MEMC Silvantis P290 M320 4 of 13 Do not wear rings jewelry watches or other metallic items while working with photovoltaic modules 4 0 MECHANICAL INSTALLATION 4 1 PLANNING AND DESIGN Before installation check to ensure all sub structure will accommodate expected system loads This includes and is not limited to roof foundations mechanical structure and mechanical connections e For roof installations utilize a fire resistant roof covering rated for the application Mechanical structures should not contact the module backsheet under any expected load conditions e Consider the following factors during system design which will influence performance 8 MENC solar modules produce the most power when they are pointed directly at the sun and should be tilted for optimum system performance b Proximity to obstructions such as walls buildings trees groundcover snow cover or dust and debris that have the potential to shade or damage the modules c Elevated temperatures will decrease energy yield so designs should ensure adequate airflow across the back of the module d Allow a minimum spacing of 10 mm between modules for thermal expansion 4 2 MODULE INSTALLATION OPTIONS FOR MOUNTING LOCATIONS For mounting locations for clamps or bolt for specified load please refer to Table on page 5 e Each module should be mounted using four bolts through the mounting holes on the rear side of the module or with four clamps over the
12. ation in a variety of climates EC61730 certified by T VS D to ensure electrical safety Certification e Stringent outgoing quality acceptance criteria benchmarked to industry standards UL1703 listed by CSA for Canada and US Fire Resistance Rating Class C SR PV CYCLE wy US w UL 1703 Certified MEMC Modules are certified by Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 9 of 13 7 0 MECHANICAL AND ELECTRICAL PARAMETERS AND SPECIFICATIONS 7 1 SILVANTIS P290 DETAILS Silvantis P290 P280BCC P285BCC Multi crystalline Modules P280BMC P285BMC P290BCC P295BCC P300BCC P305BCC P290BMC P295BMC P305BMC TEMPERATURE COEFFICIENTS AND PARAMETERS 4722 0 45 Temperature Coefficient of Voc C 0 33 Temperature Coefficient of Isc C 40 066 4010 85 Maximum System Voltage V 1000 UL amp IEC Limiting Reverse Current A 8 40 Maximum Series Fuse Rating A 15 Power Range W 0 5 Temperature coefficients may vary by 10 ELECTRICAL CHARACTERISTICS Model P280BMC P285BMC 290 280 285 260 Open Circuit Voltage Voc V 44 0 44 4 44 7 Short Circuit Current Isc A 8 60 8 65 8 71 Module Efficiency 14 3 14 6 14 8 B 34 7 34 9 35 4 Power Point Current 3 08 8 16 8 20 All electrical data at STC 1000W m AM1 5 25 C Electrical characteristics measurem
13. chanical installation 5 0 ELECTRICAL INSTALLATION 5 1 PLANNING AND DESIGN e All modules are manufactured with a sealed junction box and pre attached cables and locking connectors These components should not be modified or tampered with in any way NOTE Installers should ensure that the polarized locking connectors are from the same supplier when connected on the same string We do not recommend mixing polarized interlocking connectors from different manufacturers including connections at the inverter combiner boxes and modules Ensure connectors are clean and dry before establishing connection Ensure that all wire fusing and disconnects are appropriately sized for the system design according to national regional and local codes Electrical characteristics are within plus or minus 596 of rated values for Isc Voc Impp and Vmp Pmax ranges between 0 5W at standard test conditions STC However modules will operate under conditions which may be significantly different than STC MEMC suggests multiplying specified ratings by a minimum of 1 25 or more when specifying the system and balance of system components 1 25 Refer to local codes before planning and design of the system e Determine the maximum number of modules connected in series using the following formula Ns Vmaxs Where N equals the maximum modules in series equals the maximum system voltage Please refer to module data sheet for
14. e frame or Clamps can be mounted at the Fixed Clamp Mount location as shown in the color code key Bolt Mount Locations FRONT VIEW Clamp Mount Locations Clamp mount allowable range BACK VIEW Maximum Front Load 5400 Pa or 113 psf Maximum Rear Load 2400 Pa or 50 psf CASE 2 Structural rails running parallel to the length of the module should be fixed via bolts at the mounting holes on each long side frame or Clamps can be mounted anywhere within the Clamp Mount Range as shown in the color code key X Fixed Clamp Mount Clamp Mount Locations Clamp mount allowable range Case 3 option 1 a r B BACK VIEW OR Case 3 option 2 BACK VIEW Maximum Front Load 2400 Pa or 50 psf Maximum Rear Load 2400 Pa or 50 psf CASE 3 Structural rails running perpendicular to the length of the module should be fixed via bolts at the mounting holes between each long side frame or Clamps can be mounted anywhere within the Clamp Mount Range as shown in the color code key m Clamp Mount Range Fixed Clamp Mount location A 394 mm Clamp mount allowable range B 248 mm 444 mm Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 6 of 13 e Additional mounting holes may not be drilled in the frame glass or backsheet Ensure that frame weep holes see Appendix 8 1 are not obstructed by the me
15. ent tolerance is 5 and power is 0 5W IV CURVES AT MULTIPLE IRRADIANCES 25 ERI o Current A N oO 0 5 10 15 20 25 30 35 40 45 50 Voltage V 1000 W m 800 W m 400 W m 600 W m 200 W m MEMC P295BMC 295 45 1 8 95 15 1 35 7 8 26 MEMC MEMC MEMC MEMC MEMC MEMC MEMC MEMC P305BMC P280BCC P285BCC P290BCC P295BCC P300BCC P305BCC 300 305 280 285 290 295 300 305 45 8 45 4 44 0 444 447 45 1 45 8 45 4 9 00 9 05 8 60 8 65 8 71 8 95 9 00 9 05 15 4 15 6 14 3 14 6 14 8 lou 15 4 15 6 36 0 36 3 34 7 34 9 35 4 35 7 36 0 36 3 8 34 8 41 8 08 8 16 8 20 8 26 8 34 8 41 IV CURVES AT MULTIPLE TEMPERATURES 1000 W m 10 Current A 0 5 10 15 20 25 30 35 40 45 50 Voltage V 15 C 35 C 25 45 Copyright 2012 Electronic Material Installation Manual MEMC Silvantis P290 M320 7 0 MECHANICAL AND ELECTRICAL PARAMETERS AND SPECIFICATIONS 7 1 SILVANTIS M320 DETAILS Silvantis M320 M305BCC M310BCC Mono crystalline Modules M305BMC TEMPERATURE COEFFICIENTS AND PARAMETERS eer 48 0 2 Temperature Coefficient of Pmax C 0 46 0 34 0 05 40 to 85 1000 UL amp IEC 9 10 15 0 45 Temperature coefficients may vary by 10 ELECTRICAL CHARACTERISTICS 10 of 13 M315BCC M320BCC M825BCC M330BCC M315BMC M320BMC M325BMC M330BMC ELECTRICAL
16. f you need additional information about the safe proper use and handling of MEMC photovoltaic module products please contact MEMC 2 0 PHOTOVOLTAIC MODULES PRODUCT CODE Silvantis P290 P280BCC P285BCC P290BCC P295BCC P300BCC Masc P285BMC P290BMC P295BMC P300BMC P305BMC Silvantis M320 M305BCC M310BCC M315BCC M320BCC M325BCC M330BCC BMC M310BMC M315BMC M325BMC 3 0 MODULE OVERVIEW MEMC Silvantis Photovoltaic modules consist of a series of electrically interconnected crystalline silicon solar cells that are sealed within a laminated sheet of tempered glass superstrate and EVA back sheet substrate These laminates are secured inside an aluminum frame to provide rigidity and a means for attachment to mounting sub structures The frames should not be modified or removed Tempered glass may have AR coating e Photovoltaic modules are designed and constructed for outdoor use Do not submerge modules in water at any time e The front and back of each module is labeled with a product bar code Do not cover remove or deface these labels This may be required for product identification e Damage to the glass surface or the anti reflective coating can impact the power output and overall efficiency of the system Scratches handling marks or any damage to the glass surface must be avoided For best performance and to avoid potential issues keep the fro
17. ion with a maximum rating of 15A MEMC recommends the use of DC rated fuses or overcurrent protection devices with the appropriate maximum voltage rating Do not connect modules directly to a parallel bus The cross sectional area of cable and the connector type must be selected to align with the overall system design and should Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 7 of 13 include the maximum short circuit current of the system maximum operating temperatures and cable run lengths For field connections use at a minimum 12 AWG 4 mm wires insulated for a minimum of 85 C Use copper wire only 5 8 GROUNDING e The module frame includes several labeled grounding holes These holes may not be used for any other purpose MEMC recommends a Burndy BGBL 4 AL lay in lug for grounding Only Negative grounding circuits negative polarity to ground shall be used within the array design Attach the grounding lug to the frame as follows Step 1 Use stainless steel hardware Step 2 Place the grounding lug over the grounding hole on the exterior of the module frame Step 3 Place a star washer directly between the bottom of the grounding lug and the exterior surface of the frame Step 4 Place an MA or 8 32 bolt through the lug star washer and frame grounding hole Step 5 Secure the lug to the frame using a flat washer split washer and M4 or 8 32 nut Step 6 Torque the bolt
18. mension tolerance range for Cable length Tolerance 2 5 mm 52 5 mm A x3 mm B 3 mm and C 0 3 mm Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 8 0 APPENDIX 8 2 MODULE ILLUSTRATIONS Center Mount Option 8 8 CLAMP DRAWINGS MINIMUM CLAMP DEPTH MINIMUM SUPPORTING WIDTH Dimension INCH Module Clip Dimensions A 6 35 0 3 Bee etc Minimum Support Dimensions C WS 0 6 PD a o Bolt Stack Details L SSS 22 SAT MNS MINIMUM SUPPORTING DEPTH 12 of 13 1 4 20 BOLT FLAT WASHER MODULE FRAME RACKING STRUCTURE FLAT WASHER LOCKING WASHER 7 420 NUT SUPPORTING SURFACE Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 13 of 13 8 0 APPENDIX 8 4 PRE MOUNTED CABLES AND CONNECTORS Mounting Configuration Pre mounted cables Pre mounted connectors TUV PV1 F amp UL PV wire locking polarized connectors oss section 4 0 mm 4 mm 30 A at 85 C IEC 25 A and UL 20 A 1000 V DC UL 1000 V 1000 V DC UL 1000 V 40 C to 90 C 40 C to 85 C TUV 2PFG amp UL PV wire EN 50521 amp UL for PV sys Copyright 2012 MEMC Electronic Material Controlled Document MEMC Electronic Materials Inc Void if Printed or Electronically Duplicated Information contained herein may not be revealed or disclosed to unauthorized persons or sent outside MEMC without prior
19. nt side of the module clean and free of obstructions including covers tape adhesives paint and debris 3 1 MAINTENANCE Check modules glass and frames for damage Regularly inspect all MEMC Solar Modules for safe electrical connections sound mechanical connections and freedom from shading and corrosion If dirt or debris buildup becomes excessive periodically clean the glass only with a soft cloth using mild non abrasive detergent and water When using mild cleaning liquids a neutral pH in the range of 6 0 to 8 0 is recommended Chemicals with pH less than 6 0 or greater than 8 0 should be avoided as it may damage the glass surface and or the AR coating Please consult with system designer to decide the cleaning and inspection frequency according to local environmental conditions Do not power wash or use harsh cleaning materials or objects such as scouring powder steel wool scrapers blades or other sharp instruments to clean the glass surface of the module Use of such materials will invalidate the product warranty WARNING Use caution when cleaning the back surface of the module to avoid penetrating the substrate materials Copyright 2012 MEMC Electronic Material Installation Manual MEMC Silvantis P290 M320 3 of 13 3 2 STORAGE UNPACKING AND HANDLING Packaged modules must be stored in a dry and ventilated area Packaged modules must not be exposed to rain snow hail or other environmental conditions that may compromise
20. r module components Do not use mirrors lenses or other techniques to magnify or concentrate additional light on the module 6 0 DISCLAIMER OF LIABILITY The information in this manual is based on MEMC s knowledge and experience and is believed to be accurate However all information in this manual without exception including recommendations and specifications does not constitute a warranty expressed or implied MEMC reserves the right to change the manual the module or specifications without prior notice The product warranty shall be VOID if handling and installation of the product does not conform to MEMC S written installation instructions or if the product has been reworked repaired or otherwise modified in a manner not previously authorized by MEMC in writing or if the product is installed in an environment for which it was not designed MEMC shall not be liable for special indirect consequential contingent or incidental damages related to or arising from the installation or use of the product by purchaser under any circumstances MEMC assumes no responsibility for any product application or use which is beyond direct control MEMC does not accept responsibility and expressly disclaims liability for loss damage or expense arising out of or in any way connected to such installation operation or maintenance of the product International Product Certifications EC61215 certified by T V S D to ensure long term oper
21. ractices should be followed All installations must be performed in compliance with all applicable regional and local electrical codes or other national or international electrical standards Use insulated tools during installation troubleshooting and maintenance of photovoltaic modules Wear suitable protection to prevent direct contact with module s electrical output and mechanical sharp edges Cover the front of the modules with an opaque material to stop production of electricity when installing or working with a module or wiring Modules connected in a series should not be disconnected under illumination Disconnecting modules under illumination may cause electrical arcing which may result in burns fires or other problems Follow industry best practices when commissioning trouble shooting disconnecting or connecting a PV system Trouble shooting should include planning checking disconnecting cause seeking replacement and record keeping Do not install or handle the modules or their components when they are wet or during periods of high wind Do not attempt to disassemble repair or open any part of the module including junction box or sub components Do not artificially concentrate sunlight on a module Do not install or handle any broken modules If a module is broken or the back sheet is torn contact with the surface or frame can cause an electrical shock Copyright 2012 MEMC Electronic Material Installation Manual
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