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Installation Manual: MEMC Silvantis 60 cell PV Modules 8 of 15 -i <br />4.5 MECHANICAL INSTALLATION WARNINGS <br />Installation and maintenance should be performed by qualified personnel only. <br />Use insulated toolsduring installation, troubleshooting and' maintenance of photevoltaic modules. <br />Installers should adhere to all applicable local, regional, and national codes·and regulations when designing and constructing <br />the photoveltaic system. <br />Do not stand or walk on any surface of the modules. <br />Precaution should b.etaken to avoid damagetothe glass surface with or without anti-reflecti.vecoating dueto improper <br />handling during installation. <br />Mechanical structures should not contact the module backsheet under any expected load conditiohs <br />Additional mounting holes may not be drilled in the frame, glassor backsheet. <br />Ensure that frame weep holes (see Appendix 8.1) are not obstructed by the mechanical installation. <br />5.0 ELECTRICAL INSTALLATION <br />5.1 PLANNINGAND DESIGN <br />• All modules are manufactured with a sealed junction box and pre-attached cables and locking connectors.These <br />components should not be modified or tampered with in·any way. <br />NOTE: Installers should ensure that the polarized lockingconnectors are from the same supplier when connected on the <br />same string. Wedo not recommend mixing polarized Interlocking connectors fram different manufacturers-including <br />connections atthe inverter, combiner boxes, and modules. <br />Ensure connectors are clean and dry before establishing connection. <br />Ensurethatall wire, fusing and disconnects are appropriately sized for the system design according to national, regional, and <br />local codes. <br />Electrical characteristics are within plus or minus 5% of rated values for Isc, Voc, Impp and Vmpp. Modules may operate <br />underconditions which may be significantly different than STC. MEMC suggests multiplying specified ratings by a minimum <br />of 1.25*or more when sped fying the system and balance of system components. 1.25* Referto local codes before planning <br />anddesign of thesystem. For detailed electrical characteristics, please refer to Section 7.0, page 10 through 11 of this <br />Installation Manual. <br />Determine the maximum number of modules connected in series using the followjng formila: Ns =Vtnax / VOC <br />Where: <br />Ns equals the maximum modules in series <br />vmat equals.the maximum system voltage <br />Vmax is limited to a maxim u m of 1000 V for IEC and 600 V for UL <br />Vocm equals the module open circuitvoltageat coldest conditions for the site (refer to local codes) <br />WARNING: Installers should adhereto all applicable local, regional, and national codes and regulations when designing and <br />constructing the photovoltaicsystem. <br />NOTE: In colder climates, it may be necessary to further reduce the maximum number Of modules in series by using Vocm <br />attlfe minimum expected operating temperatwre. <br />5.2 MODULEWIRING <br />The module includes Wires and polarized locking connectors from thejunction box on the back of die module.The wires <br />have su Mcient length to connect to adjacent modules iii either a poi tiait or landscape configuiation. Field replacement of <br />connectors or cables must be avoided and it· will invalidate the product warranty. Polarized locking cohnectors of thesame <br />type and make are needed for all series string wiring. The maximum operating temperature of wires and connectors should <br />neta-ce-ed 85°C. <br />© Copyrig h t 201 2 MEMC Electronic Marerial