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Installation Manual: MEMC Silvantis 60 cell PV Modules 8 of 15 <br />4.5 MECHANICAL INSTALLATION WARNINGS <br />Installation and mainfenance should be performed byiqualified personnel only. <br />Use insulated tools during installation, troubleshooting and maintenance of photovoltaic modules. <br />Installers should adhereto all applicable local, regional, and national codes and, regulations when designing and constructing <br />the photevoltaic system. <br />Do notstand or walk on any surface of the modules. <br />Plecaution should be taken te avoid damage to theg'lass surface with or without anti-reflective coating dueto improper <br />handling during installation. <br />Mechanical.structures should not contact the module backsheet under any expected load conditions. <br />Additional mounting holes may not be drilled in the frame, glass or backsheet. <br />Ensure that frame weep holes (see Appendix 8.1) are notobstructed by the mechanical installation. <br />5.0 ELECTRICAL INSTALLATION <br />5.1 PLANNINGANDDESIGN <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 thatthe polarized locking connectors arefrom the same supplier whenconnected on the <br />same string. We do not recommend mixing polarized interlocking connectors from different manufacturers-including <br />connections at the inverter, combiner boxes, and modules. <br />Ensureconnectors are clean and dry before establishing connection. <br />Ensure thatall 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 minus5% of rated values for Isc, Voc, lmpp and Vmpp. Modules may operate, <br />under conditions which may be significantly different than STC. MEMC suggests multiplying specified ratings by a minimum <br />of 1.25* or more·'when speci fying the system and balance,of system components. 1.25* Refer to local codes before planning <br />and design of the system. For detailed electrical characteristics, please refer to Section 7.0, page 10 through 11 of this <br />Installation Manual. <br />Determine the maximum numberof modulesconnected in series using the following formula: Ns = Vmax /Voc <br />Where: <br />Ns equals the maximum modules in series <br />Vmax equals the maximum system voltage <br />Vmax is limited lo a maximum of 1000 V for IEC and 600 V for UL <br />Vulmell.udIS L|le 11-ludule upell ti,Luil vulldtie dl l.w|debl:culldiliulls ful l|-le bile (lefe, lu lutal tudes) <br />WARNING: Installers should adhere to,all applicable local, regional, and national codes and regulations when designing and <br />constructing the photovoltaic system. <br />NOTE: In colder climates, it may be necessary to further reduce the maximum number of modules iniseries by using Voc <br />:at the minimum expected operating temperature. <br />5.2 MODULEWIRING <br />The module includes wires and polarized locking connectors from the junction box on the back of the module.The wires <br />have sw fficientlength to connect to adjacent modules in either a pot·trail or landscape configuiation. Field replacementof <br />connectors or cables must be avoided and it will invalidate the product warranty. Polarized locking connectors of the same <br />type and make are needed for all series string wiring,The: maximum operating temperature of wires and connectors should <br />not exceed 850C <br />© Copyright Z012 MEMC Electronic Material <br />1 .- <br />1