Panasonic VBHN330SA16 General Installation Manual

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Contents

5 Panasonic does not provide a warranty forclamps. The module warranty Panasonicprovides shall be voided if clamps selectedby the customer are of an impropermaterial or sizeOperating ConditionsPanasonic requires that modules are operatedwithin the following Operating Conditions:1) Terrestrial applications only-no outer spaceor Special Conditions (see below).2) The operating temperature must be within–40°C (-40 °F) to 85°C (185 °F).3) The wind pressure load of the installationsite should be less than 2,400N/m2(50PSF)4) Some environmental conditions could apply.Please refer to Panasonic’s warrantyexclusions.Special Conditions1) The operating temperature and installationplace are different from the recommendedOperating Conditions.2) Salt damage is severe at the installationplace.3) Hail and snow damage is excessive at theinstallation place.4) Sand and dust damage is excessive atthe installation place.1) Air pollution, chemically active vapors, acidrain, and/or soot, etc. are excessive atthe installation place.SPECIFICATIONSNotes on Specifications1) Rated electrical characteristics are within –5% to +10% of the values measured atStandard Test Conditions (STC). STCconditions are; Irradiance of 1000W/m2,25°C cell temperature, and solar spectralirradiance per IEC 60904-3. Note: At thetime of shipment, Panasonic guarantees theoutput level of its modules to be -0/+10%against Rated Power in SPECIFICATIONSbased on factory inspection at STCconditions.2) Under real conditions, a photovoltaic modulemay experience conditions that producemore current and/or voltage thanreported at Standard Test Conditions.Therefore, the Isc value of modules shouldbe multiplied by a factor of 1.25 todetermine ampacity. An additional factor of1.25 may be required for sizing conductors,fuses, disconnects, etc. Please refer tosection 690.8 of the National Electric Code(NEC) for guidelines. The Voc must befactored according to the lowest recordedoperating temperature recorded for thelocation where the modules will be installed.Please refer to section 690.7 of the NECfor more information regarding voltagetemperature factors.3) The current output for the modules shownin the SPECIFICATIONS section ismeasured at Standard Test Conditions.These conditions may not be frequentlyobserved in actual practice.Mechanical Loading The modules should be mounted at thefour (4) quarter points by the meansshown in Figure 2. This method offers a maximum load of2,400 N/m2 (50PSF) in a static stateon the module surface. Note: This mechanical loading value wastested using the mounting device specifiedin section “Notes on Installation”.UNPACKING AND HANDLING Do not hit the back sheet of a module bythe connector when unpacking and handling. To avoid the damage of the back sheetby connector, fix the cables to the framewith tape after unpacking. (see below) After fixing the cable to the frame, do notstack modules to avoid the damage of thecable. Do not handle modules by their cables orjunction box. Handle them by the framewith both hands in any situation.WIRINGGeneral All wiring should be done in accordancewith applicable electrical codes. Wiring methods should be in accordancewith the NEC in USA or CEC in Canada. A qualified, licensed professional should doall wiring. Wiring should be protected to help ensurepersonal safety and to prevent damage. All modules connected in series should beof the same model number and/or type. Do not connect modules in parallel withoutusing connection devices that connect toappropriate FUSE for each series string oreach module. Do not disconnect terminals while modulesgenerate electricity and connect electricalload to avoid the hazard of electrical shock. To avoid the hazard of electric shock andsparks, please connect each cable afterconfirming the polarity of them is correct. Cable conduits should be used in locationswhere the wiring is inaccessible to childrenor small animals.Module Wiring The number of modules that can be wiredin series is recommended to be seven(7) or fewer. If connecting eight (8)modules in series, check local temperatureconditions and follow the National ElectricCode (690.7) to ensure compliance withmaximum voltage limitations. Modules are not designed for “off-grid” orbattery charging systems, because of theiroperating voltage. Therefore, it is notrecommended to use them for chargingbatteries. These modules contain factory installedbypass diodes. If these modules areincorrectly connected to each other, thebypass diodes, cable, or junction box maybe damaged.Array Wiring The term “array” is used to describe theassembly of several modules on a supportstructure with associated wiring. Use copper wire which insulation is sunlightresistant and can withstand the maximumpossible system open circuit voltage. Interconnection of modules must beperformed in a professional fashion. Wiresshould be secured and only reasonableslack should be allowed. Check local codes for requirements.Earth Ground Wiring A module with exposed conductive parts isconsidered to be in compliance with UL1703 only when it is electrically groundedin accordance with the instructions presentedbelow and the requirements of the NationalElectrical Code. All modules should be grounded. Allstructures or metallic components in directcontact with the modules or electric wiresshould be properly grounded too. To avoidthe hazards of electric shock or fire,modules should be grounded by the frame