Monocrystalline Solar Module

LGXXXS1C(W, K)-A3

Installation Instructions

Table of Contents

Revisions Table

1

CONTENTS

1. Safety 2

2. Before & After Installation 3

3. Electrical Installation 4

4. Mechanical Installation 5

5. Product Specifications 8

6. Disclaimer of Liability / Disposal 9

7. Transporting and Storage 9

Date

2012.08.01

2013.04.20

1.0 (1st edition)

2.0 Add description ofMechanical Installation

Version RemarkDescription of change

Safety

2

Do not make holes in the frame or glass of themodule. It may decrease the strength of theframe or break the glass.

Do not touch the glass surface or frame of thesolar module after installation of the module. Itmay result in injury.

Do not locate a heavy object onto the module. Donot stand on or step on the module. Do not dropor suddenly lay down the module. It may result ininjury.

Do not scratch the coating surface of the frame. Itmay decrease the strength due to corrosion ofthe frame.

Do not concentrate sunlight on the modulesurface. It may result in damage of the product.

Do not apply a shock to the junction box of themodule or pull the cable. Do not remove thelabels attached to the module. It may result indamage of the product.

If the installing structure has a curved surfacee.g. arch type as shown in the below picture, donot forcefully modify the module in installationwhen connecting it with the structure. Pleaseinstall the module in the place where thestructure has been completely set up becausedeformation of the structure may causedeformation of the product when performinginstallation by using a crane, etc after assemblingthe module to the installing structure.

The instructions related to the safety indicated in thefollowing are for preventing unexpected danger ordamage in advance by safely and exactly using theproduct.

Non-compliance of the instructions may immediatelycause serious injury or death.

Non-compliance of the instructions may cause deathor serious injury to the user.

Non-compliance of the instructions may cause injuryor property damage to the user.

Do not contact with electrically active parts of thepanel, such as terminals, regardless ofconnection of the module. It may result in sparkor lethal electric shock.

Please don’t use the module with the brokenwindow or the torn back side. There is a dangerof electric shock.

Please perform works in the dry condition anduse only dry tools. Do not handle the wet panelswithout protection equipment. It may result insafety accident.

Damaged module must be treated with safetyprotection equipment. It may result in injury.

Do not approach the damaged or broken moduleunless you are an expert. It may result in seriousinjury.

Please use proper equipment, connector, wireand buttress for system configuration of themodule. It may result in damage or failure of theproduct.

Do not perform installation in rainy, heavily windyor snowy days. It may result in safety accident.

Module Module

Installing structure(bent type)

Installing structure(Stralght type)

Product Deformation Occurrence of space

3

Before & After Installation

• Wear a safety belt if working high above theground.

• Contact with electrically active parts of the panels,such as terminals, can result in burns, sparks andlethal shock whether the panel is connected ordisconnected.

• Care must be taken to avoid low tilt angles whichmay cause dirt to buildup on the glass against theframe edge.

• Dirt build-up on the surface of the panel can causeactive solar cells to be shaded and electricalperformance to be impaired.

• Always keep the back surface of the panel freefrom any foreign objects or structural elementswhich could come into contact with the panel,especially when the panel is under mechanicalload.

• For permission to use mounting methods notdescribed in the Mounting Guide please consultLG Solar. Failure to do so will void the warrantyand panel certification.

After Installation• Plug the connector in tightly and ensure that the

wiring properly works.

• It is advisable to conduct periodic inspection of thepanels for damage to front glass, back sheet,frame, junction box, or external electricalconnections.

• Check electrical connections for loose connectionsand corrosion.

• PV panels can operate effectively without everbeing washed, although removal of dirt from thefront glass can increase output.

• Water, ethanol or a conventional glass cleanserwith a micro-fiber cloth can be used for regularwashing or rinsing of the front glass to removedust, dirt or other deposits.

• No aggressive and abrasive cleansers orchemicals such as alkali chemicals includingammonia based solution should ever be used onthe treated front glass.

• Always wear rubber gloves for electrical insulationwhile maintaining, washing or cleaning panels.

• Deposits of foreign material on the frame surfacecan be cleaned using a wet sponge or cloth anddried in air or by using a clean chamois.

• Perform the wiring work by connecting theconnector and wires to the stand away from theroof or ground.

Before InstallationPlease carefully read this manual before installation.

• Solar module installation should be performed byan authorized installer for the safety andmaintenance of the system.

• All installation instructions should be clearlyunderstood before attempting installation.

• Do not twist, pull, or scratch the cable attached tothe solar module.

• Do not touch the solar module with bare hands. Itmay result in a burn or injury.

• Do not drop the solar module and cause anexcessive load on solar module.

• Do not disassemble the solar module.

• After installation or repair, check whether solarmodule operates properly or not.

• In case the currently used solar module or theparts applied to the solar module have beenreplaced, check whether the changed solar moduleis properly operated or not. The newly replacedsolar module and its parts must be the same solarmodule(module name) and parts with the currentsolar module.

• Please contact the local office to confirm theregulations and to obtain permission.

• Do not let anyone approach the solar module whohas little knowledge of solar modules or on themeasures to take when solar modules aredamaged in order to avoid the risk of injury orelectrical shock.

• Do not locate the solar module horizontally, as thismay cause dirt or white efflorescence (glassdeformation)

• Panels produce voltage even when not connectedto an electrical circuit or load.

• Panels are intended for outdoors, land basedapplications only. Panels are not intended for useindoor use or application on moving vehicles of anykind.

• Reflection from external environments such assnow, water or other surfaces can increase thepower generated by the panel.

• Industry standard rated specifications are made atconditions of 1000W/m2 irradiance and 25°C(77ºF) solar cell temperature. Colder temperaturescan substantially increase voltage and power.

• Keep the solar module and system away fromchildren when installing.

• Keep the module packed in the carton until thetime of installation.

• Make sure flammable gases are not generatednear the installation site.

• Do not work alone. Please work as part of a teamof two or more people.

• Even partial shadowing of a panel can substantially reduce system output and should always be avoided.

--

Parallel connection for more current

4

Electrical Installation

Parallel Connection• The solar modules may be combined in parallel to

produce the desired current output.

• When modules are combined in parallel, the totalcurrent is equal to the sum of currents from eachmodule.

• The voltage of each module connected in parallelshould be same.

• When connecting plural strings of modules inparallel every series string or solar module must befused prior to combining with other strings. By pass diodes are factory installed in the solarmodules.

• Please refer to the applicable regional and localcodes for additional fusing requirements andlimitations on the maximum number of solarmodules in parallel.

• Maximum parallel strings without proper measures,e.g. fuse 20A and/or blocking diode : 1 stringParallel configuration is not limited if propermeasures are taken to block the reverse currentflow, e.g. fuses for the protection of the moduleand cables from over-current and/or blockingdiodes for prevention of unbalanced string voltage.

• A multiplying factor is required for increased outputof the PV modules. Under normal conditions, a PVmodule is likely to experience conditions thatproduce more current and/or voltage than reportedat standard test conditions. Accordingly, the valuesof Isc and Voc marked on this PV module shouldbe multiplied by a factor of 125% whendetermining component voltage ratings, conductorampacities, fuse sizes, and size of controls to thePV output.

• Depending on national directives additional safetyfactors might be applicable for overcurrentprotection.

Caution• Avoid all electrical hazards when installing, wiring,

operating and maintaining a panel.

• Do not use panels of different electrical or physicalconfigurations in the same system.

• Match the polarities of cables and terminals whenmaking the connections; failure to do so may resultin damage to the panel.

• When reverse currents can exceed the valuemarked on the name plate, a properly rated andcertified over-current device (fuse or circuitbreaker) must be connected in series with eachpanel or string of panels.

• The rating of the over-current device shall notexceed the maximum series fuse rating marked onthe name plate.

• The panel contains factory installed bypass diodeslocated inside the junction box.

• When installing the system, it is recommended toinstall the lightning rod to protect the system.

• The junction box should not be opened. Openingthe junction box may void the warranty.

• Panels with a suspected electrical problem shouldbe returned to LG Electronics for inspection andpossible repair or replacement as per the warrantyconditions provided by LG Electronics.

• The extended cable to connect each PV moduleshould follow the Japanese Cable Maker’sAssociation Standard (Nihon Densen KougyoukaiKikaku).

Electrical Connections• Modules may be connected in series and/or

parallel to achieve the desired electrical output aslong as certain requirements are met.

• Please use only the same type of modules in acombined source circuit.

• Do not disconnect the module under load.Shock hazard can occur near the solar modulesconnection means.

Series Connection• The solar modules may be wired in series to

produce the desired voltage output.

• The current of each module connected in seriesshould be same.

• The maximum number of series connectedmodules can be determined by basis on max.system voltage, the 125% safety factor, and themodule Voc which can be checked in “ProductSpecifications” in this document.

• Do not exceed 80% of maximum system voltage.

• The maximum solar module configuration can befound in “Product Specifications”.

Series connection for more voltage

5

Mechanical Installation

Module Mounting• The LG Electronics’ (LGE) Limited Warranty for

solar modules is contingent upon modules beingmounted in accordance with the requirementsdescribed in this section.

• The solar modules are in Application Class A andhave the Safety Class II. Therefore they can beoperated in systems with 120 V DC and higher.General access is not restricted.

Site ConsiderationLGE solar modules should be mounted in a loca-tionthat meets the following requirements.Operating Temperature• Maximum Operating Temperature: +90°C (194°F)

• Minimum Operating Temperature: -40°C (-40°F)Design Strength• Snow loads(Front side): 5400 Pascal.

• Wind loads(Rear side): 2400 PascalExcluded Operating Environments• The solar modules from LG Electronics can be

operated in a location where they could come incontact with salt water or ammonia, if they havebeen tested successfully for these operatingconditions. Please see related certificates. Pleaseget a release from LG Electronics for increasedconditions.

Mounting MethodsGeneral Information• Select the appropriate orientation to maximize

sunlight exposure.

• In order to prevent water from entering the junctionbox, which could present a safety hazard, moduleshould not be mounted such that the front/topglass faces downward.

• Clearance between the solar module frames andstructures such as roofs or ground is required toprevent wiring damage and to allow air to circulatebehind the solar module. The recommendedstandoff height is a minimum of 100mm.

• When installed on a roof, the solar module must bemounted over a fire-resistant roof covering ratedfor the application. The fire resistance of the solarmodule from LG Electronics is class C afterANSI/UL790.

• The solar module is only IEC listed for use when itsfactory frame is fully intact.

• Do not remove or alter the solar module frame.

• Creating additional mounting holes may damagethe solar module and reduce the strength of theframe.

Electrical Installation

General Wiring• LG Electronics recommends that all wiring be

double insulated with a minimum rating of 90°C(194°F).

• All wiring should use a flexible copper (Cu)conductor.

• The minimum size should be determined by theapplicable codes.

• We recommend a size not smaller than 4mm2.

Earth Grounding• The solar modules from LG Electronics meet the

conditions of safety class II. Therefore grounding isnot mandatory. However grounding isrecommended. Also equipotential bonding must berealized. The national directives must berespected.

• Specific information on the solar moduledimensions and location of grounding holes isprovided in ‘Product Specifications’.

• One M4 stainless steel bolt, one nut, one springwasher, two flat washers, one cup washer, one starwasher and 12 AWG Cu wires are recommendedper solar module.

• There is an earth hole in the center of the moduleframe. Using this hole, an earth conductor and thesolar module frame may be recommended toconnected and earthed as the below drawing.

• To prevent electric shock and fire, a protectiveground must be done on the frames of solarmodules and arrays although the solar modulesfrom LG Electronics meet the conditions of safetyclass II. The national directives must be respected.

Moduleframe

Bolt

Flat washer

Star washer

Cup washer

Flat washer

Spring washer

Nut

Groundingwire

6

Mechanical Installation

• A 6mm gap between module frames should beallowed to avoid tension from thermal expansion.

• The solar module may be mounted using thefollowing methods: (*Torque:8~12Nm )

• When installing modules in heavy snow areas, it isrecommended to be taken an appropriatecountermeasure to prevent possible damages tothe lower side frame by slipping snow . (e.g. attach supporting part to the lowest modules)

Bolt

Flat washer

Flat washer

Nut

Support

More than 40mm

More than 10mm

More than 10mm

Mounting by using clip or clampsThe module may be fastened to a support usingclips or clamps on both the long edge and theshort edge of the modules.Specific information on the solar moduledimensions and location of clipping is provided inProduct Specifications .

Solarmodule

Roof

Supportingpart

Mounting by using frame bolts holes• Secure the solar module to the structure using the

factory mounting holes.

• Four M6 stainless steel bolts, four nuts, four springwashers, and eight flat washers are recommendedper solar module.

• The module may be fastened to a support usingboth the outer and inner bolt holes of the frame.

• Each module should be securely fastened at aminimum 4 points on two opposite sides.

• Specific information on the solar moduledimensions and location of mounting holes isprovided in ‘Product Specifications’.

• Tighten the bolt securely using this combination.Place spring washer between Flat washer and Nut.

Module frame

Spring washer

7

Mechanical Installation

LGXXXS1C(W, K)-A3

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270mm 270mm

Use four mounting holes on two opposite sides.

Use four clamps on the long frame.

Use four clamps on the short frame and

two clamps at the center of long Frame.

Clamping Range(230mm)

Clamping Range:From module Edge

to 270mm

Clamping Range:From module Edge

to 120mm

Center ± 100mm

Center ± 100mm

Use four clamps on the Short frame.

This method is not tested by IEC/UL.

This installation is allowed in the following cases: 1. Slope roof: If module is installed parallel to the rooftop.2. Flat roof: If installed with an additional stand such as wind

shield or deflector.

8

Product Specifications

- Electrical and Mechanical Properties(Rated electrical characteristics are within 10 percent)Standard Test Condition(STC) : Irradiation 1,000W/m2, Cell temp. 25°C, AM1.5

Note : *Relative efficiency reduction by respect to irradiance*MC4 formal name : PV-KST4 / 6II-UR, PV-KBT4 / 6II-UR

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LGXXXS1C(W, K)-A3

Cross-sectional drawings

Unit: mm / in.

Long side frame Short side frame

- Dimensions of Modules

9

Disclaimer of Liability / Disposal

Disclaimer of Liability• Since the use of this Safety, Installation and

Operation instructions and the conditions ormethods of installation, operation, use andmaintenance of the panel are beyond the control ofLG Electronics, LG Electronics does not assumeresponsibility and expressly disclaims liability forloss, damage, injury or expense arising out of or inany connected with such installation, operation,use or maintenance of the panel.

• LG Electronics assumes no responsibility for anyinfringement of patents or other rights of thirdparties that may result from use of the panel. Nolicense is granted by implication or otherwise underany patent or patent rights..

DisposalPlease contact us at the address given overleaf ifyou have any queries related to the disposal orrecycling of solar modules from LG Electronics.

Transporting and Storage• Do not loose the banding, when module is

transported by truck, ship and etc.In case of loose banding, module will be shaken,which may cause damage, like glass breaking.

• Do not stack more than three pallets. Just single ordouble stacking is allowed.Severe stacking can give stress to the module andmay cause product damage.

LG Electronics Deutschland GmbHBerliner Straße 93 D-40880 Ratingen, GermanyContact: service-solar@lge.dehttp://www.lg-solar.com

This document is subject to change without notice.LG, LG logo and Life's Good are trademarks of LG Electronics, Inc. worldwide. Trademarks andintellectual properties of LG Electronics, Inc. are protected by international copyright laws.

Document: II-A3-IEC-V2-EN-201304