LG Electronics Lawn Mower K G3 User Manual

Monocrystalline Solar Module  
LGXXXS1C(W, K)-G3  
Installation Instructions  
Safety  
The instructions related to safety and use indicated in  
the this installation manual are intended for the  
prevention of unexpected danger, damage, or failure.  
Do not scratch the coating surface of the frame.  
Scratches may decrease the total solar output  
due to corrosion of the frame.  
Do not artificially concentrate sunlight on the solar  
module surface. Failure to comply may result in  
product damage or failure.  
Non-compliance with the instructions may cause  
product damage, product failure, and/or serious  
bodily injury or death.  
Do not apply a shock to the junction box of the  
module or pull the cable. Do not remove the  
labels attached to the module. Failure to comply  
may result in damage of the product.  
If the installing modules on curved surface, (e. g.  
arch type), as shown in the below picture, do not  
forcefully modify the module in the installation  
when connecting it with the structure. Only install  
the module in the place where the structure for  
the panels has been properly set up. An improper  
structure may cause deformation of the panels.  
Panels may also be damaged by unapproved  
installation methods such as the use of a crane.  
Do not contact electrically active parts of the  
panel, such as terminals, without appropriate  
safety gear. Contact may result in lethal spark or  
electric shock.  
Do not use or install if the module is broken or torn.  
Failure to comply may result in electric shock.  
Perform all work in dry conditions and use only dry  
tools. Do not handle wet panels without appropriate  
protection equipment. Failure to comply may result  
in accident or death. accident or death.  
Damaged modules must be treated with safety  
protection equipment. Failure to comply may  
result in serious bodily injury or death.  
Do not approach the damaged or broken module  
unless you are an authorized or qualified expert.  
Failure to comply may result in serious bodily  
injury or death.  
Module  
Module  
Installing structure  
(Stralght type)  
Installing structure  
(bent type)  
Use proper equipment, connectors, wires and  
buttresses for the installation of the module. Failure  
to comply may result in product damage, product  
failure or bodily injury.  
Product Deformation  
Occurrence of space  
Installation during rain, heavy wind or snowy day  
may result in bodily injury or death.  
Holes in the frame or glass of the module may  
decrease the strength of the frame or break the  
glass.  
Do not touch the glass surface or frame of the solar  
module after installation of the module. It may result  
in injury or death.  
Heavy objects must be kept off of the solar module.  
Do not stand on or step on the module. Do not drop  
the module. Failure to comply may result in product  
damage, product failure or bodily injury.  
2
Before & After Installation  
• Dirt build-up on the surface of the panel may cause  
active solar cells to be shaded and electrical  
performance to be impaired.  
Before Installation  
Please carefully read this manual before installation.  
• Contact with electrically active parts of the panels,  
such as terminals, may result in burns, sparks and  
lethal shock whether the panel is connected or  
disconnected.  
• Panels produce voltage even when not connected  
to an electrical circuit or load.  
• Always keep the back surface of the panel free  
from any foreign objects or structural elements  
which could come into contact with the panel.  
• Solar module installation and maintenance must be  
performed by qualified and authorized installer.  
• All installation instructions should be read and  
understood before performing any installation.  
• Do not twist, pull, or scratch the cable attached to  
the solar module.  
• Do not touch the solar module with bare hands.  
Failure to comply may result in a serious burn or  
injury.  
After Installation  
• Plug in the connector tightly and ensure that the  
wiring properly works.  
• Conduct periodic inspection of the panels for  
damage to front glass, back sheet, frame, junction  
box, or external electrical connections.  
• Check electrical connections for loose connections  
and corrosion.  
• Do not drop the solar module or place weight on a  
solar module.  
• Removal of dirt from the front glass can increase  
output.  
• Do not disassemble the solar module.  
• After installation or repair, check that the solar  
module are operating properly.  
• In the event that the currently used solar module or  
parts have been replaced the newly replaced  
module and parts must have the same model  
name and parts as the previously installed solar  
module.  
• Secure all necessary permits and licenses to install  
the solar modules  
• Water, ethanol or a conventional glass cleanser  
with a micro-fiber cloth can be used for regular  
washing or rinsing of the front glass to remove  
dust, dirt or other deposits.  
• Aggressive and abrasive cleansers or chemicals  
such as alkali chemicals including ammonia based  
solution should not be used on cleaning the module.  
• Only qualified and authorized individuals are  
permitted to treat electrical parts, when there is a  
breakage, failure or damage of the product or  
damage of the product.  
• Do not use or install broken modules; Failure to  
comply may result in fire, electric shock, and injury.  
• Always wear rubber gloves for electrical insulation  
while maintaining, washing or cleaning panels.  
• Deposits of foreign material on the frame surface  
can be cleaned by using a wet sponge or cloth and  
dried in air or by using a clean chamois.  
• Do not install the module horizontally. Failure to  
comply may result in excess dirt or white  
efflorescence (glass disease).  
• Panels are not intended for use indoors or on  
moving vehicles of any kind.  
• Perform the wiring work by connecting the  
connector and wires to the stand away from the  
roof or ground.  
• Reflection from external environments such as  
snow Reflection from external environments such  
as snow, water or other surfaces may increase the  
power generated by the panel.  
• Industry standard rated specifications are made at  
conditions of 1000W/m 2 irradiance and 25 °C  
(77ºF) solar cell temperature. Colder temperatures  
may substantially increase voltage and power.  
Electrical Installation  
Danger  
• Avoid all electrical hazards when installing, wiring,  
operating and maintaining all panels.  
• Keep the solar module and system away from  
children at all times.  
• Keep the module packed in the carton until the  
time of installation.  
• Keep flammable gasses away from the installation  
site.  
• Do not work alone. Please work as part of a team  
of two or more people.  
• Safety harness use is strongly recommended for  
installation.  
• Do not connect panels that have different electrical  
properties or physical configurations in the same  
system.  
• Match the polarities of cables and terminals when  
making the connections; failure to do so may result  
in damage to the panel.  
• The rating of the over-current device shall not  
exceed the maximum series fuse rating marked on  
the name plate.  
• Partial shadowing may substantially reduce panel  
and system output.  
• Care must be taken to avoid low tilt angles which  
may cause dirt to buildup on the glass against the  
frame edge.  
• The panel contains factory installed bypass diodes  
located inside the junction box.  
• When installing the system, it is recommended to  
install a lightning rod to protect the system.  
3
Electrical Installation  
• The junction box should not be opened. Opening  
the junction box will void the warranty.  
Parallel Connection  
• The solar modules may be combined in parallel to  
produce the desired current output.  
• Panels with a suspected electrical problem should  
be returned to LG Electronics for inspection and  
possible repair or replacement as per the warranty  
conditions provided by LG Electronics  
• When modules are combined in parallel, the total  
current is equal to the sum of currents from each  
module.  
• The voltage of each module connected in parallel  
should be the same.  
Electrical Connections  
• Shock hazard may occur near the solar modules  
electrical connections.  
• When connecting plural strings of modules in  
parallel every series string or solar module must be  
fused prior to combining with other strings.  
• Modules may be connected in series and/or  
parallel to achieve the desired electrical output as  
long as it is within the guidelines on the product  
specification sheet.  
• Abide with all applicable federal, state, and local  
codes for additional fusing requirements and  
limitations on the maximum number of solar  
modules in parallel.  
• Please use only the same type of modules in a  
combined source circuit.  
• Maximum parallel strings without proper measures,  
e. g. fuse 15 A : 1 string  
• Do not disconnect the module under when it is  
operating.  
Shock hazard may occur near the solar modules  
connection means.  
• Parallel configuration is not limited if proper  
measures are taken to block the reverse current  
flow, e.g. fuses for the protection of the module  
and cables from over-current for prevention of  
unbalanced string voltage.  
Diodes  
• A multiplying factor is required for increased output  
of the PV modules. Under normal conditions, a PV  
module is likely to experience conditions that  
produce more current and/or voltage than reported  
at standard test conditions. The requirements of  
the National Electrical Code (NEC) in Article 690  
shall be followed to address these increased  
outputs. In installations not under the requirements  
of the NEC, the values of Isc and Voc marked on  
this PV module should be multiplied by a marked  
on this PV module should be multiplied by a factor  
of 125% when determining component voltage  
ratings, conductor ampacities, fuse sizes, and size  
of controls to the PV output.  
• All LG modules are equipped with factory installed  
bypass diodes. The factory-installed diodes provide  
proper circuit protection for the systems within the  
specified system voltage.  
1
2
3
4
IF (AV)  
VF (max)  
VRRM  
2X7.5A  
0.84V  
45V  
D1  
D2  
D3  
Tj (max)  
RTH  
175  
1.7 /W  
+
-
Series Connection  
• Depending on national directives, additional safety  
factors might be applicable for overcurrent  
protection.  
• The solar modules may be wired in series to  
produce the desired voltage output.  
• The current of each module connected in series  
should be the same.  
• The maximum number of series connected  
modules can be determined by basis on max  
system voltage, the 125% safety factor not  
explained in specifications, and the module Voc  
which can be checked in Product Specifications in  
this document.  
Do not exceed 80% of maximum system voltage.  
Parallel connection for more current  
• Maximum Module configuration (recommend) :  
refer to the ‘Product Specification’ in this manual.  
Series connection for more voltage  
4
Electrical Installation  
General Wiring  
Module frame  
Bolt  
• 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 the  
applicable codes.  
Flat washer  
Star washer  
• LG Electronics recommends a size no smaller than  
12AWG.  
Cup washer  
Grounding  
wire  
Earth Grounding  
Flat washer  
• All work must be conducted in conformance with all  
Federal, State, and local codes and standards.  
Spring washer  
Nut  
• Grounding works should be performed by an  
authorized installer for the safety and maintenance of  
the system in accordance with all national, state and  
local electrical codes and regulations and standards.  
• Specific information on the solar module  
dimensions and location of grounding holes is  
provided in “Product Specifications”.  
• One M4 stainless steel bolt, one nut, one spring  
washer two flat washers one cup washer one star  
washer and 12 AWG Cu wires are recommended  
per mounting hole.  
Mechanical Installation  
• Where common grounding hardware (nut, bolts,  
washers) is used to attach a listed grounding  
device, the attachment must be made in  
conformance with the grounding device  
manufacturer’s instructions.  
Module Mounting  
• The LG Electronics’ (LGE) Limited Warranty for  
solar modules is contingent upon modules being  
mounted in accordance with the requirements  
described in this section.  
• There is an earth hole on the edge of the module  
frame Using this hole an earth conductor and the  
solar module frame may be recommended to be  
connected and earthed as the below drawing.  
• Any module without a frame (laminate) shall not be  
considered to comply with the requirements of UL  
1703 unless the module with hardware that has  
been tested and evaluated with the module under  
this standard or by a field inspection certifying that  
the installed module complies with the requirements  
of UL 1703.  
• All screws and nuts shall be tightened to a torque  
of 4~5 Nm.  
• A module with exposed conductive parts is  
considered to be in compliance with UL 1703 only  
when is electrically grounded in accordance with  
the instructions presented below and the  
requirements of the National Electrical Code.  
Site Consideration  
LGE solar modules should be mounted in a location  
that meets the following requirements.  
Operating Temperature  
The installation instructions shall include:  
1. Details for wiring shall comply the NEC Article  
690.  
• Maximum Operating Temperature: +90°C (194°F)  
• Minimum Operating Temperature: -40°C (-40°F)  
Design Strength  
2. Details for the grounding method of the frame of  
arrays shall comply with the NEC Article 250.  
3. CNL model instruction manuals shall also include  
a statement that installation shall be in  
accordance with CSA C22.1, Safety Standard for  
Electrical Installations, Canadian Electrical Code,  
Part 1.  
• LGE solar modules are certified to basic loads  
50lb/ft2 (about 2400 Pa).  
Excluded Operating Environments  
• The solar modules from LG Electronics can not be  
operated in a location where they could come in  
direct or indirect contact with salt water or ammonia.  
5
Mechanical Installation  
Mounting by using frame bolts holes  
• Secure the solar module to the structure by using  
the factory mounting holes.  
• Four M6 stainless steel bolts, four nuts, four spring  
washers, and eight flat washers are recommended  
per solar module.  
• The module may be fastened to a support by using  
both the outer and inner bolt holes of the frame.  
• Each module should be securely fastened at a  
minimum 4 points on two opposite sides.  
• Specific information on the solar module  
dimensions and location of mounting holes is  
provided in ‘Product Specifications’.  
Mounting Methods  
General Information  
• Select the appropriate orientation to maximize  
sunlight exposure.  
• Module should not be mounted or stored in a way  
that the front/top glass faces downward in order to  
prevent water from entering the junction box, which  
could cause a safety hazard.  
• Clearance between the solar module frames and  
structures such as roofs or ground is required to  
prevent wiring damage and to allow air to circulate  
behind the solar module. The recommended  
standoff height is a minimum of 100mm  
• When installed on a roof, the solar module must be  
mounted over a fire-resistant roof covering rated  
for the application. The fire resistance of the solar  
module is class C after ANSI/UL790.  
Module frame  
Bolt  
• The solar module is only IEC listed for use when its  
factory frame is fully intact.  
Flat washer  
Flat washer  
Spring washer  
Nut  
• Removal or alteration must be done by an  
authorized and qualified individual  
• Creating additional mounting holes may damage  
the solar module and reduce the strength of the  
frame.  
• We recommend a 6mm gap between module  
frames to avoid tension from thermal expansion.  
Support  
• The fire rating of this module is valid only when  
mounted in the manner specified in the mechanical  
mounting instructions.  
• Tighten the bolt securely by using the combination  
shown above. Place the spring washer between  
the Flat washer and Nut.  
• The module is considered to be in compliance with  
UL1703 only when the module in mounted in the  
manner specified by the mounting instructions  
below.  
Mounting by using clamps  
• The module may be fastened to a support by using  
clamps on both the long edge and the short edge  
of the modules.  
• The solar module may be mounted by using the  
following methods: (*Torque:8~12Nm )  
• When installing modules in heavy snow areas, it is  
recommended to be taken an appropriate  
countermeasure to prevent possible damages to  
the lower side frame by slipping snow .  
• Specific information on the solar module  
dimensions and location of clamping is provided in  
‘Product Specifications’.  
(e.g. attach supporting part to the lowest modules)  
Solar module  
Supporting part  
Roof  
6
Mechanical Installation  
LGXXXS1C(W,K)-G3  
Use four mounting holes on two opposite sides.  
Clamping Range  
(230mm)  
Use four clamps on the long frame.  
This method is not tested by IEC/UL.  
Use four clamps on the Short frame.  
Use four clamps on the short frame and  
two clamps at the center of long Frame.  
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.  
7
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, 1.5AM  
Certifi  
Electrical Properties  
Mechanical Properties  
Other  
cates  
W
%
V
A
V
A
%
V
mm  
mm  
mm  
35  
kg  
A
LG240S1C(W)-G3  
LG245S1C(W)-G3  
LG250S1C(W)-G3  
LG255S1C(W)-G3  
LG260S1C(W)-G3  
LG265S1C(W)-G3  
LG270S1C(W)-G3  
LG240S1K-G3  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
240  
3%  
37.96  
8.42  
30.37  
7.91  
<4.5  
600  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
12  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
MC4  
1640  
1000  
16.8  
15  
245  
250  
255  
260  
265  
270  
240  
245  
250  
255  
260  
3%  
3%  
3%  
3%  
3%  
3%  
3%  
3%  
3%  
3%  
3%  
38.11  
38.26  
38.41  
38.56  
38.71  
38.86  
37.96  
38.11  
38.26  
38.41  
38.56  
8.52  
8.62  
8.72  
8.82  
8.92  
9.02  
8.42  
8.52  
8.62  
8.72  
8.82  
30.57  
30.77  
30.97  
31.17  
31.37  
31.57  
30.37  
30.57  
30.77  
30.97  
31.17  
8.02  
8.13  
8.24  
8.35  
8.46  
8.57  
7.91  
8.02  
8.13  
8.24  
8.35  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
<4.5  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
600  
1640  
1640  
1640  
1640  
1640  
1640  
1640  
1640  
1640  
1640  
1640  
1000  
1000  
1000  
1000  
1000  
1000  
1000  
1000  
1000  
1000  
1000  
35  
35  
35  
35  
35  
35  
35  
35  
35  
35  
35  
16.8  
16.8  
16.8  
16.8  
16.8  
16.8  
16.8  
16.8  
16.8  
16.8  
16.8  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
15  
LG245S1K-G3  
LG250S1K-G3  
LG255S1K-G3  
LG260S1K-G3  
Note : *Relative efficiency reduction by respect to irradiance  
*MC4 formal name : PV-KST4 / 6II-UR, PV-KBT4 / 6II-UR  
- Dimensions of Modules  
LGXXXS1C(W,K)-G3  
Unit: mm / in.  
Cross-sectional drawings  
Long side frame  
Short side frame  
Note :*Holder is for the convenient connection of junction box cable,but that does not warranty if it is broken  
after installed.  
8
Disclaimer of Liability / Disposal  
Disclaimer of Liability  
• By beginning the installation process the installer  
represents the he/she has read and completely  
understands this Installation Manual. He/She  
further represents if he/she had any questions  
regarding this installation manual he/she would  
have contacted LG with any questions or concerns.  
By installing an LG Solar module, I discharge, and  
cove nant not to sue LG, its affiliated companies,  
successors, or assigns, its administrators,  
directors, agents, officers, volunteer and  
employees, other participants in any activity  
connected to installation, operation, or service of  
LG Solar Modules and if applicable from all  
liabilities claim Solar Modules, and if applicable,  
from all liabilities, claims, demands, losses, or  
damages on my account caused or alleged to be  
caused in whole or in part by the negligence of the  
LG its affiliated companies, successors, or assigns,  
its administrators, directors, agents, officers,  
volunteer and employees.  
Disposal  
• Please contact us, if you have any queries related  
to the disposal or recycling of solar modules from  
LG Electronics.  
Transporting and Storage  
• Do not loosen the banding, when the module is  
transported by truck, ship and etc.  
In case of loose banding, the module will be  
shaken, which may cause damage.  
• Do not stack more than three pallets.  
Severe stacking can cause stress to the module  
and may cause product damage.  
9
Appendix  
WILEY Compatibility  
• LG modules have been confirmed by Burndy LLC that the below model number designations have been  
evaluated with the Burndy WEEB line of products :  
LGxxxS1C-G3, LGxxxS1K-G3, LGxxxN1C-G3, LGxxxS1C-A3, LGxxxS1K-A3  
- WEEBs  
WEEB-DPF  
- Grounding Lugs  
LUG 6.7  
- Cable Clips  
ACC-R2  
Important Notes  
1. The NEC section 690.43 states, “Exposed non-current carrying metal parts of module frame, equipment and  
conductor enclosures shall be grounded in accordance with 250.134 or 250.136(A) regardless of voltage”  
2. Use general purpose anti-seize compound on fastener threads when installing WEEBs.  
3. WEEBs are intended for SINGLE USE ONLY. Functionality will not be guaranteed if reused.  
10  
LG Electronics U.S.A Inc.  
1000 Sylvan Ave, Englewood Cliffs, NJ 07632  
Contact : [email protected]  
This document is subject to change without notice.  
LG, LG logo and Life's Good are trademarks of LG Electronics, Inc. worldwide. Trademarks and  
intellectual properties of LG Electronics, Inc. are protected by international copyright laws.  
Document : II-G3-UL-V5-EN-201306  

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