LG LG280N1CW-G4 User manual

Monocrystalline Solar Module
LGXXXN9C(W)-G4
LGXXXN1C(W,K)-G4
Installation Instructions
MFL69021104

Table of Contents
Revisions Table
2
1. Safety 3
2. Before & After Installation 4
3. Electrical Installation 5
4. Mechanical Installation 6
5. Product Specifications 10
6. Disclaimer of Liability / Disposal 12
7. Transporting and Storage 12
Date Version RemarkDescription of change
1.0 (1st edition)2015.01.22

3
Safety
The instructions related to the safety indicated in the
following are for preventing unexpected danger or
damage in advance by safely and exactly using the
product.
Non-compliance of the instructions may immediately
cause serious injury or death.
Non-compliance of the instructions may cause death
or serious injury to the user.
Non-compliance of the instructions may cause injury
or property damage to the user.
Do not contact with electrically active parts of the
panel, such as terminals, regardless of
connection of the module. It may result in spark
or lethal electric shock.
Please don’t use the module with the broken
window or the torn back side. There is a danger
of electric shock.
Please perform works in the dry condition and
use only dry tools. Do not handle the wet panels
without protection equipment. It may result in
safety accident.
Damaged module must be treated with safety
protection equipment. It may result in injury.
Do not approach the damaged or broken module
unless you are an expert. It may result in serious
injury.
No electrical parts like cables are located after
installation between laminate and mounting
structure.
Do not reconnect or repair Junction Box Cable. It
may occur spark or electric shock.
Module Module
Installing structure
(bent type)
Installing structure
(Stralght type)
Product Deformation Occurrence of space
Please use proper equipment, connector, wire
and buttress for system configuration of the
module. It may result in damage or failure of the
product.
Do not perform installation in rainy, heavily windy
or snowy days. It may result in safety accident.
Do not make holes in the frame or glass of the
module. It 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.
Do not locate a heavy object onto the module. Do
not stand on or step on the module. Do not drop
or suddenly lay down the module. It may result in
injury.
Do not scratch the coating surface of the frame. It
may decrease the strength due to corrosion of
the frame.
Do not concentrate sunlight on the module
surface. It may result in damage of the product.
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. It may result in
damage of the product.
If the installing structure has a curved surface
e.g. arch type as shown in the below picture, do
not forcefully modify the module in installation
when connecting it with the structure. Please
install the module in the place where the
structure has been completely set up because
deformation of the structure may cause
deformation of the product when performing
installation by using a crane, etc after assembling
the module to the installing structure.

4
Before & After Installation
• Wear a safety belt if working high above the
ground.
• Contact with electrically active parts of the panels,
such as terminals, can result in burns, sparks and
lethal shock whether the panel is connected or
disconnected.
• Even partial shadowing can 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.
• Dirt build-up on the surface of the panel can cause
active solar cells to be shaded and electrical
performance to be impaired.
• Always keep the back surface of the panel free
from any foreign objects or structural elements
which could come into contact with the panel,
especially when the panel is under mechanical
load.
• For permission to use mounting methods not
described in the Mounting Guide please consult
LG Solar. Failure to do so will void the warranty
and panel certification.
After Installation
• Plug the connector in tightly and ensure that the
wiring properly works.
• It is advisable to 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.
• PV panels can operate effectively without ever
being washed, although removal of dirt from the
front glass can increase output.
• 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.
• No aggressive and abrasive cleansers or
chemicals such as alkali chemicals including
ammonia based solution should ever be used on
the treated front glass.
• Always wear rubber gloves for electrical insulation
while maintaining, washing or cleaning panels.
• Deposits of foreign material on the frame surface
can be cleaned using a wet sponge or cloth and
dried in air or by using a clean chamois.
• Perform the wiring work by connecting the
connector and wires to the stand away from the
roof or ground.
Before Installation
Please carefully read this manual before installation.
• Solar module installation should be performed by
an authorized installer for the safety and
maintenance of the system.
• All installation instructions should be clearly
understood before attempting installation.
• Do not twist, pull, or scratch the cable attached to
the solar module.
• Do not touch the solar module with bare hands. It
may result in a burn or injury.
• Do not drop the solar module and cause an
excessive load on solar module.
• Do not disassemble the solar module.
• After installation or repair, check whether solar
module operates properly or not.
• In case the currently used solar module or the
parts applied to the solar module have been
replaced, check whether the changed solar module
is properly operated or not. The newly replaced
solar module and its parts must be the same solar
module(module name) and parts with the current
solar module.
• Please contact the local office to confirm the
regulations and to obtain permission.
• Do not let anyone approach the solar module who
has little knowledge of solar modules or on the
measures to take when solar modules are
damaged in order to avoid the risk of injury or
electrical shock.
• Do not locate the solar module horizontally, as this
may cause dirt or white efflorescence (glass
deformation)
• Panels produce voltage even when not connected
to an electrical circuit or load.
• Panels are intended for outdoors, land based
applications only. Panels are not intended for use
indoor use or application on moving vehicles of any
kind.
• Reflection from external environments such as
snow, water or other surfaces can increase the
power generated by the panel.
• Industry standard rated specifications are made at
conditions of 1000W/m2 irradiance and 25°C
(77ºF) solar cell temperature. Colder temperatures
can substantially increase voltage and power.
• Keep the solar module and system away from
children when installing.
• Keep the module packed in the carton until the
time of installation.
• Make sure flammable gases are not generated
near the installation site.
• Do not work alone. Please work as part of a team
of two or more people.

--
Parallel connection for more current
5
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 total
current is equal to the sum of currents from each
module.
• The voltage of each module connected in parallel
should be same.
• When connecting plural strings of modules in
parallel every series string or solar module must be
fused prior to combining with other strings.
By pass diodes are factory installed in the solar
modules.
• Please refer to the applicable regional and local
codes for additional fusing requirements and
limitations on the maximum number of solar
modules in parallel.
• Maximum parallel strings without proper measures,
e.g. fuse 20A and/or blocking diode : 1 string
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 and/or blocking
diodes for prevention of unbalanced string voltage.
• 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. Accordingly, the values
of Isc and Voc 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.
• Depending on national directives additional safety
factors might be applicable for overcurrent
protection.
Caution
• Avoid all electrical hazards when installing, wiring,
operating and maintaining a panel.
• Do not use panels of different electrical 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.
• When reverse currents can exceed the value
marked on the name plate, a properly rated and
certified over-current device (fuse or circuit
breaker) must be connected in series with each
panel or string of panels.
• The rating of the over-current device shall not
exceed the maximum series fuse rating marked on
the name plate.
• The panel contains factory installed bypass diodes
located inside the junction box.
• When installing the system, it is recommended to
install the lightning rod to protect the system.
• The junction box should not be opened. Opening
the junction box may void the warranty.
• 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.
Electrical Connections
• Modules may be connected in series and/or
parallel to achieve the desired electrical output as
long as certain requirements are met.
• Please use only the same type of modules in a
combined source circuit.
• Do not disconnect the module under load.
Shock hazard can occur near the solar modules
connection means.
Series Connection
• The solar modules may be wired in series to
produce the desired voltage output.
• The current of each module connected in series
should be same.
• The maximum number of series connected
modules can be determined by basis on max.
system voltage, the 125% safety factor, and the
module Voc which can be checked in “Product
Specifications” in this document.
• Do not exceed 80% of maximum system voltage.
• The maximum solar module configuration can be
found in “Product Specifications”.
Series connection for more voltage

6
Mechanical Installation
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.
• The solar modules are in Application Class A and
have the Safety Class II. Therefore they can be
operated in systems with 120 V DC and higher.
General access is not restricted.
Site Consideration
LGE solar modules should be mounted in a location
that meets the following requirements.
Operating Temperature
• Maximum Operating Temperature: +90°C (194°F)
• Minimum Operating Temperature: -40°C (-40°F)
Design Strength
• Front loads : 6000 Pascal
• Rear loads : 5400 Pascal
Excluded Operating Environments
• The solar modules from LG Electronics can be
operated in a location where they could come in
contact with salt water or ammonia, if they have
been tested successfully for these operating
conditions. Please see related certificates. Please
get a release from LG Electronics for increased
conditions.
Mounting Methods
General Information
• Select the appropriate orientation to maximize
sunlight exposure.
• In order to prevent water from entering the junction
box, which could present a safety hazard, module
should not be mounted such that the front/top
glass faces downward.
• 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 from LG Electronics is class C after
ANSI/UL790.
• The solar module is only IEC listed for use when its
factory frame is fully intact.
• Do not remove or alter the solar module frame.
• Creating additional mounting holes may damage
the solar module and reduce the strength of the
frame.
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 the
applicable 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 is
not mandatory. However grounding is
recommended. Also equipotential bonding must be
realized. The national directives must be
respected.
• 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 solar module.
• There is an earth hole in the center of the module
frame. Using this hole, an earth conductor and the
solar module frame may be recommended to
connected and earthed as the below drawing.
• To prevent electric shock and fire, a protective
ground must be done on the frames of solar
modules and arrays although the solar modules
from LG Electronics meet the conditions of safety
class II. The national directives must be respected.
Module
frame
Bolt
Flat washer
Star washer
Cup washer
Flat washer
Spring washer
Nut
Grounding
wire

7
Mechanical Installation
• A 6mm gap between module frames should be
allowed to avoid tension from thermal expansion.
• The solar module may be mounted using the
following methods: (*Torque:8~12Nm )
• When installing modules in heavy snow areas,
special care should be taken to install the modules
in a manner that provides sufficient design
strength while meeting local code requirements.
Bolt
Flat washer
Flat washer
Nut
Support
More than 40mm
More than 10mm
More than 10mm
Mounting by using clip or clamps
The module may be fastened to a support using
clips or clamps on both the long edge and the
short edge of the modules.
Specific information on location of clipping is
provided in ‘Mechanical Installation Scene’.
(Refer to next page)
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 spring
washers, and eight flat washers are recommended
per solar module.
• For rear loads 5400Pa, modules should be
fastened with four M8 stainless steel bolts, four
nuts, four spring washers, and eight flat washers.
• The module may be fastened to a support 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’.
• Tighten the bolt securely using this combination.
Place spring washer between Flat washer and Nut.
Module frame
Spring washer

8
Mechanical Installation
Mounting Type
Clamping Type
(Long Side)
Clamping Type
(Short Side)
105mm 105mm
150mm
50mm
150mm
50mm
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
(100mm)
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.
LGXXXN9C(W)-G4

9
Mechanical Installation
Mounting Type
Clamping Type
(Long Side)
Clamping Type
(Short Side)
150mm 150mm
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
(250mm)
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.
LGXXXN1C(W,K)-G4

10
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
seitreporPlacinahceMseitreporPlacirtcelEsetacifitreC
1
r
i
Module Series Model Name
IEC61215 Ed.2, IEC 61730,
Safety Class II, CE, ISO900
Pmax at STC
Power Tolerance Voc at STC
Isc at STC
Vmpp at STC
Impp at STC *Efficiency Reduction Max. No. of modules in se
r
es
Max. System Voltage
Connector Length
Width
Height
Weight
W% V
A
V
A
% V mm mm mm k
g
g
L
GXXXN9C(W)-G4
LG270N9C(W)-G4 Yes 270 3% 36.79.8628.99.35<2.0 22 1000 MC4 1480 1000 40 15.4
LG275N9C(W)-G4 Yes 275 3% 36.89.9029.39.39<2.0 22 1000 MC4 1480 1000 40 15.4
LG280N9C(W)-G4 Yes 280 3% 37.09.9429.79.43<2.0 22 1000 MC4 1480 1000 40 15.4
L
LG285N9C(W)-G4 Yes 285 3% 37.19.9730.19.47<2.0 22 1000 MC4 1480 1000 40 15.4
LG290N9C(W)-G4 Yes 290 3% 37.4 10.01 30.4 9.54 <2.0 22 1000 MC4 1480 1000 40 15.4
- Dimensions of Modules
Note :*Holder is for the convenient connection of junction box cable,but that does not warranty if it is broken
after installed.
LGXXXN9C(W)-G4
Cross-sectional drawings
Unit: mm / in.
Long side
frame
Short side
frame

11
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
seitreporPlacinahceMseitreporPlacirtcelEsetacifitreC
1
r
i
Module Series Model Name IEC61215 Ed.2, IEC 61730, Safety Class II, CE, ISO900 Pmax at STC Power Tolerance Voc at STC Isc at STC Vmpp at STC
Impp at STC *Efficiency Reduction Max. No. of modules in se
r
es Max. System Voltage
Connector Length
Width
Height
Weight
W%
V
A
V
A
%
V
mm mm mm k
g
g
L
GXXXN1C(W)-G4
LG280N1C(W)-G4 Yes 280 3% 38.6 9.78 30.7 9.13 <2.0 20 1000 **MC4 1640 1000 40 17.0
LG285N1C(W)-G4 Yes 285 3% 38.9 9.81 31.1 9.17 <2.0 20 1000 MC4 1640 1000 40 17.0
LG290N1C(W)-G4 Yes 290 3% 39.2 9.84 31.4 9.24 <2.0 20 1000 MC4 1640 1000 40 17.0
LG295N1C(W)-G4 Yes 295 3% 39.5 9.87 31.8 9.28 <2.0 20 1000 MC4 1640 1000 40 17.0
LG300N1C(W)-G4 Yes 300 3% 39.8 9.90 32.2 9.34 <2.0 20 1000 MC4 1640 1000 40 17.0
LG305N1C(W)-G4 Yes 305 3% 40.1 9.93 32.5 9.39 <2.0 19 1000 MC4 1640 1000 40 17.0
LG310N1C(W)-G4 Yes 310 3% 40.4 9.96 32.8 9.45 <2.0 19 1000 MC4 1640 1000 40 17.0
LG315N1C(W)-G4 Yes 315 3% 40.6 10.02 33.2 9.50 <2.0 19 1000 MC4 1640 1000 40 17.0
LG320N1C(W)-G4 Yes 320 3% 40.9 10.05 33.6 9.53 <2.0 19 1000 MC4 1640 1000 40 17.0
L
LG325N1C(W)-G4 Yes 325 3% 41.2 10.08 34.0 9.57 <2.0 19 1000 MC4 1640 1000 40 17.0
LG330N1C(W)-G4 Yes 330 3% 41.5 10.11 34.3 9.63 <2.0 19 1000 MC4 1640 1000 40 17.0
LG335N1C(W)-G4 Yes 335 3% 41.8 10.14 34.6 9.69 <2.0 19 1000 MC4 1640 1000 40 17.0
LG340N1C(W)-G4 Yes 340 3% 42.1 10.17 34.9 9.75 <2.0 19 1000 MC4 1640 1000 40 17.0
K-G4
LG280N1K-G4 Yes 280 3% 38.1 9.53 31.0 9.04 <3.0 20 1000 MC4 1640 1000 40 17.0
LG285N1K-G4 Yes 285 3% 38.5 9.57 31.3 9.11 <3.0 20 1000 MC4 1640 1000 40 17.0
LG290N1K-G4 Yes 290 3% 38.9 9.61 31.7 9.16 <3.0 20 1000 MC4 1640 1000 40 17.0
LG295N1K-G4 Yes 295 3% 39.3 9.66 32.1 9.21 <3.0 20 1000 MC4 1640 1000 40 17.0
LG300N1K-G4 Yes 300 3% 39.7 9.70 32.5 9.26 <3.0 20 1000 MC4 1640 1000 40 17.0
LGXXXN1
LG305N1K-G4 Yes 305 3% 40.1 9.74 32.9 9.28 <3.0 19 1000 MC4 1640 1000 40 17.0
LG310N1K-G4 Yes 310 3% 40.5 9.78 33.3 9.31 <3.0 19 1000 MC4 1640 1000 40 17.0
LG315N1K-G4 Yes 315 3% 40.6 9.82 33.7 9.35 <3.0 19 1000 MC4 1640 1000 40 17.0
LG320N1K-G4 Yes 320 3% 40.9 9.86 34.1 9.39 <3.0 19 1000 MC4 1640 1000 40 17.0
LG325N1K-G4 Yes 325 3% 41.2 9.90 34.5 9.43 <3.0 19 1000 MC4 1640 1000 40 17.0
LG330N1K-G4 Yes 330 3% 41.6 9.94 34.9 9.47 <3.0 19 1000 MC4 1640 1000 40 17.0
- Dimensions of Modules
Note :*Holder is for the convenient connection of junction box cable,but that does not warranty if it is broken
after installed.
LGXXXN1C(W,K)-G4
Cross-sectional drawings
Unit: mm / in.
Long side
frame
Short side
frame

12
Disclaimer of Liability / Disposal
Disclaimer of Liability
• Since the use of this Safety, Installation and
Operation instructions and the conditions or
methods of installation, operation, use and
maintenance of the panel are beyond the control of
LG Electronics, LG Electronics does not assume
responsibility and expressly disclaims liability for
loss, damage, injury or expense arising out of or in
any connected with such installation, operation,
use or maintenance of the panel.
• LG Electronics assumes no responsibility for any
infringement of patents or other rights of third
parties that may result from use of the panel. No
license is granted by implication or otherwise under
any patent or patent rights..
Disposal of your old appliance
1. This crossed-out wheeled bin
symbol indicates that waste
electrical and electronic
products (WEEE) should be
disposed of separately from
the municipal waste stream.
2. Old electrical products can contain hazardous
substances so correct disposal of your old
appliance will help prevent potential negative
consequences for the environment and human
health. Your old appliance may contain reusable
parts that could be used to repair other products,
and other valuable materials that can be recycled
to conserve limited resources.
3. You can take your appliance either to the shop
where you purchased the product, or contact your
local government waste office for details of your
nearest authorized WEEE collection point. For the
most up to date information for your country
please see www.lg.com/global/recycling
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 on more than one pallet. Maximum
height is two pallets.
Severe stacking can give stress to the module and
may cause product damage.

LG Electronics Deutschland GmbH
Berliner Straße 93 D-40880 Ratingen, Germany
Contact: [email protected]
LG Electronics Inc. (Global HQ)
LG Twin Towers, 128, Yeoui-daero, Yeongdeungpo-gu,
Seoul 150-721, Korea
Contact: [email protected]
http://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 and
intellectual properties of LG Electronics, Inc. are protected by international copyright laws.
Document : II-G4(N)-IEC-V1-EN-201501