LG LG240M1C User manual

Installation Instructions
Monocrystalline Solar Module Multicrystalline Solar Module
Monocrystalline Solar Module
Multicrystalline Solar Module

22
Table of Contents
Before Installation ...........................................................................................................................................................................
Exemption from Liability ....................................................................................................................................................
Safety and Instruction Signs in the Manual ................................................................................................
Safety ............................................................................................................................................................................................................. 4
Electric Voltage Hazard Warning ............................................................................................................................... 4
Accident Hazard Warning ................................................................................................................................................ 5
Warnings Related to the Use of Solar Modules ...................................................................................... 6
Warnings Related to the Installation of Solar Modules .................................................................
Electrical Installation ...................................................................................................................................................................
General Wiring ..............................................................................................................................................................................
Series Connection .....................................................................................................................................................................
Parallel Connection ..................................................................................................................................................................
Mechanical Installation .............................................................................................................................................................
Mounting with Mounting Holes in the Module Frame .....................................................................
Mounting with Module Clamps on the Longer Module Side .................................................
Mounting with Module Clamps on the Shorter Module Side ................................................
Mounting with Inlay Systems .........................................................................................................................................
Mounting with In-Roof Systems ................................................................................................................................
Earth Ground Wiring .................................................................................................................................................................... 17
Maintenance and Inspection ...............................................................................................................................................
Disposal ........................................................................................................................................................................................................
18
18
15
16
16
1
12
13
10
2
2
2
7
8
8
9
1

2
EN
Before Installation
Before Installation
This manual contains general and safety
instructions to be observed while install-
ing and operating the LG Solar modules.
Please read this manual carefully before
installation. All installation and safety in-
structions should be clearly understood
before attempting to install, wire, com-
mission, or service the solar module.
Non-adherence can lead to personal
injury and material damages.
This manual is only intended for quali-
fied persons and specialist technicians.
This manual is for the monocrystalline
solar modules LG240M1C, LG235M1C,
LG230M1C, the multicrystalline solar
modules LG230P1C, LG225P1C and
LG220P1C, and other power classes.
Solar modules from LG Electronics are
photovoltaic solar modules for convert-
ing light into electrical energy. The solar
modules are designed for use in photo-
voltaic systems. Any other application is
not conventional.
Exemption from Liability
No warranty or liability can be granted
for any damages arising from improper
installation.
Safety and Instruction Signs in the
Manual
Electric voltage hazard
Danger to life or health
Danger of material damage
Background or additional information

3
Safety
Accident prevention guidelines, rules
and regulations issued by the organisa-
tions and authorities concerned apply to
installation, operation and maintenance.
If applicable, observe the national and
regional directives, in particular the fire
protection regulations.
Please also follow the individual safety
regulations for the other components
used in the photovoltaic system.
Electric Voltage Hazard Warning
The following safety instructions and
statutory directives must be observed
and adhered to.
Installation and maintenance may only
be carried out by qualified persons and
only in compliance with the local direc-
tives.
Keep children away while installing the
photovoltaic system and solar modules.
There is mortal danger due to electric
shock and arc load.
Contact with electrically live parts of the
solar module such as terminals could
lead to burns, sparks and fatal electric
shocks.
Safety

4
EN
Observe the special safety directives on
handling direct current and photovoltaic
systems. The solar modules always
generate direct current when exposed
to sunlight. This can lead to life-threat-
ening values in just one single solar
module. The solar modules are pro-
tected only at the DC switch.
Never disconnect under load. There
may be life-threatening arc loads that
cannot be put out independently.
Do not touch the junction box, cable
ends and plug connections with bare
hands during the installation or in sun-
light, regardless of whether the solar
module is connected to the photo-
voltaic system or not.
Do not insert any part in the connector
plugs or jacks.
Do not carry out any work in wet weather
to avoid electric shock. Do not use any
wet tools. Do not work on wet terminals
of the solar module either.
Use insulated tools and rubber gloves
recommended for working on electrical
equipment.
Never leave the solar module unse-
cured.
Safety

5
Accident Hazard Warning
The following safety instructions and
statutory directives must be observed
and adhered to.
Installation and maintenance may only
be carried out by qualified persons and
only in compliance with the local direc-
tives.
Use suitable safety measures to pre-
vent falls when working high above the
ground. If applicable, observe the cor-
responding directives and recommen-
dations of the occupational health
agencies or relevant organisations.
Do not work under rainy, snowy or windy
conditions.
While working at heights, be careful to
avoid the danger of objects falling.
Handle broken or damaged solar mod-
ules carefully and with appropriate
safety gear.
Do not touch the glass and rear side of
the solar module with bare hands. Wear
safety gloves to avoid injuries.
The glass surface and module frame
can heat up under the sun’s rays, which
may result in burning of the skin. Use
safety gloves if required.
Safety

6
EN
The following safety instructions and
statutory directives must be observed
and adhered to.
Persons who have no knowledge of solar
modules or, for instance, the measures
to be taken when handling damaged
solar modules should not go near the
solar modules. This is to ensure there
are no injuries or electric shocks.
Do not concentrate the sunlight artifi-
cially on the solar module with the help
of mirrors, lenses or other objects.
Avoid any shadowing of the solar module,
also partial shadowing. This will cause
yield cuts and may damage the solar
module in certain conditions.
Position the solar modules in surround-
ings where the operating temperature
will stay strictly within the range of
-40°C to +90°C. It is especially impor-
tant to ensure that there is sufficient air
circulation behind the solar modules if
they are mounted in hot ambient con-
ditions.
The solar modules may not be oper-
ated in a location where they could come
in contact with salt water.
Ensure that no inflammable gases could
become present at the installation area.
If the solar module is being installed on
a roof, it may only be mounted on a
fire-resistant roof covering designed for
this purpose.
If a solar module or component needs
to be replaced, compare and check the
properties and performance of the new
solar module/component with the one
being used.
Do not clean the glass surface of the
solar module with an alkaline cleaning
agent.
Safety
Warnings Related to the Use of Solar Modules

7
Safety
The following safety instructions and
statutory directives must be observed
and adhered to.
Mounting and installation may only be
carried out by qualified persons and
only in compliance with local directives.
A general degree of care is needed
when handling the solar modules.
Damaged solar modules may not be
used.
Handle the solar module very carefully
during transport. Do not allow the solar
module to fall and avoid excessive load.
The solar cells in the solar module are
very thin and can break easily.
Do not step on the solar module and
do not let any object fall on the solar
module.
Do not damage or scratch the rear of
the solar module.
Do not strike any part of the solar mod-
ule.
Do not lift the solar module by the
junction box and cables. Do not pull at
the cables and do not twist or scratch
the cables.
Do not dismantle the solar module and
never carry out any unauthorised
changes on the solar module. Do not
remove any labels. Do not drill any
holes in the frame or glass. This could
compromise the stability of the frame
or glass.
Do not cover the water drainage holes
of the module frame. If the frame is
filled with water, it can lead to frost
damage.
Do not allow the insulation coating of
the frame to get scratched. This can
lead to corrosion and may compromise
the stability of the frame.
Ensure that the plug connections are
tight and check the functioning of the
cabling.
Use only those devices, plug connec-
tions, electric lines and mounting sys-
tems which are appropriate for use in
photovoltaic systems.
After installation, check that the solar
module and photovoltaic system are
functioning correctly.
Warnings Related to the Installation of Solar Modules

8
EN
Electrical Installation
Electrical Installation
Solar modules from LG Electronics dealt
with here meet the requirements of Ap-
plication Class A: Dangerous voltage (IEC
61730: more than 50 V DC; EN 61730:
more than 120 V DC); systems with dan-
gerous power where normally unlimited
accessibility is expected.
For more information on solar modules
from LG Electronics, please refer to the da-
tasheets of the solar modules. These can
be found at www.lg-solar.com.
In particular ambient conditions, a solar
module can deliver a higher current
and/or voltage than indicated in the
standardised test conditions. For deter-
mining the rated values of components
such as cabling, fuses and inverters con-
nected to the solar module's outlet, the
values for Isc and Uoc are to be multiplied
by a factor of 1.25 when the photovoltaic
systems are designed.
General Wiring
Solar modules from LG Electronics can
be connected in series or parallel to get
the desired electrical output.
Use only solar modules of the same type
in a combined connection.

9
Electrical Installation
Series Connection
The maximum system voltage must not
be exceeded.
The solar modules can be connected in
series to receive a higher output voltage.
Series connection is preferred if the sys-
tems are not in shade. This has the fol-
lowing advantages.
the solar modules can be mounted
simply and quickly
higher voltages make it possible to
have smaller cable cross-sections
higher voltages lead to lower currents
with the same output and therefore to
lower power losses
Series connection for increasing the system voltage

10
EN
Electrical Installation
The maximum number of solar modules
in parallel connection without additional
precautions such as fuse or blocking di-
ode is one module string. The number
of module strings in parallel connection
is not restricted if relevant precautions
have been taken for blocking the reverse
current; meaning, for instance fuses to
protect the solar module and the cable
from over-current, or blocking diodes for
unequal string voltage.
The solar modules or module strings
should be connected in parallel if the
system is in shade.
Parallel Connection
The solar modules can be connected in
parallel to receive a higher output cur-
rent.
Every string or solar module in series
must be fused prior to combination with
other strings. At its factory, LG Electronics
pre-installs bypass diodes in the solar
modules. Observe the corresponding
regional and local directives regarding
additional requirements for fuses and
limiting the maximum number of solar
modules in parallel connection.
Parallel connection for increasing the system current

11
Mechanical Installation
Mechanical Installation
The LG Electronics solar modules are
designed for a maximum test load of
5,400 Pa - 1 Pascal = 1kg/m/s² – when
they are installed in a mounting system
which is also designed for these loads.
Ensure that the regional wind and snow
load zones do not exceed this test load.
In a roof mounting, ensure that the statics
of the roof are sufficient to bear the
loads arising from the photovoltaic sys-
tem.
Solar modules from LG Electronics may
only be mounted in accordance with the
methods described in the sections be-
low.
The solar modules can be fastened to
the mounting system using mounting
holes in the module frame or by using
module clamps.
Solar modules from LG Electronics can
be mounted at any positioning angle.
However, their orientation must be ad-
justed to ensure that the front does not
point downwards, since otherwise water
can enter the junction box on the rear
side of the module.
Select the orientation to ensure maximum
solar irradiation on the solar modules.
The ideal orientations are south-facing
in the northern hemisphere and north-
facing in the southern hemisphere. In
Central Europe, the pitch angle should
be 30°, whereas in the south it should be
a little less. The pitch should not be less
than 20° to 25°, as this will compromise
the self-cleaning feature of the module
surfaces.
Ensure that no shadow falls on the mod-
ules from antennae, chimneys, growing
trees or similar objects.
For more information on solar modules from
LG Electronics, please refer to the data
sheets of the solar modules. The data
sheets can be found at www.lg-solar.com.

12
EN
Mechanical Installation
Do not remove the frame of the solar
module. Do not modify the module frame,
e.g. by adding holes, since this may
damage the solar module and compro-
mise the stability of the module frame.
Keep a space of at least 100mm free
behind the solar modules for the neces-
sary air circulation.
The solar module can be fastened to a
mounting system using the four mount-
ing holes at the bottom of the module
frame.
For fastening, use one hexagonal screw
M6, spring washer, hexagonal nut and
two shims for each mounting hole.
Mounting with Mounting Holes in the Module Frame
Position of the frame holes
Frame hole

13
Mechanical Installation
Mounting with Module Clamps on the
Longer Module Side
Alternatively, the solar modules can be
fastened to the mounting system with
module clamps. To do this, use four
module end clamps for every solar
module. If you are mounting several
module series one after the other, use
A
C
B
Necessary dimensions of the module clamps
middle module clamps between the solar
modules. Using suitable module clamps,
ensure that measurements A, B and C are
observed in line with the following graphic.
Clamp width A min. 30mm
Clamp depth B min. 5mm
Bracket width C min. 10mm

14
EN
Mechanical Installation
Position the module clamps uniformly
on the solar module in accordance with
the following graphic. In doing so, ensure
that D is not below 170mm and does not
exceed 400mm.
If you are mounting several solar modules
next to each other, place a distance piece
between adjacent solar modules. The
solar modules should never be mounted
directly next to each other, since the so-
lar modules may sustain damage owing
to temperature-induced
variations in their
dimensions. A minimum
distance of 5mm
is recommended.
Distance between the solar modulesPermitted position of the module clamps
DD
DD
170 mm ≤D≤400 mm

15
Mechanical Installation
Mounting with Module Clamps on the
Shorter Module Side
The solar modules can also be fastened
to the mounting system with module
clamps. To do this, use four module end
clamps for every solar module. Using
suitable module clamps, ensure that
measurements A, B and C are observed
in line with the following graphic.
Clamp width A min. 30 mm
Clamp depth B min. 5 mm
Bracket width C min. 10 mm
Position the module clamps uniformly
on the solar module in accordance with
the following graphic. In doing so, ensure
that D is not below 150mm and does
not exceed 270mm.
A
C
B
Necessary dimensions of the module
clamps
Permitted position of the module clamps
D
D
150 mm ≤D≤270 mm
D
D

16
EN
Mechanical Installation
If you are mounting several module series
consecutively use middle module clamps
between the solar modules. The solar
modules may never be mounted directly
next to each other, since the solar modules
may sustain damage owing to tempera-
ture-induced variations in their dimen-
sions. A minimum distance of 5mm is
recommended.
Mounting with Inlay Systems
Solar modules from LG Electronics can
also be installed with suitable inlay sys-
tems.
Mounting with In-Roof Systems
Solar modules from LG Electronics can
also be installed with suitable in-roof
systems. It is important to ensure that
there is sufficient air circulation behind
the solar modules.
Distance between the solar modules

17
Earth Ground Wiring
Earth Ground Wiring
Screws or other earth ground connec-
tions may not be used for fastening the
photovoltaic system mechanically on the
load-bearing surfaces or frames.
To avoid an electric shock or fire, the
frame of the solar modules must be
earthed. Follow the instructions in the
graphic below.
6
2
5
4
1
2
3
2
No. Description Basic size Material
1
Hexagonal screw M4×15 rust-free
2 Shim 4.3 rust-free
3 Serrated washer 4.3 rust-free
4 Earth ground wire AWG 12 Copper
5 Spring washer 4.3 rust-free
6 Hexagonal nut M4 rust-free
Earth ground wiring

18
EN
Maintenance and Inspection
Maintenance and
Inspection
The LG solar modules may only be serviced
and maintained by qualified persons.
Do not clean the glass surface with an
alkaline cleaning agent. Do not allow wa-
ter to remain on the glass for a sustained
period.
Do not allow earth ground wiring to be
broken or damaged during the routine
maintenance of a solar module.
We recommend the following regular
maintenance and inspections.
Cleaning of the glass surfaces
Removal of snow, if required
Visual inspection of the fastening system
Visual inspection of the solar modules
Visual inspection of the electrical con-
nections
Checking the yields
Disposal
Please contact us at the address given
overleaf if you have any queries related to
the disposal or recycling of solar modules
from LG Electronics.

LG Electronics Deutschland GmbH
Jakob-Kaiser-Strasse 12, 47877 Willich, Germany
Contact: [e-mail]
http://www.lg-solar.com
Product specifications are 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.
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LG Electronics U.S.A. Inc.
1000 Sylvan Ave, Englewood Cliffs, NJ 07632
Contact: [e-mail]
http://www.lg.solar.com