LG LG290N1C-G4, LG280N1W-G4, LG290N1W-G4, LG295N1C-G4, LG295N1W-G4 Installation Manual
...
Please read this manual carefully before operating
your set and retain it for future reference.
N-TYPE MODELS
LGXXXN1C(W,K)-G4
LGXXXN2C(W,K)-G4
P-TYPE MODELS
LGXXXS1C(W)-G4
LGXXXS2C(W)-G4
LGXXXS1C(W)-L4
MFL69534401 (Rev 00)
www.lgsolarusa.com
Installation manual
PV Solar
MODULE
TABLE OF CONTENTS
SAFETY ..................................................................03
BEFORE & AFTER INSTALLATION ......................05
Before Installation ................................................................................ 05
After Installation ................................................................................... 05
ELECTRICAL INSTALLATION ...............................06
Danger ................................................................................................. 06
Electrical Connections ......................................................................... 06
Diodes .................................................................................................06
Series Connection ...............................................................................06
Parallel Connection .............................................................................07
General Wiring.....................................................................................07
Earth Grounding ..................................................................................07
MECHANICAL INSTALLATION ..............................08
Module Mounting ................................................................................. 08
Site Consideration ...............................................................................08
Mounting Methods ............................................................................... 08
DISCLAIMER OF LIABILITY / DISPOSAL .............10
TRANSPORTING AND STORAGE ........................10
REVISIONS TABLE ................................................10
PRODUCT SPECIFICATIONS ................................ 11
Electrical & Mechanical Properties ...................................................... 11
Dimensions of Modules .......................................................................13
APPENDIX ..............................................................14
03
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.
DANGER WARNING CAUTION
Non-compliance with the instructions may cause product
damage, product failure, and/or serious bodily injury or
death.
DANGER
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.
WARNING
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.
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 qualied expert.
Failure to comply may result in
serious bodily injury or death.
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.
Do not bending junction box's
cable. While under stress, it may
occur module damage. Cable
bending radius should be more
than 4 times the cable diameter,
at least.
CAUTION
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.
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.
04
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
.
Do not scratch the coating
surface of the frame.
Scratches may decrease the total
solar output due to corrosion of
the frame.
Do not articially concentrate
sunlight on the solar module
surface. Failure to comply may
result in product damage or
failure.
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.
Module
Installing structure
(bent type)
Module
Installing structure
(Stralght type)
Product
Deformation
Occurrence
of space
05
BEFORE & AFTER INSTALLATION
Before Installation
Please carefully read this manual before installation.
•Solar module installation and maintenance must be
performed by qualied and authorized installer.
•All installation instructions should be read and
understood before performing any installation.
•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.
•Panels are not intended for use indoors or on moving
vehicles of any kind.
•Industry standard rated specications are made at
conditions of 1000W/m
2
irradiance and 25°C (77°F)
solar cell temperature. Colder temperatures may
substantially increase voltage and power.
•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 ammable 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.
•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.
•Dirt build-up on the surface of the panel may
cause active solar cells to be shaded and electrical
performance to be impaired.
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.
•Water, ethanol or a conventional glass cleanser with
a micro-ber 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.
•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.
•Perform the wiring work by connecting the connector
and wires to the stand away from the roof or ground.
06
Danger
•Avoid all electrical hazards when installing, wiring,
operating and maintaining all panels.
•Do not connect panels that have different electrical
properties or physical congurations 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.
•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.
•The induced overvoltage by lightning can cause the
system damage, you should design conductor loop
connection as minimum as possible.
•The junction box should not be opened. Opening the
junction box will 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
•Shock hazard may occur near the solar modules
electrical connections.
•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 specication
sheet.
•Please use only the same type of modules in a
combined source circuit.
•Do not disconnect the module under when it is
operating. Shock hazard may occur near the solar
modules connection means.
•When the module installing in series or in parallel (e.g.
using for extension cables), the connector of each
module should be the same products.
ELECTRICAL INSTALLATION
Diodes
•All LG modules are equipped with factory installed
bypass diodes. The factory-installed diodes provide
proper circuit protection for the systems within the
specied system voltage.
Diode specification and configuration
-+
1
D1 D2 D3
234
IF (AV) 25A
V
F (max) 0.6V
V
RRM 50V
T
j (max)
200°C
R
TH 2.0°C/W
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 the same.
•The maximum PV system voltage for that circuit shall
be calculated as the sum of the rated open-circuit
voltage of the series-connected PV modules corrected
for the lowest expected ambient temperature. For the
LG Mono crystalline modules, the rated open-circuit
voltage shall be multiplied by the correction factor
provided in NEC Table 690.7. The maximum current
of Photovoltaic Source Circuit Currents shall be the
rated short-circuit current of the series-connected
module multiplied by 125 percent in accordance with
NEC article 690.8.
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