Panasonic VBHN240SE10 General Installation Manual page 4

each cable after confirming the
polarity of them is correct.
Cable conduits should be used in
locations where the
inaccessible to children or small
animals.
Module Wiring
The maximum
VBHNxxxSE series
wired in series is sixteen (16).
The maximum
VBHHxxxAE series
wired in series is twenty (20).
Modules shall not be wired in
parallel without maximum over
current protection.
When installing a PV array, the
system design must be completed
with reference to
electrical specifications for proper
selection of inverters,
breakers, charging
batteries and other storage devices.
These modules contain
installed bypass diodes. If these
modules are connected each other
incorrectly, the bypass
cable, or junction box may be
damaged.
Array Wiring
The term "array"
describe the assembly of several
modules on a support structure
with associated wiring.
Use copper wire that is sunlight
resistant and is
withstand the maximum possible
system open circuit voltage.
Check your local
requirements.
Earth Ground Wiring
The kind of the earth construction
shall conform to IEC61730-1.
Bonding shall be by a positive
means, such as clamping, riveting,
bolted or screwed connections, or
welding, soldering or brazing. The
bonding connections
penetrate all
coatings, such as paint, anodized
coatings or vitreous enamel.
A wiring terminal
location of module intended to
accommodate a
equipment-grounding
shall be identified
appropriate symbol (IEC 60417-
5019(DB: 2002-10)) or shall have a
green-colored part.
Grounding should be carried out by
the attachment to the module or
array frame, to avoid the hazards
of electric shock or fire.
wiring is Module Terminations
A
enclosure is equipped for electrical
connections on Panasonic modules.
Modules are equipped with MC
number of
plugs or SMK plugs as a terminal
that can be
enclosure. Use these MC
or
number of
connections.
that can be
If
connectors are provided, they shall
be configured or arranged so that
the other and vice-versa will not
accept the mating connector for
one, if it will result in an improper
connection.
the module
Please
Authorized
fuses,
questions regarding other electrical
controllers,
connections if needed.
factory
Junction Box and Terminals
Modules
junction box contain terminals for
diodes,
both positive and negative polarity,
and bypass diodes.
One terminal is dedicated to each
polarity (with the polarity symbols
engraved onto the body of the
is used to
junction box) (see Figure 3-1 or 3-2).
Conduit
For
conduits
insulated to
applicable
installation of wires in conduits.
Minimum diameter of wire conduit
codes for
is 4 mm
Verify that all fittings are properly
installed to protect wires against
damage
intrusion.
DIODES
Bypass Diodes
When the modules in series strings
are shaded partially, it may cause
shall
reverse
non-conductive
modules, because the current from
other cells in the same series is
forced to flow through the shaded
or bonding
area.
heating to occur.
field installed
The use of a diode to bypass the
conductor
shaded area can minimize both
with the
heating
reduction.
All modules are equipped with
factory installed bypass diodes. The
factory
proper circuit protection for the
junction box as a terminal
TM
SMK plugs for electrical
two or more separable
contact your
Representative
equipped with
applications where
are used, follow
codes for outdoor
2 .
and prevent moisture
voltage across cells
This may cause undesirable
and array
installed diodes provide
4
systems within the specified system
voltage, so that you do not need
any other additional bypass diodes.
Specifications of bypass diode for
VBHNxxxSE series are as follows;
Number of bypass diode: 3 diodes,
Number of series cells per bypass
TM
diode: 24 cells / diode (See Figure
4-1).
Specifications of bypass diode for
plugs
VBHHxxxAE series are as follows;
Number of bypass diode: 3 diodes,
Number of series cells per bypass
diode: 96 cells / diode (1st and 3rd
block, 2 parallels of 48 cells series),
48 cells / diode (2nd block, 2
parallels of 24 cells series) (See
Figure 4-2).
Contact your SANYO Authorized
Representative for proper diode
SANYO
type, if it is necessary to add or
with
change diodes
specifications.
MAINTENANCE
Some
one
recommended to maintain optimal
output performance of the solar
modules.
If the module surface becomes
dirty, it may reduce output power.
It is recommended to clean the
surface of the module with water
and a soft cloth or sponge.
To remove
module can be washed with a
wire
micro-fiber cloth and ethanol.
the
Alternatively, a mild detergent may
be used.
detergent,
detergent
detergent to clean any part of the
module.
It is also recommended to inspect
the electrical
connections annually.
If you need electrical or mechanical
inspection or maintenance,
recommended to have a licensed
authorized professional carry out
the inspection or maintenance to
or
avoid the hazards of electric shock
or injury.
The return of any modules will not
be accepted by SANYO unless prior
written authorization
given by SANYO.
As part of our policy of continuous
improvement SANYO reserves the
current
right to
specifications at any time without
prior notice.
due to system
maintenance is
persistent dirt, the
Never use abrasive
strong alkaline
and strong acid
and mechanical
it is
has been
change product
April 2012