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General Installation Manual
© July 1, 2008. SANYO Energy (USA) Corp. All Rights Reserved.
Module Terminations
A junction box as a terminal enclosure
is equipped for electrical connections.
Modules are equipped with MC4
locking plugs as a terminal enclosure.
TM
Use these MC4
locking plugs for
electrical connections.
Junction Box and Terminals
Modules
are
equipped
junction box and contain terminals for
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 junction
box (see Figure 4).
Cable
Connector
TM
MC
Plug
Option :
Safety lock clip
negative ( - )
positive ( + )
Figure 4 Configuration of
Junction Box
Conduit
For applications where wire conduits
are used, follow the applicable codes
for outdoor installation of wires in
conduits.
Verify that all fittings are properly
installed
to
protect
damage and prevent moisture intrusion.
Bypass Diodes
When modules in series strings are
partially shaded, it may cause reverse
TM
voltage across the cells or modules,
because the current from other cells in
the same series is forced to flow
through the shaded area.
cause undesirable heating to occur.
The use of a diode to bypass the
shaded area can minimize both heating
with
one
and array current reduction.
Modules are equipped with factory
installed bypass diodes. The factory
installed diodes provide proper circuit
protection for the systems within the
specified system voltage, so that you
do not need any other additional
bypass diodes.
MAINTENANCE
Some maintenance is 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, twice or more per year.
A mild non-abrasive detergent may be
applied for persistent dirt.
It is also recommended to inspect the
electrical and mechanical connections
annually.
If you need electrical or mechanical
inspection or maintenance, have a
licensed authorized professional carry
out the inspection or maintenance to
avoid the hazards of electric shock or
injury.
As part of SANYO's policy of continuous
improvement, SANYO reserves the right to
change product specifications at any time
without prior notice.
For further information, please visit
sanyo.com/solar
Authorized Representative.
wires
against
This may
or contact your SANYO
5
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