General Installation Manual
© July 1, 2008. SANYO Energy (USA) Corp. All Rights Reserved.
5
Module Terminations
A junction box as a terminal enclosure
is equipped for electrical connections.
Modules are equipped with MC4
TM
locking plugs as a terminal enclosure.
Use these MC4
TM
locking plugs for
electrical connections.
Junction Box and Terminals
Modules are equipped with one
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).
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 wires against
damage and prevent moisture intrusion.
Bypass Diodes
When modules in series strings are
partially shaded, it may cause reverse
voltage across the cells or modules,
because the current from other cells in
the same series is forced to flow
through the shaded area. This may
cause undesirable heating to occur.
The use of a diode to bypass the
shaded area can minimize both heating
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
or contact your SANYO
Authorized Representative.
Cable
Connector
MC
TM
Plug
Option :
Safety lock clip
Figure 4 Configuration of
Junction Box
negative ( - )
positive ( + )
