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General Installation Manual
© Apr 2010, Sanyo Electric Co., Ltd. All Rights Reserved 4/22/10
Method 1- Use a self tapping screw (see
Figures 3.1 and 3.2)
• If using this method, use one of the
smaller
holes
with
0.165'' (4.2 mm)
• The self-tapping screw size must be
No.10 (0.190'' diameter (4.83mm)).
• This method requires a minimum
number of threads-per-inch to achieve
an adequate electrical connection. For
a single screw, the thread pitch must
be at least 32 threads per inch (TPI).
A single screw less than 32 TPI does
not provide sufficient thread contact.
Note: Self-tapping screws are also
called as thread cutting screws.
Method 2- Use a bolt and nut (see
Figures 3.1 and 3.3)
• If using this method, use one of the
larger
holes
with
0.205'' (5.2 mm)
The bolt and nut size should be No.8
(0.164'' diameter (4.16 mm)), or No.10
(0.190'' diameter (4.83 mm)) or M5
(0.197'' diameter (5.0 mm)).
• Star washers must be used to make
contact through the anodization of the
module for this method.
• In this case, the screw threads are not
providing the electrical ground contact.
Module Terminations
A junction box as a terminal enclosure
•
is equipped for electrical connections.
Modules are equipped with MC
•
as a terminal enclosure. Use these
TM
MC
plugs for electrical connections.
Junction Box and Terminals
Modules equipped with one junction
•
box 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
damage and prevent moisture intrusion.
DIODES
Bypass Diodes
When modules in series strings are
•
diameter
of
partially shaded, it may cause reverse
voltage
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
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.
diameter
of
Contact
•
Representative for proper diode type, if
it is necessary to add or change diodes
due to system specifications.
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
•
TM
plugs
applied for persistent dirt.
It is also recommended to inspect the
•
electrical and mechanical connections
annually.
If you need electrical or mechanical
•
inspection
recommended to have a licensed
authorized professional carry out the
inspection or maintenance to avoid the
hazards of electric shock or injury.
The return of any modules will not be
accepted by SANYO unless prior written
authorization has been given by SANYO.
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
wires
against
sanyo.com/solar
Authorized Representative.
across
cells
or
modules,
This may
your
SANYO
Authorized
or
maintenance, it
or contact your SANYO
4
P V U - B 5 0 . 2
I P 6 5
6 0 0 V
P V U - B 5 0 . 2
Cable
Connector
TM
MC
Option :
Safety lock clip
negative ( - )
Figure 4 Configuration of
Junction Box
is
Plug
positive ( + )
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