Sharp NA-F GK Serie Manual De Instalación página 11

Please make sure that there are no obstructions in the surroundings of
the site of installation. Take proper steps in order to maintain reliability
and safety, in case the PV modules are used in areas such as: Heavy
snow areas / Extremely cold areas / Strong wind areas / Installations
over, or near, water / Areas where installations are prone to salt water
damage(*) / Small islands or desert areas.
(*) If you are planning to use the PV modules where the salt water damage
may be possible, please consult with SHARP local agent first to determine an
appropriate installation method, or to determine whether the installation is
possible.
5. TILT ANGLE
The tilt angle of the PV module is the measured between the PV
module and a horizontal ground surface. The PV module generates the
maximum output power when it faces the sun directly.
For the standalone systems with a battery where the PV modules are
attached to a permanent structure, the tilt angle of the PV modules
should be determined to optimize the performance when the sunlight is
the scarcest. In general, if the electric power generation is adequate
when the sunlight is the scarcest, then the angle chosen should be
adequate during the rest of the year. For grid-connected installations
where the PV modules are attached to a permanent structure, it is
recommended to tilt the PV module at the angle equal to the latitude of
the installation site so that the power generation from the PV module
will be optimum throughout the year.
6. WIRING
To ensure proper system operation and to maintain your guaranty,
observe the correct cable connection polarity (Figures 1 & 2) when
connecting the modules to a battery or to other modules. If not
connected correctly, the bypass diode could be destroyed.
PV modules can be wired in series to increase voltage. Connect wires
from the positive terminal of one module to the negative terminal of the
next module. Figure 3 shows modules connected in series.
Connect PV modules in parallel to increase current. Connect wires
from the positive terminal of one module to the positive terminal on the
next module. Figure 4 shows modules connected.
Figure 3. SERIES for more voltage
Figure 4. PARALLEL for more current
CAUTION!: Please keep the open-circuit condition in the PV
modules before completing the electrical wiring of PV system.
7. INSTALLATION
Refer to installation manual of PV module.
8. ELECTRICAL RATINGS
Refer to installation manual of PV module.
9. GROUNDING
The frame grounding is considered within the requirement and
regulation at the site of installation. When needed this grounding,
please refer to below example of connection. Please be careful in
arranging the system ground so that the removal of one module from
the circuit will not interrupt the grounding of any other modules.
The modules should be grounded to the same electrical point as
described below.
Each PV module has a hole on the side frame for either bolt, nut and
washer grounding the module to the frame, a ground lug fastened by
bolt or screw, or appropriate screw (hardware not provided). An
example of acceptable ground connection using a bolt, nut and washer
retaining a ground lug is shown in figure 5. In a connection of this type,
the hardware (such as a toothed locked washer / star washer) must
score the frame surface to make positive electrical contact with the
frame. The ground wire must be considered within the requirement of
local and regulation at the site of installation.
Figure 5. Example of ground connection
10. MOUNTING
Please make sure that all the information described in the installation
manual is still valid and proper for your installation. The mounting
method has been verified by SHARP and NOT CERTIFIED by a third
party organization.
Although Sharp does not specify or warrant frame clips or clamps,
using frame clips (not provided) or clamps (not provided) is also
possible when they are designed for PV modules and with minimum
dimensions on the sides of the module in accordance with the
instructions and drawings provided. If using frame clips or clamps, the
modules should be fixed rigidly and there shall be no damage to the
modules by deforming mounting structure against design load. The
Sharp module guaranty may be void if customer-selected frame clips
which are improper or inadequate with respect to the module
properties (including strength or material) or installation. Note that if
metal clips are used, there must be a path to ground from the clips, (for
instance, using star washers in the clip hardware set).
Please review the descriptions and drawings carefully; not mounting
the modules according to one of these methods may void your
guaranty. Support structures that PV modules are mounted on should
be rigid. Sharp PV modules are designed to secure their electric
performance under the condition that they are mounted on rigid
support structures. Deformation of support structure may damage PV
module with its electric performance.