KTA09001 Ver. 3.11
PLEASE READ THIS MANUAL CAREFULLY BEFORE USING THE MODULES
INSTALLATION MANUAL
PHOTOVOLTAIC MODULES-
NA-V121HR, NA-V128HR, NA-V135HR
# USER MANUAL p.2
# GENERAL INSTALLATION MANUAL p.2 ~ p.5
# INSTALLATION MANUAL -PHOTOVOLTAIC MODULES- p.6 ~ p.7
ELECTRICAL OUTPUT AND THERMAL CHARACTERISTICS p.7
- 1 - Installation Manual for PV modules
PLEASE READ THIS MANUAL CAREFULLY BEFORE USING THE MODULES
USER MANUAL -PHOTOVOLTAIC MODULE-
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important safety instructions for the photovoltaic
(PV) module that must be followed during the maintenance of PV
modules.
To reduce the risk of electric shock, do not perform any servicing
unless you are qualified to do so.
1. The installation must be performed by a certified installer/servicer
to ensure system integrity and safety.
2. The installation is only allowed after referring to and
understanding the GENERAL INSTALLATION MANUAL and the
INSTALLATION MANUAL -PHOTOVOLTAIC MODULE. If you
don’t have your personal copy, please contact your installer or
local Sharp office listed on the Sharp Solar web site:
http://www.sharpusa.com/SolarElectricity.aspx
3. Do not pull the PV cables.
CAUTION: HIGH VOLTAGE
To reduce the risk of electric shock, do not touch.
GENERAL INSTALLATION MANUAL
FOR SHARP PV MODULES
PLEASE READ THIS MANUAL CAREFULLY BEFORE INSTALLING OR USING THE MODULES.
INSTALLERS SHOULD PROVIDE THIS MANUAL TO YOUR CUSTOMER.
1. INTRODUCTION
This Installation Manual contains essential information for the electrical
and mechanical installation that you must know before installing
SHARP PV modules. This also contains safety information you need to
be familiar with. All the information described in this Manual is the
intellectual property of SHARP and based on the technologies and
experiences that have been acquired and accumulated in the long
history of SHARP. This document does not constitute a warranty,
expressed or implied. SHARP does not assume responsibility and
expressly disclaims liability for loss, damage, or expense arising out of
or in any way connected with installation, operation, use or
maintenance of the PV modules. No responsibility is assumed by
SHARP for any infringement of patents or other rights of third parties
that may result from use of PV module. SHARP reserves the right to
make changes to the product, specifications or Installation Manual
without prior notice.
2. GENERAL INFORMATION
(INCLUDING WARNING AND SAFETY)
The installation of PV modules requires a great degree of skill and
should only be performed by a qualified and appropriately licensed
professional, including licensed contractors and licensed electricians.
Please be aware that there is a serious risk of various types of injury
occurring during the installation including the risk of electric shock.
SHARP PV modules are either equipped with a permanently attached
junction terminal box that will accept a variety of wiring applications or
equipped with a pre-terminated cable assembly for ease of installation.
< GENERAL WARNING >
1. PV modules are heavy. Handle with care.
2. Before you attempt to install, wire, operate and maintain the PV
module, please make sure that you completely understand the
information described in this Installation Manual.
3. Contact with electrically active parts of a PV module such as
terminals can result in burns, sparks and lethal shock whether the
KTA09001 Ver. 3.11
4. Do not touch any surface of module.
5. Do not place/drop objects on the PV module.
6. Do not disassemble or attempt to repair the PV module by
yourself.
7. Do not drop the PV module.
8. Do not damage, pull, bend, or place heavy material on cables.
9. Upon completion of any service or repairs, ask the
installer/servicer to perform routine checks to determine that the
PV modules are in safe and proper operating condition.
10. When replacement parts are required, be sure the
installer/servicer uses parts specified by the manufacturer with
same characteristics as the original parts. Unauthorized
substitutions may result in fire, electric shock, or other hazard.
11. Consult your local building and safety department for required
permits and applicable regulations.
PV module is connected or not.
4. PV modules produce electricity when the sufficient sunlight or other
sources illuminate the module surface. When the modules are
connected in series, voltage is cumulative. When the modules are
connected in parallel, current is cumulative. PV systems can
produce high voltage and current which could present an increased
hazard and may cause serious injury or death.
5. Do not connect the PV modules directly to loads such as motors
since the variable output power of the PV modules (dependent on
solar irradiation) may cause damage to the connected motor.
< GENERAL SAFETY >
1. Consult local codes and other applicable laws concerning required
permits on regulations concerning installation and inspection
requirements.
2. Before installing a PV module, contact appropriate authorities to
determine permit, installation and inspection requirements that
should be followed.
3. Install PV modules and ground frames in accordance with
applicable rules and regulations.
4. PV modules should be installed and maintained by qualified
personnel. Only installer/servicer personnel should have access to
the PV module installation site.
5. No matter where the PV modules are installed, either roof mounted
construction or any other type of structures above the ground,
appropriate safety practices should be followed and required safety
equipment should be used in order to avoid possible safety
hazards. Note that the installation of some PV modules on roofs
may require the addition of fireproofing, depending on local
building/fire codes.
6. For PV modules that are non-integral type, the modules are to be
mounted over a fire-resistant roof.
7. PV modules connected in series should have the same cell size.
8. Follow all safety precautions of other components used in the
system.
9. In order to avoid a risk of injury or electrical shock, do not allow
- 2 - Installation Manual for PV modules
anyone to approach the PV module if the person has little
knowledge about PV modules or the measures that should be
taken when PV modules are damaged.
10. Do not shade portions of the PV module surface from the sunlight
for a long time. Shaded cells may become hot (hot spot
phenomenon) which may result in permanent damage, e.g.,
solder joints peeling off.
11. Do not clean the glass surface with chemicals. Do not let water
stay on the glass surface of PV modules for a long time. This
creates a risk of white efflorescence (glass disease) which may
result in reduced energy generation.
12. Do not install the PV module horizontally. It may cause dirt or white
efflorescence (glass disease) due to water. A minimum tilt of 5
degrees from the horizontal is required; a tilt of 10 degrees or more
is recommended (a higher tilt angle will contribute to cleaning the
surface during rainstorms).
13. Do not cover the water drain holes of the frame. There is a risk of
frost damage when the frame has water in it.
14. When sliding snow load has to be considered, an appropriate
measure must be taken so that the lower edge of the PV module
frame will not be damaged.
15. Do not expose PV modules to sunlight concentrated with mirrors,
lenses or similar means.
16. Should a problem occur, immediately turn off inverters and circuit
breakers.
17. In case the glass surface of a PV module is broken, wear goggles
and tape the glass to keep the broken pieces in place prior to
removing the module.
18. A defective PV module may generate power even if it is removed
from the system. It may be dangerous to handle the PV module
while exposed to sunlight. Place a defective PV module in a carton
so PV cells are completely shaded.
19. In case of series connection, the maximum open circuit voltage,
when considering the effect of temperature, must not be greater
than the specified maximum system voltage. Voltage is
proportional to the number of PV modules in series. In case of
parallel connection, please be sure to take proper measure (e.g.,
fuse for protection of module and cable from over current, and/or
blocking diode for prevention of unbalanced strings voltage) to
block reverse current flow; otherwise, current may easily flow in
reverse.
< HANDLING SAFETY >
1. Do not cause an excessive load on the surface of PV module or
twist the frame. The glass surface can easily break.
2. Do not stand or step on the PV module. The surface glass of PV
module is slippery.
3. Do not hit or put excessive load on the glass or back sheet. The PV
cell is very thin and can be easily broken.
4. Do not scratch or hit the back sheet. The back sheet is vulnerable.
5. Do not hit the terminal box; do not pull the cables. The terminal box
can crack and break.
6. Never touch the terminal box or the ends of output cables with bare
hands when the PV module is illuminated. During handling and
installation, cover the surface of PV module with cloth or other
suitable sufficiently opaque material to shield the PV module from
incident light and handle the wires with rubber-gloved hands to
avoid electric shock.
7. Do not scratch the output cable or bend it with force. The cable
insulation can break and may result in electricity leakage or shock.
8. Do not pull the output cable excessively. The output cable may
come undone and cause electricity leakage or shock.
KTA09001 Ver. 3.11
9. Do not drill holes in the frame. It may compromise the frame
strength and cause corrosion of the frame.
10. Do not scratch the coating of the frame (except for grounding
connection). It may cause corrosion of the frame or compromise
the frame strength.
11. Do not loosen or remove the screws in the frame. It may
compromise the strength of PV module and cause corrosion.
12. Do not handle the PV module with bare hands. The frame has
sharp edges and may cause injury.
13. Do not drop PV module or allow objects to fall down on the PV
module.
14. Do not artificially concentrate sunlight on the PV module.
15. Do not lift the PV module by only one side. The frame may bend.
Lift the PV module by holding two (opposite) sides.
< INSTALLATION SAFETY >
1. Always wear protective head gear, insulating gloves and safety
shoes (with rubber soles).
2. If the PV modules are delivered in cartons, keep them packed in
the cartons until installation.
3. Do not touch the PV module unnecessarily during installation. The
glass surface and the frames may become hot. There is a risk of
burn, or electric shock.
4. Do not work under rain, snow or windy conditions.
5. Use insulated tools.
6. Do not use wet tools.
7. Do not drop tools or hard objects on PV modules.
8. When installing PV modules far above ground, do not drop any
object (e.g., PV module or tools).
9. Make sure flammable gases are not generated near the installation
site.
10. Completely cover the PV module surface with an opaque material
during PV module installation and wiring.
11. For modules with connectors, ensure connections are fully plugged
together.
12. Due to the risk of electrical shock, do not perform any work if the
terminals of PV module are wet.
13. Do not touch the terminal box or the cable ends (connectors) with
bare hands during installation or under sunlight, regardless of
whether the PV module is connected to or disconnected from the
system.
14. Do not unplug the connectors if the system circuit is connected to a
load. The connectors are not rated for load-break.
15. Do not stand or stomp on the glass. There is a risk of injury or
electric shock if glass is broken.
16. Do not work alone (always work as a team of 2 or more people).
17. Wear a safety belt if working far above the ground.
18. Do not wear metallic jewelry which can cause electric shock during
installation.
19. Do not damage the back sheet of PV modules when fastening the
PV modules to a support structure.
20. Do not damage the surrounding PV modules or mounting structure
when replacing a PV module.
21. Use UV rated cable ties or other methods to cinch loose cables.
Drooping cables could cause various problems such as facilitating
damages by animals or electricity leakage (from cables lying in
puddles).
22. Take proper measures for preventing the laminate (consisting of
cells, glass, back sheet, etc.) from dropping out of the frame in
case the glass is broken.
23. Cables shall be located so that they will not be exposed to direct
sunlight after installation to prevent degradation of cables.
24. Do not put anything (e.g. tools, clothes, etc.) on the modules
- 3 - Installation Manual for PV modules
during their installation; if only a portion of a module is shaded, the
shaded part may heat up.
3. COMPONENTS
Connector
Electrical
cable
Label
Terminal box
Frame
Figure 1. The exact location of the label and terminal box is
product-specific.
4. SITE SELECTION
PV modules should be installed in a location where the PV modules
will be unshaded throughout the year. In the Northern Hemisphere, the
PV modules should typically face south, and in the Southern
Hemisphere, the PV modules should typically face north.
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 salt wat er may cause
damage, please consult with SHARP in advance 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 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 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 based on matching monthly output to monthly
load; for loads that are relatively constant throughout the year, the
optimum tilt is determined when 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 an angle between the latitude and
latitude-minus-15-degrees of the installation site so that the power
generation from the PV module will be optimum throughout the year.
It is recommended to use software intended for PV system design to
determine the optimum tilt angle for your location and application.
6. WIRING
To ensure proper system operation and to maintain your warranty,
observe the correct cable connection polarity (Figures 2 & 3) when
connecting the modules to a battery or to other modules. If not
connected correctly, the bypass diodes could be destroyed.
PV modules can be wired in series to increase voltage. Connect wires
KTA09001 Ver. 3.11
from the positive terminal of one module to the negative terminal of the
next module. Figure 2 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 3 shows modules connected in parallel. Note
that 3 bypass diodes per module are illustrated. Some module
models may have as few as one bypass diode; other models have as
many as four bypass diodes.
Figure 2. SERIES for more voltage
Figure 3. PARALLEL for more current
7. INSTALLATION
Refer to Installation Manual of specific model PV module.
8. ELECTRICAL RATINGS
Refer to Installation Manual of specific model PV module.
9. GROUNDING
All PV modules must be grounded by electrical connection of the
module frames to ground. 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 marked holes (marked with the symbol for an
earth ground) on the frame for either bolt, nut and washer, 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 4. 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 selected according to
the requirement of local applicable regulations.
Figure 4. Example of acceptable ground connection
10. MOUNTING
Please make sure that all the information described in the installation
- 4 - Installation Manual for PV modules
manual is still valid and proper for your installation. The mounting
method has been verified by SHARP (NOT CERTIFIED by a third party
organization).
The approved way to mount Sharp PV modules to a support structure
is using the bolt holes provided as described in the Specifications.
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 warranty may be void if customer-selected frame clips
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 the methods described in the Manual
may void your warranty. This module satisfies the requirement of
mechanical load test at 2400Pa in accordance with IEC61646. Support
structures that PV modules are mounted on should be rigid. Sharp PV
modules are designed to deliver their electric performance under the
condition that they are mounted on rigid support structures.
KTA09001 Ver. 3.11
Deformation of a support structure may damage a PV module mounted
to the structure, thereby affecting safety, output, and longevityand
possibly voiding the warranty.
PV module temperature can be affected by airflow beneath the module.
Because the module produces more power when operating at a cooler
temperature, it is important to provide for air flow beneath the module.
Ensure that at least 25 mm of clearance exists between the lowest part
of the PV module and the underlying surface (e.g., roof surface); when
practical this clearance should be at least 100 mm..
11. MAINTENANCE
PV modules are designed for long life and require very little
maintenance. If the angle of the PV module is 5 degrees or more,
normal rainfall is sufficient to keep the module glass surface clean
under most weather conditions. If dirt build-up becomes excessive,
clean the glass surface only with a soft cloth using water. The use of
distilled water will minimize residue on the glass surface. If cleaning
the back of the module is required, take utmost care not to damage the
backside materials. In order to ensure the operation of the system,
please check wiring connections and the condition of the wire
insulation every now and then.
- 5 - Installation Manual for PV modules
INSTALLATION MANUAL - PHOTOVOLTAIC MODULES-
NA-V121HR, NA-V128HR, NA-V135HR
1. INSTALLATION
The mounting methods described herein have been verified by SHARP
and NOT CERTIFIED by a third party organization. Please review the
descriptions and drawings carefully; not mounting the modules
according to this method may void your warranty. This module satisfies
the requirement of mechanical load test at 2400Pa in accordance with
IEC61646.
Mounting Using Clips on Long Edge of Module: Long Edge
Perpendicular to Array Rails (Figure 1)
The modules may be mounted using clips on the long sides of the
module when the array rails are perpendicular to the long sides, as
shown in Figure 1. The clip centerlines must be between 6.2” (157.5
mm) and 16.44” (417.5 mm) from the ends of the module. Note that
the mounting clips should meet the minimum dimensions (catch
width of 0.2” (5 mm) and length of 1.2” (30 mm) shown in Figure 2.
The array rails must support the bottom of the modules and must be
continuous pieces (no breaks in the rail). The rails should not be
twisted or out-of-flat. As depicted in Figure 1, the rails should be
parallel.
Installation orientation
The PV module’s cells are defined by a striped line pattern. Avoid
shade from covering the cell area.
PV modules must be installed in the vertical position (aka “portrait”)
as shown in Figure 1. Installation in a horizontal position (aka
“landscape”) as shown in Figure 3 is prohibited. Permanent damage
may occur, or a delamination of thin film silicon may appear if PV
modules are installed horizontally and are covered by snow, dust or
dirt.
5mm Min.
Catch Width
Frame
10mm Min.
Support Width
6.2” (157.5 mm) ＜ s ＜ 16.44” (417.5 mm)
Figure 1
.
n
i
h
M
t
g
m
n
e
m
l
0
h
3
c
t
a
C
Clip
Rail
Figure 2
Prohibited
Figure 3
KTA09001 Ver. 3.11
Caution
The mounting methods shown in Fig. 4 are prohibited.
Prohibited
2. ELECTRICAL INSTALLATION INSTRUCTION
Cable characteristics
Size: 2.5 mm2 Type: CE cable
Temperature rating of conductor: -40 to 90 °C
Module configuration
# Maximum series configuration: please refer to Table 1
(This value is calculated under the condition of Voc at -40°C.
Your installation may consider a different temperature; in addition,
the number of modules in series should be determined based on
the input voltage of the load – such as an inverter)
# Maximum parallel configuration: (Parallel connections of source
circuits must be conducted according to either of the following two
options. Any other parallel connections are prohibited.)
a) Case of using the fuses: A fuse must be used in each source
circuit to protect modules from reverse current over load.
b) Case of using the diodes: Connect a blocking diode every 1 or 2
source circuits to protect modules from reverse current over load.
If reverse current can be prevented through other means, e.g., by
power generation control or other system protection, it may be
possible to avoid the use of fuses or diodes. Applicable codes
should be consulted prior to finalizing the system design.
Inverter
Only inverters that provide for grounding the negative leg of the PV
modules shall be used. The negative leg must be grounded; otherwise
permanent damage to the PV modules can occur.
- 6 - Installation Manual for PV modules
16.44” (417.5 mm) < s s < 6.2” (157.5 mm) Clips on Short Edge
Prohibited Prohibited
Figure 4
KTA09001 Ver. 3.11
A
3. WARNING
Do not stand or step on the PV module (Frame, Glass, Back skin and Terminal box).
4. ELECTRICAL OUTPUT
Rated electrical characteristics are within ±10 percent of the indicated values of Isc, Voc, and +10/-5 percent of Pmax under STC (standard test
conditions) (irradiance of 1000 W/m
conditions are specified elsewhere in this Manual.
2
, AM 1.5 spectrum as defined in ASTM G-173-03, and a cell temperature of 25 °C (77 °F). The warranty
Table-1. Electrical characteristics (at STC)
Model
name
(*1)
Type
Initial /
Stable
(Nominal)
Maximum
Power
(Pmax)
OpenCircuit
Voltage
(Voc)
ShortCircuit
Current
(Isc)
Voltage
at
Point of
Max.
Power
(Vmpp)
Current
at
Point of
Max.
Power
(Impp)
Maximum
system
voltage
Over-
current
protection
pplicat
ion
class
Maximum
series
configuration
Initial 142.4 243 0.860 196 0.727
NA-V121HR Tandem
Stable
(nominal)
121 238 0.830 180 0.673
1000V 2A A 3
Initial 150.6 243 0.875 202 0.746
NA-V128HR Tandem
Stable
(nominal)
128 238 0.846 186 0.688
1000V 2A A 3
Initial 158.9 252 0.89 202 0.79
NA-V135HR Tandem
(*1)
Tandem: amorphous silicon / microcrystalline silicon tandem structure cell
Stable
(nominal)
135 249 0.87 188 0.72
1000V 2A A 3
System design should consider both initial values and nominal values. Nominal values are reached after a one-time degradation from initial values.
This degradation takes place during the first few months of exposure.
Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current and/or voltage than reported at
Standard Test Conditions. Accordingly, the values of Isc and Voc marked on this module should be multiplied by a factor of 1.25 when determining
component voltage ratings, conductor capacities, fuse sizes and size of controls connected to the module output.
- 7 - Installation Manual for PV modules
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