Kyocera KC-TYPE User manual

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1. INTRODUCTION
As the world leader in high technology ceramic/silica
applications, Kyocera has stepped into the forefront in
development of multicrystalline solar modules. Kyocera
began researching photovoltaics in 1975 and has
supplied many thousands of modules throughout the
world since 1978. Its years of experience and state-of-
the-art technology have produced quality solar modules
in a range of sizes to meet the energy needs of the
growing solar market.
2. POWER MODULES
Kyocera "KC" series modules come in various sizes to
satisfy a full range of applications. Each module is made
of multi- crystalline cells manufactured by the "casting"
method. These cells cover nearly 100% of the module's
surface. To protect the cells from the most severe-
environmental conditions, they are encapsulated
between a tempered glass cover and an EVA pottant
with PVF back sheet. The entire laminate is installed in
an anodized aluminum frame for structural strength and
ease of installation.
3. APPLICATIONS
Kyocera modules are a reliable, virtually maintenance
free power supply, designed to operate efficiently in
sunlight. Kyocera solar modules are ideal for charging
storage batteries used to power remote homes,
recreational vehicles, boats, telecommunication systems
and other electric generation application.
4. MOUNTING SITE SELECTION
The solar modules should be mounted in a location
where they will receive maximum sunlight throughout the
year. In the Northern Hemisphere, the modules should
face south, and in the Southern Hemisphere, the
modules should face north. Modules facing 30 degrees
away from true South (or North) will lose approximately
10 to 15 per cent of their power output. If the module
faces 60 degrees away from true South (or North), the
power loss will be 20 to 30 per cent. When choosing a
site, avoid trees, buildings or obstructions which could
cast shadows on the solar modules especially during the
winter months when the arc of the sun is lowest over the
horizon.
5. MODULE TILT ANGLE
Solar modules produce the most power when they are
pointed directly at the sun. For installations where the
solar modules are mounted to a permanent structure,
the solar modules should be tilted for optimum winter
performance. As a rule, if the system power production
is adequate in the winter, it will be satisfactory during the
rest of the year. The module tilt angle is measured
between the solar modules and the ground (Figure 1).
6. MOUNTING THE MODULE
The frame of each module has fourteen 7 mm Ú
diameter mounting holes (Figure 2). These are used to
secure the modules to the supporting structure. The
example of a ground mounted structure is shown in
Figure 3. The four holes close to the corners of the
module are most often used for mounting. Clearance
between the module frame and the mounting surface
may be required to prevent the junction box from
touching the surface, and to circulate cooling air around
the back of the module. In case the modules will be
mounted on the roof or wall of a building, the standoff
method or the rack method are recommended.
STANDOFF: The modules are supported parallel to the
surface of the building wall or roof. Clearance between
the module frames and surface of the wall or roof is
required to pre- vent wiring damage and to allow air to
circulate behind the module.
The recommended standoff height is 4.5 in. (about 115 mm)
If other mounting means are employed, this may affect
the Listing For Fire Class Ratings.
RACK: The supporting frame is used to mount modules
at correct tilt angles. The modules are not designed for
integral mounting as part of a roof or wall. The mounting
design may have an impact on the fire resistance.
INSTALLATION MANUAL
FOR KYOCERA SOLAR MODULE
KC-TYPE SERIES
Please read this manual carefully before
installing the modules.
KYOCERA CORPORATION

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7. WIRING
Most of the larger KYOCERA POWER MODULES use
the "G" or "M" type junction box. This box, on the back
side of the module, is weatherproof and is designed to
be used with standard wiring or conduit connections.
Wiring methods should be in accordance to the NEC
(National Electrical Code). Bypass diodes and cable
clamps are included with each module when shipped
from the factory.
A. Open the "G" or "M" box cover by loosening the
screws in the cover. (Figure 4 and 5)
B. The wire typically used to interconnect the solar
modules should be single or two conductor, from 10
AWG(5.26 mm²) up to 14 AWG(2.08 mm²) gauge
stranded copper wire, in a "SUNLIGHT RESISTANT"
jacket UF cable. This cable is suitable for applications
where wiring is exposed to the direct rays of the sun.
The maximum and minimum diameter of the cable that
may be used with the cable connector are 8 mm and 6
mm respectively. (Figure 6)
C. Using a flat blade screwdriver, remove only the
appropriate "KNOCK-OUTS" from the sides of the
"G" or "M" box. (Figure 7 and 8)

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D. Read the enclosed instructions for routing wires
through the knock-outs and clamps. (Figure 9)
E. Remove approximately ½” of insulation on the ends of
the wires and insert them under the appropriate
"POSITIVE" or "NEGATIVE" terminal screws in the
junction box. The wires should be installed with some
slack; excess wire should be cut off. (Figure 7 and 8)
Install cable with appropriate hardware in accordance
with NEC Article 250 or national and international rules.
F. Gently tighten the terminal screws. Do not
overtighten, as the terminal can be damaged.
G. The output wiring from the final module is generally
run to a separate array junction box. In commercial
system, this wiring from the array box to the next
component (i.e. fuse box. or charge regulator, etc.) is
generally run in conduit. The maximum electrical rating
of an acceptable series fuse is 4 ~ 12 amperes.
H. After completing the wiring between all boxes, Close
and secure all the junction boxes.
8. GROUNDING
We recommend you attach all module frames to an earth
ground. Attach a separate ground wire to one of the
extra mounting holes on the module frame with a self-
tapping screw. The racks must also be grounded unless
they are mechanically connected by nuts and bolts to the
grounded modules.
Grounding is achieved by securing the array frame for
both roof and field mounted applications. Additionally,
the array frame shall be installed in accordance with
NEC Art 250.
9. BLOCKING DIODES
Blocking diodes can prevent nighttime battery
discharging caused and prevent modules from loss of
array output and being damaged or destroyed by
reverse current flow.
KYOCERA modules do not contain a blocking diode
when shipped from the factory, however most battery
charging regulators do have this feature.
10. BYPASS DIODES
Partial shading of an individual module in a 12 volt or
higher "series" string (i.e. two or more modules) can
cause a reverse voltage across the shaded module.
Current is then forced through the shaded area by the
other modules in series.
By having a bypass diode, the forced current will bypass
the shaded module in a series circuit, thereby minimizing
module heating and array current losses.
For 12-volt systems and higher: Each solar module
junction box has a diagram illustrating the proper
direction for the by- pass diode to be installed between
two of the terminal screws (Figure 11, Figure 12). When
the solar modules are connected as individual series
strings first, and then these strings are connected in
parallel, bypass diodes should be used in each junction
box. This is the simplest wiring arrangement for most
installations.
At a minimum the bypass diodes must have the following
electrical characteristics:
• Rated Average Forward Current [I
)$Y
] Above
maximum system current at highest operating
temperature.
• Rated Repetitive Peak Reverse Voltage [V
UUP
]
Above maximum system voltage at lowest
operating temperature.
11. MAINTENANCE
Solar modules require very little maintenance. It is not
un- common for a remote site to be checked but once
per year. Under most conditions, normal rainfall is
sufficient to keep the module glass clean. If dirt build-up
becomes excessive, clean the glass with a soft cloth
using mild detergent and water. Modules that are
mounted, flat (O Û WLOW DQJOH VKRXOG EH FOHDQHG PRUH
often, as they will not "self clean" as effectively as
modules mounted at a 15 Û WLOW RU JUHDWHU 2QFH D \HDU

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check the tightness of terminal screws and the general
condition of the wiring.
Also, check to be sure that mounting hardware is tight.
Loose bolts could result in a damaged module or array.
12. WARNINGS
Solar modules are live electrical power sources when
ex- posed to light. Arrays of many modules can cause
lethal shock and burn hazards. Solar modules should be
covered with an opaque material during installation to
avoid shocks or burns. Do not touch live terminals with
bare hands. Use insulated tools for electrical
connections.
PERMIT
- Before installing your solar system, contact local
authorities to determine the necessary permit,
installation and inspection requirements.
INSTALLATION AND OPERATION
• Systems should be installed by qualified
personnel only. The system involves electricity,
and can be dangerous if the personnel are not
familiar with the appropriate safety procedures.
• Do not step on the module.
• Although KYOCERA modules are quite rugged,
the glass can be broken (and the module will no
longer work properly) if it is dropped or hit by
tools or other objects.
• Sunlight shall not be concentrated on the
module.
• The module frames is made of anodized
aluminum, and therefore corrosion can occur if
the module is subject to a salt water
environment with contact to a rack of an- other
type of metal.(Electrolytic Corrosion)
GROUNDING
• All module frames and mounting racks must be
properly grounded in accordance with the
appropriate electrical codes.
INSPECTION
• Follow the requirements of applicable National
and local electrical safety Codes.
BATTERY
• When solar modules are used to charge
batteries, the battery must be installed in a
manner which will protect the performance of the
system and the safety of its users. The battery
should be away from the main flow of people
and animal traffic. Select a battery site that is
protected from sunlight, rain, snow, debris, and
is well ventilated. Most batteries generate
hydrogen gas when charging, which is
explosive. Do not light matches or create sparks
near the battery bank. When a battery is
installed outdoors, it should be placed in an
insulated and ventilated battery case specifically
designed for the purpose.
NOTES The electrical characteristics are within ±10
percent of indicated values of lsc, Voc, and Pmax under
standard test conditions (irradiance of 1KW/m², AM 1.5
spectrum, and cell temperature of 25 Û&
Under conditions, a photovoltaic module is likely to pro-
duce more current and / or voltage than reported at
standard test conditions. Accordingly, the values of lsc
and Voc marked on this module should be multiplied by
a factor of 1.25 when determining component voltage
ratings, conductor ampacities, fuse sizes, and sizes of
regulators which are connected to the PV output. Refer
to Section 690-8 of the National Electrical Code for an
additional multiplying factor of 125 (80 per cent
derating), which may also be applicable.
Manufactured by: Kyocera Corporation
Made in Japan
Kyocera Solar, Inc.
7812 East Acoma Dr.
Scottsdale, AZ 85260
Phone: [phone]
480-948-8003
Fax: [phone]
Email: [e-mail]
Web site: www.kyocerasolar.com