Kyocera KD225GX-LPB User manual

INSTALLATION MANUAL
FOR THE
OF
SOLAR PHOTOVOLTAIC POWER MODULES
Please read this manual carefully before installing the modules.
KYOCERA
6C-207086
1. INTRODUCTION
As the world leader in the development and application of
high technology ceramic silica materials, Kyocera offers a
wide range of highly efficient and reliable crystalline silicon
solar photovoltaic (PV) power modules. Kyocera began to
extensively research PV technology in 1975 and
commenced manufacturing operations in 1978. Since then,
Kyocera has supplied millions of cells and modules
throughout the world. With years of experience and
state-of-the-art technology, Kyocera provides the highest
quality PV power modules in a range of sizes designed to
meet the requirements of the most demanding energy and
power users worldwide.
2. APPLICATIONS
KDxxxGX-LPB modules are a reliable, virtually
maintenance-free direct current (DC) power source,
designed to operate at the highest level of efficiency.
KDxxxGX-LPB modules are ideal for remote home,
water pumping, utility-tied, telecommunications and
many other applications.
3. WARNINGS & SAFETY
PV modules generate electricity when exposed to light.
Arrays of many modules can cause lethal shock and
burn hazards. Only authorized and trained personnel
should have access to these modules. To reduce the risk
of electrical shock or burns, modules may be covered
with an opaque material during installation. Do not touch
live terminals with bare hands. Use insulated tools for
electrical connections. Do not use these modules for
solar concentration.
PERMIT
・ Before installing your PV system, contact local
authorities to determine the necessary permits,
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 odule.
・ Although
KDxxxGX-LPB modules are quite durable, the
glass can be broken (and the module will no longer work
properly) if it is dropped or hit by tools or other objects.
・ The module frame is made of anodized aluminum, and
therefore corrosion can occur if the module is subject to
a salt-water environment and is in contact with another
type of metal (electrolytic corrosion). If required, PVC or
stainless steel washers can be placed between PV
module frame and support structure to prevent this type
of corrosion.
・ KDxxxGX-LPB module frame(s) must be attached to a
support structure by one of the methods described in
Section 6, Installing
KDxxxGX-LPB modules.
・
Module support structures to be used to support
KDxxxGX-LPB module(s) should be wind rated and
approved by the appropriate local and civil codes prior
to installation.
・ Do not expose the back of the module to direct sunlight
・ In Canada installation shall be in accordance with CSA
C22.1, Safety Standard for Electrical Installations,
Canadian Electrical Code, Part 1.
FIRE RATING
・ In case of roof installation, PV module assembly shall be
mounted on a fire resistant roof covering rated for the
application.
KDxxxGX-LPB modules are comprised of a
glass front surface, polyethylene terephthalate (PET)
backsheet with a Class C fire rating.
GROUNDING
・ Refer to “Grounding” section.
4. SITE SELECTION
In most applications, KDxxxGX-LPB modules should be
installed in a location where they will receive maximum
sunlight throughout the year. In the Northern Hemisphere,
the modules should typically face south, and in the
Southern Hemisphere, the modules should typically face
north. Modules facing 30 degrees away from true South (or
North) will lose approximately 10 to 15 percent of their
power output. If the module faces 60 degrees away from
true South (or North), the power loss will be 20 to 30 percent.
When choosing a site, avoid trees, buildings or obstructions,
which could cast shadows on PV modules especially during
the winter season when the arc of the sun is lowest over the
horizon.
5. MODULE TILT ANGLE
KDxxxGX-LPB modules produce bigger power when they
are pointed directly at the sun. For grid tie installations
where the PV modules are attached to a permanent
structure, PV modules should be tilted at an angle equal to
the site's latitude. This will typically result in the highest
annual energy output.
6. INSTALLING KDxxxGX-LPB MODULES
To install the module, use bolt and nut on installation holes
which are opened in the module frame and install the
module by following the instruction below.
KD225GX-LPB～
～～
～KD235GX-LPB
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The minimum spacing of .6” (15 mm) is required between
PV module and the mounting surface around the perimeter
of PV module.
KDxxxGX-LPB modules may be installed in
various applications utilizing a variety of support structure
options and attachment methods. For optimal performance
in all applications, clearance between the module frame
and the mounting surface is required to allow cooler
ambient air to circulate around the back of the module and
to avoid the module and or wiring damage. A minimum
of .13” (3.2 mm) spacing must also be maintained between
module frames to allow for thermal expansion.
KDxxxGX-LPB modules may be attached to a support
structure by the following methods. When installing
modules in snowy area, an appropriate countermeasure
has to be taken to prevent possible damages to the lower
side frame by slipping snow (e.g. attach supporting parts to
the lowest modules.).Any damage caused by snow or such
countermeasure is not covered under warranty.
BOLTING: Utilizing 5 16” or 8 mm steel hardware structure
through the existing .35” (9 mm) diameter mounting holes in
the module frame and then through KDxxxGX-LPB
modules mounting holes on the support structure. Tighten
the screws with adequate torque (usually 132 in-lb).
Support structure should have enough strength to keep the
mounting span. Refer to the Module Drawings for the
position of PV module mounting holes.
7. MODULE WIRING
KDxxxGX-LPB modules come pre-wired with terminals
ready for most building attachments or free standing
installations. Each module has two #12 AWG type USE-2
PV-wire stranded sunlight resistant output cables each
terminated with Multi-Contact

locking connectors. The
positive (+) terminal has a male connector while the
negative (-) terminal has a female connector. The module
wiring is solely for series connections only, i.e. male (+) to
female (-) interconnections. Series and parallel connections
shall be made by use of two #10-14 AWG type USE-2
PV-wire stranded sunlight resistant output cables with male
and female Multi-Contact

locking connectors.
NOTE: When making connections with Multi-Contact
connectors, make sure the array is disabled. DO NOT
MAKE CONNECTIONS WHILE UNDER LOAD. Module
output connections are marked “Do not disconnect under
load”.
NOTE: MAXIMUM SYSTEM VOLTAGE 600 VDC.
KDxxxGX-LPB modules and most PV system components
have a maximum system voltage rating of 600 volts DC.
Some grid feed in systems operate at or near this voltage
rating. Like other polycrystalline solar modules, the open
circuit voltage of the
KDxxxGX-LPB modules increases as
the ambient temperature decreases. Maximum system
voltage is computed as the sum of the open-circuit voltage
of the series-connected PV modules for the lowest
expected ambient temperature. Refer to the National
Electrical Code Article 690-7(a) for determining the
maximum number of
KDxxxGX-LPB modules that can be
placed
in series. Temperature coefficients, specific to the
module of use, can be used to provide the most accurate
prediction of module voltage under temperature extremes.
NOTE: Install the maximum number of series connection for
the
KDxxxGX-LPB modules so that the system voltage is
less than 600 V.
NOTE: Do not connect the modules in parallel without
maximum over current protection.
NOTE: The minimum diameter that the cable can be bent
for the
KDxxxGX-LPB modules is 1.93” (49mm).
NOTE: In normal conditions, PV modules may produce
larger current and or voltage than reported in the standard
test conditions. Therefore, when voltage evaluations for
components, capacity of conductors, size of fuses, and size
of control systems connected to the module output are
determined, multiply the values of short- circuit current (Isc)
and open-circuit voltage (Voc) that are marked in
KDxxxGX-LPB modules by the coefficient, 1.25.
8. GROUNDING
Before installation, contact the local code authorities to
determine the necessary grounding requirements. When
installing in US market, attach all PV module frames to an
earth ground in accordance with the National Electrical
Code (NEC) Article 250. Proper grounding is achieved by
connecting PV module frames and all metallic structural
members contiguously to one another using a suitable
grounding conductor. The grounding conductor shall be of
copper, copper alloy or another material suitable for use as
an electrical conductor per NEC. The grounding conductor
must then make a connection to earth using a suitable earth
grounding electrode. Ensure positive electrical contact
through the anodizing on the module frame extrusion by
utilizing one of the following methods. Attach the grounding
conductor:
(1)to one of the .35” (9mm) diameter holes marked “ground”
using 5 16” stainless steel hardware. Wrap conductor
around bolt. Tighten the screws with adequate torque
(usually 132 in-lb). Avoid direct contact of copper ground
conductor to aluminum frame.
(2)to a ground lug (manufacturer:ILSCO,model:GBL-4DBT).
Tighten the screws with adequate torque (usually 62
in-lb). Use #10-32 stainless steel hardware to attach the
lug to the module frame by the torque of 40 in-lb. A
stainless steel star washer, positioned between the lug
and the anodized surface of the frame, must be employed
to break through the anodized layer of the frame
extrusion and electrically connect the ground lug to the
conducting aluminum frame material.
As a general rule, avoid direct contact of copper or copper
alloyed ground conductors with the aluminum module frame.
All ground bond securing hardware in contact with either the
aluminum module frame and or copper or copper alloy
ground conductors must be stainless steel.
Nut
Spring washer
Flat washer
Star washer
Ground lug
Bolt
Aluminum
frame
Nut
Spring washer
Flat washer
Star washer
Ground lug
Bolt
Aluminum
frame
Nut
Spring washer
Flat washer
Ground conductor
Cup washer
Star washer
Aluminum frame
Flat washer
Bolt
Nut
Spring washer
Flat washer
Ground conductor
Cup washer
Star washer
Aluminum frame
Flat washer
Bolt
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9. BLOCKING DIODES
In systems utilizing a battery, blocking diodes are typically
placed between the battery and PV module output to
prevent battery from discharging at night.
KDxxxGX-LPB
modules are made of polycrystalline cells with high
electrical “back flow” resistance to nighttime battery
discharging. As a result,
KDxxxGX-LPB modules do not
contain a blocking diode when shipped from the factory.
Most PV charge regulators and inverters incorporate
nighttime disconnect feature.
10. BYPASS DIODES
Partial shading of an individual module in a source circuit
string (i.e. two or more modules connected in series) can
cause a reverse voltage across the shaded cells within the
module. Module output current is then forced through the
shaded area by the remaining illuminated cells and other
PV modules in series with the partially shaded module(s).
The current forced through the shaded cells within PV
module (or modules) causes additional module heating and
severe loss of power. All
KDxxxGX-LPB modules are
supplied with factory installed (non user serviceable)
bypass diodes.
The purpose of bypass diodes is to provide a low-resistance
current path around the shaded cells, thereby minimizing
PV module heating and array current losses.
PV modules employ bypass diodes that have:
・ Rated Average Forward Current [I
F(AV)
] Above
maximum system current at highest PV module
operating temperature.
・ Rated Repetitive Peak Reverse Voltage [V
RRM
] Above
maximum system voltage at lowest PV module
operating temperature.
11. MAINTENANCE
KDxxxGX-LPB modules are designed for long life and
require very little maintenance. Under most weather
conditions, normal rainfall is sufficient to keep the module
glass surface clean. If dirt build-up becomes excessive,
clean the glass surface only with a soft cloth using mild
detergent and water. USE CAUTION WHEN CLEANING
THE BACK SURFACE OF PV MODULE TO AVOID
PENETRATING BACK SHEET. PV modules that are
mounted flat (0°tilt angle) should be cleaned more often,
as they will not "self clean" as effectively as modules
mounted at a 15°tilt or greater. Once a year, check the
general condition of the wiring and check to be sure that
mounting hardware is tight. Loose connections may result
in a damaged module or array.
K
KK
KYOCERA Solar Group Sales Office
YOCERA Solar Group Sales OfficeYOCERA Solar Group Sales Office
YOCERA Solar Group Sales Office
 KYOCERA Corporation
Corporate Solar Energy Group
6 Takeda Tobadono-cho Fushimi-ku, Kyoto 612-8501, Japan
Phone: [phone]
Fax: [phone]
http: www.kyocera.com
 KYOCERA Solar, Inc.
7812 East Acoma Drive, Scottsdale, AZ 85260, U.S.A.
Phone: [phone] or 1-800-223-9580
Fax: [phone]
http: www.kyocerasolar.com
 KYOCERA Solar Pty Ltd.
Level 3, 6-10 Talavera Road, North Ryde NSW 2113, Australia
Phone: [phone]
Fax: [phone]
http: www.kyocerasolar.com.au
 KYOCERA Solar do Brasil Ltda.
Av. Guignard 661, Loja A
Recreio dos Bandeirantes-Rio de Janeiro, 22790-200 ,Brazil
Phone: [phone]
Fax: [phone]
http: www.kyocerasolar.com.br
 KYOCERA Fineceramics GmbH
Fritz-Mueller-Strasse 27, 73730 Esslingen, Germany
Phone: [phone]
Fax: [phone]
http: www.kyocerasolar.de
 KYOCERA Asia Pacific Pte. Ltd.
298 Tiong Bahru Road, #13-03 05 Central Plaza, 168730
Singapore 168730
Phone: [phone]
Fax: [phone]
http: www.kyocera.com.sg
 KYOCERA Asia Pacific Ltd.
Room 801-802, Tower 1, South Seas Centre,
75 Mody Road, Tsimshatsui East, Kowloon, Hong Kong
Phone: [phone]
Fax: [phone]
 KYOCERA Asia Pacific Pte. Ltd. Taipei Branch
10 Fl., No.66, Nanking West Road, Taipei, Taiwan
Phone: [phone]
Fax: [phone]
 KYOCERA (Tianjin) Sales ＆ Trading Corporation
Room 2107, Ruoy Chai Building,
No.8 Yong An Dong Li, Jian Guo Men Wai Road,
Chao Yang District, Beijing, 100022, China
Phone: [phone]
Fax: [phone]
http: www.kyocera.com.cn
 KYOCERA Korea Co., Ltd.
Diplomatic Center Room #406, 1376-1,
Seocho-2Dong, Seocho-Ku, Seoul, 137-072, Korea
Phone: [phone]
Fax: [phone]
http: www.kyocera.co.kr
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12. SPECIFICATIONS
・Under certain conditions, a photovoltaic module may produce more voltage and current than reported at Standard Test
Conditions (STC). Refer to Section 690 of the National Electrical Code for guidance in series string sizing and choosing
overcurrent protection.
Kyocera KD Series Module Specification
Electrical Characteristics: @ STC
Module Ty e
KD225GX-LPB KD230GX-LPB KD235GX-LPB
Pmax 225W +5 -3% 230W +5 -3% 235W +5 -3%
Voc 36.9V 36.9V 36.9V
Isc 8.18A 8.36A 8.55A
Vpm 29.8V 29.8V 29.8V
Ipm 7.55A 7.72A 7.89A
Factory installed Bypass Diode
(QTY) YES(3pcs)
Series Fuse Rating (A)
15 15 15
Ther al Characteristics: Te p. Coefficient
Voc
(V °C)
-1.33×10
-
1
-1.33×10
-
1
-1.33×10
-
1
I sc
(A °C)
4.91×10
-
3
5.02×10
-
3
5.13×10
-
3
Vpm
(V ℃)
-1.53×10
-
1
-1.53×10
-
1
-1.54×10
-
1
Physical Characteristics:
Module Type KD225GX-LPB KD230GX-LPB KD235GX-LPB
Length 65.4”(1662mm)
Width 39.0” (990mm)
Depth 1.8” (46mm)
Weight 46.3 lb (21.0 kg)
Mounting Hole Diameter .35”(9mm) Quantity 4pcs
Grounding Hole Diameter .35”(9mm) Quantity 4pcs
Application Class Class A
NOTE
NOTENOTE
NOTES
SS
S
(1) Standard Test Conditions of irradiance of 1000 W m2, spectrum of 1.5 air mass, and cell temperature of 25 deg C.
(2) See module drawing for mounting and grounding holes locations.
(3) Tolerance of Voc and Isc is + -10%.
A
39.0"
MODULE TYPE: KD225GX-LPB, KD230GX-LPB, KD235GX-LPB
38.0"
43.3" 65.4"
0.49"
11.1"
WIRE
LENGTH
32.7"
B
B
A
LENGTH
40.6"
WIRE
MODULE DIMENSIONS
1.81" 1.81"
0.41"
GROUND HOLE
MOUNTING HOLE (φ0.35")
MARKED
SECTION B-B
1.18"
0.47"
0.47"
SECTION A-A
0.79"
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