Jolywood JW-D60N User manual

INSTALLATION
MANUAL
Jolywood N-type Mono-crystalline Double Glass Module
All rights reserved © Jolywood (Taizhou) Solar Technology Co., Ltd

1.0
1.1
1.2
2.0
2.1
2.2
2.3
3.0
3.1
3.2
3.3
3.4
4.0
4.1
4.2
5.0
5.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
6.0
6.1
6.2
6.3
6.3.1
6.3.2
6.3.3
7.0
03
03
03
03
03
03
04
04
05
06
06
06
07
07
07
08
08
09
09
09
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15
16
17
17
18
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19
Introduction for User Manual
Disclaimer
Limitation of Liability
Safety Precautions
Warning
General Safety
Handling Safety
Unload Transportation and Storage
Marks on Outer Packaging
Unloading Warning
Secondary Transportation and Precautions
Storge
Unpacking Instruction
Unpacking Safety
Unpacking Steps
Installation
Installation Safety
Installation Method
Mechanical Installation and Precautions
Grounding
Electrical installation
Maintenance for PV Modules
Module Visual Inspection and Replacement
Connector and Cable Inspection
Cleaning
Water quality requirements
Component Inspection after Cleaning
Troubleshooting
Technical Issues or Claims
Framed Bifacial Single-Glass modules（Fixture installation）
Framed Bifacial Single-Glass modules（Conventional bolt mounting）
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Contents
2
Revision Date 2020/3/16
Version: JW-Install-D-2020-V1
Jolywood (Taizhou) Solar Technology Co.,Ltd.
Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

3
1.0
Introduction for User Manual 1.1
Disclaimer
1.2
Limitation of Liability
2 Safety precautions
2.1
Warning
2.2 General Safety
2.2.1
Jolywood (Taizhou) Solar Technology Co.,Ltd.
Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
The Manual applies to the installation,
maintenance and use of the PV modules of
Jolywood Solar Technology Co., Ltd. (hereinafter
abbreviated as“modules”).Now includes
standard components JW-D60N,JW-D72N,
JW-HD120N/P,JW-HD144N/P,JW-HD156N, if
standard components are added later, they will
be updated in time. Jolywood Solar Technology
Co., Ltd. referred to as "Jolywood ". Failure to
follow these safety instructions can result in
personal injury or property damage.
All installation work must comply with the
local codes and the relevant international electrical
standards. The operation of a photovoltaic system
requires relevant expertise and must be
systematically installed and maintained by
Read and understand all safety rules before
installing, wiring, operating or maintaining modules.
Direct current is generated when the battery
surface of the module is exposed to direct sunlight
or other light sources, and direct contact with
the live parts of the module, such as terminals,
may result in death of personnel whether connected
to the module or not .
Jolywood is not responsible for any form of
damage, including but not limited to module
operation and system installation error, and
personnel injury, hurt, and property loss resulted
from failure to follow the instructions in this Manual.
Jolywood reserves the right to change this
installation manual without prior notice. Jolywood
does not guarantee any express or implied
information contained in this manual. Failure of
the customer to follow the requirements outlined
in this Manual during the installation of the module
will result in the invalidity of product's limited
warranty.
Jolywood’smodules have passed the tests
of the global testing and certification bodies,
so please feel free to use in compliance with the
requirements of the Installation Manual.
The solar installers must inform the end
customer (or consumer) of the above.
Please keep the Manual in good place for
further reference, (maintenance and service) or
present it when selling or processing the modules.
Please read the “Safety and Installation
Instructions” carefully before using and operating
the modules. If you have any problems, please
contact our customer service department or our
local representative for more detailed information.
The installer must follow all safety precautions,
requirements of local authorities and legal
provisions or requirements of the authorized
agencies as described in the Manual. Before
installing the solar photovoltaic system, installers
shall be familiar with their mechanical and
electrical requirements. The operation of a
photovoltaic system requires relevant expertise
and must be systematically installed and maintained
by qualified personnel with specialized knowledge.
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

2.3 Handling Safety
2.3.1
3.0
Unload Transportation and Storage
2.2.2
2.3.2
2.3.3
2.3.4
2.2.3
2.2.4
2.2.5
4
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Preventive measures and general safety rules:
The modules should be stored in the original
box before installation. Please protect the package
from damage. Transport the modules and unpack
the modules according to the recommended
shipping method and unpacking procedure.
Avoid damaging modules, scratching or striking
the modules. Do not apply pressure directly on the
unit during transportation. Improper transportation
or installation may damage the modules, which
excluded from the warranty. Do not stand, climb,
walk or jump on unpacked pallets of modules.
Direct climbing, trampling, standing, walking
or jumping on packaging or modules is prohibited”
Only work in a dry environment with dry tools.
Do not work in a humid environment without
wearing any protective measures. Do not touch
the terminal box or the ends of the output cables
(connectors) with bare hands under sunlight,
regardless of whether the PV module is connected
or disconnected from the system. Do not climb,
step on, stand, walk or jump directly on the
package or modules.
Do not use water to extinguish fires of an
electrical origin.
Do not install or operate modules during
wet or windy weather.
Avoid damaging modules, scratching or
striking the modules. Do not use paint or adhesive
on the front and back of the module. Avoid
scratching or cutting cables or exposing the
connectors to sunlight for a long time to maintain
the good insulation of module. Do not drop the
module or let anything fall down onto the unit.
Do not place any heavy objects or sharp objects
on the modules.
According to the National Electrical Code,
the maximum system voltage shall not exceed 1500V.
Do not connect the positive polarity of any
single PV module with that of the cable. Do not
connect the positive polarity of any single
photovoltaic module with that of the cable.
Make sure that the insulation gaskets of the joints
are closed tightened without any gaps in case
of the risk of fire and/or electric shock.
Do not use modules with broken glass.
Damaged modules must not repaired as any
contact with the modules may result in electric
shock. Do not disassemble modules or any
parts of the modules. Do not artificially collect
sunlight onto solar modules.
qualified personnel with specialized knowledge.
Personnel without authorization and related
training should not touch the photovoltaic modules
and access the installation area or module storage
area.
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

3.1.1 Prohibit modules from discarded at random,
need special recycling
3.1.2 Prohibit modules from rain or
3.1.3 Modules in carton are fragile items,
which shall handle with care
3.1.4 The package should be vertically up
when transported
3.1.5 Do not step on or stand above the
package and modules
3.1.6 Do not stack the modules on the outer
packaging. The highest number of
3.1
Marks on Outer Packaging
2
5
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
When unpacking, it must be operated by
two or more people at the same time. Do not lift
the module by grasping the module terminal box
or lead wires. Use both hands to carry the module
and do not stack the modules. Do not place
modules in an environment without reliable support
or unfixed. Do not place any heavy objects or
sharp objects on the modules.
Only work in a dry environment, ensuring
that all modules and electrical contacts are clean
and dry prior to installation. If it is necessary to
store the unmounted modules outdoors for a
certain period time, always cover the modules
and ensure that the glass is facing down on the
soft surface to prevent water from entering inside
the module and connectors damaged.
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

3.2 Unloading Warning
3.2.1
3.4 Storge
3.4.1
3.3 Secondary Transportation
and Precautions
3.3.1
3.2.2
When the module is temporarily stored
in the project, place the module in a dry and
ventilated place. Do not stack modules at
the project site. Cover the modules with a
tarpaulin and use a curtain or mesh belt to
reinforce the tarpaulin to protect the modules
from moisture and rain.
3.3.2
3.4.2
3.4.3
6
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Project warehouse storage (Humidity <70%;
Temperature: -20℃ ~+50℃): 60 pieces of
double glass modules, 72 pieces of double glass
modules and 78 pieces of double glass modules
static stacking stack 2 tray. Normal warehouse
storage (humidity <70%; tem-perature: -20℃ ~
+50℃): 60 pieces of double glass m-odules,
72 pieces of double glass modules and 78 pieces
It is forbidden to let the modules rain or get
wet. If it is necessary to store the unmounted
modules outdoors for a certain period time,
always cover the modules and ensure that the
glass is facing down on the soft surface to prevent
water from entering inside the module and
connectors being damaged.
It is forbidden to let the modules rain or get
wet. If it is necessary to store the unmounted
modules outdoors for a certain period time, always
cover the modules and ensure that the glass is
facing down on the soft surface to prevent water
from entering inside the module and connectors
being damaged.
packaging when the project checked at the
site. One layer stacking for transport only allowed
at project site. During transport, secure the box
to the transport platform to ensure that the package
does not roll over. Do not use tricycle transport
modules. Do not handle the module with rope.
Singleback modules are prohibited, and it is
prohibited to carry or drag components through
the wires or junction boxes of the modules.
It is not to allow remove the original
If the module requires two longdistance
transportation or longterm storage, it forbidden
to remove the original packaging. The finished
product packageed in the package can be
transported by land, sea or air. During transportation,
secure the box to the transport platform to ensure
that the package does not roll over. Take land
transportation as an example. When transporting
a normal truck, stack up to two layers. It forbidden
to cut the strap.
When unloading the modules from the
transport vehicle, use a reasonable lifting fixture
to allow up to two brackets per sling. Before lifting,
make sure that the trays and cartons damaged,
skewed, and that the hoisting ropes are durable.
When the hoisting is on the ground, the two men
put the carton gently on the project in a relatively
flat position. Using a forklift to remove the
components from the truck, and the unloaded
modules placed on a level surface.
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

4.0 Unpacking instruction
4.1 Unpacking safety
4.1.1
4.1.2
The work floor needs to ensure that
the package can be placed horizontally
and stably. Use a supportive removal tool
when disassembling the carton to prevent
the modules from falling down.
4.1.5
Each module needs to be lifted by 2
people. Do not lift the module by grasping
the module terminal box or lead wires.
Use both hands to carry the module and
do not stack the modules.
4.1.6
The unpacked modules must completely
be assembled and prohibited from being
stacked at the project site.
4.2.3
When removing the modules from the
box, two people must stand on either side
of the box while lifting the assembly, one
hand grasping the corner of the assembly,
and the other hand grasping the short side
while removing the assembly. If unpacking
on a horizontal floor, remove the modules
4.2.2
When unpacking, cut all vertical packing
belts with a blade or scissors, first cut the
long side packing belt, then cut the short
side packing belt; remove the upper cover
of the carton and take out two or three upper
lifting brackets.
4.2 Unpacking steps
4.2.1
Before unpacking, please check the
product name and serial number on the A4
paper of the outer box, and prohibit the
custom unpacking method.
4.1.4
The outer package can query the
modules information, please read it
carefully before unpacking.
4.1.3
Wear protective gloves during
unpacking to avoid injury and fingerprints
on the glass surface.
7
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
When unpacking outdoors, it is forbidden
to work under the conditions of rain. Because
the carton will become soft and open after the
rain, the photovoltaic modules inside will come
out and cause damage to the modules or bruises.
If there is wind on the site, special attention should
be paid to safety. Especially in the case of high
winds, it is recommended not to carry the modules
and properly fix the modules that have been
unpacked.
of double glass modules can be stacked up to
2 layers.
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

5.1.6
Do not damage the back glass of the
assembly while bolting the assembly to the
bracket during assembly. If you need to replace
5.1.3
When installing modules, only work in a
dry environment with dry tools. Do not work
in a humid environment without wearing any
protective measures. Do not install modules
under any rainy, snowy or windy conditions.
Keep the connectors dry and clean when
installing modules to avoid the risk of electric
shock. If the terminal of the module is wet,
no work can be done to avoid electric shock.
Please install it immediately after unpacking.
5.1.4
Do not wear metal rings, wristwatches,
earrings, nose rings, lip rings, or other metal
materials when installing or repairing PV systems.
5.1.5
Use on-transparent material to completely
cover the module during installation to prevent
power loss. Do not open the electrical
connection or pull out the connector while the
circuit is under load. Do not touch the modules
during installation unless necessary. Glazed
surfaces and brackets may generate high
temperatures, which might impose the risk
or hazards of burns and electric shock.
5.1.2
Do not remove the module packaging
and leave the modules in the carton before
installation.
5.1 Installation Safety
5.1.1
The solar modules of Jolywood can
install horizontally or vertically, but the lateral
installation can minimize the influence of dust
on the shading of the modules.
5.0
Installation
Double Glass Series modules product
by Jolywood can used for more than 30 years
according to the following conditions.
Photovoltaic modules with expired life shall
be reasonably disposed in accordance with
local laws and regulations. In addition to the
required IEC certification, the product has
tested to verify its resistance to ammonia
that may be present near the cowshed and
whether it is suitable for installation in wet
(coastal) areas and areas where sandstorms
occur frequently.
4.2.4
Modules removed from the box are
prohibited from leaning against the mounting
post and placed in an environment without
reliable support or unfixed.
from the side of the package to the other
side, and then carry them. If unpacking on
a nonhorizontal floor, use a supportive
removal tool when removing the carton to
prevent the module from falling down.
8
Jolywood (Taizhou) Solar Technology Co.,Ltd.
Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

Fixture installation method：
①frame ②clip ③ M8 bolt ④mounting rail
5.2.2
Frameless Bifacial Single-Glass
modules（Fixture installation）
5.1.8
After the modules are installed, the
cables should be fixed or tied so that they
are not exposed to direct sunlight after
installation and can prevent the cable from
aging. Low-hanging cables can cause
various problems, such as electric leakage
and fire in the water.
5.1.9
The application level of Jolywood is
Class A. Different color modules avoid from
installing in the same array or roof.
5.2 Installation method
5.2.1
Mechanical installation and precautions
The connection of the module to the
bracket system can be mounted using
clamps or bezels. Installation modules must
be carried out according to the following
examples and recommendations. If the
installation method is different from Jolywood,
please consult Jolywood’s local technical
support or after-sales, and obtain the
consent of Jolywood, otherwise the
components will damaged and the warranty
will be invalid.
The mechanical load of the Jolywoo
d (including snow and wind loads) depends
on the way the Jolywood are installed. The
mechanical load should be calculated by
the professional system designer based on
the actual conditions and environmental
conditions. Moreover, it does not withstand
the excessive force generated by the thermal
expansion of the support structure.
The drain hole should not be blocked u
nder any circumstances during installation
or use.
5.1.7
When installing components, do not
work alone, and keep working with teams
of two or more people.
components, do not damage thesurrounding
components or mounting structure.
Middle Clamp& Edge Clamp:
9
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

Four-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=350±20mm
Load Pressure：front≤5400pa back≤2400pa
JW-D60N
JW-D60N
Four-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=350±20mm
Load Pressure：front≤2400pa back≤2400pa
JW-HD120N/P
JW-HD120N/P
Four-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=350±20mm
Load Pressure：front≤2400pa back≤2400pa
Four-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=350±20mm
Load Pressure：front≤5400pa back≤2400pa
10
Jolywood (Taizhou) Solar Technology Co.,Ltd.
Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

JW-D72N
Four-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=350±20mm
Load Pressure：front≤2400pa back≤2400pa
Four-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm
Load Pressure：front≤2400pa back≤2400pa
Four-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=350±20mm
Load Pressure：front≤5400pa back≤2400pa
11
Jolywood (Taizhou) Solar Technology Co.,Ltd.
Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
JW-HD144N/P
Four-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm
Load Pressure：front≤2400pa back≤2400pa
JW-HD144N/P
Six-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm B is 100mm from the center
Load Pressure：front≤5400pa back≤2400pa
JW-D72N
Six-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm B=1008(intermediate)
Load Pressure：front≤5400pa back≤2400pa
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

12
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
Note: The above standard installation is used
in the jolywood standard Clamp. For details, please
refer to the jolywood standard clamp drawing.
a) The modules should be bolted to the support
structure using the mounting holes on the back of the
frame.
b) Each modules needs to be fastened by at
least 4 points on two opposite sides.
c) M8 X 1.25 (5/16”) bolts and nuts should be
used. The yield strength of bolts and nuts should not
be less than 450 MPa, and the recommended torque
is 16-20 Newton meters.
d) All parts in contact with the frame shall be
made of stainless steel flat washers with a diameter
of 16 mm and a minimum thickness of 1.6mm
5.2.3
Framed Bifacial Single-Glass modules
（Conventional bolt mounting）
Bolt:
①M8 bolt ②washer ③ nut ④mounting rail
Four-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm
Load Pressure：front≤2400pa back≤2400pa
Six-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm B is 100mm from the center
Load Pressure：front≤5400pa back≤2400pa
JW-HD156N
Six-point long-side installation
C-shaped steel parallel long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm B=1090(intermediate)
Load Pressure：front≤2400pa back≤2400pa
JW-HD156N
Six-point long-side installation
C-shaped steel vertical long side
Clamp is 30mm high and 40-50mm wide
A=450±20mm B is 100mm from the center
Load Pressure：front≤5400pa back≤2400pa
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

13
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[phone]
Bolt mounting method：
JW-D60N
JW-D60N
Long frame with inner four holes (990mm) for bolt
mounting
C-shaped steel parallel long side
Load Pressure：front≤2400pa back≤2400pa
The inner side of the long frame is bolted with four
holes (990mm)
C-shaped steel vertical long side
Load Pressure：front≤5400pa back≤2400pa
JW-HD120N/P
JW-HD120N/P
Long frame with inner four holes (990mm) for
bolt mounting
C-shaped steel parallel long side
Load Pressure：front≤2400pa back≤2400pa
The inner side of the long frame is bolted with four
holes (990mm)
C-shaped steel vertical long side
Load Pressure：front≤5400pa back≤2400pa
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

14
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
JW-D72N
JW-D72N
Long frame using inner four holes (1300mm) and
central four holes (400mm) for bolt installation
C-shaped steel parallel long side
Load Pressure：front≤2400pa back≤2400pa
The inner side of the long frame is bolted with four
holes (1300mm) and the middle side is boltless
C-shaped steel vertical long side
Load Pressure：front≤5400pa back≤2400pa
JW-HD144N/P
JW-HD144N/P
Long frame using inner four holes (1300mm)
and central four holes (400mm) for bolt installation
C-shaped steel parallel long side
Load Pressure：front≤2400pa
back≤2400pa
The inner side of the long frame is bolted with four
holes (1300mm) ,B is 100mm from the center,
C-shaped steel without bolts is installed perpendicular
to the long side
C-shaped steel vertical long side
Load Pressure：front≤5400pa back≤2400pa
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

15
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Kaiyang Rd., Jiangyan EconomicDevelopment zone, Taizhou City, Jiangsu Province, P. R. Chinawww.jolywood.cn[email protected]
[phone]
5.2.4.2
Jolywood’s frame assembly can be
grounded to the metal frame of the component
using a grounding device listed by a third
party. The equipment must be installed in
accordance with the instructions given by
the grounded equipment manufacturer.
5.2.4.3
Please visit http://www.jolywood.cn/ to
view the “Product Catalog” link for detailed
grounding holes locations and dimensions.
5.2.4.4
The electrical contact is formed by
penetrating the anodized coating of the
aluminum frame and tightening the ground
5.2.4.1
All component frames and mounting
brackets must be properly grounded in
accordance with the appropriate National
Electrical Code. Proper grounding is achieved
by continuously connecting the component
frame and all metal structural members
together using a suitable grounding conductor.
The grounding conductor or grounding wire
can be copper, copper alloy or other material
used as an electrical conductor in accordance
with the requirements of the corresponding
National Electrical Code. The ground conductor
must be connected to the ground through
a suitable grounding electrode.
5.2.4
Grounding
JW-HD156N
JW-HD156N
Long frame using inner four holes (1300mm)
and central four holes (400mm) for bolt installation
C-shaped steel parallel long side
Load Pressure：front≤2400pa
back≤2400pa
The inner side of the long frame is bolted with four
holes (1300mm) ,B is 100mm from the center,
C-shaped steel without bolts is installed perpendicular
to the long side
C-shaped steel vertical long side
Load Pressure：front≤5400pa back≤2400pa
Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module

Place the toothed washers, washers,
and grounding wires in turn, and screw the
screws into the grounding holes to connect
the two adjacent components.
screw (together with the star washer) to the
appropriate torque of 25 lbf.in. A properly
sized ground wire (solid bare copper wire
according to American Wire Gauge 6 to 12)
should be selected and mounted under the
connecting bolt.
Wiring
In order to ensure the normal operation
of the system, when connecting components
or connecting loads (such as inverters,
batteries, etc.), observe that the polarity
of the cables is properly connected (Figure
1 and Figure 2). If the modules are not
connected properly, the bypass diode may
be damaged. Modules can be wired in
series to increase voltage. Connect the
modules in series by inserting the positive
terminal of one module into the negative
terminal of the next module. Figure 1 shows
the serial connection of the components.
Modules can be connected in parallel to
increase current (shown in Figure 2). Parallel
connection is to connect the wiring from the
positive terminal of one component to the
5.2.5
Electrical Installation
All wiring should be performed by
qualified and trained personnel in accordance
with local regulations and procedures. The
modules can be connected in series to
increase the operating voltage by inserting
the positive plug of one component into the
negative socket of the next component.
Always ensure that the contact points are
corrosion-resistant, clean, and dry before
wiring modules. If the polarities of the modules
are connected wrong, they may cause
irreparable damage. Before connecting in
parallel, be sure to check the voltage and
polarity of each module array. If you want
to measure the reverse polarity or different
values exceeding 10V between the test module
systems, be sure to check the configuration
of module array before wiring.
All cables and connectors used to
connect the DC system must have similar
(or higher) parameters. It suggested that all
cables should run in proper cable ducts and
should be located away from the water-prone
area.
Each component has two standard 90℃
blackout output cables with a plug-and-
play connector on each terminal. Jolywood’s
modules are equipped with a DC copper
cable with a cross-sectional area of four
mm2, rated voltage 1500V DC, insulation
resistance up to 90°C and UV-resistant,
and all cables used to connect the DC system
must have similar or better parameters. We
require all wiring and electrical connections
to comply with the appropriate National
Electrical Code.
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Figure 1
Series connection
Parallel connection
Figure 2
Parallel connection after series connection
6.1.1
Maintenance should be carried out at
least once a year by trained personnel; at
maximum operating voltage not less than
1500V DC, maintenance personnel should
always wear rubber gloves and wear insulated
boots during work, removing all possible
shielding of the solar array and affecting the
The components in the PV array should
regularly be inspected for damage. If damage
is found, the same type of components must
be replaced, such as broken glass, broken
cables, damaged junction box, etc., resulting
in functional and safety failure of the
components.
Well-designed solar systems require
minimal maintenance, but some simple steps
can be taken to improve system performance
and reliability.
5.2.5.1
Fuse
When installing the fuse, connect its
rated maximum DC voltage to each non-
grounded pole of the array (in other words,
if the system is not grounded, connect the
fuse to the positive and negative terminals).
a) The maximum rating of the fuses
connected in series with the array is typically
20A, but the actual component-specific
ratings are available on the product label
and product data sheet.
b) The fuse rating also corresponds to
the maximum reverse current value that the
component can withstand (when an array is
shielded, the array is loaded into other parallel
component arrays to generate current), thus
affecting the number of parallel connected
arrays.
c) It forbidden to connect two or more
strings in parallel and then connect the fuses.
positive terminal of the next component.
The number of components connected in
series and parallel needs to be reasonably
designed according to the system
configuration. All instructions above must
followed to meet the Jolywood’s Warranty
conditions.
6.0 Maintenance for PV Modules
6.1 Module Visual Inspection and
Replacement
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6.1.2
Check if the installed hardware is securely
in place.
6.1.3
Check that all array fuses in each of the
non-grounded poles are working properly.
6.1.4
If the component is damaged (glass
breakage or scratches on the back glass),
it needs to be replaced. Components must
be replaced with the same type. Do not touch
the live parts of the cables and connectors
when replacing components. Use appropriate
safety guards (insulation tools, insulated g
loves, insulated boots, etc.) when handling
components.
6.2 Connector and Cable Inspection
6.2.1
Check all cables to verify that they are
securely connected；It recommended that
all cables operated in an appropriate pipeline
and that the location should kept away from
the easy catchment area.
6.2.2
Check the electrical, grounding, and
mechanical connections every 6 months to
ensure that they are clean, safe, free from
damage, and rust-free; ensure that the
mountings properly tightened; check all
cables to make sure they are tight.
6.3
Cleaning
The amount of electricity produced by
a solar module is proportional to the amount
of light that falls on it. A battery-blocked
component produces relatively little power,
so it is important to keep the components
clean.
a) The PV module should cleaned under
the irradiance of less than 200W/m2 to avoid
the difference between the water temperature
and the air temperature used in the cleaning
to avoid cracking; the hard water needs to
be softened, the components are cleaned,
and the glass surface remains. The water is
dried.
b) It is strictly forbidden to clean PV
modules under meteorological conditions
where the wind is greater four, heavy rain
or heavy snow.
c) When the pressure water is cleaned,
the water pressure on the surface of the
component glass shall not exceed 700 kPa
(14619.80 lb/ft2), and the component is not
allowed to withstand additional external force.
d) During the cleaning of PV modules,
it is strictly forbidden to step on the components,
splashing water to the back of the components
and cables, and ensure that the connectors
are clean and dry to prevent electric shock
6.1.6
Jolywood’s PV module junction box is equipped
with a bypass diode to minimize component heating
and current loss.
6.1.5
Cover the front surface of the assembly
with an opaque material. Components exposed
to the sun can be extremely dangerous to
generate high voltages.
power generation performance of the module
array.
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6.3.2.3
After the PV module cleaned, complete
the PV module cleaning record
6.3.3
Troubleshooting
If it does not work after installation,
please notify the installer immediately.
7.0
Technical Issues or Claims
If you have any questions about
technology or claims, please contact the
installer.
Please visit http://www.jolywood.cn/
to contact Jolywood’s after-sales service
team.
Please submit the Customer Feedback
Information Form at http://www.jolywood.cn/.
Our technical service representatives will
contact you within 5 working days. The
required username and password will be
sent via the Customer Service link.
Please download the specifications
or data sheets for the components at
http://www.jolywood.cn/.
6.3.1
Water quality requirements
PH: 5 ~7;
Chloride or salt content：0 - 3,000 mg/L
Turbidity：0-30 NTU
Conductivity：1500~3000 μs/cm
Total dissolved solids：≤1000 mg/L
Water hardness：0-40 mg/L
Non-alkaline water must be used, use demineralized
water when conditions are available.
6.3.2.2
6.3.2.1
Whether the component bracket is tilted
or bent after cleaning, whether the component
terminals are disconnected or not.
The overall appearance of the visual
component is clean, bright and free of stains;
the surface of the component sampled for
ash accumulation; there is no obvious scratch
on the surface of the component; no cracking
occurs on the surface of the component.
6.3.2 Component inspection after
cleaning
and fire hazard; steam cleaners are strictly
prohibited; soft parts should be used when
cleaning components. Cloth and mild detergent
and water, do not put the components directly
into the water. Take care to avoid serious
thermal shocks that could damage the
components.
e) The surface of the PV module has
difficult-to-clean substances such as oil.
Use a non-friction neutral liquid cleaner. Do
not use an organic solvent containing alkali
or acid to clean the components. Do not use
corrosive solvents or wipe the PV modules
with a hard object.
f) If you are not sure if you need to clear
the array or section, first select a column of
particularly dirty arrays to begin cleaning. If
the improvement percentage is less than 5%,
cleaning is usually not required. The above
verification should be carried out only with a
constant sunshine rate (sunny, strong sunshine,
no cloud).
g) Regularly trim the vegetation to
prevent its shadow cast from affecting the
power generation performance of the module
array.
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Installation Manual - Jolywood N-type Mono-crystalline Double Glass Module