MaxPower MPS N-R Series User manual

Installation Manual for PV Modules MPS---N-R
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1. Introduction to user manual
This manual contains information about the installation and safe operation of the OZ
POWER PRODUCTS PTY LTD Modules (here in after referred to as modules). It contains
standard modules MPSxxxN-R, if new standard modules are added, they will be updated. OZ
POWER PRODUCTS PTY LTD is called " MaxPower Solar " for short. Failure to comply with
these safety guidelines may result in loss of life or damage to property.
Name of solar cell
Name of solar cell module
Dimensions of module
(mm)
166 solar cell
MPSxxxN-R(xxx=350-390, in steps of 5)
Single glass full frame module
1756*1039*30/35/40
MPSxxxN-R(xxx=440-470, in steps of 5) Single
glass full frame module
2095*1039*30/35/40
182 solar cell
MPSxxxN-R(xxx=395-435, in steps of 5)
Single glass full frame module
1722*1134*30/35/40
MPSxxxN-R(xxx=525-580, in steps of 5)
Single glass full frame module
2278*1134*30/35/40
Installers must read and understand this guide before installing. If you have any
questions, please contact our customer service department or our local representative for
more detailed information. The installer must comply with all safety precautions, local
requirements and requirements of the law or authorized agency as described in this guide.
Before installing the PV module, the installer shall be familiar with its mechanical and
electrical requirements. The operation of PV modules requires relevant professional
knowledge, and system installation and maintenance must be carried out by qualified
personnel with professional knowledge.
Please store this guide in a safe place for future reference (maintenance and upkeep)
and use when selling or handling modules. MAXPOWER SOLAR has passed the test of
global testing and certification authority. Please use it at ease, under the premise of following
the requirements of this manual.
The module installer must inform the end customer (or consumer) accordingly of the
above.
1.1 Disclaimer
MAXPOWER SOLAR reserves the right to change this installation manual without prior
notice. MAXPOWER SOLAR makes no warranties of any kind with respect to any express or

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implied information contained herein. If the customer fails to comply with the requirements
listed in this manual during the installation of the module, the limited warranty provided to the
customer will be invalidated.
1.2 Scope of responsibility
MAXPOWER SOLAR shall not be liable for any form of injury or loss, including, but not
limited to, physical injury or property loss resulting from the operation of the modules, system
installation errors, or failure to comply with the instructions in this manual.
2 Safety measures
2.1 Warning
Read and understand all security details before installing, wiring, operating, or
maintaining modules. Photovoltaic modules generate electricity when exposed to a light
source, and a photovoltaic array of modules can pose a lethal shock or burn hazard,
personnel without authorization and relevant training should not touch pv modules and
terminals.
2.2 Universal security
The installer must comply with all safety precautions, local requirements and
requirements of the law or authorized agency as described in this guide. The operation of PV
system requires relevant professional knowledge, which must be installed and maintained by
qualified personnel with professional knowledge. Personnel without authorization and
relevant training shall not touch the PV modules and shall not approach the installation area
or the module storage area.
Do not use broken glass modules, broken modules shall not be repaired, contact with the
surface of modules may lead to electric shock hazard. Do Not Disassemble the assembly or
remove any part of the assembly. Do not concentrate sunlight artificially on these solar
modules.
Do not connect the positive terminal of a single PV module from the positive terminal of
the cable. Make sure that the polarity of each module or module string is not the opposite of
that of other modules or module strings. Please ensure that there are no gaps between the

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individual gaskets of the joint and that any gaps between the gaskets may cause fire and / or
electric shock risk.
According to the National Electrical Code, the maximum system voltage shall not exceed
1500V. Do not install or operate modules during wet or windy weather.
MAXPOWER SOLAR module electric shock protection Class II.
The installation elevation of XXX module assembly shall not be higher than 2000m.
2.3 Operational safety
To avoid damage to modules, please do not scratch and impact modules, please do not
use paint or adhesives on the front and back of the glass modules. Avoid scratching, cutting
cables and connectors, or exposing them to long-term sunlight, to prevent reduced insulation.
Do not drop modules or cause objects to fall on modules. Do not place any heavy or sharp
objects on the module.
Please do not use water to extinguish the fire while the power is still on. Only work in dry
environment, and only use dry tools. Do not work in a humid environment without wearing
any protective measures. In the sun, regardless of whether the PV module is connected to
the system, please do not touch the module's junction box, connectors, cables and other live
parts without any protection.
Do not climb, step, stand, walk or jump directly on the package or modules.
2.4 Fire safety
Please consult local laws and regulations before installing modules, which should comply
with the building fire protection requirements.
PV module has a fire rating of Class C.
When the modules are installed on the roof, the roof must be covered with a layer of fire-
proof material suitable for the corresponding fire rating. Adequate ventilation shall be ensured
between the module and the mounting surface.
Different roof structure and installation will affect the fire safety of the building. There
may be a fire if the module is not installed properly.
To ensure the fire rating of the module on the roof, the minimum distance between the
module and the roof surface is 10 cm.
Please use appropriate module parts such as fuse, circuit breaker, earth connector
according to local regulations.
Do not use modules if exposed flammable gas is present nearby.

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3 Unload, transport and store
Precautions and general safety rules:
modules should be stored in the original packing box before installation. Please protect
the packing from damage. Transport the module and open the module package according to
the recommended mode of transport and unpacking steps. In order to avoid damage to
modules, please do not scratch, impact modules. When transporting, do not apply direct
pressure to the module. Improper transportation or installation may damage the module and
invalidate the warranty. Do not step on or stand on the top of the package box and modules.
Only work in a dry environment. Make sure all modules and electrical contacts are clean
and dry before installation. Store uninstalled modules outdoors for a period of time, the
assembly shall be covered at all times with glass facing down and on a soft surface to
prevent water build-up within the assembly and damage to the connectors.
When unpacking shall be unpacked by two or more persons at the same time, do not
grab the assembly box or lead wire to lift the assembly, use both hands to move the
assembly, do not overlap the assembly, do not place the assembly in an environment without
reliable support or fixed; Do not place any heavy or sharp objects on the module.
3.1 Packing instructions
Do not allow modules to be
discarded at will and require
special recycling
Modules shall not be
exposed to rain or
moisture

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3.2 Points to note when unloading goods
When the Assembly is unloaded from the Transport Vehicle, a reasonable lifting fixture
shall be used to lift up to 2 supporting assemblies at a time. Before hoisting should confirm
whether the tray and the carton have the breakage, askew as well as hoisting the rope
whether strong, firm. Lifting fast landing, two people on the side of a side of the paper boxes
gently placed on the project is relatively flat position. Or use a forklift to remove the assembly
from the truck and place the unloaded assembly on the horizontal floor.
When the modules are temporarily stored in the project, the modules should be placed in
a ventilated and dry place. It is forbidden to stack the modules in the project site, and the
modules should be covered with a tarpaulin, and the tarpaulin should be reinforced with a
curtain or mesh belt to prevent the modules from getting wet and wet.
3.3 Secondary Transport and points to note
Do not remove the original packaging if the module requires secondary long-distance
transportation or long-term storage. The finished products of the package can be transported
by land, sea or air. During transportation, please fix the packing box on the transportation
platform to ensure that the packing will not roll over. For example, the normal truck transport,
stacking up to 2 layers, do not cut the packing tape.
The original packing is not allowed to be removed during shipment on site, only one
The modules in the carton are
fragile articles. Handling should be
handled with care
The packing should be
straight up in transit
No trampling on the packing box
and modules
Do not stack modules beyond
the maximum number of layers
of printed markings on the outer
packaging box 2

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layer is allowed during transportation. During transportation, please fix the packing box on the
transportation platform to ensure that the packing will not roll over. Do not use tricycles to
transport modules, do not use ropes to bind or carry modules, do not carry modules on one
person, do not move or drag modules through the wires or junction boxes of the modules.
3.4 Storage
Do not expose the assembly to rain or moisture. If the uninstalled assembly is to be
stored outdoors for a period of time, always cover the assembly and keep the glass face
down and on a soft surface to prevent water and connector damage inside the assembly.
Do not remove the original packaging of a module if it requires long-distance
transportation or long-term storage.
Storage (humidity < 70% ; temperature:-20 °C ~ + 50 °C) : 120 pieces of single-glass
module, 132 pieces of single -glass module and 144 pieces of single -glass module statically
stacked 2; storage in normal warehouse (humidity < 70% ; temperature:-20 °C ~ + 50 °C) :
120 pieces of module stacked up to 2 layers; 132-piece modules can be stacked up to 2
layers; 144-piece modules can be stacked up to 2 layers.
4 Instructions for unpacking
4.1 Safe unpacking
4.1.1 When unpacking in the open air, do not work in the rain. Because the box will become
soft after the rain, the PV modules inside will be out of the damage caused by modules or
injured people. If the site is windy, need to pay special attention to safety, especially in high
winds, it is recommended not to move the modules, and properly fixed the package has been
opened.
4.1.2 The working floor shall be such that the packing case can be placed horizontally and
stably. When removing the carton, use a supporting disassembly tool to prevent the modules
from side-tipping.
4.1.3 Please wear protective gloves during unpacking to avoid hand injury and fingerprints
on the glass surface.
4.1.3 The Outer Packaging can query the module information, please read it carefully
before unpacking.

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4.1.5 Do not grab the terminal box or lead wire to lift the assembly. Use both hands to move
the assembly. Do Not Place the assembly on top of each other.
4.1.6 The unpacked modules must be fully assembled and not allowed to be stacked at the
project site
4.2 Unpacking steps
Before unpacking, please check the product name and serial number on the A4 paper of
the outer box. Custom unpacking method is forbidden.
When unpacking, cut all vertical packing belts with a knife or scissors, first cut the long
side packing belt, then cut the short side packing belt; remove the top cover of the carton,
and take out two or three upper lifting brackets.
When taking modules out of the packing box, two people should stand on both sides of
the box and hold the modules simultaneously. One Hand should hold the corner of the
module, the other hand should hold the short side, and the modules should be taken out. If
the package is unpacked on the horizontal ground, the modules are taken out from one side
of the package to the other side in turn, and then two people carry them. If the packing is on
non-horizontal ground, use a supporting disassembly tool when disassembling the carton to
prevent the modules from tipping over.
modules removed from the packaging box shall not be allowed to lean against the
mounting post or be placed in an environment without reliable support or fixation.
5 Install
MAXPOWER SOLAR single-glass series modules can be installed and used for more
than 30 years according to the following conditions. After-life PV modules need to be
disposed of reasonably according to local laws and regulations. In addition to the required
IEC certification, MAXPOWER SOLAR products have been tested for their resistance to
ammonia gas that may be present near cattle sheds and for their suitability for installation in
humid (coastal) areas and sand and dust storm prone areas. Double Glass PV modules
passed at the IEC 60068-2-68, IEC 61701and IEC 62716 environmental conditions.
5.1 Installation security

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5.1.1. MAXPOWER SOLAR photovoltaic solar modules can be installed horizontally or
vertically, but the use of horizontal installation can be used to minimize the impact of
dust on the solar modules shading.
5.1.2. Do not remove the modules before installation. Leave the modules in the carton.
5.1.3. When installing modules, only work in a dry environment, and only dry tools can be
used. Do not work in a humid environment without wearing any protective measures.
Do not install assemblies in rain, snow or high winds. Please keep the connector dry
and clean when installing the module to avoid the risk of electric shock. If the terminal
of the module is damp, no work can be done to avoid electric shock. Please install
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. During Assembly and wiring, use opaque material to completely cover the
assembly to prevent power loss. Do not open the electrical connection or pull out the
connector when the circuit is loaded. Do not touch modules unnecessarily during
installation; glass surfaces and brackets may generate high temperatures; burn and
shock hazards may occur.
5.1.6. During Assembly, do not damage the rear glass of the Assembly while fastening it
to the bracket by bolts. If you need to replace a module, do not damage the
surrounding module or installation structure.
5.1.7. When installing modules, do not work alone, and always work as a team of two or
more people.
5.1.8. The cable should be fixed or tied up after assembly installation, so that it will not be
exposed to direct sunlight after installation, which can prevent cable aging. Low
hanging cables can cause problems such as electrical leakage and fire in stagnant
water.
5.1.9. The application level of MAXPOWER SOLAR module is class A, different color
series modules avoid installation in the same array or roof.
5.1.10. Selection of installation Angle

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Module Angle: the angle between the surface of the module and the horizontal plane.
When the module is facing sunlight, the module gains maximum power output. When
installed in the northern hemisphere, modules should face south. When installed in the
southern hemisphere, modules should face north. For detailed installation angles, follow the
standard module installation guide or advice from an experienced module installer.
MAXPOWER SOLAR recommends that the installation angle should be no less than
10 degrees when the module is installed, so that the surface dust of the module is easily
taken away by the rain when it rains, thereby reducing the number of module cleaning. At the
same time, it is conducive to the flow of the accumulated water on the surface of the module,
and avoids the long-term large amount of accumulated water leaving marks on the glass,
thereby affecting the appearance and performance of the module.
5.2 Installation
5.2.1 Mechanical installation and points for attention
Module and bracket system connections can be installed using fixtures, borders. If the
installation method is different from MAXPOWER SOLAR public notice, please consult
MAXPOWER SOLAR local technical support or after-sale, and get MAXPOWER SOLAR
consent, failure to do so will damage the module and result in a warranty failure. The
mechanical load (including snow and wind load) capability of the modules depends on the
way in which the modules are installed, and the mechanical load should be calculated by a
professional system designer in accordance with the actual situation and environmental
conditions. And will not bear the support structure thermal expansion generated by the
excessive force.
The design loads of MAXPOWER SOLAR modules are 1600Pa and 3600Pa, and the
safety factor is 1.5.
In the course of installation or use, the drainage hole can be not blocked under any
circumstances.
5.2.2 Full frame single -glazing module installation (JIG installation)
(Mid & Side Press Block) :

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Four-point long side mounted
C steel paralleled to the long side, side
press block 30/35/40 mm high, width 40-50
mm A=350±30mm
Maximum load: front ≤2400 pa, back ≤1600
pa
MPSxxxN-R(xxx=350-390)、MPSxxxN-R(xxx=395-435)
MPSxxxN-R(xxx=315-390)
Four-point long side mounted
C steel perpendicular to the long
side, side press block 30/35/40 mm
high, width 40-50 mm A=350±30mm
Maximum load: front ≤3600pa, back ≤
1600 pa
Six-point long side
installation
C section steel paralleled
to the long side, side
press block 30/35/40 mm
high, width 40-50 mm
A=440±30mm
Maximum load: front
≤2400 pa back ≤2000 pa
Six-point long side installation
C section steel perpendicular to
the long side, side press block
30/35/40 mm high, width 40-50
mm
A=440±30mm B is 200±30mm
from the center
Maximum load: front ≤5400 pa
back ≤2400 pa
1：Frame 2：Clip 3：M8 Bolt 4：mounting rail
MPSxxxN-R(xxx=440-470)
MPSxxxN-R(xxx=525-580)
MPSxxxN-R(xxx=315-390)

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5.2.3 Full frame double-sided double-glazing assembly mounting (conventional bolt
mounting)
(Bolt)：
The modules shall be mounted on the support structure using stainless steel bolts with
mounting holes on the back of the frame.
Each module needs to be secured by at least two pairs of four points on the sides.
Stainless steel bolts and nuts of M 8x 1.25(5 / 16) shall be used, the yield strength of the
bolts and nuts shall not be less than 450 Mpa, the Torque applied is recommended to be 16-
20 n/m.
All parts in contact with the frame shall have flat stainless steel washers of M8,16 mm
outside diameter and minimum thickness of 1.8 mm.
(Bolt installation)
①M8 screw ②washer ③nut ④mounting rail

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5.2.4 Grounding
5.2.4.1 All module frames and mounting brackets must be properly grounded in accordance
with the applicable National Electrical Code. Proper grounding is achieved by
The long frame uses the inner six holes
for bolt installation
Mounting rail/C-shaped steel
perpendicular to the long frame
Maximum load: front ≤5400Pa back ≤2000Pa
The long frame uses the inner six holes
for bolt installation
Mounting rail/C-shaped steel parallel to the
long frame
Maximum load: front ≤2400Pa back ≤2000Pa
MPSxxxN-R(xxx=350-390)
MPSxxxN-R(xxx=395-435)
The long frame uses the inner four holes for bolt
installation
Mounting rail/C-shaped steel parallel to the long
frame
Maximum load: front ≤2400Pa back ≤1600Pa
The long frame uses the inner four holes for
bolt installation
Mounting bracket/C-shaped steel perpendicular
to the long frame
Maximum load: front ≤3600Pa back ≤1600Pa
MPSxxxN-R(xxx=440-470)
MPSxxxN-R(xxx=525-580)

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continuously connecting the module border to all metal structural elements using
suitable ground conductors. A ground conductor or ground wire may be copper,
copper alloy, or other material used as an electrical conductor in accordance with the
corresponding national electrical code. The ground conductor must be connected to
the earth by a suitable ground electrode.
5.2.4.2 The frame module may be earthed to the metal border of the module using a
grounding device listed by a third party. The equipment shall be installed in accordance with
the specifications specified by the grounding equipment manufacturer.
5.2.4.3 Please visit the www.maxpowersolar.com.au for details of the grounding hole
location and size.
5.2.4.4 The electrical contact point is formed by passing through the anodized coating
of the aluminum frame and tightening the ground screw (together with the star Washer) to the
appropriate torque of the 25 lbf.In. The appropriate size of ground wire (solid bare copper
wire from USG 6 to 12) shall be selected and installed under the connecting bolt.
Put the toothed Washer, the gasket, the ground wire in turn, screw the screw into the
ground hole, and connect the two adjacent modules.
5.2.5 Electrical installation
All wiring shall be performed by professionally trained and qualified installers 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 module into the
negative socket of the next. Always ensure that contacts are free of corrosion, clean, and dry
before connecting modules. If one array is connected to another with opposite polarity,
irreparable damage to the product is caused. Be sure to check the voltage and polarity of
each column before proceeding in parallel. If the measurements show opposite polarity
between columns or a voltage difference greater than 10V, check the configuration before

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joining.
All other cables and connectors used to connect the DC system shall have similar (or
higher) specifications. CTO recommends that all cables be placed in proper piping and away
from water.
Each module has two standard 90 °C shading output cables and a plug and play
connector attached to each terminal. XXX module is equipped with 4mm cross-sectional area
DC stranded cable, rated voltage 1500V DC, insulation layer resistant to 90 °C, UV radiation,
all used to connect the DC system cable must have the above similar or better parameters.
We require that all wiring and electrical connections must comply with the requirements of the
National Electrical Code.
In the design of the modules, field connections are sealed with IP67 junction boxes,
which provide protection against environmental impact for the wires and their corresponding
connections, and protection against contact for uninsulated live parts. The junction box has a
connected cable and protection class IP67 connector. These designs facilitate the
concatenation of modules. Each module has two separate wires connected to the junction
box, one positive pole and one negative pole. The modules can be connected in series by
inserting the positive end of one module wire into the socket of the negative end of the
adjacent module wire.
The cables used to connect the modules on site must be able to meet the maximum
short-circuit current of the modules. The cables should be light-resistant cables dedicated to
photovoltaic systems.
The electrical performance parameters of modules, such as Isc nominal value and
standard test conditions, have ±5% error, Voc has ±4% error, Pmax has ±3% error. Under
standard test conditions, MAXPOWER SOLAR module power temperature coefficient is -
0.320%/℃, open circuit voltage temperature coefficient is -0.260%/℃, and short-circuit
current temperature coefficient is +0.046%/ ℃.Standard test conditions for modules:
irradiance 1000 W/m cell temperature 25℃, atmospheric mass AM1.5.
Under normal circumstances, the current and voltage values generated by the module
products may be higher than those obtained under standard test conditions. Therefore, in the
determination of photovoltaic power system accessories, such as rated voltage, wire capacity,
fuse capacity and module power output related parameters, should be the corresponding
short-circuit current and open circuit voltage to be applied 1.25 times.
The maximum number of modules that can be connected in series for each string must
be calculated according to the requirements of the relevant regulations. The value of the

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open circuit voltage at the local minimum temperature is not to exceed the maximum system
voltage specified by the module (according to the IEC61730 safety test, MAXPOWER
SOLAR double glass module maximum system voltage is DC1500V) and the value required
by other DC electrical modules.
The maximum number of serial components that can be connected in series is
recommended to be 28 blocks and 18 strings in parallel.
The open-circuit voltage correction factor can be calculated according to the following
formula: C Voc =1- βVoc ×(25-T).T is the lowest expected ambient temperature at the system
installation location, and β (%/℃) is the temperature coefficient of the selected module Voc
(see the corresponding module parameter table).
If a reverse current exceeding the maximum fuse current of the module is likely to pass
through the module, the module must be protected by an overcurrent protection of the same
specification. If the number of parallel modules is greater than or equal to 2 series, there must
be an overcurrent protection on each series of modules.
5.2.5.1 Wiring
To ensure proper operation of the system, observe to ensure proper polarity of cable
connection when connecting modules or loads (Such as frequency converter, battery, etc.)
(figures 1 and 2). The bypass diode may be damaged if the module is not connected
properly. The modules can be connected in series to increase the voltage. A series
connection is one that connects a wire from the positive terminal of one module to the
negative terminal of the next module. Figure 1 shows how the modules are connected in
series. Modules can be connected in parallel to increase current (figure 2). A parallel
connection is one that connects a wire from the positive terminal of one module to the
positive terminal of the next module. The number of modules in series and parallel
connection should be designed according to the system configuration. All the above
specifications must be complied with to meet the photoelectricity warranty conditions.
figure 1 figure 2

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5.2.5.2 Fuse
The fuse shall be installed with a maximum DC voltage rated and connected to each
non-grounded electrode of the array (in other words, the fuse shall be connected to the
positive and negative electrodes if the system is not grounded).
The maximum rating of the fuse in series connection with the array is normally 25A, but
the actual module-specific ratings are available in the product label and product data sheet.
The fuse rating also corresponds to the maximum reverse current that the assembly can
withstand (when one array is masked, the array is loaded into other parallel assembly arrays
to generate current), this will therefore have an impact on the number of parallel connected
arrays.
Do not connect two or more series to parallel before connecting the fuse.
5.2.6.3 Connector
Keep the connector dry and clean, and make sure the connector nuts are tightened
before connecting. Do not connect the connector if it is wet, dirty, or otherwise. Avoid
connectors from direct sunlight and soaking in water. Avoid connectors landing on the ground
or roof. The wrong connection may produce an electric arc and an electric shock. Please
check that all electrical connections are secure. Ensure that all connectors with locks are fully
locked. The main types and grades of connectors used by MAXPOWER SOLAR are as
follows:
Supplier
Type
QC Solar (Suzhou) Corporation
QC4.10-cd
Suzhou Xtong Photovoltaic Technologies
Co.,Ltd.
PV-XT101.1
Zhejiang Renhe Photovoltaic Technology
Co.,Ltd.
05-8
Staubli Electrical Connectors AG
EVO-2

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5.2.6.4 Bypass diode
Supplier
Type
QC Solar (Suzhou) Corporation
30SQ050 A (for y=3),
Max. peak reverse voltage 50 V,
Max. average forward current 30A,
Suzhou Xtong Photovoltaic Technologies
Co.,Ltd.
TS3045A (x=3, y=3, z=6)
Max. peak reverse voltage 45 V,
Max. average forward current 30A,
Zhejiang Renhe Photovoltaic Technology
Co.,Ltd.
FMK5040D(for x=4), If=40A
Max. peak reverse voltage 50 V
Max. average forward current 40A
The junction box of the module contains a by-pass diode and is connected in parallel to
the battery string in the module. When the hot spot occurs locally in the module, the diode will
work, so that the main current will no longer flow over the hot spot cell, thus limiting the
module heating and performance loss. Note that by-pass diodes are not overcurrent
protection devices. If you know or suspect that the diode is out of order, the installer or
system maintainer should contact the company. Do not attempt to open the junction box of
the module by yourself.
5.2.6.5 Cable diameter
The junction box cable diameter of the intermediate assembly shall be at least 4.0mm.
6. Maintenance of module
6.1 Visual Inspection and replacement of modules
Modules in the pv array should be regularly inspected for damage. If damage is found,
the same type of modules should be replaced, such as broken glass, broken cables,
damaged junction boxes and other factors leading to functional and safety failure of modules.
Well-designed solar systems rarely require maintenance, but there are simple steps you
can take to improve system performance and reliability.
6.1.1. It shall be maintained at least once a year by trained personnel; when the maximum
operating voltage is not less than 1500V DC, maintenance personnel shall wear rubber
gloves and insulating boots at all times during the course of their work to remove any
vegetation that may obscure the solar array and thus affect its performance.

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6.1.2. Check that the installed hardware is secured in place.
6.1.2. Check that all the array fuses in each non-grounded pole are working properly.
6.1.3. If the module is damaged (broken glass or a scratch on the back glass).it needs to be
replaced. Modules must be replaced with the same type. Do not touch the live parts of cables
and connectors when replacing modules. Appropriate Safety Devices (insulating tools,
insulating gloves, insulating boots, etc.) shall be used when handling modules.
6.1.4. To repair, an opaque material is applied to the front surface of the module. Modules
exposed to sunlight generate high voltage and are extremely dangerous.
6.1.5. The PV module junction box of medium-to-power has by-pass diodes to minimize
heating and current losses.
6.2 Connector and cable inspection
Check all cables to verify that they are securely connected; MAXPOWER SOLAR
recommends that all cables be run in proper piping and located away from easy catchment
areas. It is recommended that electrical, ground and mechanical connections be checked
every six months to ensure that they are clean, safe, free of damage and rust; that the fittings
are properly tightened; and that all cables are checked to ensure that the joints are secured.
6.3 Cleaning
The amount of electricity generated by the solar module is proportional to the amount of
light falling on it. The cells that are shielded generate relatively little power, so it's important to
keep them clean.
The PV module should be cleaned under irradiance below 200W / M2 to avoid a large
difference between the water temperature used for cleaning and the air temperature, which
may cause splinters; hard water should be softened and the module cleaned and the
remaining water on the glass surface dried.
It is prohibited to clean the PV module under the weather conditions with wind force
greater than 4, heavy rain or snow.
The water pressure on the glass surface during pressure flow cleaning shall not exceed
700 Kpa (14619.80 lb / ft2). Any additional force on the module shall be prohibited.
During the cleaning work of pv module, it is strictly forbidden to step on the module,

Installation Manual for PV Modules MPS---N-R
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splash the water to the back of the module and the cable, to ensure that the connector is
clean and dry, to prevent electric shock and fire hazard; Soft cloth, mild detergent and water
should be used. Do not put modules directly into water. Care should be taken to avoid
serious thermal shock that may damage the module.
PV module surface oil and other hard to clean materials, the use of non-friction neutral
liquid cleaner, can be not use the Alkali, acid, organic solvent cleaning modules. Do not use
corrosive solvents or wipe photovoltaic modules with hard objects.
If you are not sure whether you want to clear an array or a cross section, select a
particularly dirty array to begin with. If the percentage improvement is less than 5%, cleaning
is usually not required. The above verification should only be carried out under the condition
of constant sunshine rate (Sunny Day, strong sunshine, cloudless).
The back of the assembly usually does not need to be cleaned; when cleaning the back
of the Assembly, care should be taken to prevent the cleaning solution from seeping into the
bottom of the material.
Vegetation should be regularly cut to avoid shading the PV modules.
Water quality requirements：
PH: 5 ~7；
Chloride or salt content：0 - 3,000 mg/L
Turbidity：0-30 NTU
Electrical conductivity：1500~3000 μs/cm
total dissolved solids：≤1000 mg/L
Water hardness：0-40 mg/L
Must use non-alkaline water, the use of softened water when the conditions.
Company contacts
Company name
Oz Power Products Pty Ltd
Trading Name
Max power Solar (MPS)
Street address
11 progress Circuit Prestons NSW 2171
Website
www.maxpowersolar.com.au
Email
[email protected]
Phone
02 9607 2440