Hy solar Hy-nt10/54h User manual

Global Green Energy Indust Eco-Integrator

PV Module

Installation Manual

V.2311

Module type

List of Applicable Modules

Module model

HY-NT10/54H

HY-NT10/54BH

HY-NT10/72H

HY-P10/54H

HY-P10/54BH

HY-P10/72H

HY-NT12/66H

Single-glass module

Double-glass module

HY-NT10/54GDF

HY-NT10/54BGDF

HY-NT10/72GDF

HY-NT10/78GDF

HY-P10/54GDF

HY-P10/72GDF

HY-NT12/66GDF

Global Green Energy Indust Eco-Integrator

01 Introduction

1.1 Purpose

1.2 Scope of liability

02 Law rules and regulations

03 Safety measures

3.1 General safety measures

3.2 Operation safety measures

04 Handling & unloading and unpacking

4.1 Handling & unloading

4.2 Unpacking

4.3 Stacking of modules

05 Mechanical installation

5.1 Installation environment

5.2 Selection of installation inclination angle

5.3 Installation guidelines

5.3.1 Fixing method of bolt

5.3.2 Fixing method of clamp

06 Electrical installation

6.1 Electrical peormance

6.2 Electrical connection

6.3 Grounding

07 Maintenance

7.1 Routine inspection

7.2 PV module cleaning

Revised version and date

CONTENTS

Global Green Energy Indust Eco-Integrator

First of all, thank you ve much for using the photovoltaic modules produced by HOYUAN Green Energy Co.,Ltd.

(hereinafter referred to as HY SOLAR)

Please read all instructions in this manual and the electrical and mechanical requirements carefully before installation.

The installation and operation of PV modules requires professional skills, and only professionals are allowed to engage

in this work. All safety precautions in this manual must be strictly obseed during installation, and this manual shall be

kept for fuher reference. At the same time, the installer must inform the end customer (or consumer) of the above

matters correspondingly.

•Prior to installation, please contact the relevant local authority to determine the installation license and installation

inspection requirements that meet local requirements. The installation shall follow the safety rules applicable to all

pas and components in the system, including cables, connector, charge monitors, storage batteries, and inveers,

etc.

•The installation and maintenance of PV modules must be done by qualied engineers, and they must wear safety

helmets, insulating gloves, safety shoes and use insulating tools to avoid direct contact with 30V DC or higher volt-

age.

•During the installation and transpo of module at the project site, rain-proof measures shall be taken to prevent the

outer box from being got wet by rain.

•If PV modules are installed or operated on rainy days or in the morning with dew, appropriate protection is required

to avoid moisture penetration into the connectors.

•Unauthorized access to the installation area or PV module storage area is prohibited.

•Installation or use of damaged PV modules is prohibited.

•It is prohibited to repair PV modules by users themselves, including but not limited to replacing any PV module pas

(diode, junction box, or connector, etc.).

•Interconnecting connectors of dierent types and models is prohibited.

•The PV module is prohibited to be used in the environment containing or in contact with the following substances:

grease or organic ester compounds (such as DOP, or plasticizer), aromatic, phenolic, ketone, halogenated substances,

mineral oil, butter, edible oil, alkane (such as gasoline, cleaning lubricant, or electronic reactivator), alcohol, ceain

drugs (BaiHuaYou, woodlock medicated balm, bonesettin, banana oil, or essential balm), adhesive board and potting

(only for connectors) that can generate oxime gas,

•TBP (plasticizer), cleaning agent, herbicide, paint remover, adhesive, rust inhibitor, descaling agent, emulsier, or cut-

ting oil, cosmetics, etc., so as to avoid chemical damage and impact on the electrical safety peormance of PV mod-

ules.

•It is forbidden to install the PV module in windy weather

•It is forbidden to irradiate the PV module with focused sunlight.

•It is forbidden to use PV module in places where ammable gases may be generated.

•It is forbidden to use PV module in places related to mobile platforms, etc.(except for tracker).

•It is prohibited to disassemble and move any pa of PV module;

•If the PV module connector is wet, do not peorm any action to avoid electric shock hazard.

•Do not connect or disconnect PV module when there is current or external current in the PV module.

•The cover of the junction box shall be kept closed at all times.

•And the PV module shall be prevented from paial shadow for a long time. Otherwise, the temperature of the

shadow solar cell will rise (hot spot eect), and in serious cases, the PV module may be burnt and even a re may be

caused.

•For PV modules used in dese or sandy areas, it is recommended to use connector dust cap before installation, or

take other measures to prevent sand from entering the connector, otherwise it may cause plugging problems or elec-

trical safety hazards.

•After the module is installed on the bracket, it is recommended to inse the connector on the same day to prevent

moisture or sand entering metal pas, which may cause plugging or use problems.

•For eld wiring, special photovoltaic cables with minimum 90℃ temperature resistance, light resistance, and cross

section of not less than 4mm² shall be used as the PV connection line.

Precautions for forklift truck unloading are as follows:

1. When the forklift truck unloading is adopted for the platform truck, it shall be unloaded from both sides of the vehicle.

Before unpacking, please conrm that the outer package is intact. It is recommended to use an a knife to remove the

packing belts and wrapping lm. It is forbidden to dismantle by force so as to avoid scratching the modules in the box.

It is forbidden to unpack in case of wind force > Level 6, in rainy or snowy weather.

Follow the recommended steps below to unpack the modules. When unpacking, there shall be more than 2 persons

working, and insulating gloves shall be worn during handling.

If it is not installed in a sho time after unpacking, it shall be xed on the leaning frame with safety rope; in case of

long-term non-operation, the modules shall be laid at on two pallets with suitable size, and it is recommended no

more than 14 pieces of modules on a single pallet.

1. Prepare tools before unpacking: a knife (scissors), safety helmet, anti-falling bracket, safety shoes, and insulating

gloves, etc.

When the PV module is taken out of the packaging box, the cardboard shall be laid on the ground to prevent the PV

module from being scratched due to collision and friction with hard objects on the cement suace/ground, or color

steel tiles, or metal corrugations, etc.

The PV modules shall be stacked on the horizontal plane in an orderly and stable manner. The piece of module at the

bottom shall be stacked with the glass upside and the rest shall be stacked with the glass downside. At the same time,

cardboard shall be laid under the PV modules. The stacking quantity is recommended to be no more than 14 pieces.

Objects such as installation tools, etc. shall be avoided from being placed on the suace of the PV module.

Current classication is adopted for HY SOLAR modules. The handling personnel shall place them separately and mark

them according to the identication on the power list of the outer package of PV modules. According to the require-

ments of system design, the same current grade is generally required in the same array during installation.

If the customer requires the PV modules to be distinguished by color, the outer packing box has been marked accord-

ingly, and the PV modules shall be marked to avoid confusion when they are taken out of the packing box and stacked.

According to the requirements of system design, the colors of PV modules in the same row or in the same matrix shall

be consistent.

It is forbidden to store modules in soft geological conditions or where there is ponding, and it is forbidden to place

modules on slopes > 4°.

If the modules need to be stored for a long time, it is recommended to store them in a standard warehouse, check

them regularly, and reinforce the abnormal inclined packages in the warehouse in time.

This manual provides detailed instructions and impoant safety precautions , to electrical connection and mainte-

nance of cstalline silicon PV modules (hereinafter referred to as PV modules) manufactured by HY SOLAR.

1.1 Purpose

1.2 Scope of liability

Since the use of this manual and the installation, operation, use and maintenance of PV modules are beyond the con-

trol of HY SOLAR, this manual does not have the any signicance of warranty, whether expressed or implied. HY

SOLAR will not be liable for any kind of inju, including but not limited to loss, damage, personal inju or extra

expenses caused by improper installation, operation, use and maintenance of PV modules and systems.

HY SOLAR resees the right to update this manual without prior notice. In case of any inconsistency between dierent

language versions of this manual, the Chinese version shall prevail.

The mechanical and electrical installation of PV modules shall refer to corresponding laws and regulations, including

requirements of electrical laws, building laws and electric connection. These regulations va depending on the loca-

tion of the installation, e. g. building roofs, and water suaces, etc.; and they may also va depending on the voltage

of the installation system and the use of DC or AC. Please contact the local authority for specic terms.

The design of HY SOLAR’ s PV module meets the standards of IEC61215, IEC61730 and UL61730. The PV module

meets the requirements of Safety Class II and its application level is Class A.

PV modules can be used in systems that are accessible to the public, greater than DC 50V or 240W. It can meet Class C

re rating (IEC61730) and Catego 4 re rating (UL61730)

All safety aicles should be read and understood prior to operations such as installation and wiring, etc. or

maintenance of PV modules. The PV module will generate direct current when exposed to sunlight or other light

sources. Whether or not connecting with PV modules, any direct contact with live pas of PV modules, such as

connecting terminals, may result in personal inju or death.

HY SOLAR PV Module Installation Manual V.2311

If the PV module is not used for the time being, please do not open the

product package. The goods shall be stored in a d and ventilated place

protected from light.

It is suggested to unpack an appropriate amount of PV modules eve day

according to the progress of the project, and the unpacked PV modules

shall be installed within the same day. Since the PV modules are stacked on

the ground after unpacked, the PV modules may be immersed in water for

a long time in case of severe weather such as rainstorm, which may aect

the reliability of the product. In case of severe weather such as typhoon,

the uninstalled PV modules may also be blown away.

When the PV module is transpoed to the project site, it must be transpoed in the packing box

provided by HY SOLAR, and shall be stored in the original packing box before installation. Please

protect the packing from damage.

The safety of the PV module shall be protected during unloading, especially during the hoisting of

roof projects. The PV modules shall be placed in protective devices before being hoisted to the

roof to avoid collision with the wall during hoisting.

There are two packing methods for modules: sho-side veical and long-side veical. The two

packing methods have dierent unloading and unpacking requirements. And the packing mode is

as follows;

Precautions for unloading by crane are as follows:

1. When the crane is used for unloading from the at truck (as shown in the gure), please use the special tooling for

operation. Before hoisting, select the hoisting tools with sucient tension and size according to the weight and size of

the modules. During hoisting, adjust the position of the sling to ensure the stable center of gravity. Operate the crane

at a constant speed. When it is near the ground, keeping the package upright, place it lightly on the at ground, and

transfer to the at hard ground for storage.

2. It is strictly forbidden to hoist in case of wind force greater than Level 6, or in rainy and snowy days;

3. For long-side veical packing, maximum 2 pallets of modules can be hoisted at most at a time,; and for sho-side

veical packaging, a maximum of 2 horizontal modules can be hoisted at a time. Before hoisting, cut o the module

stacking straps;

Due to the limitation of the container height, when the PV module is moved out of the container, the forklift

truck shall lift the module, and the distance between the bottom suace of the package and the bottom suace

of the container shall be less than 50mm; otherwise, the product package may collide with the door frame of the

container, which may cause damage to the PV module. When unloading from the container, after each row of

products is unloaded, the modules in the front row can be lifted and unloaded in turn.

Precautions for packaging turnover are as follows:

1. During turnover of long-side veical modules, the packing box shall be propped against the forklift truck

mast. The mast shall be veical to the fork. The mast structure shall be rm (bearable pressure≥1.5t). When the

whole pallet of module leans against the mast, the mast shall not be deformed due to the pressure. Two safety

ropes with tensile strength ≥2000kgf shall be fastened on the forklift truck, and safety guardrails shall be

installed on both sides of the front end of the forklift.

2. The straight-line running speed of the vehicle shall be controlled to be ≤5km/h, and the turning speed shall be

≤3km/h to avoid emergency stop and rapid sta.

3. When the manual hydraulic lift is used for turnover, the distance between the upper suace of the forks and

the ground shall be ≤75mm.

2. For the long-side veical unpacking steps, a special anti-falling bracket must be used:

(1) Cut the wrapping belts, get rid of the wrapping lm, and remove the upper cover and the caon;

(2) Inse the anti-falling bracket into the bottom of the pallet from the glass suace or the back plate suace of the

module;

(3) Inse the xing pin into the front hole of the bracket;

(4) Cut o all the transverse packing belts inside;

(5) Cut o the rest packing belts in the longitudinal direction except the inner two;

(6) Slowly push the module against the bracket;

(7) Cutting o the remaining packing belts;

(8) Tear o the anti-dump adhesive tape on both sides, notice to tear o only one piece of anti-dump adhesive tape

with module thickness at a time, and then take out the modules one by one in sequence.

If the above precautions are not obseed, the warranty of HY SOLAR shall be invalid.

•The PV module mounting bracket must be made of durable, corrosion-resistant and ultraviolet-resistant materials,

and the mounting bracket system must be subjected to static mechanical analysis test by the competent third-pay

testing agency to meet the requirements of the count, region or corresponding international standards.

•The PV module must be securely fastened to the mounting bracket. If the PV module is installed in snowy areas, the

height of the bracket shall ensure that the lowest point of the PV module will not be covered by snow. In addition,

ensure that the lowest point of the PV module is not shadowed by surrounding trees or other vegetation.

•When the PV module is mounted on the ground, it is recommended that the minimum distance from the oor to the

meanwhile, it is benecial for the accumulated rainy water on the suace of PV mod-

ules to ow away, so as to avoid a large amount of long-time accumulated water from

leaving marks on the glass suace, thereby aecting the appearance and peormance

of the PV module.

•The PV modules connected in series shall be installed in the same orientation and

angle. Dierent orientations and angles may result in dierent amounts of solar radia-

tion received by each module, resulting in a loss of power.

① The PV module is placed on the suppo bracket.

② As shown in the above bolt installation diagram, inse 4 stainless

steel bolts (M8) into the mounting hole (9x14mm).

The size of mounting holes shall be 7x10mm at 400mm spacing and 4

stainless steel bolts of M6 type shall be used.

The length of the bracket must be longer than the size of the PV module, or it shall be conrmed by HY

SOLAR in advance;

The above two diagrams show the installation method by using aluminum clamp . "D” indicates the allowable

installation range of aluminum clamp, and the specic recommended installation position and corresponding

load are as shown in Table 1( “---” indicates that the PV module is not applicable to the above installation

method).

Each aluminum clamp is matched with an M8 bolt, a at washer, a spring washer and an M8 nut, and the

xing steps are as follows:

① Place the PV module on two brackets (not provided). The brackets must be made of stainless steel or be

treated with corrosion protection (e. g. hot-dip galvanized treatment). Each PV module needs at least 4

clamps to x. During installation, please do not let the clamp directly contact the glass and deform the frame,

otherwise it will result in PV module damaged.

② Be sure to avoid the shading eect of the PV module due to the shadow formed by the clamp. The drain

hole shall not be covered by theclamp . The clamp must have an overlap of at least 10mm with the PV module

frame (the section of the clamp can be changed on the premise of ensuring the reliable installation of the PV

module).

③ The upper suace of the bracket in contact with the PV module frame shall be provided with a groove

matched with the M8 bolt.

④ If there is no groove on the bracket, a hole of appropriate diameter shall be drilled at the position men-

tioned above for bolt xing.

⑤ Make sure that the installation sequence of each clamp is at washer, spring washer and nut.

⑥ Figure 4 shows the middle mountingclamp , and Figure 5 shows the edge mounting clamp and its sectional

view. The size of the middle and side pressing blocks are a≥50mm, b≥26mm, c≥5mm, d≥28mm, =9mm and

the recommended wall thickness≥4mm. When the bolts and screws are of Grade 8.8, the recommended tight-

ening torque is 17-23Nm. Consult the installer or bracket supplier for specic torque values.

⑦ In order to prevent the module from falling o from the frame after installation, it is recommended to select

the clamp with patterned groove structures for edge and intermediate clamp k with contact suaces with

frame A. The recommended number of groove structures is about 9, the distance between adjacent grooves is

recommended to be about 1.2mm, and the groove depth is recommended to be about 0.6mm, as shown in

Figure 5.

⑧ The PV module shall be xed by using professional solar clamp (as shown in Figure 6), and the overlapping

pa between the suace C of PV module and the guide rail shall be ≥15mm. If improper clamp or incorrect

installation method is used, the warranty of HY SOLAR will be invalid.

⑨ For the modules with the length of more than 2.2m or the width of more than 1.3m, it is recommended to

use the clamp with special anti-skidding design. If it is attached to the arc-shaped pressing suace of side A

of the frame, or with the structure design of clamping, the clamp shall meet the requirements of length

az60mm, thickness ≥5mm, material 6005-T6, Rp0.2>225MPa, and Rm265MPa. Technical requirements and de-

tails of pressing blocks can be consulted by after-sales seice team of HY SOLAR.

③ Ensure that two stainless steel washers are adopted for each bolt, one on the upper side and one on the

lower side of the bracket. The washer shall have a minimum thickness of 1.5mm and an outside diameter of

16mm, where the outside diameter of the washer used for the 210 module is 20mm, and is screwed on a stain-

less steel spring washer or toothed lock washer. Finally, lock with stainless steel nut.

④ The tightening torque of M6 bolt is recommended to be 9~12Nm, and the tightening torque of M8 bolt is

recommended to be 17~23Nm.

Where: Cvoc is the open circuit voltage correction coecient. αvoc (%/ ° C) is the temperature coecient of the

open-circuit voltage of the selected module (refer to the module specication). Tmin (° C) is the lowest expected ambi-

ent temperature where the system is installed.

The voltage of the string shall not be higher than the maximum voltage that the system can withstand as well as the

maximum input voltage of the inveer and other electrical equipment in the installation system. To ensure this, the

string open-circuit voltage can be calculated by using the following formula:

According to the maximum rated fuse current of the PV module and local electrical installation standards, suit-

able fuses or anti-reverse diodes are required for the parallel connection of the PV module based on circuit

protection principles.

The electrical design and calculation of the system shall be determined by the qualied electrical engineers.

In order to ensure the normal operation of the system, when connecting the PV module or connecting the load (such

as frequency conveer, or batte, etc.), it is necessa to obsee and ensure that the polarity of the cable is connect-

ed correctly. If the PV module is not connected correctly, the bypass diode may be damaged. Figure 7 shows the con-

nection of PV modules in series and in parallel. The PV module can be wired in series to increase voltage by connecting

the wiring from the positive terminal of one PV module to the negative terminal of the next PV module. The PV module

can be connected in parallel to increase current by connecting the wiring from the positive terminal of one PV module

to the positive terminal of the next PV module.

If one group of arrays is connected to another with opposite polarity, irreparable damage to the product can

occur. Be sure to verify the voltage and polarity of each string before connection in parallel. If the measurement

shows that the polarity between the string is reversed or the voltage dierence is greater than 10V, the structural

conguration must be checked before making the connection.

The number of PV modules connected in series and in parallel shall be reasonably designed according to the

system conguration. The PV modules of dierent electric peormance models cannot be connected in one

string.

Solar dedicated cables and connectors shall be used in the system, and all connections shall be securely fas-

tened. The cable size shall be 4mm2(12AWG), and must withstand the maximum open circuit voltage of the PV

system.

When the cable is xed on the bracket, it is necessa to avoid mechanical damage to the cable or PV module,

and do not press the cable with force. Cables shall be xed by proper means, and shall be xed on the bracket

by specially designed binding coils and wire clamps that are resistant to ultraviolet light. Avoid direct sunlight

and water soaking of cables.

Keep the connector d and clean, and make sure that the nut of the connector is in a tightened state before

connecting. Do not connect the connector when it is found to be wet, diy or in other bad conditions. Protect

connectors from direct sunlight and immersion in water. Avoid landing the connector on the ground or on the

roof.

When the PV module is in load condition , please do not inse or unplug the connector. When it is necessa to

disconnect the connector, it is required to ensure that the PV module is in load condition and professional un-

locking tools and safety protection measures must be used. It is forbidden to pull or damage the locking struc-

ture.

The junction box of the PV module contains a bypass diode which is connected in parallel with the cell string of

the PV module. The bypass diode in the junction box can avoid the PV module peormance degradation caused

by shadow or covering. Please refer to the junction box diode specication provided in the relevant product

specication.

When the local hot spot phenomenon of the PV module occurs due to shadow or covering, the diode in the

junction box is triggered in active condition, so that the current of the PV module does not ow through the hot

spot cell any more, thereby limiting the heating and peormance loss of the PV module. When suspecting or

nding that the diode is faulty, please contact HY SOLAR and do not t to open the junction box cover by your-

self.

In the design of the PV module, the anodized corrosion-resistant aluminum alloy frame is adopted as the rigid suppo.

In order to ensure the safety in use and avoid the PV module from being damaged by lightning and static electricity,

the frame of the PV module must be grounded. When grounding, the grounding device must be in full contact with the

interior of the aluminum alloy to penetrate the anodized coating on the suace.

There is a grounding hole with a diameter of about Φ4mm on the edge of the module frame. As well as standard

grounding symbol mark “ ” beside the grounding hole. The grounding wire can be connected with bolts. Please do

not drill holes in the module frame or modify the standard holes, otherwise the warranty will be invalid.

The welding and grounding devices, including Burndy (formerly Wiley Electronics) WEEB and similar equipment

such as barb washers, to compliance with the UL-467 and suitable for electrical welding and grounding of PV

modules.

Other methods of grounding may be used when testing suppo systems as required by UL2703. Do not drill any

additional grounding holes in the frame of the PV module.

Holes marked with grounding marking on the frame can only be used for grounding, and cannot be used for PV

module installation.

Do not do electrical connections between modulesbefore grounding.

The PV modules must be checked and maintained regularly, especially during the warranty period. This is the liability

that the user shall undeake, which will help to identify and eliminate problems in time and ensure the safe and eec-

tive operation of the PV system.

Regularly check must be conducted to see whether the PV modules in the PV array are damaged, such as broken

glass, broken cables, damaged junction boxes, damaged cells, cracked back-sheet and other factors that may lead to

functional and safety failures of PV modules. In case of the above problems, the supplier shall be informed to replace

the PV module of the same type in time.

It is recommended to peorm a preventive inspection eve 6 months, and not to replace components of PV modules

without authorization. If inspection or maintenance of electrical or mechanical peormance is required, it is recom-

mended that the operation be carried out by a qualied professional to avoid electric shock or personal inju or

death.

Routine maintenance measures shall be taken to keep PV modules free of snow, bird droppings, seeds, pollen, leaves,

branches, dust, and stains, etc.

If there is a lot of di accumulation on the suace of PV module, which has seriously aected the power generation,

the cleaning shall be carried out in the early morning, evening, or cloudy day (when the irradiance is lower than 500W/

㎡ ), and it is strictly prohibited to car out the cleaning operation before or after noon or in the period of strong

direct sunlight; and when cleaning in the morning and evening, it shall be carried out in the period with weak sunlight,

so as to prevent the glass cover plate from cracking due to the heat and cold action of the PV module.

Requirements of Cleaning Fluid:

1) Water shall be neutral, with PH: 6-8;

2) Electroconductibility: ≤500μs/cm;

3) Total dissolved solid volume: ≤1000mg/L;

4) Water hardness: ≤300mg/L;

5) Water pressure at nozzle: not more than 0.5Mpa.

Precautions for cleaning:

1) The temperature dierence between the water used for PV module cleaning and the module shall not be greater

than 10° C; and when the ambient temperature is lower than 5° C, the PV module shall not be cleaned to avoid cracking

PV glass;

2) It is forbidden to clean the PV module under the meteorological conditions including wind force greater than level 4,

heavy rain or heavy snow, heavy rain, sand blowing and hail;

3) The PV modules shall be wiped with d or damp soft and clean cloth. It is strictly forbidden to use corrosive sol-

vents or hard objects to clean PV modules;

4) It is forbidden to wipe the PV module with materials with high roughness and hardness;

5) Do not clean module when glass is broken or wires are exposed to avoid electric shock;

6) Do not leave any cleaned tools on the glass to avoid hot spots;

7) Please do not stand on the suace of the module glass to avoid micro crack of the cell.

8) The PV module shall be cleaned by qualied professionals, and they must wear safety helmets, safety belts, plastic

gloves, insulating shoes, protective clothing and other safety protection tools correctly before and during cleaning to

prevent falling and electric shock.

01 02 03 04 05 06 07 08 09 12 13 14 15 16

Warning

Global Green Energy Indust Eco-Integrator

01 Introduction

Where: N-Number of serial module. Voc-open circuit voltage of each PV module (refer to nameplate or product

manual).

02 Law rules and regulations

03 Safety measures

2. Select the forklift truck with proper tonnage. The distance be-

tween the teeth of the forklift truck is adjustable, and the teeth

shall be close to the foot piers on both sides of the pallet as much

as possible. The teeth of the forklift truck can be inse deeply into

the position L≥3/4 at the bottom of the pallet. The height of the

forklift truck mast shall be ≥1.7M, and the width of the forklift truck

mast shall be ≥1.5M.

3. Put cushion materials such as EPE or rubber cushion in front of

the forklift truck mast. It is strictly forbidden for the forklift to

directly contact the module package to prevent the modules from

being broken due to external force impact.

4. In the process of unloading, if the package blocks the driver’ s

sight, it is recommended to reverse the vehicle and arrange person-

nel to command to prevent personnel or aicles from being collid-

ed during the driving, resulting in personal inju or package falling.

•The installation angle of the PV module refers to the angle between the PV module suace and the ground plane, as

shown in Figure 1. The maximum power output is obtained when the PV module is directly facing the sun.

•When installed in the nohern hemisphere, the PV modules should preferably face south. When installed in the

southern hemisphere, the PV modules should preferably face noh. For detailed installation inclination angle, please

follow local regulato guidelines or recommendations from experienced PV module installers. The installation incli-

nation angle of the PV module recommended by HY SOLAR is not less than 10 ° , so that the dust on the suace of

the PV module is easy to be taken away by rain when it rains, so as to reduce the cleaning times of the PV module;

The grounding bolt is made of stainless steel. First inse the bolt through

the spring washer, cup washer, at washer and star washer, and then pass

through the grounding hole, spring washer and at washer of the frame,

and nally tighten the bolt with the nut. Please note: the upper limit of tem-

perature of the wire is 85 ° C. Refer to Figure 8 for installation of grounding

hole for installation diagram.