Sunman Earc smf290m-6x10dw User manual

eArc SMF

Installation Manual

for Flat Roofs (Bitumen)

Tape

 
 
Contents 
0 Summary..................................................................................................................1
1 Disclaimer ........................................................................................................1
2 Responsibility ..................................................................................................1
3 Copyright and Trademark Information ............................................................1
4 Warranty Warnings...........................................................................................1
5 For Further Information ...................................................................................1
0 Safety precautions....................................................................................................2
0 Mechanical / electrical properties ............................................................................4
0 Storage and unpacking.............................................................................................5
0 Installation................................................................................................................6
1 Module wiring..................................................................................................8
2 Grounding ........................................................................................................8
0 Installation instructions............................................................................................9
1 Module and tools..............................................................................................9
1.1 Module ..................................................................................................9
1.2 Construction tools .................................................................................9
2 Unpacking, Handling and Checking Precautions ..........................................11 
3 Construction Precautions ...............................................................................11 
4 Precautions and Tips for Gluing Modules .....................................................12 
5 Construction plan...........................................................................................12 
5.1 Cleaning the roof surface ....................................................................12 
5.2 Positioning and releasing the line .......................................................13 
5.3 Gluing rail ...........................................................................................14 
5.4 Laying modules...................................................................................16 
6 Wiring and testing ..........................................................................................20 
0 Maintenance...........................................................................................................21 
Annex A .......................................................................................................................22 

Electrical performance parameter ........................................................................22

Annex B .......................................................................................................................23

Cleaning agent .....................................................................................................23

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1.0 Summary

Thank you for purchasing Sunman eArc PV modules. This guide contains information

regarding the installation and safe handling of Sunman (Zhenjiang) Company Limited

eArc SMF PV system. Sunman (Zhenjiang) Company Limited referred to as

“SUNMAN”. Users and installers must read and strictly follow the installation manual.

Failure to follow these safety guidelines can result in personal injury or property

damage. The installation and operation of solar modules require specialized skills, and

only professionals can do the job. Please read the safety and installation instructions

before using and operating the modules. The installer must inform the end customer (or

consumer) of the above matters accordingly.

1.1 Disclaimer

Sunman reserves the right to change this installation manual without prior notice.

Sunman does not guarantee any express or implied information contained in this

manual.

Failure in operating according to instructions in this manual during installation will

cause the warranty invalid.

1.2 Responsibility

Sunman is not responsible for any form of injury, including but not limited to

physical injury and property damage caused during module operation, system

installation and whether operated in accordance with the instructions in this manual.

1.3 Copyright and Trademark Information

and the SUNMAN logo are trademarks of Sunman (Zhenjiang) Company Limited.

1.4 Warranty Warnings

WARRANTY VOID IF NON-SUNMAN-CERTIFIED HARDWARE IS ATTACHED

TO eArcTM PV System.

1.5 For Further Information

For additional technical support documentation, please visit the Support page of

the SUNMAN website at www.sunman-energy.com

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2.0 Safety precautions

WARNING: Please read and understand all safety instructions

before installing, wiring, operating, or maintaining modules. DC

power is generated when the module is exposed to sunlight or

other light sources. Direct contact with live parts of the module,

such as terminals, whether connected or not, may result in

personal injury or death.

Safety rules

◼All installation work must be in full compliance with local regulations and

corresponding national or international electrical standards.

◼Use insulated tools to reduce the risk of electric shock.

◼Use appropriate protective measures (slip gloves, overalls, etc.) to avoid direct

contact with workers at 30V DC or higher, while avoiding direct contact with

sharp edges during installation to protect the operator's hands.

◼Do not wear metal ornaments when installing, to avoid puncturing the modules

and causing electric shock.

◼If modules are installed or operated on rainy days, strong winds or dew

mornings, appropriate protective measures should be taken to avoid injury to

modules and workers.

◼Children or unauthorized personnel are not allowed to access the installation

area or module storage area.

◼If the circuit breaker and overcurrent protection circuit breaker cannot be

opened, or if the inverter cannot be turned off during the module installation

or wiring, cover the array modules with opaque material to stop the power

output.

◼Do not use or install damaged modules.

◼If the module surface is damaged or worn, direct contact with the surface of

the module may result in electric shock.

◼Do not attempt to repair any part of the module, there are no user-accessible

components within the module.

◼The cover of the junction box should remain closed at all times.

◼Do not split the modules or move any part of the module.

◼Do not artificially condense light on modules.

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◼Do not connect or disconnect modules when there is current in the module or

external current.

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3.0 Mechanical / electrical properties

The rated electrical performance data for the modules is measured under standard test

conditions (STC) of irradiance of 1000 w/m2, AM 1.5, and cell temperature of 25 °C.

The specific electrical and mechanical performance parameters of Sunman eArc

modules are included in Annex A of this installation manual. The main electrical

performance parameters under STC conditions are also marked on the nameplate of

each module. The maximum system voltage for all modules is 1000V.

In some cases, the current or voltage generated by the module may be greater than the

optimal operating current or voltage of its standard test condition (STC). Therefore,

when determining the component rating and load value, the module open circuit voltage

and short circuit current at STC should be multiplied by 1.25.

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4.0 Storage and unpacking

Precautions and general safety rules

◼Store modules in a dry and ventilated environment.

◼The modules must be transported in the package provided by Sunman and

stored in the original package before installation. Please protect the packaging

from damage. Open the package according to the recommended unpacking

steps. Care must be taken during unpacking, shipping, and storage.

◼Do not apply excessive loads on the modules or twist the modules.

◼Do not carry the modules through the wires or junction boxes of the modules.

◼Do not stand, climb, walk or jump on modules.

◼Do not allow sharp objects to touch the modules. Scratches can directly affect

the safety of the modules.

◼Do not place the modules in an environment where there is no reliable support

or is not fixed.

◼Do not change the wiring method of the bypass diode.

◼Keep all electrical connections clean and dry.

Product identification

◼Barcode: each individual eArc has a unique serial number. The serial number

has 18 digits. The 1st to 4th digits are the module type for internal use, and 5th

to 8th digits are the year code, and the 9th and 10th digits are the month code,

and the 11th and the 12th digits are the week code, and the 13th and 14th digits

are the month code, and the 15th to 17th digits are order number, and the 18th

to 21th digits are the sequence codes. For example, xxxx20210415xxxxxxxxx

means the module was made in the 15th week of 2021. Each module has only

one bar code. It is permanently attached to the interior of eArc and is visible

from the top front of eArc. This bar code is inserted prior to lamination.

◼There is a nameplate, which shows the model number, main electrical

properties, safety specifications and certification indicator, on the back of each

module.

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5.0 Installation

Precautions and general safety rules

◼Before installing the modules, please contact the relevant department to obtain

information about the installation site and the construction permit, and also

comply with the installation and inspection requirements.

◼Check the applicable building codes to ensure that the building to be installed

and its structure (roof, facade, load-bearing, etc.) has sufficient load-bearing

capacity.

◼During installation, make sure that the modules are installed on a fire-resistant

roof. According to UL790 standards, Sunman eArc modules are rated as fire

rating C.

◼The eArc modules are compliant with application level A (equivalent to safety

level II, IEC 61730-1). This type of modules can be used in systems where the

public is likely to come into contact with voltages greater than 50V or power

greater than 240W.

Environmental conditions

The modules are suitable for general climatic conditions, ie with reference to IEC

60721-2-1- Classification of environmental conditions Part 2-1: Environmental

conditions occurring in nature - temperature and humidity.

◼If the modules are used in a special installation environment, please consult

the technical support department of Sunman in advance.

◼The installation surface should be flat without bumps or pits.

◼The modules must not be installed near flames or flammable objects.

◼Do not expose modules to artificial condensing light sources

◼The modules should not be immersed in water (pure water or salt water), or

installed in long-term water environment (pure water or salt water) (eg

fountains, sprays, etc.) or area prone to water accumulation (eg roof drain, low-

lying areas, etc.).

◼If the module is placed in a salt mist (ie marine environment) or in an

environment containing sulfur (ie, sulfur sources, volcanoes, etc.), there is a

risk of corrosion.

◼Failure to follow the above precautions, Sunman Warranty will be invalid.

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Installation requirements

◼Make sure the modules meet the overall technical requirements of the system.

◼Ensure that components of other systems do not cause damaging mechanical

or electrical performance effects on the modules.

◼Allow modules in series to increase voltage or in parallel to increase current.

When connected in series, the positive pole of the module is connected to the

next negative pole. When connected in parallel, the positive pole of the module

is connected to the positive pole of the next module.

◼The number of bypass diodes provided varies depending on the module model.

◼Connect the appropriate number of modules according to the voltage

specifications of the inverter used in the system. Even at the worst local

temperature conditions, the connected modules must produce no more than the

voltage allowed by the system. If overcurrent protection devices (fuse) are not

used in series within each string of modules, up to two strings of modules can

be connected in parallel. If a suitable verified overcurrent protection device is

connected in series with each string of modules, three strings or more modules

can be connected in parallel.

◼In order to avoid (or reduce) the mismatch effect of the array, it is

recommended to connect modules of similar electrical performance on the

same string.

◼In order to reduce the risk of indirect lightning strikes, loops should be avoided

when designing the system.

◼The modules should be securely fastened to withstand all possible loads,

including wind and snow loads.

Optimal orientation and inclination

◼In order to achieve maximum annual power generation, the optimal orientation

and inclination of the PV module should be determined first. The maximum

electrical energy is typically generated when sunlight is directed onto the PV

module.

Avoid shadows

◼Even small shadows (such as dust) can cause a drop in power generation. If all

surfaces of the module are uncovered throughout the year, the module is

considered "no shadow". Ensure that the sun shines on the modules even on

the shortest day of radiation all through the year.

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◼EVA aging caused by frequent occlusion of modules and long-term heating of

the diode can affect the lifetime of the module.

5.1 Module wiring

Correct electrical wiring

◼Check that the wiring is correct before starting the system. If the measured

open circuit voltage (Voc) and short circuit current (Isc) do not match the

specifications provided, there may be a wiring fault.

Correct connection of the MC4 connector

◼Make sure the MC4 connector is secure and properly connected. The MC4

connector must not be subjected to external pressure. The MC4 connector

can only be used for circuit connection functions and should not be used to

turn the circuit on and off.

◼The MC4 connector should be kept dry and clean to prevent rain and moisture.

Avoid direct sunlight and water soaking of the MC4 connector.

Use appropriate materials

◼Depending on local fire, construction and electrical standard, use dedicated

solar cables and suitable MC4 connectors to ensure the electrical and

mechanical performance of the cable.

◼The solar cable licensed for use is a single-wire cable, 2.5-10mm2 (8-14

AWG), 90°C grade, with appropriate insulation to withstand the maximum

possible system open circuit voltage. The appropriate wire size needs to be

chosen to reduce the voltage drop. The wire should be made of copper.

Cable protection

◼Secure the cable to the mounting system with a cable tie that is UV

resistant. Appropriate measures should be taken to protect the exposed

cable from damage (eg. in a plastic sleeve with UV aging resistance). Avoid

direct exposure of the cable to direct sunlight.

5.2 Grounding

◼With adhesive tape on the back of SMF modules, there is no metal conductor

for the module, so no grounding of module is required.

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6.0 Installation instructions

6.1 Module and tools

6.1.1 Module

SMF modules

156.75mm

158.75mm

166mm

SMF290M-6X10DW

SMF310M-6X10DW

SMF140F-12X04DW

SMF290M-6X10UW

SMF305M-6X10DW

SMF140F-12X04UW

SMF345M-6X12DW

SMF310M-6X10UW

SMF285F-12X08DW

SMF345M-6X12UW

SMF305M-6X10UW

SMF285F-12X08UW

SMF375M-6X12DW

SMF430F-12X12DW

SMF370M-6X12DW

SMF430F-12X12UW

SMF375M-6X12UW

SMF320F-12X09UW

SMF370M-6X12UW

SMF430F-6X24DW

The electrical performance parameters are detailed in Annex A.

6.1.2 Construction tools

◼Aluminum support rail, silicone sealant (glue), Compaction roller, plastic

roller, cleaning tool, tape measure, thread release tool, etc.

◼Aluminum support rail

The material is 6063-T5/T6.

The dimension of support rail is 80x20x1 mm

◼silicone sealant (glue)

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◼Glue gun

◼Plastic roller and cleaning tool

Plastic roller

To compact adhesive tape under the cell.

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6.2 Unpacking, Handling and Checking Precautions

◼Do not open modules outer Package before installation.

◼Check the outer package for damage before unpacking.

◼Slip-Proof Gloves are recommended for unpacking and handling.

◼Do not grab the modules by the junction box or cables during unpacking or

handling.

◼Modules should be handled and lifted by at least two people. Do not touch the

solar cell area during handling to avoid cell-cracks.

◼Be careful while carrying the modules. Avoid hitting the modules on the

ground or other sharp, hard objects. Scratches will affect the module’s safe

operation.

◼Check the surfaces of the modules, make sure there’s no damage to the

frontsheet and the backsheet.

◼Check the junction box, connectors, and cables for any damage. Double check

if the junction box cover is fixed securely.

◼Do not paint or apply glue or label on the surface of the modules.

6.3 Construction Precautions

◼Normal construction can be carried out in the temperature range of -10 to 45

Celsius degrees (5 to 40 Celsius degrees is the best), and the humidity is below

80 Celsius degrees.

Cleaning tool

Power washer

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◼The surface of the roof must be cleaned or wiped dry, free of floating soil, oil,

etc. In order to achieve the required adhesion, the roof shall be cleaned using

the cleaning agent specified in Annex B or Sunman- approved cleaning agent.

◼The bondage shall not be torn or peeled within 24 hours after construction.

◼The roof angle is within 45 degrees.

◼The adhesive surface needs to be flat without pits or protrusions.

◼The height of the structural adhesive should not be less than 3mm.

◼Support rail should be laid along the direction of the roof water flow, to ensure

smooth drainage (preferred)

◼When the laying direction of the support rail is perpendicular to the direction

of the water flow, the rail and the roof should be pasted intermittently to ensure

smooth drainage (not recommended)

6.4 Precautions and Tips for Gluing Modules

◼Please make sure the surface is cleaned and there are no water pits before

gluing；

◼Glue along the middle line of the rail. Width of silicone glue strips should

exceed 10 mm and height of the strips should exceed 4 mm

◼Applying the silicone glue should be a continuous and even movement.

Please use a roller to spread out the glue strips evenly. Do not shave the glue

strips to spread them out；

◼Make sure to complete the gluing and mounting over a duration that does not

exceed 5 minutes；

◼Silicone sealant will cure to a depth of 2-3mm in 48 hours. Do NOT apply

any force on the module before curing is complete；

6.5 Construction plan

Note: The installation steps are illustrated with waterproof membrane for reference only.

Different roofing types can be constructed according to this step

Installation steps

6.5.1 Cleaning the roof surface

Remove debris from the roof base and use a designated or approved cleaning

agent (Annex B) to clean the roof. If the roof is very dirty, use a low-pressure water

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spray or power washer before using the cleaner. Use 1/4 cup of trisodium phosphate,

1/2 cup of liquid cleaner (optional) and 5 gallons of water for cleaning.

6.5.2 Positioning and releasing the line

◼Locate the line and determine the installation position of the module.

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6.5.3 Gluing rail

◼Paste butyl tape according to the locating lines.

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◼After attaching the butyl adhesive tape, use a plastic roller to compress the tape to

ensure the adhesive performance

◼Paste the rail on the butyl tape, and use the plastic roller to compress the tape and

rail.

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6.5.4 Laying modules

◼Making Glue on the rail followed the Precautions and Tips for Gluing

Modules;

◼The two ends of a single module are continuously glued, and the middle

adhesive area is glued sectionally. The glue length is 200mm. The sectional

distance and glue length in middle can be adjusted according to the actual

situation on site

Aluminum tube（80*20*1mm）

Butyl tape（80*1mm）

Bitumen roof

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◼Do not bend the module during installation. Two people should grasp the

white edge of the module and place it onto the glue. Modules should be in a

straight position during placement. Do not re-glue the modules.

◼Once modules are placed, avoid hand-pressing the cell-area to facilitate

adhesion. Instead use a compaction roller to press the edge (non-cell area) of

the module down. Also use a Plastic roller to apply gentle force to the cell

area to facilitate adhesion.

◼The minimum distance between the modules is 2mm，and the distance

between each array is 500-800mm, which is used as a construction

maintenance walkway. (refer to the pictures)

◼If the module is selected as 12*12 series (the junction box is in the long side

direction of the module), the junction box side should placed at the edge

position for wiring and maintenance.

◼Install remaining modules according to the preceding steps

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