Flisom eFlex Series Setup guide

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
1
This manual applies only on Flisom’s eFlex Series modules
Flisom eFlex Series
Safety & Installation
Guideline
for eFlex

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
2
This manual applies only on Flisom’s eFlex Series modules
Table of Contents
1Introduction.......................................................................................................................................3
1.1 Before you start ........................................................................................................................3
1.2 Safety........................................................................................................................................3
2Storage and Transportation..............................................................................................................5
2.1 Packaging.................................................................................................................................5
3Installation.........................................................................................................................................5
3.1 Environment..............................................................................................................................5
3.2 Handling....................................................................................................................................5
3.3 Mechanical................................................................................................................................6
3.4 Module Orientation and Shading..............................................................................................6
3.5 Application................................................................................................................................7
3.5.1 Unpacking the Module......................................................................................................... 8
3.5.2 Site Preparation................................................................................................................... 8
3.5.3 Module arrangement recommendation................................................................................ 9
3.5.4 Roof Application................................................................................................................... 9
3.6 Electrical................................................................................................................................ 12
3.6.1 Grounding modules ........................................................................................................... 12
3.6.2 Inverter............................................................................................................................... 12
4Technical Information .................................................................................................................... 13
5Operation....................................................................................................................................... 14
6Inspection and Maintenance.......................................................................................................... 14
7Disposal......................................................................................................................................... 14
8Disclaimer...................................................................................................................................... 14
9Information..................................................................................................................................... 14
9.1 Third Party Supplier Information............................................................................................ 15
Warning
Flisom eFlex PV-Modules are electrical devices for outdoor use. They generate electricity by
sunlight. This manual contains important safety information and describes the correct installation,
use and disposal of the product. Please read the manual carefully before installation to avoid
endangering your life and the environment.
If no other local regulations apply a solar system has to be constructed, installed and commissioned
by a qualified and certified electrically skilled person. Only use proper tools and equipment described
in the manual. In case of any questions contact [e-mail].

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
1 Introduction
Flisom eFlex Series modules are thin film photovoltaic devices which convert sun light into direct
electrical current (DC). The eFlex is a flexible and lightweight solar panel designed for integration into
roofs, structures with limited load bearing capacity, mobility applications on trailers, RVs, boats and
many more demanding applications.
1.1 Before you start
This manual is intended as a guideline to assist a qualified solar systems integrator in the
design and installation of a solar energy system using Flisom eFlex Series modules. It is
for installation purposes only. Flisom takes no warranty for Installation.
The electrical and mechanical design of a system using Flisom eFlex Series modules
must be completed, and the installation must be approved by a qualified solar systems
integrator. The system integrator and installer are responsible to complete installation in
accordance with the industry’s “Best Practices” methods and all applicable building,
electrical, fire and other codes and regulations in addition to the specific
recommendations stated in this manual. The Flisom eFlex Series modules are not
intended for self-installation by end users.
This manual contains information for the installation of the following modules:
Flisom eFlex Series 0.8m module
Flisom eFlex Series 1.6m module
Flisom eFlex Series 2.3m module
Flisom eFlex Series 3.1m module
1.2 Safety
Danger
Electrical shock
The generated current of a module under illumination is dangerous. Modules should be
connected only, if the system is covered and thus potential and current free. Do not
modify the module, the junction box or the connectors. Make sure that you work with dry
tools and under dry working conditions. Current has a linear behaviour with incoming
radiation and can exceed the mentioned current if the illumination is higher than under
Standard Test conditions (STC). Fix issues in the grounding immediately.
Working on live parts
When working on wiring use safety equipment (insulating gloves, shoes, etc) and
appropriate tools (insulating tools, etc). Make sure that you have grounded the modules
and the mounting construction. Do not use damaged or broken modules. Repair or
replace damaged modules or cables immediately. Do not dismantle modules or the
junction box.
Fig. 1: Flisom eFlex

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
High Voltage
In a PV system the voltage is multiplied by the number of modules in series up to the
stated system voltage. Do not allow the system to exceed the stated system voltage. Be
aware that almost the same voltage stated on the label is present under low light
conditions.
Arcing
PV modules generate direct current when exposed to light. When disconnected a
dangerous arc between the wires may be generated which will not extinguish on its own.
Do not disconnect under load.
Fire Protection
Do not use PV modules in explosive atmospheres. Check the local regulations for fire
protection
Warning
Do not use aggressive solvents or scrubbing materials for cleaning the modules. Do
not use sharps objects. Do not walk on the panels if there is any risk that sharp stones
under the soles, or sharp shoe elements would damage the panel.
The safety instructions for other system components apply. Local standards, building
norms and accident prevention regulations must be followed. Disregarding the
warnings can cause serious injuries or even death.
Keep a minimum distance of 5m1to a burning PV system. Inform the public authorities
about the PV installation.
Attention
Do not concentrate light on the modules. Modules and insulations can be destroyed by
concentrated light.
Do not remove the label or use modules without labels attached by the manufacturer.
Reverse currents may damage modules. To avoid reverse currents, maintain an
equivalent voltage in each parallel connected string of the circuit.
Do not cut or thin eFlex panels. Do not drive screws into the laminate.
1
Source: www.arbeit-und-gesundheit.de/2/2349

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
2 Storage and Transportation
The eFlex modules with applied PV600BT adhesive should be stored in a shaded, dry and clean area
between 15°C - 25°C. When stored correctly the adhesive is usable up to 12 months. (see datasheet
HELIOBOND® PVA 600 BT in section 9.1)
Do not stand or step on the modules or their packaging. Do not accept modules delivered in damaged
packaging. Do not put pressure on the modules. Do not bend the modules to a radius of less than
500mm.
2.1 Packaging
The eFlex modules are packed in cardboard boxes. Box must not be stacked more than 3 Boxes high
eFlex 2x1
eFlex 3x1
eFlex 4x1
Dimension (LxWxH)
80x40x47cm
80x40x47cm
80x40x47cm
Quantity of modules
4
4
4
Weight of a full box
modules without glue
10.4 kg
15.2 kg
19.2 kg
Weight of a full box
modules with glue
7.2 kg
10.8 kg
14,0 kg
Note: Other sizes to be confirmed.
3 Installation
Before installing modules, contact the appropriate authorities to obtain any required building permits
and to determine installation and inspection requirements that apply to the installation. Make sure that
unauthorised people have no access to the construction place. Do not install when it is raining,
snowing, windy or the ground is slippery. Flisom recommends to use personal protective equipment
such as safety gloves, safety googles and safety boots etc. Respect general safety rules.
3.1 Environment
Ambient temperature to install Flisom eFlex Series modules must be between 10°C and 50°C. They
can be operated in the range of -40°C to 85°C. Check if it is necessary to protect animals from the PV
system for example by installing cable guides or fences etc. Depending on the area it is necessary to
protect the modules from standing water, snow or extreme soiling. The described application solution
is limited to a snow and wind load (wind suction) of 2400 N/m2. At consistent solar radiation Flisom PV
modules generate more power at lower temperatures. To improve the energy yield of the plant
increasing cooling or ventilation is an option (see thermal coefficients in the data sheet).
3.2 Handling
Flisom eFlex Series use thin polymeric sheets as backsheet. Hence they can bend by applying forces
while installation (e.g. dropping on the edges or corner). Please handle with care. Store modules in a
dry place. Do not transport modules without packaging. Do not put modules on top of each other to
avoid small scratches (this can accelerate module degradation by environmental factors). Do not use
Junction Box cables as handles to carry or lift the modules. Be cautious when frontsheet is wet since
the surface will be slippery. Do not apply solvents, adhesives, paint or stickers on the frontsheet. Do
not place the modules face-down in direct contact to abrasive surfaces. Do not bend a module over a
sharp edge.

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
3.3 Mechanical
A structural analysis of the roofing structure has to be conducted before installation.
3.4 Module Orientation and Shading
In general, the modules can be mounted either in portrait or in landscape mode, depending on
different limiting factors:
Casting shadow on the panels should be avoided.
Always install the Flisom eFlex Series modules in a location that has good sun exposure
throughout the year. Less power is generated in shaded locations.
Plan the installation in such a way, that the Flisom eFlex Series modules receive the same
amount of direct sunlight within the same string (taking in account their orientation and
shadowing).
If direct shadow on active surface could not be avoided:
Orientation of the shadow on the active surface is crucial: the panel may only be installed as in
fig 2 (Parallel shade). To compare, fig 3 shows a series shade - shading the complete length
of several full cells. This type of casting shadow will negatively affect the power generation of
the module and can cause degradation by overheating.
Negative impact on the system performance from full or partial shading from
rooftop equipment, structural elements of a building and nearby trees, poles power lines or nearby
buildings should be avoided. A professional shading analysis prior to installation is recommended by
Flisom.
Fig. 2: series shade
Fig. 3: parallel shade

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
3.5 Application
The Flisom eFlex modules with self-adhesive PVA 600BT backing are suitable to bond different roof
materials. The compatible roof materials are listed in the table below. All other roof materials have to
be tested before application. It is not possible to glue the eFlex modules with PVA 600BT on PVC
materials. The roofs should have a minimum slope of 2% to avoid standing water on the modules.
roof material category
type
TPO membrane
Carlisle TPO
ask supplier if primer is necessary
Firestone TPO
ask supplier if primer is necessary
GAF TPO
ask supplier if primer is necessary
Stevens TPO
ask supplier if primer is necessary
Johns-Manville TPO
ask supplier if primer is necessary
Rubber membrane
Carlisle EPDM
ask supplier if primer is necessary
Firestone EPDM
ask supplier if primer is necessary
Bitumen
Johns-Manville Granulated Mod-Bit
primer necessary
Garland Smooth Mod-Bit
primer necessary
Garland Granulated Mod-Bit
primer necessary
Garland Coated/Granulated Mod-Bit
primer necessary
Acrylic / Elastomeric
coating
Eternalastic 911 (Tropical Roof)
ask supplier if primer is necessary
Siplast PC-227
ask supplier if primer is necessary
Metal
PVDF coated steel
Galvaneal (zinc-iron alloy)
Galvalume Plus (aluminum-zinc alloy)
Aluminium
preparation work is necessary
contact Flisom for technical support
Others (PV Materials)
LPL Backsheet
PVDF film (Kynar)
Tefzel (ETFE)
Glass
FRP Backsheet (fluorpolymer)

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
3.5.1 Unpacking the Module
The module will be delivered in a carton box (Fig. 4). The long sides of the modules are held by a
carton block with slots. The upper block has to be removed first. Afterwards the modules can be taken
out. The 0.8m module can be handled by 1 person, 1.6m, 2.3m and 3.1m modules need to be handled
by 2 persons. Do not scratch the remaining modules with the one you are removing (the edges are
sharp)
Fig. 4: packaging of Flisom eFlex Series modules
3.5.2 Site Preparation
The roof substrate must be even, clean, dry and free of contaminations. In case of excessive soiling,
the roof has to be cleaned according to the roof manufacturer’s instructions. If a roof is damaged it has
to be replaced before installation of the modules.
To clean a TPO, EPDM or metal roof use IPA (2-propanol isopropyl alcohol) and lint free wipes. The
cleaning should not be more than 30 minutes prior to bonding of PVA 600BT adhesive backed part.
The roof substrate has to be completely dry. If necessary, the drying time can be accelerated with a
hot air dryer.
To clean a modified bitumen roof use a soft broom or leaf blower to remove any loose aggregate. Be
careful and do not remove aggregate still bound to the surface. Do not clean the substrate with
solvents. The modified bitumen has to be coated with a roof coating recommended by membrane
supplier and ADCO/Kömmerling.
Before application of Flisom eFlex modules check, if a primer is required by the roof substrate
manufacturer. Check also that the roughness of the roof substrate is never greater than the thickness
of the adhesive layer. Gluing modules on overlapping membranes should be avoided.

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
FG2P1-4S1P00/1
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This manual applies only on Flisom’s eFlex Series modules
3.5.3 Module arrangement recommendation
All lanes of modules should be positioned parallel and should have enough space between for thermal
expansion (ca. 2 mm). Provide sufficient space between the module lanes to ensure that there are
walk ways, between the modules, so that there is no walking on the eFlex modules. Leave enough
space between module strings for the cable duct. Check that the cable duct is not shading the
modules. Cover the Junction box with the cable duct system for additional UV protection.
3.5.4 Roof Application
According to the ADCO PVA 600BT tape application guideline the protective foil has to be removed
immediately prior to applying. Avoid contaminating the adhesive. The substrate has to be placed within
30 minutes after any primer has been applied. Best application temperature for the PVA 600BT is
10°C to 50°C.
Application Steps:
1. Mark the module position on the roof.
walking way
walking way
Fig. 5: arrangement eFlex

Safety & Installation Guide
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Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules
2. Remove 15cm of the white protective foil on the short side with the junction box
3. Put the module on the marked position and press it on the roof with a rubber roller.

Safety & Installation Guide
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Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules
4. Press firmly the area around the junction box and the junction box on the roof
5. Remove slowly the rest of the white protection foil and press the module simultaneously with a
rubber roller on the roof. Always roll from middle to outside in order to avoid entrapped air.
In the end there should be no gaps between the adhesive and the module or the roofing material.

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules
3.6 Electrical
For elevated areas irradiation can be higher than at STC. Therefore, multiply ISC- and VOC- values with
a factor of 1.25 for the electrical layout of cables, fuses and converters (worst case scenario). For a
serial connection the voltage of a single module is multiplied by the number of modules to calculate
the system voltage. Make sure that you are always within the limits of the maximum system voltage.
Use an adequate device for overcurrent protection (fuse, blocking diode). Maximum Isc multiplied by a
factor of 1.56 to protect a string in parallel configuration.
The maximum number of modules connectable in series is calculated by adding Voc of each single
module multiplied by 1.25 up to the maximum system voltage which you can find on the label.
Do not use PV modules of different power classes or configurations in the same PV system. Flisom
eFlex Series modules use PV4-S connectors. Only use these connectors or compatible connector
types which are authorised from both producers. Use solar cables for outside use (ø 2.5 to 4mm² and
min. 90 °C). Check that no cable is under tensile stress or bended over a sharp edge.
Secure all electrical connections and use stress relief appliances. Do not go below the minimum
bending radius of the cables. Use cable guides to prevent connectors and cables from lying in excess
water, snow or dirt.
The junction box rating is IP65 and IP67 and is not to be opened. The diode cannot be replaced.
For electrical system installation check all relevant codes, guidelines and regulations. The system
connection has to be done by a qualified installer.
3.6.1 Grounding modules
Flisom eFlex modules do not require grounding of the modules. For system grounding check all
relevant codes, guidelines and regulations.
3.6.2 Inverter
Inverters convert direct current into alternating current. Inverters of the latest generation, with MPPT
(Maximum Power Point Tracker), optimize the production, even in situations of weather changes or
variable sunlight.
Suitable inverter configurations are:
Central inverters
String inverters
Multi-String inverters
Inverters on single module level
Not all inverter without transformers can be used. Please contact Flisom for further information.

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules
4 Technical Information
Dimensions eFlex Series
eFlex 0.8m
eFlex 1.6m
eFlex 2.3m
eFlex
3.1m
Length
[mm]
873
1617
2361
3105
Width
[mm]
411
Thickness at module
[mm]
2.2
Thickness at JB
[mm]
21 ± 1
Weight
[kg]
0.8
1.3
1.9
2.4
Weight with adhesive backside
[kg]
1.1
1.8
2.6
3.3
min. bend radius
[mm]
500
Cable length
[mm]
650
Connector Type
PV4-S
Electrical characteristics* at STC
eFlex 0.8m
eFlex 1.6m
eFlex 2.3m
eFlex 3.1m
Nominal power
PMPP
[W]
30
55
85
110
Tolerance of nom. power
ΔP
[W]
-0/+5
-0/+5
-0/+5
-0/+5
Voltage at nom. power
VMPP
[V]
34
35
37
36
Current at nom. power
IMPP
[A]
0.88
1.54
2.29
3.06
Open circuit Voltage
VOC
[V]
46
47
49
48
Short Circuit Current
ISC
[A]
0.97
1.82
2.53
3.30
Max. system voltage
IEC
[V]
1000
Max. series fuse
[A]
10
Application Class
A
A
A
A
Safety Class
II
II
II
II
Thermal characteristics
eFlex 0.8m
eFlex 1.6m
eFlex 2.3m
eFlex 3.1m
Temperature coefficient
VOC
[%/°C]
-0.3
Temperature coefficient
ISC
[%/°C]
0.01
Temperature coefficient
PMPP
[%/°C]
-0.35
Operating temperature
[°C]
-40 –85
There are more power classes available.
* Electrical parameters can change because of improvements of material and semiconductor stack

Safety & Installation Guide
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Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules
5 Operation
According to local regulations it might be necessary to contact authorities before the PV system is
connected to the grid. Also check if this has to be performed by authorized personnel.
6 Inspection and Maintenance
It is recommended to have a visual check on a regular basis (quarterly). Plan check-ups according to
the given environmental and safety conditions and regulations.
Remove dust and dirt (sediments, leaves, pollen, bird droppings, etc.) from the surface.
Do not use aggressive cleaning agents or scrubbing materials for cleaning
Do not use steam blasting for cleaning.
Use soft water to avoid chalk stains
Soft Sponges can be used
Check if connectors and grounding are tight and without corrosion and if the insulation is not
damaged also check for loose mechanical or electrical contacts.
Check if the Junction Box is securely attached and that no deep scratches are penetrating the
frontsheet
7 Disposal
Flisom eFlex series modules must be disposed of in a responsible manner. Please contact your local
supplier or disposal company for further information. For health and safety reasons, Flisom eFlex
Series modules should not be disposed of with household garbage, and must be dealt with in
accordance with local codes and regulations.
8 Disclaimer
Flisom eFlex series modules can change in appearance and electrical parameters because of the
improvements of components or changes of suppliers or minor design modifications. These changes
are typically made without customer notification. Modules with the same classification have the same
functionality and are fully compatible with one another.
Since Flisom has no control of the correct use of the safety and installation guideline, Flisom is not
responsible for injuries, operational errors, damages and expenses caused by incorrect handling,
installation, operation or maintenance.
Flisom is not responsible for licence or patent infringements or other rights of third parties caused by
the usage of the eFlex Series modules. There is no implicit guarantee of licences, patents implicated.
9 Information
Company Address
Flisom AG
Gewerbestrasse 16
8166 Niederhasli
Switzerland
Tel: [phone]
Fax: [phone]
Web: www.flisom.com
Email: [e-mail]

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules
9.1 Third Party Supplier Information

Safety & Installation Guide
Version: 01.12
Valid from 22.10.2018
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This manual applies only on Flisom’s eFlex Series modules