SFC Energy XTREMESOLAR XTR-S290P Series User manual

Photovoltaic
Modules Installation
Manual
Xtremesolar Modules.

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1. INTRODUCTION
Thank you for choosing Xtremesolar Modules powered by SFCE. All Xtremesolar modules are manufactured
by SFCE for the exclusive distribution to market by Sonepar Australia, Solar + Solutions.
This Installation Manual contains essential information for electrical and mechanical installation that you
must know before handling, installing Xtremesolar Modules. This Manual also contains safety information
you need to be familiar with. All the information described in this Manual is the intellectual property of SFCE
and is based on the technologies and experience that have been acquired and accumulated by SFCE.
This Manual does not constitute a warranty, expressed or implied. SFCE does not assume responsibility and
expressly disclaims liability for loss, damage, or expense arising out of or in any way connected with
installation, operation, use or maintenance of Modules. No responsibility is assumed by SFCE for any
infringement of patents or other rights of third parties that may result from use of Modules. SFCE reserves
the right to make changes to the product, specifications or installation manual without prior notice.
Failure to comply with the requirements listed in this manual will invalidate the Limited Warranty for
Modules as provided SFCE at the same time of sale to the direct customer. Additional recommendations are
provided to enhance safety practices and performance results. Please provide a copy of this manual to the
PV system owner for their reference, and inform them of all relevant aspects of safety, operation, and
maintenance.
2. CODES AND REGULATIONS
The mechanical and electrical installation of PV systems should be performed in accordance with all
applicable codes, including electrical codes, building codes and electric utility interconnect requirements.
Such requirements may vary for mounting location, such as building rooftop or motor vehicle applications.
Requirements may also vary with system voltage, and for DC or AC application. Contact local authorities for
governing regulations.
3. GENERAL
Figure 1 Modules components and cross-section of the laminated assembly

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1.
Aluminum Frame
2. Tempering glass
3. Encapsulating EVA
4. Cell
5. Back
sheet
6. Silicone adhesive
7. Junction box
8. Nameplate
9. Cable
10. Connector
11. Moun
ti
ng hole
12. Grounding hole
13. Drainage hole
14. Cell
3.1 Product Identification
Each module has two labels providing the following information:
1. Nameplate: describes the product type; Peak power, Max. power current, Max. power voltage, open
circuit voltage, short circuit current, all as measured under standard test conditions; Certification marks, the
maximum system voltage etc.
2. Barcode: each individual Module has a unique serial number. The serial number has 16 digits. It is
permanently attached to the interior of the Modules and is visible from the top front of the Module. This
barcode is inserted prior to laminating. In addition, you can find a same barcode beside the nameplate.
3.2 Conventional Safety
Xtremesolar Modules are designed to meet the requirements of IEC 61215 and IEC 61730, application class A.
Modules rated for use in this application class may be used in system operating at greater than 50V DC or
240W, where general contact access is anticipated. Modules qualified for safety through IEC 61730-1 and IEC
61730-2 and within this application class are considered to meet the requirements for safety class II
equipments.
When Modules are mounted on rooftops, the roof must have a fire resistant covering suitable for this
application. Rooftop PV systems should only be installed on rooftop that is capable of handling the
additional weighted load of PV system components, including Modules, by a certified building specialist or
engineer and have a formal structure of the complete analysis result.
For your safety, do not attempt to work on a rooftop until safety precautions have been identified and taken
including without limitation fall protection measures, ladders or stairways, and personal protective
equipment.
For your safety, do not install or handle Modules under adverse conditions, including without limitation
strong or gusty winds, and wet or frosted roof surfaces.

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3.3 Electrical Performance Safety
Photovoltaic Modules can produce DC electricity when exposed to light and therefore can produce an
electrical shock or bum. DC voltage of 30 Volts or higher is potentially lethal.
Modules produce voltage even when not connected to an electrical circuit or load. Please use insulated tools
and rubber gloves when working with Modules in sunlight.
Modules have no on/off switch. Modules can be rendered inoperative only by removing them from sunlight,
or by fully covering their front surface with cloth, cardboard, or other completely opaque material, or by
working with Modules face down on a smooth, flat surface.
In order to avoid arcs and electrical shock, please do not disconnect electrical connections under load. Faulty
connections can also result in arcs and electrical shock. So please keep connectors dry and clean, and ensure
that they are in proper working condition. Never insert metal objects into the connector, or modify them in
any way in order to secure an electrical connection.
Also in order to avoid the sand or water vapor entering which may cause the connection and safety issue,
the modules need to be installed and connected to the combiner box once they are taken out from the
carton box; keep the connectors dry and clean during the installing. Note that the pollution from sand, dust
and water will result in arcs and electrical shock of connectors We suggest the customers add rubber
connector covers as the protection method specific to the area with heavy dust seaside with higher salinity
or the serious polluted areas.
Reflection from snow or water can increase sunlight and therefore boost currant and power. In addition,
colder temperatures can substantially increase voltage and power.
If the glass or other material is damaged, please wear personal protection equipment and separated the
Modules from the circuit.
Work only under dry conditions, and use only dry tools. Do not handle Modules when they are wet unless
wearing appropriate protective equipment. If you need to clean the Modules, please follow the cleaning
requirements mentioned in the manual.
3.4 Operating Safety
Do not open packages of Xtremesolar Modules during transportation and storing until they are ready to be
installed.
At the same time please protect the package from damage. Do not make the pallets of Modules falling over
directly.

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Do not exceed the maximum height of pallets to be stacked, as indicated on the pallet packaging.
Store pallets in a ventilated, rain-proof and dry location until the Modules are ready to be unpacked. Please
follow Un-Pack Instructions to unpack the packages of Modules.
Do not lift the Modules by grasping the Module's junction box or electrical cable under any condition.
Do not stand or step on the Modules.
Do not drop the Modules on another Module.
Do not place any heavy objects on the Modules to avoid damaging the glasses.
Be cautious when setting the Modules down on to a surface, especially on the corner of the Modules.
Inappropriate transportation and installation may break the Modules.
Do not attempt to disassemble the Modules, and do not remove any attached nameplates or components
from the Modules.
Do not apply paint or adhesive to the Modules top surface.
To avoid damage to the back sheet, do not scratch or hit the back sheet.
Do not drill holes in the frame. This may compromise the frame strength and cause corrosion of the frame.
Do not scratch the anodized coating of the frame (except for grounding connection). It may cause corrosion
of the frame or compromise the frame strength.
Do not attempt to repair the Modules with damaged glass or back sheet.
3.5 Fire Safety
Consult your local authority for guidelines and requirements for building or structural fire safety.
Xtremesolar Modules have been listed as Class C according to IEC 61730-2 standard.
For roof installations, Modules should be mounted over a fire resistant covering suitable for this application,
with adequate ventilation between the Modules back sheet and the mounting surface.
Roof constructions and installations may affect the fire safety of building. Improper installation may create
hazards in the event of a fire.
In order to maintain the fire class rating, the distance between the Modules frame surface and the roof
surface shall be at least 10 cm.
Use appropriate components such as fuses, circuit breakers and grounding connectors as required by local
authority.
Do not use Modules where flammable gases may be generated.

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4. INSTALLATION CONDITION
4.1 Installation Position and Working Environment
Xtremesolar Modules are intended for use in terrestrial applications only-no for outer space use.
Do not use mirrors or other magnifiers to concentrate sunlight onto the Modules.
Modules must be mounted on appropriate mounting structures positioned on suitable buildings, the ground,
or other structures suitable for Modules (e.g. carports, building facades or PV trackers). Modules must not
be mounted on moving vehicles of any kind.
Modules must not be installed in locations where they could be submerged in water.
The recommended ambient temperature should be within -20° C (-4 °F) to 46° C (115° F). The temperature
limits are defined as the monthly average high and low of the installation site. The limit operating
temperature should be-40° C (-40° F) and 85° C (185° F).
Ensure Modules are not subject to wind or snow loads exceeding the maximum permissible loads.
The Modules should be installed in a location where there's no shading throughout the year. Ensure there's
no obstacle to block light near the installation site.
Lightning protection is recommended for PV systems that are to be installed in locations with high
probability of lightning strikes.
Do not use Modules near equipment or in locations where flammable gasses may be generated or collected.
Modules must not be installed nor operated in areas where hail, snow, sand, dust, air pollution, soot, etc.,
are excessive. Modules must not be sited in locations where aggressive substances such as salt, salt mist,
salt-water, chemically active vapors, acid rain, any other type of corrosive agent, could affect the safety and/
or performance of the Modules.
Please adopt appropriate measures to ensure the performance and safety of the Modules when they are
installed or operated in the areas where produces heavy snow, extremely cold, strong wind ,or near the
island or desert where is prone to produce salt fog, or near water.
Xtremesolar Modules have passed salt mist corrosion resistance test according to IEC 61701 , but galvanic
corrosion can occur between the aluminum frame of the Modules and mounting or grounding hardware if
such hardware is comprised of dissimilar metals. Xtremesolar Modules can be installed in seaside that
distance is 50m to 500m between sea, that only stainless steel and aluminum metal directly contact Modules
in seaside installation to limit corrosion. For the detailed requirements need follow Xtremesolar seaside
installation instructions.

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4.2 Tilt Angle Selection
The tilt angle of the Modules is measured between the surface of the Modules and a horizontal ground
surface. The Modules generates maximum power output when it faces the sun directly.
In the northern hemisphere, Modules should typically face south, and in the southern hemisphere, Modules
should typically face north.
For detailed information on the best installation angle, please refer to standard solar photovoltaic
installation guides or consult a reputable solar installer or systems integrator.
Dust building up on the surface of the Modules can impair with Modules performance. SFCE recommends
installing the Modules with a tilt angle of at least 10 degrees, making it easier for dust to be washed off by
rain.
5. MECHANICAL INSTALLATION
5.1 Conventional Requirement
Ensure that the installation method and supporting system of Modules is strong enough to make the
Modules to able to withstand all the load conditions. The Installer must provide the guarantee. The
installation supporting system must be tested by the third-party organization with the analysis ability of
Static Mechanical, according to the local national or international standards such as DIN1055 or equivalent
standards.
The Modules mounting structure must be made of durable, corrosion-resistant and UV-resistant material.
Modules must be securely attached to the mounting structure.
In regions with heavy snowfall in winter, select the height of the mounting system. So that the lowest edge
of the Modules is not covered by snow for any length of time. In addition, ensure that the lowest portion of
the Modules is placed high enough so that it is not shaded by plants or trees or damaged by flying sand.
When the Modules are supported parallel to the surface of the building wall or roof, a minimum clearance of
10 mm between the Modules frame and the surface of the wall or the roof is required to allow air to
circulate behind the Modules and to prevent wiring damage.
Do not attempt to drill holes in the glass surface and the Modules frames of the Modules.
Before installing Modules on a roof, ensure that the roof construction is suitable. In addition, any roof
penetration required to mount the Modules must be properly sealed to prevent leaks.
Observe the linear thermal expansion of the Modules frames, must ensure that the minimum distance
between neighboring frames is 10 mm.

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Always keep the back sheet of the panel free from foreign objects or structural elements, which could come
into contact with the panel, especially when the panel is under mechanical load.
Modules have been certified for a maximum static load on the back side of 2400 Pa (i.e wind load) and a
maximum static load on the front side of either 2400 Pa or 5400 Pa (i.e. wind and snow load), depending on
the Modules type (please refer to Figure 4 for detailed installation method. )
The mounting method must not result in the direct contact of dissimilar metals with the aluminum frame of
the Modules that will result in galvanic corrosion. Modules can be mounted in landscape or portrait
orientation.
5.2 Installation Methods
Modules can be installed on the frame using mounting holes or clamps. Modules must be installed according
to the following examples and recommendation. If not mounting the Modules according to these
instructions, please in advance consult SF SUNTECH and must be approved by SFCE, otherwise may damage
Modules and void the warranty.
5.2.1 Modules installed with mounting holes
Modules should be bolted to support structures through mounting holes located in the frame's back flanges.
Refer to what is shown in Figure 2 (Mounting Details).
Figure 2 Mounting Details
For your reference, please use the components specified in below;
1.
Bolt
2. Material: Stainless Steel
Size and Length: M8*16mm
3.
Washer
Material: Stainless Steel
Size and Length: M8

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4.
Spring Washer
Material: Stainless Steel
Size and Length: M8
5.
Nut
Material: Stainless Steel
Size and Length: M8
Bolt torque requirement: tighten the screws
5.2.2 Modules Installed with clamp
Modules should be mounted using specialized clamps as shown in Figure 3.
A) Modules should be attached on a supporting structure rail by metal clamps. It is recommended to use the
clamps under the following condition or approved by system installation:
Width: Clamp A no less than 50mm Clamp B no less than 38mm;
Thickness: No less than 3mm;
Material: Aluminum Alloy;
Bolt: M8;
B) Bolt torque requirement: tighten the screws
C) The Modules clamps must not contact the front glass or deform the frame In any way, the contact area of
damp with the front of frame must be smooth, otherwise maybe damage the frame bring about the modules
broken. Avoid shading effects from the Modules clamps. Drainage holes on the Modules frame must not be
closed or obscured by the clamps.
Figure 3: Clamp Details (Units: mm)

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5.2.3 Description of the installation position
The low/normal level of load condition is applicable to the installation in most of environmental conditions:
the maximum static load on the back of the Modules is 2400 Pa (i.e. wind load), and the maximum static
load on the front of the Modules is 2400 Pa (i.e. wind and snow load).
The high level of load condition is applicable to the installation in harsher environmental conditions such as
storm, heavy snow, etc: the maximum static load on the back of the Modules is 2400 Pa (i.e. wind load) and
the maximum static load on the front of the Modules is 5400 Pa (i.e. wind and snow load), depending on the
pressure level that it would endure according to IEC standard.
For the dynamic loads, such as wind, the safety factor needs to be increased by 3 times. It means that the
maximum dynamic load is 800 Pa when the wind speed is less than 130 km/h.
Figure 4: Installation Methods

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6. ELECTRICAL INSTALLATION
6.1 Electrical Property
Rated electrical characteristics such as lsc, Voc and Pmax are measured within + 3 % of Measurement
uncertainty at Standard Test Conditions. Standard Test Conditions: 1000 W/m
㎡
irradiance, 25°C Cell
Temperature and 1.5 Air Mass.
Under normal conditions, photovoltaic Modules may produce higher current and/or voltage than reported
at Standard Test Conditions. Accordingly, the values of short circuit current, lsc, and open circuit voltage, Voc,

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marked on Modules should be multiplied by a factor of 1.25 when determining component voltage ratings,
conductor capacities, fusing sizes, and size of controls connected to the Modules output.
Voltages are additive when Modules are connected directly in series, and Modules currents are additive
when Modules are connected directly in parallel, as illustrated in Figure 5.
Modules with different electrical characteristics must not be connected directly in series.
Figure5 : Electrical diagrams of series and parallel wiring
The maximum number of Modules that can be connected in a series suing must be calculated in accordance
with applicable regulations in such a way that the specified maximum system voltage (The maximum system
voltage of Xtremesolar Modules Is DC 1500V according to the safety appraisal of the IEC61730) of the
Modules and all other electrical DC components will not be exceeded in open-circuit operation at the
temperature expected at the PV system location.
Correction factor for the open-circuit voltage can be calculated based on the following formula: Cvoc-..= 1-
βvocX(25-T). T is the lowest expected ambient temperature at the system location. β(%/℃) is the temperature
coefficient of the selected module Voc (Refer to corresponding datasheet).

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An appropriately rated over-current protection device must be used when the reverse current could exceed
the value of the maximum fuse rating of the Modules. An over-current protection device is required for each
series string if more than two series strings are connected in parallel, as illustrated in Figure 5.
6.2 Cables and wiring
These junction boxes have been designed to be easily interconnected in series for their well-connected cable
and the connector with iP67 protection grade. Each Modules has two single-conductor wires, one positive
and one negative, which are pre-wired inside the junction box. The connectors at the opposite end of these
wires allow easy series connection of adjacent Modules by firmly inserting the positive connector of a
Module into the negative connector of an adjacent Module until the connector is fully seated.
Use field wiring with suitable cross-sectional areas that are approved for use at the maximum short-circuit
current of the Modules. SFCE recommends installers use only sunlight resistant cables qualified for direct
current (DC) wiring in PV systems. The minimum wire size should be 4mm2.
Rating Required Minimum Field Wiring
Testing Standard
Wire size
Temperature Rating
TUV 2PFG 11694 4mm² -40
℃
to + 85
℃
Cables should be fixed to the mounting structure in such a way that mechanical damage
of the cable and/or the Modules is avoided. Do not apply stress to the cables. For fixing,
use appropriate means, such as sunlight resistant cable ties and/or wire management clips
specifically designed to attach to the Modules frame. While the cables are sunlight resistant and waterproof,
where possible, avoid direct sunlight exposure and water immersion of the cables.
6.3 Connectors
Keep connectors dry and clean, and ensure that connector caps are hand tight before connecting the
Modules. Do not attempt to make an electrical connection with wet, soiled, or otherwise faulty connectors.
Avoid sunlight exposure and water immersion of the connectors. Avoid allowing connectors to rest on the
ground.

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Faulty connections can result in arcs and electrical shock. Check that all electrical connections are securely
fastened. Make sure that all locking connectors are fully engaged and locked.
6.4 Bypass Diodes
The junction boxes used with Xtremesolar Modules contain bypass diodes wired in parallel with the PV cell
strings. In the case of partial shading, the diodes bypass the current generated by the non-shaded cells,
thereby limiting Modules heating and performance losses. Bypass diodes are not over-current protection
devices.
Bypass diodes divert current from the cell strings in the event of partial shading. See Figure 7 for a diagram
showing how the cell strings are electrically connected with the diodes.
In the event of a known or suspected diode failure, installers or maintenance providers should contact SFCE.
Never attempt to open the junction box by yourself.
7. GROUNDING
The grounding requirements must be checked in accordance with the applicable regulations and standards
before work is started.
Xtremesolar Modules use an anodic oxidized aluminum frame to resist corrosion. So the frame of Modules
must be connected to the equipment grounding conductor to prevent thunder and static injury.
The grounding device must fully contact with the inside of the aluminum alloy, and must penetrate the
surface of the frame oxidation film.
Please don't drill any additional grounding hole on the frame of the Modules.
For optimal performance, SFCE recommend the DC cathode of the Modules array is connected to ground,
Failure to comply with this requirement may reduce the performance of the system.
The grounding method must not result in direct contact of dissimilar metals with the aluminum frame of the
Modules that will result in galvanic corrosion.
The frame rails have pre-drilled holes marked with a grounding sign. These holes should be used for
grounding purposes and must not be used for mounting the Modules.
The following grounding methods are available.
7.1 Grounding by Using Grounded Clamp

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There is a grounding hole with 4.2 mm diameter on the edge side closer to the middle of the back frame of
the Modules. The middle line of the grounding mark is overlapped with the grounding hole, and the
direction is same as the longer frame.
The grounding between Modules must be approved by qualified electrician. And the grounding device must
be produced by qualified electrical manufacture. The recommended twist torque value is 2.3 N.m. A copper
core in size of 12 AWG can be used as grounding clamp. The copper wire should not be compressed during
the installation.
Figure 6: Installation Methods
Note: The figure above is using TYCO. 1954381-1 (recommended)
7.2. Grounding by Using Unused Mounting Hale
The existing Mounting holes which have not been used can be used for grounding.
A) Direct the grounding damp to the mounting hole on the frame. Thread the grounding clamp and the
frame with grounding bolt.
B) Put the toothed gasket into the other side, than tighten and lock the nut. The recommended torque of
locking the nut is 2.0 N•M-2.2 N•M.
C) Thread the grounding clamp with grounding wire. The materiel and size of grounding wire & should meet
the relevant requirement of the national, regional and local rule, law and standard.

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D) Finish the mounting with tightening the binding bolt of the grounding wire.
Figure 7: Installation Methods
7.3 Additional Third-party Grounding Devices
Xtremesolar Modules can be grounded using third party grounding devices so long as they certified for
grounding Modules and the devices are installed according to the manufacturer's specified instructions.
8. OPERATION AND MAINTENANCE
It is required to perform regular inspection and maintenance of the Modules, especially within warranty
scope. It is the user's responsibility to report to the supplier regarding the damages found within 2 weeks.
8.1 Cleaning
The dust accumulated on the front transparent substrate may reduce the power output, and may even
cause regional hot-spot effect. The industrial effluents or bird drops may be serious, and the extent of the
severity depends on the transparency of the foreign objects. It's usually not dangerous for the accumulated
dust to reduce the sunshine, because the light intensity is still homogeneous and the power reduction is not
usually obvious.
When Modules are working, there should not be environmental influence factors to cast shadows and cover
part or even all of the Modules, such as other Modules, system support, bird drops and a lot of dust, clay or
plant and so on, these may distinctly reduce the power output. SFCE advises that there should be no
obstructed object over the Modules surface at any time.

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The cleaning frequency depends on the accumulated frequency of the fouling. In many instances the front
surfaces of the Modules will be cleaned with the rain, and we can decrease the cleaning frequency. It is
recommended to wipe the glass surface with a wet sponge or soft cloth. Please do not clean the glass with a
cleaning agent which contains acid or alkali.
8.2 Visual Inspection of Modules
Inspect the Modules visually to find whether there are appearance defects, the following need particularly
special attention:
A) Whether the glass is broken;
B) Corrosion along the cells' bus-bar.
The corrosion is caused by the dampness infiltrated into the Modules because that the surface encapsulation
materials are damaged during the installation or transportation.
C) Whether there is burning vestige on the back sheet.
8.3 Inspection of connector and cable
It's recommended to implement the following preventive maintenance every 6 months:
A) Check the encapsulation of the connector with the cable.
B) Check the sealing gel of the junction box to ensure it have no crack or crevice.

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Australian Contact Information:
SFCE.
Shunfeng International Clean Energy Limited.
SF SUNTECH AUSTRALIA PTY LTD
Suite 1203, Level 12, Tower 2, 475 Victoria Avenue,
Chatswood,NSW 2067 Australia
Tel: [phone]
Email: [e-mail]
Website: http://www.sfcegroup.com
Note: SF Suntech is the CEC license holder for
Xtreme Modules in Australia.
Xtremesolar
Exclusively Distributed by:
Sonepar Australia
Solar + Solutions
456 Lower Heidelberg Road
Heidelberg, Victoria 3084
1300 255 410
www.solarsps.com.au
[e-mail]

Date sheet for all module types; XTREMESOLAR
XTR-S290P Series：
Parameters XTR-S245P XTR-S250P XTR-S255P XTR-S260P XTR-S265P XTR-S270P
Peak power Pm(W) 245
0~+3%
250
0~+3%
255
0~+3%
260
0~+3%
265
0~+3%
270
0~+3%
Open circuit voltage Voc(V) 37.50 37.66 37.82 37.98 38.14 38.30
Short circuit current Isc(A) 8.86 8.92 8.98 9.04 9.10 9.16
Max. power voltage Vmp(V) 29.79 29.95 30.29 30.63 30.79 30.95
Max. power current Imp(A) 8.22 8.35 8.42 8.49 8.61 8.42
Practical Module Efficiency ηc（%） 15.0% 15.3% 15.6% 15.9% 16.2% 16.5%
Dimensions(L*W*H) 1650*992*35mm
W
eigh(kg)
17.7
Maximum Series Fuse Rating (A)
15
Max. system voltage(V) 1500VDC
Application Class Class A
Poly-crystalline silicon solar cell 156*156*0.21mm
No. of cells and connections 60 series
No. of bypass diodes 6
Bypass diode rating(A) 15
Bypass diode max. junction temperature(℃) 200
STC Irradiance:1000W/m²,Cell temperature:25℃,AM:1.5

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Date sheet for all module types; XTREMESOLAR
XTR-S290P Series：
Parameters XTR-S275P XTR-S280P XTR-S285P XTR-S290P
Peak power Pm(W) 275
0~+3%
280
0~+3%
285
0~+3%
290
0~+3%
Open circuit voltage Voc(V) 38.46 38.62 38.80 39.05
Short circuit current Isc(A) 9.22 9.28 9.36 9.50
Max. power voltage Vmp(V) 31.29 31.63 31.79 31.95
Max. power current Imp(A) 8.79 8.85 8.97 9.08
Practical Module Efficiency ηc（%） 16.8% 17.1% 17.4% 17.7%
Dimensions(L*W*H) 1650*992*35mm
Weigh(kg) 17.7
Maximum Series Fuse Rating (A) 15
Max. system voltage(V) 1500VDC
Application Class Class A
Poly-crystalline silicon solar cell 156*156*0.21mm
No. of cells and connections 60 series
No. of bypass diodes 6
Bypass diode rating(A) 15
Bypass diode max. junction temperature(℃) 200
STC Irradiance:1000W/m²,Cell temperature:25℃,AM:1.5