Qcells Q.PEAK DUO ML-G10.X Series User manual

INSTALLATION AND
OPERATION MANUAL
Q.PEAK DUO ML-G10.X solar module series
Valid for Africa, Europe, LatinAmerica, South America

2 3INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS
With solar modules from Hanwha Q CELLS GmbH (hereafter
referred to as "Q CELLS") you can directly transform the sun’s
limitless energy into environmentally-friendly solar electricity.
In order to ensure the maximum performance of your Q CELLS
solar modules, please read the following instructions carefully
and observe all guidelines. Non-compliance may result in
damage and / or physical injury.
This installation and operation manual (hereafter also referred
to as the “Manual”) provides instructions for the safe installation
and operation of crystalline solar modules.
ÄPlease read these instructions carefully before proceeding
with your installation.
ÄPlease retain these instructions for the life of the solar
modules.
ÄPlease ensure that this Manual is available to the operator
at all times.
ÄThis Manual should be given to all subsequent owners or users
of the solar modules.
ÄAll supplements received from the manufacturer should be
included.
ÄPlease observe all other applicable documents.
ÄIf your questions are not satisfactorily answered in the manual,
please contact your system supplier.
Additional information can be found on our website at www.q-cells.
com.
Intended Use
This manual is valid for Africa, Asia, Europe, Latin America, South
America. These instructions contain information regarding the
safe handling and use of quality crystalline solar modules from
Q CELLS and their installation, mounting, wiring, maintenance
and disposal.
Symbols and Labels
The following symbols and labels are used throughout the Manual
for ease of use.
SYMBOL DESCRIPTION
ÄProcedure with one or more steps.
• Lists of items.
Ensure that when carrying out a procedure,
you check the results of said procedure.
Prohibited.
Beware of possible danger or damage. Cate-
gories:
• Danger: Risk of fatal injury
• Attention: Risk of serious injury or dam-
age to property
• Note: Risk of damage to product
Safety Regulations
In particular the installer as well as the operator of a module
is responsible for compliance with all applicable statutory
requirements and regulations.
ÄUnless otherwise specified by any laws or regulations, the
following stipulations must be upheld at all times during
the installation, operation, and maintenance of the solar
modules:
• This manual.
• Other applicable stipulations (such as country-specific
regulations for pressure equipment, operational safety,
hazardous goods, and environmental protection).
• Regulations and requirements specific to the system.
• Any applicable laws and requirements, in particular inter-
national, country specific, regional laws and stipulations
governing the planning, installation, and operation of solar
power systems and work on roofs.
• Any valid international, national and regional regulations
governing work with direct current, especially those appli-
cable to the installation of electrical devices and systems,
and regulations issued by the respective energy provider
governing the parallel operation of solar power systems.
•
Any international, country specific and regional accident-pre-
vention regulations.
• Other applicable stipulations provided by the relevant
national institutions regarding safety in the installation and
operation of electrical items.
Qualified and Skilled Personnel
Both, the installer and operator are responsible for ensuring that
the installation (including connection to the grid), maintenance
and dismantling are carried out by trained and qualified specialists
with approved training certificates (issued by a state or federal
organization) for the respective specialist trade. Electrical work
may only be performed by an officially certified tradesperson
in accordance with the stipulations applicable in the relevant
country with regard to standard and regulations (in Germany
e.g. DIN standards, VDE regulations) and the stipulations of the
local grid operator and/or energy provider.
1 INTRODUCTION
DOCUMENT REVISION 04
This Manual is valid for Africa, Asia, Europe, Latin America and South America as of September 1st 2021 for Q.PEAK DUO ML-G10, Q.PEAK DUO ML-G10+, Q.PEAK DUO ML-G10.2,
Q.PEAK DUO ML-G10.4, Q.PEAK DUO BLK ML-G10, Q.PEAK DUO BLK ML-G10+, Q.PEAK DUO ML-G10.a, Q.PEAK DUO ML-G10.a+, Q.PEAK DUO BLK ML-G10.a and
Q.PEAK DUO BLK ML-G10.a+ solar modules, and replaces all earlier versions.
This manual is subject to change. The data sheets and customer information valid at the point in time when the relevant module was manufactured apply to the installation, mounting,
and maintenance procedures for the respective solar modules, as far as no updated document is provided.
TABLE OF CONTENTS
1 INTRODUCTION 3
2 PLANNING 5
2.1 TECHNICAL SPECIFICATIONS 5
2.2 REQUIREMENTS 7
2.3 MOUNTING OPTIONS 8
2.4 ELECTRICAL LAYOUT 11
3 INSTALLATION 12
3.1 SAFETY AND TRANSPORT 12
3.2 PREPARATION OF INSTALLATION 14
3.3 MODULE INSTALLATION 15
4 ELECTRICAL CONNECTION 16
4.1 SAFETY 16
4.2 ELECTRICAL INSTALLATION SAFETY 17
4.3 CONNECTION OF MODULES 18
4.4 AFTER INSTALLATION 19
5 GROUNDING 20
6 FAULTS AND DEFECTS 20
7 DISPOSAL 20
8 MAINTENANCE AND CLEANING 21

4 5INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS
Validity
These instructions are only valid for crystalline solar modules from
the company Q CELLS as specified at chapter „2.1 Technical
Specifications“. Q CELLS assumes no liability for damage resulting
from failure to observe these instructions.
ÄPlease observe the wiring and dimensioning of the system.
ÄThe installer of the system is responsible for compliance with all
necessary safety regulations during set-up and installation.
Q CELLS assumes no liability on the basis of these instructions.
Q CELLS is only liable in the context of contractual agreements
or in the context of accepted guarantees. Q CELLS accepts no
other responsibility for the functionality and safety of the modules.
ÄPlease observe the instructions for any other system compo-
nents that may be part of the complete solar power system.
It may be necessary to carry out a structural analysis for the
entire project.
Additional information for the Operator
ÄPlease keep this manual for the entire life of the solar power
system.
ÄPlease contact your system supplier for information concerning
the formal requirements for solar power systems.
ÄPlease be sure to contact the relevant local authorities and
energy providers regarding regulations and permit requirements
prior to installation of the solar power system. Your financial
success depends on the fulfillment of these requirements.
Other applicable documents
In addition to this Manual following technical information are
relevant:
DOCUMENT TYPE
Product data sheet
Packaging and transport information
Fig. 1: External dimensions and components for
Q.PEAK DUO ML-G10, Q.PEAK DUO ML-G10+,
Q.PEAK DUO BLK ML-G10, Q.PEAK DUO BLK ML-G10+,
Q.PEAK DUO ML-G10.a, Q.PEAK DUO ML-G10.a+,
Q.PEAK DUO BLK ML-G10.a and Q.PEAK DUO BLK ML-G10.a+
DETAIL A 16 mm
8.5 mm
24.5 mm
1088 mm
1879 mm
4 × Mounting slots (DETAIL A)
Frame
1045 mm
996 mm
32 mm
8 × Drainage holes
395.5 mm
EN
4 × Grounding points ø 4.5 mm
Label
≥1250 mm
≥1250 mm
For additional information see the relevant datasheet of the module provided at www.q-cells.com.
PRODUCT LINE Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
Type Q.ANTUM DUO Z Q.ANTUM DUO Z
Length 1879mm 1879mm
Width 1045mm 1045 mm
Frame height 32mm 32 mm
Area 1.96m² 1.96m²
Weight 22.0kg 22.0kg
Max. system voltage VSYS 1000V 1000V
Max. reverse current 20A 20 A
Permissible
temperature range –40°C to +85 °C (–40°F to +185°F)
Junction box
protection class IP67 with bypass diode
Connector protection class IP68
Fire rating based on
ANSI / UL 61730 C/ Type 2 C/ Type 2
Max. test load Push / Pull15,400Pa/ 4,000Pa 5,400 Pa/4,000 Pa
Max. design load Push / Pull13,600Pa/ 2,660Pa 3,600 Pa/2,660 Pa
Certificates Quality Controlled PV by TÜV Rheinland; CE-compliant; IEC 61215:2016; IEC 61730:2016;
PV module classification: Class II; UL 61730
1Test and design load in accordance with IEC 61215:2016, depending on mounting options (see section „2.3 Mounting Options“)
1 INTRODUCTION 2 PLANNING
2.1 TECHNICAL SPECIFICATIONS

6 7INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS
Installation Site
Please note the following guidelines that apply to the installation
site:
• Solar modules are not explosion-proof and are not suitable
for use in explosive environments.
ÄDo not operate solar modules near highly flammable gas and
vapors (e.g. gas tanks, gas stations).
ÄDo not install modules in enclosed space.
ÄDo not install modules in locations where they may be sub-
merged in water (e.g. floodplains).
ÄDo not use modules as a substitute for the normal roofing
(e.g. modules are not watertight).
ÄDo not install modules in close proximity to air conditioning
systems.
ÄDo not install modules above 4000 m (13120 ft) altitude
above sea level.
ÄContact with saline water (e.g. spray water from the sea) and
salt aggregation on the modules must be avoided.
ÄDo not bring any chemical substance (e.g. oil, solvent etc.)
into contact with any part of the panel. Only substances,
which are released by Q CELLS, are allowed to be used during
installation, operation and maintenance.
ÄAny installation of modules on surfaces of water is prohibited.
This includes installations on floating as well as pile-based
platforms. Q CELLS may extend the coverage of its warranty
to such installations, based on a case by case assessment of
the system design and location. A prior written consent by
the warrantor is required in any case.
The solar modules are designed for the following applications:
• Operating temperatures from –40°C to +85 °C
(–40°F to +185 °F).
• Pull loads up to max. 4,000Pa and push loads up to max.
5,400Pa (see chapter „Mounting Options“).
• Installation using a mounting structure for solar modules.
Prevention of Shadowing Effects
Optimal solar irradiation leads to maximum energy output:
ÄFor this reason, install the modules so that they face the sun.
ÄAvoid shadowing (due to objects such as buildings, chimneys
or trees).
ÄAvoid partial shading (for example through overhead lines,
dirt, snow).
Mounting Structure Requirements
The Modules shall be installed and operated on mounting structures
that comply with any applicable laws and stipulations as well as
with the following:
• Conform to the necessary structural requirements.
• Compliant with local snow and wind loads.
• Properly fastened to the ground, the roof, or the façade.
• Forces acting on the module are relayed to the mounting
substructure.
• Ensures sufficient rear ventilation of the module.
• Avoid the usage of different metals to prevent contact corrosion.
• Allows for stress-free expansion and contraction due to
temperature fluctuations.
ÄEnsure that no additional forces are applied through the
mounting system into the module except for the wind and
snow loads. Additional forces and moments of torque at the
mounting positions caused by torsions, displacements or
vibrations in the mounting system are not allowed.
ÄEnsure that the clamps and the mounting frame are com-
patible.
Clamp System Recommendations
Use customary clamps that satisfy the following requirements:
• Clamp width: ≥40 mm.
• Clamp height compliant with a 32mm frame height.
• Clamp depth: 7-12mm. (applicable for all CL clamping mounting
options at section „2.3 Mounting Options“)
• Clamps are not in contact with the front glass.
• Clamps do not deform the frame.
• Clamps that satisfy the structural requirements based on the
conditions of the installation site according to the applicable
regulations and technical standards.
• Long-term stable clamps that securely affix the module to
the mounting frame.
Module Orientation Requirements
• Vertical or horizontal installation is permitted.
ÄEnsure that rain and melting snow can run off freely. No water
accumulation.
ÄEnsure that the drainage holes in the frame are not covered.
No sealing.
75°
3°
ÄMaintain the permissible angle of inclination.
• Minimum angle of inclination: 3°
• Inclination angles above 75° may be limited
by local regulations
ÄStanding water on the modules glass needs to
be avoided.
2 PLANNING
2.2 REQUIREMENTS
Fig. 2: External dimensions and components for
Q.PEAK DUO ML-G10.2, Q.PEAK DUO ML-G10.4
and Q.PEAK DUO BLK ML-G10.4
DETAIL A 16 mm
8.5 mm
24.5 mm
1088 mm
1879 mm
4 × Mounting slots (DETAIL A)
Frame
1045 mm
996 mm
32 mm
8 × Drainage holes
395.5 mm
EN
4 × Grounding points ø 4.5 mm
Label
≥1250 mm
≥1250 mm
For additional information see the relevant datasheet of the module provided at www.q-cells.com.
PRODUCT LINE Q.PEAK DUO ML-G10.2 Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10.4
Type Q.ANTUM DUO Z Monocrystalline PERC
Length 1879mm 1879mm
Width 1045mm 1045 mm
Frame height 32mm 32 mm
Area 1.96m² 1.96m²
Weight 22.0kg 22.0kg
Max. system voltage VSYS 1500V 1000V
Max. reverse current 20A 20 A
Permissible
temperature range –40°C to +85 °C (–40°F to +185°F)
Junction box
protection class IP67 with bypass diode
Connector protection class IP68
Fire rating based on ANSI/UL
61730 C/ Type 1 C/ Type 2
Max. test load Push / Pull15,400Pa/ 4,000Pa 5,400 Pa/4,000 Pa
Max. design load Push / Pull13,600Pa/ 2,660Pa 3,600 Pa/2,660 Pa
Certificates Quality Controlled PV by TÜV Rheinland; CE-compliant; IEC 61215:2016; IEC
61730:2016; PV module classification: Class II; UL 61730
1Test and design load in accordance with IEC 61215:2016, depending on mounting options (see section „2.3 Mounting Options“)
2 PLANNING
2.1 TECHNICAL SPECIFICATIONS

8 9INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS
Fig. 3: Installation options for crystalline Q CELLS modules. All dimensions are given in mm. Also observe the maximum
test loads and clamping range as specified on the following page.
The illustrated installation options apply for both horizontal and vertical module orientation.
Module Clamp Subconstruction Mounting profile
2 PLANNING
2.3 MOUNTING OPTIONS
TYPE OF
INSTALLATION
MODULE POINT MOUNTING SYSTEM LINEAR MOUNTING SYSTEM
INSTALLATION
WITH CLAMPS
Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.2
Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
HYBRID
CLAMPING
Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.2
Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
INSTALLATION
ON MOUNTING
POINTS
Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.2
Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
300 - 450
EUROPE
20 - 100
CL5
CL2a
20 - 300
CL2b
20 - 300
CL2a
20 - 300
CL2b
20 - 300
300 - 500
EUROPE
ASIA
CL1a
20 - 650
CL1b
15 - 210
300 - 500
EUROPE
ASIA
CL1a
20 - 650
CL1b
15 - 210
CL3 CL4
240 - 350
200 - 350
0 - 300
0 - 300
CL3 CL4
CL4
0 - 200
ROW
CL3
200 - 350
EN
4 × Mounting
points
395.5
FB2
EN
4 x Mounting
points
395.5
FB1
2 PLANNING
2.3 MOUNTING OPTIONS
TYPE OF
INSTALLATION
MODULE POINT MOUNTING SYSTEM LINEAR MOUNTING SYSTEM
INSTALLATION
WITH INSERTION
PROFILES
Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.2
Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
NOT PERMITTED
IP1 IP2
IP1 IP2
EUROPE
CL6c
20 - 500
CL6d
20 - 250
640 - 1240 640 - 1240
EUROPE
CL6c
20 - 500
CL6d
20 - 250
640 - 1240 640 - 1240

10 11INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS
2 PLANNING
2.3 MOUNTING OPTIONS
ÄThe below mounting options are only possible under certain conditions.
MODULE TYPE MOUNTING
OPTION
POSITION OF
CLAMPS* [MM]
TEST LOAD
PUSH /PULL*** [PA]
DESIGN LOAD
PUSH /PULL*** [PA]
SAFETY
FACTOR
Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.2
Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
CL2a
(with rails)
20 - 100**** 2400/ 2000 1600/ 1330
1.5
20 - 300**** 2400/ 1800 1600/ 1200
CL2b (with-
out rails)
20 - 200 2000/ 2000 1330/ 1330
20 - 300 1800/1800 1200/1200
*
**
***
****
Distance between outer edge of module and middle of the clamp; consider further details below.
Loads according to IEC 61215-2:2016 and UL 61730.
Test procedure according to IEC 61215-2:2016 and UL 61730. Loads for these mounting options do not fulfill the requirements of the standards.
Rails must not be under the junction box.
Specifications
MODULE TYPE MOUNTING
OPTION
POSITION OF
CLAMPS* [MM]
TEST LOAD
PUSH /PULL** [PA]
DESIGN LOAD
PUSH /PULL** [PA]
SAFETY
FACTOR
Q.PEAK DUO ML-G10
Q.PEAK DUO ML-G10+
Q.PEAK DUO ML-G10.2
Q.PEAK DUO ML-G10.4
Q.PEAK DUO BLK ML-G10
Q.PEAK DUO BLK ML-G10+
Q.PEAK DUO ML-G10.a
Q.PEAK DUO ML-G10.a+
Q.PEAK DUO BLK ML-G10.a
Q.PEAK DUO BLK ML-G10.a+
CL1a
130 - 350 5400/ 4000 3600/ 2660
1.5
20 - 500 5400/ 3600 3600/ 2400
20 - 650 2400 /2400 1600 /1600
CL1b 300 - 500 2400/ 2400 1600/ 1600
CL3 240 - 350 4000/4000 2660 /2660
FB1 395.5 5400/ 4000 3600/ 2660
FB2 395.5 4000/ 4000 2660/ 2660
IP1 -
3600/ 3300 2400/ 2200
CL5 short side: 20 - 100
long side: 300 - 450
CL6c
outer clamps:
20 - 500
middle clamps:
640 - 1240****
3600/ 3600 2400/ 2400
CL6d
short side: 20 - 250
long side:
640 - 1240****
4000 /3600 2660/ 2400
MOIUNTING OPTIONS REQUIREMENTS
All ÄThe loads in the table are related to the mechanical stability of the solar modules. The
mechanical stability of the mounting system including clamps has to be evaluated by the system
supplier. The listed test load values have been determined with the following clamp parameters:
clamp width = 40 mm and clamp depth = 10 mm.
ÄThe system installer is responsible for the determination of location-specific load requi-
rements.
ÄEnsure that the connection cables of the junction box do not run between laminate and
mounting rails.
ÄModules bend under load. Therefore, sharp objects (e.g. screws, ballast stones, rail ends, rails
with burrs or sharp corners) must not be placed near the module backside so as not to touch the
laminate under load.
ÄEnsure that the junction boxes do not touch the mounting structure (e.g. shorts rails, ballast, etc.)
or the rooftop under load. Clamps or insertion profiles etc. must not touch the glass (even under
load).
ÄUnbalanced loads (e.g. snow overhangs, snowdrifts) which result in locally significantly
increased loads must be removed or avoided by technical measures.
CL1a, CL2a, CL3,
FB1, FB2 ÄEnsure that module frame is fixed directly on the rail of the substructure (no spacer allowed
between the module and substructure).
CL1a ÄWith push test loads of 5400 Pa: The clamp position is variable in the given range but the
distance between the clamps along the long side of the module (span) must not be larger than
1400 mm.
CL1b ÄUsing of short mounting rails are permissible, if they overlap under the module less than 210 mm.
Minimum clearance between frame bottom edge and roof top must be ≥ 35 mm.
CL1b, CL2b, CL3,
FB2, CL6c, CL6d ÄA minimum support depth of 15 mm is required on the back side of the module.
CL5 ÄThe minimum required support depth on the module backside is 10 mm on long frame side and
15 mm on short frame side.
IP1 ÄEnsure minimum support depth of 15 mm on the backside and 10 mm on the front side of the
module.
FB1, FB2 ÄUse M8 corrosion-proof screws and washers (diameter ≥ 15.8 mm) for mounting slots (Detail A,
Fig.1). Mounting screws and washers should have the same material properties.
CL6c, CL6d ÄUse of short mounting rails under the modules are permissible, if they do not touch the laminate
under load.
2 PLANNING
2.3 MOUNTING OPTIONS

12 13INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS 13
Module Selection
For detailed key electrical data, please refer to the actual data sheet
referring to the relevant Module (available at www.q-cells.com).
ÄFor maximum energy yields, mismatches of specified electric
current (IMPP) of more than 5% should be avoided for all modules
connected in series.
Safety Factor
During normal operation, a module may generate a greater current
and/ or higher voltage than that determined under standardized
test conditions. Please use a safety factor of 1.25 for the following:
• Calculating the voltage measurement values (VOC) of components
• Calculating the current measurement values (ISC) of conductors
• Sizing of control systems connected to the outlets of the solar
modules
ÄPlease follow the valid national guidelines for the installation
of electrical systems.
Series Connection
Connection of modules in series is only permitted up to the
maximum system voltage as listed in the applicable data sheet
of all the relevant modules to be installed.
ÄTake into account all possible operating situations and all
relevant technical norms and regulations when designing the
system. It has to be ensured that the maximum system voltage,
including all necessary safety margins, is not exceeded.
ÄTake the voltage limit of the inverter into account when
determining the maximum number of modules in the string.
Parallel Connection
Modules may be damaged by the occurrence of reverse currents
(caused by module defects, ground leaks, or defective insulation).
ÄEnsure that the maximum reverse current load capacity
indicated in the data sheet is met.
In order to limit reverse currents that may occur, we recommend
using the following safety options:
1) Layout with a limited number of
parallel connected strings:
Without undertaking further current blocking measures, a maximum
of two module strings may be operated in parallel on a single
inverter or MPP tracker.
2) Layout with string fuses:
Use overcurrent devices (e.g. fuses) according to the relevant
standards in each string. Use gPV-fuses according to IEC 60269-6.
Observe the maximum permitted number of strings as indicated
in the specifications provided by the respective string fuse
manufacturer and the technical guidelines.
NOTE!
When installing different product versions, the lowest minimum
permitted reverse current load capacity applies.
Inverters
Inverters with or without transformers may be used.
2 PLANNING
2.4 ELECTRICAL LAYOUT
3 INSTALLATION
3.1 SAFETY AND TRANSPORT
ÄLeave modules in their original packaging until
installation.
ÄStore the modules securely in cool and dry
rooms. The packaging is not weatherproof.
ÄInspect the packaging for damages.
ÄContact the transport company regarding
any damage to the packaging and follow their
instructions.
ÄFollow any instructions on the packaging.
ÄEnsure that all personnel are aware of and
adhere to accident-prevention and safety
regulations.
ÄWhile working wear clean gloves.
§
GB
§
I
§
D
Danger! Risk of fatal injury due to electric
shock!
ÄDo not install damaged modules.
ÄInform your distributor of any damages
immediately.
Warning! Fire Risk!
ÄDo not install modules indoors.
ÄDo not install modules on moving objects.

14 15INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS14 15
Note! Module damage may occur!
ÄDo not stack modules.
Note! Module damage may occur!
ÄDo not install modules near flammable
gas/ vapors.
ÄDo not install modules in close proximity to air
conditioning systems.
Note! Module damage may occur!
ÄDo not drop modules.
Note! Module damage may occur!
ÄOnly make modifications to the module which
have been confirmed in writing by Q CELLS.
confirmation
letter
Note! Module damage may occur!
ÄNever lift or move the module with the
connection cables or junction box.
ÄCarry modules upright and horizontally as
shown.
Note! Module damage may occur!
ÄNever step on modules.
ÄDo not subject modules to any mechanical
stress.
ÄDo not allow any objects to fall onto modules
3 INSTALLATION
3.1 SAFETY AND TRANSPORT
Danger! Risk of fatal injury due to electric
shock!
ÄBlock off the installation zone.
ÄKeep children and unauthorized individuals
away from the solar power system.
Danger! Risk of fatal injury due to electric
shock!
ÄEnsure that modules and tools are not subject
to moisture or rain at any time during instal-
lation.
Warning! Risk of injury due to falling
modules!
ÄSecure modules during installation.
ÄDo not install modules in windy or wet
weather.
Danger! Risk of fatal injury due to electric
shock!
ÄOnly use dry, insulated tools.
ÄDo not carry out the installation alone.
• Only install undamaged modules and
components.
ÄDo not modify the module
(e.g. do not drill any additional holes).
3 INSTALLATION
3.2 PREPARATION OF INSTALLATION

16 17INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS 1716
Option 1:
ÄFasten the module with 4 clamps in the
specified clamping range,
see Fig. 3, p. 8.
ÄTighten clamps according to
manufacturer’s instructions.
ÄMaintain an interval of at least 10mm between
two modules along the short side and 5mm
along the long side.
10 mm
5 mm
EU
Note! Module damage may occur!
ÄDo not subject modules to mechanical tension.
Max. torsion 10mm/m.
Option 2:
ÄInstall the module at the 4 mounting points,
see Fig. 3, p. 8.
ÄTighten screws according to
manufacturer’s instructions.
3 INSTALLATION
3.3 MODULE INSTALLATION
Option 3:
ÄInstall the module using mounting profiles,
see Fig. 2, p. 7.
DANGER!
Risk of fatal injury due to electric shock!
When disconnecting an electric circuit carrying direct current,
electric arcs can occur that may result in life-threatening injuries.
ÄDo NOT unplug the cable when under load.
ÄDo NOT connect any exposed cable ends.
ÄElectrical work may only be performed by qualified and
skilled personnel (see page 3).
A solar module generates electrical current and voltage even
at a low intensity of illumination. Sparks and electric arcs may
result from the separation of a closed circuit. These can result
in life-threatening injuries. The danger increases when several
modules are connected in series.
ÄPlease be aware of that the entire open circuit voltage is
active even at low levels of solar irradiation.
ÄPlease follow the valid national regulations and safety guidelines
for the installation of electrical devices and systems.
ÄPlease make sure to take all necessary safety precautions.
With module or phase voltages of more than 120 V, the safety
extra-low voltage range is exceeded.
ÄCarry out work on the inverter and the wiring with extreme
caution.
ÄEnsure that the modules are disconnected at the inverter
prior to separation.
ÄBe sure to observe the time intervals specified by the inverter
manufacturer after switching off the inverter.
ÄMake sure that the plugs can not be connected unintentionally.
ÄBefore working on the contacts, check them for safety extra-low
voltage.
Danger! Risk of fatal injury due to electric
shock!
ÄNever open the junction box.
ÄDo not remove bypass diodes.
Danger! Risk of fatal injury due to electric
shock!
ÄNever touch live contacts with bare hands.
ÄCover connectors by suitable protective caps
until installation.
Danger! Risk of fatal injury due to electric
shock!
ÄInsulate any exposed cable ends.
ÄOnly connect cables with plugs.
Danger! Risk of fatal injury due to electric
shock!
ÄOnly use dry, insulated tools for electrical
work.
4 ELECTRICAL CONNECTION
4.1 SAFETY

18 19INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS 1918
Danger! Risk of fatal injury due to electric
shock!
ÄBe sure to maintain the time intervals as
specified by the inverter manufacturer between
switching off the inverter and beginning any
further work.
Danger! Risk of fatal injury due to electric
shock!
ÄNever plug or unplug the cable when under
load. Modules must not carry any current.
1. Switch off the inverter.
OFF
EN
4 ELECTRICAL CONNECTION
4.2 ELECTRICAL INSTALLATION SAFETY
2. Switch off the DC circuit breaker.
3. Measure shutdown in DC String.
(no DC current flow).
4. Disconnect plugs by the use of appropriate
and qualified tools of the manufacturer.
5. When connecting the modules proceed in
reverse order.
Danger! Risk of fatal injury due to electric
shock!
ÄElectrical work may only be performed by
qualified and skilled personnel (see page 3).
ÄEnsure correct polarity.
ÄUse solar cables for the connection at the
junction box outlet.
ÄOnly interconnect connectors of the same type and
manufacturer.
ÄUse minimum 4mm2copper wires insulated for
a minimum of 90°C for field connections.
Note! Module damage may occur!
ÄEnsure that the cabling is not under mechanical
stress (Comply with bending radius of ≥60mm).
ÄEnsure that the cables do not run between module
and mounting rail or structure (danger of pinch).
ÄDo not connect modules with different
orientations or angles of inclination in the same
string.
ÄEnsure for a tight connection between the
plugs. Plugs click together audibly.
EN
click
Danger! Risk of fatal injury due to electric
shock!
ÄEnsure that all electrical components are in a
proper, dry, and safe condition.
ÄTo avoid complex cabling arrangements, it is
often advantageous to rotate some modules
180°.
ÄModule orientation can clearly be identified
from the front side by the serial number and
barcode labelled behind the module glass on
the side with negative connection cable.
EN
Inverter
180° 180°
SOLAR
4 ELECTRICAL CONNECTION
4.3 CONNECTION OF MODULES

20 21INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS20
ÄEnsure that all necessary safety and functional
tests have been carried out according to
applicable standards.
Note! Module damage may occur!
ÄEnsure that the plug connections are secured
away from any water-channelling surface.
ÄIntegrate the system into the existing lightening
protection system in accordance with the
applicable local regulations.
Warning! Fire Risk!
ÄDo not use light concentrators (e.g. mirrors or
lenses).
ÄEnsure that the cabling is not exposed and/ or
hanging and is protected from dirt, moisture
and mechanical friction.
4 ELECTRICAL CONNECTION
4.4 AFTER INSTALLATION
Protective Grounding
ÄThe modules must be grounded in accordance with the local
statutory regulations.
DANGER!
Risk of fatal injury due to electric shock!
ÄDo not attempt to fix any problems yourself (e.g., glass cracks,
damaged cables).
ÄPlease contact an installer or Q CELLS Technical Customer
Service Department.
ÄDo not disconnect modules by yourself.
ÄPlease contact an installer or Q CELLS Technical Customer
Service Department.
ÄDispose of modules in accordance with the local disposal
regulations.
5 GROUNDING 6 FAULTS AND DEFECTS
7 DISPOSAL

22 23INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS INSTALLATION AND OPERATION MANUAL SOLAR MODULES Q.PEAK DUO ML-G10.X – Q CELLS22
Q CELLS solar modules are known for a long operating life and
minimal maintenance effort and expense. Dirt and grime are
usually washed away by rain. If the module is fully or partially
shaded by dirt or debris (e.g., plants, bird droppings), it needs
to be cleaned to prevent a loss of performance.
Maintenance
ÄThe PV system has to be inspected regularly by certified
personnel
ÄThe time intervals and extent of the inspection can depend on
local circumstances (e.g. salt, ammonia content in the air, high
humidity etc.). The customer /operator must inform himself
about time intervals and extend of necessary inspections.
ÄInspections have to be performed especially after extraordinary
events (e.g. storm, hail, high snow loads etc.)
ÄDuring the inspections it has to be checked that the compo-
nents are secure, undamaged and clean
Cleaning
WARNING!
Risk of injury due to hot and live modules!
ÄOnly clean modules that have cooled down.
ÄDo not carry or wear any electrically conductive parts.
WARNING!
Risk of falling due to unsecured access!
ÄNever access the installation area alone or without taking
adequate security precautions.
ÄPlease commission a trade specialist.
NOTE!
Module surface damage may occur!
ÄRemove snow and ice carefully without force (e.g. with a
very soft broom).
ÄDo not scratch off dirt.
ÄModule cleaning has to be done by qualified personnel
according to the state of the art and taking into account all
relevant safety issues and general product properties, e.g.,
but not restricted to:
• electrical safety
• mechanical stability (load limits depending on the actual
mounting options)
• chemical suitability (no effect to any of the module's
components, e.g. cable, connector, silicone)
• no abrasive materials.
NOTE!
Dust and dirt are abrasive materials!
Note! Module damage may occur!
ÄDo not clean modules with water if there is a
risk of frost.
0°
8 MAINTENANCE AND CLEANING
ÄFree the substructure from any dirt and debris
(leaves, bird nests, etc.).
ÄThe situation for each individual project (or type of dirt) must
always be professionally evaluated.
ÄWrong cleaning may cause damages such as, but not limited
to, damages to the glass surface (e.g. scratches) and AR
coating, power loss, delamination, loss of frame-to-laminate
bond, reduced snow and wind load capability etc.
Apart from the above, each customer is free to choose the method
of cleaning. However, possible damages, caused by the cleaning
or related to the cleaning tools or agents shall not be covered
by the module's Product and Performance Warranty. Therefore
it is recommended to use only the tools and agents which have
already been successfully tested and used with PV modules, to
prevent possible damage.
Isopropyl alcohol (IPA) can be used selectively to remove
stubborn dirt and stains within one hour after emergence.

HANWHA Q CELLS GMBH
OT Thalheim
Sonnenallee 17 – 21
06766 Bitterfeld-Wolfen
Germany
TEL [phone] –23222
FAX [phone]– 23000
EMAIL [email protected]
WEB www.q-cells.com Subject to change without notice. ©Q CELLS Installation manual solar modules Q.PEAK DUO ML-G10.X_2021-09_Rev04_EN