Installation and Operation Manual

1 Introduction

With solar modules from Hanwha Q CELLS GmbH ("Qcells"), you can transform the sun's energy into environmentally-friendly solar electricity. To ensure maximum performance, please read these instructions carefully and observe all guidelines. Non-compliance may result in damage and/or physical injury.

This manual provides instructions for the safe installation and operation of crystalline solar modules. Please retain these instructions for the life of the solar modules and ensure they are available to the operator and any subsequent owners or users.

Additional information is available at www.qcells.com.

Intended Use

This manual is valid for Africa, Asia, Europe, Latin America, and South America. It contains information regarding the safe handling, use, installation, mounting, wiring, maintenance, and disposal of quality crystalline solar modules from Qcells.

Symbols and Labels

• ▶️ Procedure: Steps or lists of items.
• ✔️ Check results: Ensure the results of a procedure are checked.
• ? Prohibited: Action is not allowed.
• ⚠️ Note: Indicates possible danger or damage.

Categories of Danger:

• ? Danger: Risk of fatal injury.
• ⚠️ Attention: Risk of serious injury or damage to property.
• ℹ️ Note: Risk of damage to product.

Safety Regulations

Installers and operators are responsible for compliance with all applicable statutory requirements and regulations, including this manual, country-specific regulations, system-specific requirements, international, national, and regional laws governing solar power systems and electrical work, and accident-prevention regulations.

Qualified and Skilled Personnel

Installation, maintenance, and dismantling must be carried out by trained and qualified specialists with approved certificates. Electrical work must be performed by officially certified tradespersons in accordance with applicable national standards, regulations, and local grid operator stipulations.

2 Planning

2.1 Technical Specifications

For detailed electrical data, refer to the actual data sheet for the relevant module available at www.qcells.com.

¹ Test and design load in accordance with IEC 61215:2016, depending on mounting options (see section "2.3 Mounting options").

External Dimensions and Components (Fig. 1)

The Q.PEAK DUO M-G11 series modules have external dimensions of 1692 mm (Length) x 1134 mm (Width) with a frame height of 30 mm. Key components include:

• 4 x Grounding points (Ø 4.5 mm)
• 4 x Mounting slots (DETAIL A)
• 8 x Drainage holes (3 x 6 mm)
• Frame dimensions: 1692 mm x 1134 mm, with specific details for mounting slots and drainage holes indicated.

2.2 Requirements

Installation Site

Please note the following guidelines for the installation site:

• Modules are not explosion-proof and not suitable for explosive environments. Avoid locations with highly flammable gas/vapors (e.g., gas stations).
• Do not install in enclosed spaces.
• Do not install in locations that may be submerged in water (e.g., floodplains).
• Modules are not watertight and should not be used as a substitute for normal roofing.
• Avoid installation near air conditioning systems.
• Do not install above 4000 m (13120 ft) altitude.
• Avoid contact with saline water (e.g., sea spray) and salt aggregation.
• Do not allow chemical substances (e.g., oil, solvents) to contact the panel. Only use Qcells-approved substances.
• Installation on water surfaces (floating or pile-based platforms) is prohibited unless prior written consent from the warrantor is obtained, based on a case-by-case assessment.

The solar modules are designed for:

• Operating temperatures from -40 °C to +85 °C (-40 °F to +185 °F).
• Pull loads up to max. 3,600 Pa and push loads up to max. 5,400 Pa (see section "2.3 Mounting options").
• Installation using a mounting structure for solar modules.

Prevention of Shadowing Effects

For optimal solar irradiation and maximum energy output:

• Install modules to face the sun.
• Avoid shadowing from objects like buildings, chimneys, or trees.
• Avoid partial shading from overhead lines, dirt, or snow.

Mounting Structure Requirements

Modules must be installed on mounting structures that comply with applicable laws and stipulations, and the following:

• Conform to necessary structural requirements.
• Be compliant with local snow and wind loads.
• Be properly fastened to the ground, roof, or façade.
• Ensure forces acting on the module are relayed to the mounting substructure.
• Ensure sufficient rear ventilation of the module.
• Avoid using different metals to prevent contact corrosion.
• Allow for stress-free expansion and contraction due to temperature fluctuations.

Ensure no additional forces (except wind/snow loads) are applied to the module by the mounting system. Torsions, displacements, or vibrations in the mounting system are not allowed. Ensure clamps and mounting frame are compatible.

Clamp System Recommendations

Use customary clamps that satisfy the following requirements:

• Clamp width: ≥ 40 mm.
• Clamp height compliant with a 30 mm frame height.
• Clamp depth: 7-12 mm (for CL clamping options).
• Clamps must not contact the front glass.
• Clamps must not deform the frame.
• Clamps must satisfy structural requirements based on site conditions and applicable standards.
• Use long-term stable clamps that securely affix the module to the mounting frame.

Module Orientation Requirements

Vertical or horizontal installation is permitted. Ensure rain and melting snow can run off freely, preventing water accumulation. Ensure drainage holes in the frame are not covered. Maintain a minimum angle of inclination of 3°. Inclination angles above 75° may be limited by local regulations. Avoid standing water on the module glass.

2.3 Mounting Options

Fig. 2 illustrates installation options for Qcells modules. Dimensions are in mm. Observe maximum test loads and clamping ranges.

Installation with clamps (Linear Mounting System):

• CL1a: Clamps positioned 100-450 mm from edge. Test Load: 5400/3600 Pa. Design Load: 3600/2400 Pa. Safety Factor: 1.5.
• CL1b: Clamps positioned 20-570 mm from edge. Test Load: 2400/2400 Pa. Design Load: 1600/1600 Pa.
• CL2a: Clamps positioned 20-150 mm from edge. Test Load: 2400/3300 Pa. Design Load: 1600/2200 Pa.
• CL2b: Clamps positioned 20-200 mm from edge. Test Load: 2400/2400 Pa. Design Load: 1600/1600 Pa.
• CL3: Clamps positioned 200-350 mm from edge. Test Load: 3600/3600 Pa. Design Load: 2400/2400 Pa. Safety Factor: 1.5.
• CL5: Short side: 20-100 mm, Long side: 300-450 mm. Test Load: 3000/3000 Pa. Design Load: 2000/2000 Pa.

Installation on mounting points (Point Mounting System):

• FB1: Mounting points at 356 mm. Test Load: 5400/3600 Pa. Design Load: 3600/2400 Pa.
• FB2: Mounting points at 356 mm. Test Load: 3000/3000 Pa. Design Load: 2000/2000 Pa.

Installation with insertion profiles:

• IP1, IP2: Not permitted for all configurations. Specific requirements apply for CL1b, CL2a, CL3, FB2, CL5, IP1, IP2 as detailed in the original document.

General Requirements for Mounting Options:

• Loads are related to mechanical stability; mounting system stability must be evaluated by the system supplier.
• Test load values determined with clamp width = 40 mm and clamp depth = 10 mm.
• Installer is responsible for determining location-specific load requirements.
• Ensure connection cables do not run between laminate and mounting rails.
• Avoid sharp objects near the module backside as modules bend under load.
• Ensure junction boxes do not touch the mounting structure or rooftop. Clamps/profiles must not touch the glass.
• Remove or avoid unbalanced loads (e.g., snow overhangs).
• Module frame must be fixed directly on the rail (no spacer).
• Short mounting rails are permissible if they overlap the module less than 210 mm.
• Maintain a minimum clearance of ≥ 35 mm between frame bottom edge and roof top/ballast.
• Minimum support depth of 15 mm on the back side, 10 mm on the long frame side, and 15 mm on the short frame side is required.
• Use M8 corrosion-proof screws and washers (diameter ≥ 15.8 mm) for mounting slots.

2.4 Electrical Layout

Module Selection

Refer to the data sheet for detailed electrical data. For maximum energy yields, avoid mismatches of specified electric current (I_MPP) of more than 5% for modules connected in series.

Safety Factor

During normal operation, modules may generate higher current/voltage than under test conditions. Use a safety factor of 1.25 for calculating voltage (V_OC) and current (I_SC) values, and for sizing control systems.

Follow valid national guidelines for electrical system installation.

Series Connection

Series connection is permitted only up to the maximum system voltage listed in the applicable data sheet. Consider all operating situations, technical norms, and regulations. Ensure the maximum system voltage, including safety margins, is not exceeded. Take the inverter's voltage limit into account when determining the number of modules per string.

Parallel Connection

Modules may be damaged by reverse currents. Ensure the maximum reverse current load capacity indicated in the data sheet is met.

To limit reverse currents, use one of the following options:

1. Limited parallel strings: A maximum of two module strings may be operated in parallel on a single inverter or MPP tracker without further current blocking measures.
2. String fuses: Use overcurrent devices (e.g., gPV-fuses according to IEC 60269-6) in each string. Observe the manufacturer's specifications for the maximum permitted number of strings.

Note: When installing different product versions, the lowest minimum permitted reverse current load capacity applies.

Inverters

Inverters with or without transformers may be used.

3 Installation

3.1 Safety and Transport

Ensure all personnel are aware of and adhere to accident-prevention and safety regulations. Wear clean gloves while working.

? Danger: Risk of fatal injury due to electric shock!

• Do not install damaged modules. Inform your distributor of any damages immediately.

? Packaging Inspection:

• Inspect packaging for damages. Contact the transport company regarding any damage and follow their instructions.
• Follow any instructions on the packaging.

? Warning! Fire Risk!

• Do not install modules indoors.
• Do not install modules on moving objects.

Leave modules in original packaging until installation. Store modules securely in cool, dry rooms. The packaging is not weatherproof.

3.2 Preparation of Installation

⚠️ General Safety:

• Ensure all personnel are aware of and adhere to accident-prevention and safety regulations.
• Wear clean gloves while working.

Handling Modules:

• ℹ️ Note! Module damage may occur! Never lift or move the module with the connection cables or junction box. Carry modules upright and horizontally as shown (⬆️➡️).
• ℹ️ Note! Module damage may occur! Never step on modules. Do not subject modules to mechanical stress. Do not allow objects to fall onto modules.
• ℹ️ Note! Module damage may occur! Do not drop modules.
• ℹ️ Note! Module damage may occur! Only make modifications to the module which have been confirmed in writing by Qcells.
• ℹ️ Note! Module damage may occur! Do not stack modules.
• ℹ️ Note! Module damage may occur! Do not install modules near flammable gas/vapors or close to air conditioning systems.

? Danger! Risk of fatal injury due to electric shock!

• Block off the installation zone. Keep children and unauthorized individuals away from the solar power system.
• Only use dry, insulated tools (?).
• Do not carry out the installation alone.
• Ensure that modules and tools are not subject to moisture or rain at any time during installation.
• Only install undamaged modules and components.
• Do not modify the module (e.g., do not drill additional holes).

⚠️ Warning! Risk of injury due to falling modules!

• Secure modules during installation (?).
• Do not install modules in windy or wet weather.

3.3 Module Installation

Follow these options for module installation:

Option 1: Clamp Installation

• Fasten the module with 4 clamps in the specified clamping range (see Fig. 2, p. 7).
• Tighten clamps according to manufacturer's instructions.
• Maintain an interval of at least 10 mm between modules along the short side and 5 mm along the long side.

Option 2: Mounting Point Installation

• Install the module at the 4 mounting points (see Fig. 2, p. 7).
• Tighten screws according to manufacturer's instructions.
• Maintain an interval of at least 10 mm between modules along the short side and 5 mm along the long side.

Option 3: Insertion Profile Installation

• Install the module using mounting profiles (see Fig. 2, p. 7).

ℹ️ Note! Module damage may occur!

• Do not subject modules to mechanical tension. Max. torsion 10 mm/m.

4 Electrical Connection

4.1 Safety

? Danger! Risk of fatal injury due to electric shock!

When disconnecting a DC circuit, electric arcs can occur, leading to life-threatening injuries. ⚡

• Do NOT unplug the cable when under load.
• Do NOT connect any exposed cable ends.
• Electrical work must only be performed by qualified and skilled personnel (see page 3).

A solar module generates electrical current and voltage even at low illumination. Sparks and electric arcs can result from separating a closed circuit, causing life-threatening injuries, especially when modules are connected in series. The entire open circuit voltage is active even at low solar irradiation.

Follow valid national regulations and safety guidelines for electrical devices and systems. Take all necessary safety precautions. Voltages exceeding 120V require adherence to safety extra-low voltage range.

Carry out work on the inverter and wiring with extreme caution. Ensure modules are disconnected at the inverter before separation. Observe time intervals specified by the inverter manufacturer after switching off the inverter. Ensure plugs cannot be connected unintentionally. Check contacts for safety extra-low voltage before working on them.

? Danger! Risk of fatal injury due to electric shock!

• Never open the junction box.
• Do not remove bypass diodes.
• Never touch live contacts with bare hands.
• Cover connectors with suitable protective caps until installation.

? Danger! Risk of fatal injury due to electric shock!

• Only use dry, insulated tools for electrical work.
• Insulate any exposed cable ends.
• Only connect cables with plugs.

4.2 Electrical Installation Safety

? Danger! Risk of fatal injury due to electric shock!

• Electrical work must only be performed by qualified and skilled personnel (see page 3).
• Ensure correct polarity.

? Danger! Risk of fatal injury due to electric shock!

• Never plug or unplug cables when under load. Modules must not carry any current.
• 1. Switch off the inverter (?).
• 2. Switch off the DC circuit breaker.
• 3. Measure shutdown in DC String (no DC current flow).
• 4. Disconnect plugs using appropriate manufacturer tools.
• 5. When connecting modules, proceed in reverse order.

4.3 Connection of Modules

Use solar cables for connection at the junction box outlet. Only interconnect connectors of the same type and manufacturer. Use minimum 4 mm² copper wires insulated for a minimum of 90 °C for field connections.

ℹ️ Note! Module damage may occur!

• Ensure cabling is not under mechanical stress (comply with bending radius of ≥ 60 mm).
• Ensure cables do not run between module and mounting rail or structure (danger of pinch).

? Danger! Risk of fatal injury due to electric shock!

• Ensure all electrical components are in a proper, dry, and safe condition.
• Do not connect modules with different orientations or angles of inclination in the same string.
• Ensure a tight connection between plugs; plugs should click audibly (?).

To avoid complex cabling, it is often advantageous to rotate some modules 180°. Module orientation can be identified by the serial number and barcode behind the module glass on the side with the negative connection cable.

4.4 After Installation

Ensure all necessary safety and functional tests have been carried out according to applicable standards.

ℹ️ Note! Module damage may occur!

• Ensure plug connections are secured away from any water-channelling surface.

Integrate the system into the existing lightning protection system in accordance with applicable local regulations.

⚠️ Warning! Fire Risk!

• Do not use light concentrators (e.g., mirrors or lenses).

Ensure that the cabling is not exposed/hanging and is protected from dirt, moisture, and mechanical friction.

5 Grounding

Protective Grounding

Modules must be grounded in accordance with local statutory regulations. Integrate the system into the existing lightning protection system according to applicable local regulations.

6 Faults and Defects

? Danger! Risk of fatal injury due to electric shock!

• Do not attempt to fix problems yourself (e.g., glass cracks, damaged cables).
• Please contact an installer or Qcells Technical Customer Service Department (?).

7 Disposal

• Do not disconnect modules yourself.
• Please contact an installer or Qcells Technical Customer Service Department (?).
• Dispose of modules in accordance with local disposal regulations.

8 Maintenance and Cleaning

Qcells solar modules are known for long operating life and minimal maintenance. Dirt and grime are usually washed away by rain. If modules are shaded by dirt or debris (e.g., plants, bird droppings), cleaning is necessary to prevent performance loss.

Maintenance

• The PV system must be inspected regularly by certified personnel.
• Inspection intervals and extent depend on local circumstances (e.g., salt, ammonia content, humidity). The customer/operator must be informed about these.
• Inspections are required after extraordinary events (e.g., storm, hail, high snow loads).
• During inspections, check that components are secure, undamaged, and clean.

Cleaning

⚠️ WARNING! Risk of injury due to hot and live modules!

• Only clean modules that have cooled down.
• Do not carry or wear any electrically conductive parts.

⚠️ WARNING! Risk of falling due to unsecured access!

• Never access the installation area alone or without adequate security precautions.
• Commission a trade specialist.

ℹ️ NOTE! Dust and dirt are abrasive materials!

The situation for each project (type of dirt) must be professionally evaluated. Incorrect cleaning can cause damages (e.g., scratches on glass/AR coating, power loss, delamination, reduced load capability). Damages caused by cleaning are not covered by warranty. Use only tools and agents successfully tested with PV modules.

Isopropyl alcohol (IPA) can be used selectively to remove stubborn dirt and stains within one hour of emergence.

ℹ️ Note! Module damage may occur!

• Do not clean modules with water if there is a risk of frost (❄️ 0°).
• Remove snow and ice carefully without force (e.g., with a very soft broom). Do not scratch off dirt.
• Module cleaning must be done by qualified personnel according to state-of-the-art practices, considering electrical safety, mechanical stability, and chemical suitability. Use no abrasive materials.
• Free the substructure from dirt and debris (leaves, bird nests, etc.).