Q CELLS Q.PRO L-G2 Installation And Operation Manual

INSTALLATION AND
OPERATION MANUAL

Q.PRO L-G2

Valid for North America

TABLE OF CONTENTS

1 INTRODUCTION

1 INTRODUCTION 3

2 PLANNING 5

2.1 Technical specications 5

2.2 Requirements 6

2.3 Mounting options 7

2.4 Electrical layout 9

3 INSTALLATION 10

3.1 Safety and transport 10

3.2 Preparation of installation 12

3.3 Module installation 13

4 ELECTRICAL CONNECTION 14

4.1 Safety 14

4.2 Electrical installation safety 15

4.3 Connection of modules 16

4.4 After installation 17

5 GROUNDING 18

6 FAULTS AND DEFECTS 19

7 DISPOSAL 19

8 MAINTENANCE AND CLEANING 20

With solar modules from Hanwha Q CELLS GmbH (hereafter referred to
as “Hanwha 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 Hanwha Q CELLS
solar modules, please read the following instructions care-fully and
observe all guidelines. Non-compliance may result in damage and/or
physical injury.

This installation manual provides instructions for the safe installa­tion of crystalline solar modules.

Ä Please read these instructions carefully before proceeding with

your installation.

Ä Please retain these instructions for the life of the solar modules.
Ä Please ensure that this installation manual is available to the

operator at all times.

Ä

This installation manual should be given to all subsequent owners

or users of the solar modules.

Ä All supplements received from the manufacturer should be

included.

Ä Please observe all other applicable documents.

Intended Use

This manual is valid for North America. These instructions
contain information regarding the safe handling and use of quality
crystalline solar modules from Hanwha Q CELLS and for their
installation, mounting, wiring, and maintenance.

Symbols and Labels

The following symbols and labels are used throughout the
installation manual for ease of use.

SYMBOL DESCRIPTION

Ä

• Lists of items

Procedure with one or more steps.

Ensure that when carrying out a procedure, you
check the results of said procedure.

Units

Where both metric and U.S. units (for example inches) are shown,

metric units are denitive. References to “Data Sheet” or “Module
Data Sheet” refer to the Module Data Sheet applicable to the

module being used.

Safety Regulations

The solar module operator is responsible for compliance with all
applicable statutory requirements and regulations.

Ä The following regulations and standards must be upheld at all

times during the installation, operation, and maintenance of the
solar modules:

• Installation and Operation Manual.

•

Other applicable documents (such as country-specic regulations

for pressure equipment, operational safety, hazardous goods,
and environmental protection).

• Regulations and requirements specic to the system.

•

Applicable country-specic laws, codes (NEC, CEC), standards

(NRTL, OSHA), and provisions governing the planning, instal­lation, and operation of solar power systems and work on roofs.

•

Valid international, national, and regional regulations governing
work with direct current, especially those applicable to the
installation of electrical devices and systems, and regulations
issued by the respective energy provider governing the parallel
operation of solar power systems.

• Accident-prevention regulations.

Qualied & Skilled Personnel

Both, the operator and installer are responsible for ensuring that
installation, maintenance, connection to the grid, and dismantling

are carried out by trained and qualied specialists with approved
training certicates (issued by a state or federal organization) for

the respective specialist trade.

Electrical work may only be performed by an ofcially certied

tradesperson in accordance with the applicable UL standards,
NEC regulations (USA) or CEC regulations (Canada) as well as
accident-prevention regulations, and the regulations of the local
energy provider.

Prohibited.

Beware of possible danger or damage. Categories:

• Danger: Risk of fatal injury

• Attention: Risk of serious injury or damage

to property

• Note: Risk of damage to product

DOCUMENT REVISION 02

This Installation Manual is a release for North America as of June 2015 for Q.PRO L-G2 solar modules, and replaces all earlier versions. Subject to technical changes without notice.

DISCLAIMER

Technical parameters and the design are 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.

2 3INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP. INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

1 INTRODUCTION

Q.PRO L-G2.0.1 FOR DATA SHEETS

≥

47.2'' (≥ 1200 mm)

38.7''
(982 mm)

51.5'' (1308 mm)

76.69'' (1948 mm)

1.57" (40 mm)

Junction bo×

Product label

4 × Mounting points (DETAIL A)

8 × Drainage holes 0.12 × 0.24" (3 × 6 mm)

Cable with
connectors

Frame

6 × Grounding points, Ø 0.18'' (4.5 mm)

DETAIL A

0.63" (16 mm)

0.33" (8.5 mm)

1.00" (25.5 mm)

36.6''
(931 mm)

4 × Drainage holes 0.37 × 0.37" (9.3 × 9.3 mm)

5.91''

(150 mm)

2 PLANNING

2.1 Technical specifications

Validity

These instructions are only valid for crystalline solar modules
from the company Hanwha Q CELLS. Hanwha Q CELLS assumes
no liability for damage resulting from failure to observe these
instructions.

Ä Please observe the wiring and dimensioning of the system.
Ä The installer of the system is responsible for compliance with all

necessary safety regulations during set-up and installation.
Hanwha Q CELLS assumes no liability on the basis of these
instructions. Hanwha Q CELLS is only liable in the context of
contractual agreements or in the context of accepted guarantees.
Hanwha Q CELLS accepts no other responsibility for the
functionality and safety of the modules.

Ä

Please observe the instructions for any other system components

that may be part of the complete solar power system. It may be

necessary to carry out a structural analysis for the entire project.

Ä If your questions are not satisfactorily answered in the

manual, please contact your system supplier.

• The information contained within this document is subject to

change without notice.

Additional information can be found on our website at
www.q-cells.com.

Information for the Operator

Ä Please keep this manual for the entire life of the solar power

system.

Ä Please contact your system supplier for information concerning

the formal requirements for solar power systems.

Ä

Please 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 nancial success

depends on the fulllment of these requirements.

Additional information can be found in the currently valid data sheets available at www.q-cells.com.

PRODUCT LINE Q.PRO L-G2

Type Polycrystalline

Length [in] 76.69 (1948 mm)

Width [in] 38.7 (982 mm)

Frame height [in] 1.57 (40 mm)

Weight [lb] 48.72 (22.1 kg)

Max. system voltage V

Max. reverse current [A] 20

Permissible temperature range
[°F (°C)]

Junction box protection class IP67 with bypass diodes

Connector protection class IP68

Fire protection class C / Type 1

Wind / Snow load

Max. Load (UL) [lbs/ft²] 75 (3600 Pa)

Load Rating (UL) [lbs/ft²] 55.6 (2666 Pa)

Certicates CE-compliant; IEC 61215 (Ed.2) see page 8; IEC 61730 (Ed.1) Application Class A; UL 1703

1

tested according to IEC 61215

[V] 1000

SYS

–40 to +185 (–40 to +85)

1

[lbs/ft2] 84 (4000 Pa) / 112 (5400 Pa)

Other applicable documents

This installation manual is only valid in combination with the
following technical information.

DOCUMENT TYPE

Product data sheet

Packaging and transport information

4 5INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP. INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

Fig. 1: External dimensions (inch and mm) and components for Q.PRO L-G2

2 PLANNING

2.2 Requirements

2 PLANNING

2.3 Mounting options

Installation Site

Please note the following guidelines that apply to the installation
site:

•

The modules have been tested according to IEC 61215 for operation

in a temperate climate.

• Solar modules are not explosion-proof.

Ä Do not operate solar modules near highly ammable gas and

vapors (e.g. gas tanks, gas stations).

Ä Do not install modules in enclosed space.
Ä

Do not install modules in locations where they may be submerged

in water for lengthy periods.

Ä Do not use modules as a substitute for the normal roong (e.g.

modules are not rainproof).

Prevention of Shadowing Effects

Optimal solar irradiation leads to maximum energy output:

Ä For this reason, install the modules so that they face the sun.
Ä Avoid shadowing (due to objects such as buildings, chimneys or

trees).

Ä Avoid partial shading (for example through overhead lines, dirt,

snow).

Limitations

The solar modules are designed for the following applications:

• Operating temperatures from –40 °C to +85 °C (–40 °F to

+185 °F).

•

Wind loads and snow loads according allowed static load require-

ments (as tested according to IEC 61215).

• Installation using a mounting frame for solar modules.

• Long-term stable clamps that securely afx the module to the

mounting frame.

Module Orientation Requirements

• Vertical or horizontal installation is permitted.

Ä Ensure that rain and melting snow can run off freely. No water

accumulation.

Ä Ensure that the drainage holes in the frame are not covered. No

sealing.

Ä Maintain the permissible angle of inclination.

• Minimum angle of inclination: 3°

• Maximum angle of inclination: 80°

• > 20°: self-cleaning effect.

• Follow the directions for installation angles <

5° (“Grounding”, p. 18)

Fig. 2: Installation options for crystalline Q CELLS modules. All dimensions are given in inch (mm in brackets).

Also observe the allowed static loads and clamping range as specied on the following page.
The illustrated installation options apply for both horizontal and vertical module orientation.

Module Clamp Subconstruction Mounting prole

TYPE OF

POINT MOUNTING SYSTEM LINEAR MOUNTING SYSTEM

INSTALLATION

INSTALLATION WITH
CLAMPS

0 – 19.69
(0 – 500)

CL1

INSTALLATION ON
MOUNTING POINTS

12.6
(320)

4 x mounting
slots

Mounting Frame Requirements

Requirements for the mounting frame:

• Conforms 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 sufcient rear ventilation of the module.

• Guarantees long-term stability.

• Avoid of different metals to prevent contact corrosions.

•

Allows for stress-free expansion and contraction due to temperature

uctuations.

Ä Ensure that no mechanical stresses (e.g., caused by vibrations,

twisting, or expansion) are generated on the module.

Ä Ensure that the clamps and the mounting frame are compatible.

Clamp System Requirements

Use customary clamps that comply with the requirements:

• Clamp width: ≥ 1.50 in (38 mm).

• Clamp height compliant with a 1.57 in (40 mm) frame height.

• Clamp depth: 0.20 – 0.47 in (5–12 mm).

• Clamps are not in contact with the front glass.

• Clamps do not deform the frame.

•

Clamps that satisfy the structural requirements of the installation

site.

• A module with min. 47.24 in (1,200 mm) long

cable in portrait orientation can be wired as a

“2nd next neighbor”

“2nd next neighbor” - Wiring without a return

cable.

 Standard wiring with a return cable

1

Inverter

2

Inverter

INSTALLATION WITH
INSERTION
PROFILES

FB1

NOT PERMITTED

IP1 IP2

6 7INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP. INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

2 PLANNING

2.3 Mounting options

2 PLANNING

2.4 Electrical layout

Specications

MODULE TYPE MOUNTING OPTION CLAMPING RANGE

Q.PRO L-G2 CL1 (4 point clamping on

long side)

IP1 (Slide-in / long mo­dule side)

IP2 (Slide-in / short
module side)

FB1 5400/4000

1

Distance between outer edge of module and middle of the clamp.

DISTANCE BETWEEN MODULES

Ä Maintain an interval of at least 0.39 in (10 mm) between two modules along the short side

Ä Maintain an interval of at least 0.20 in (5 mm) between two modules along the long side

MOUNTING OPTIONS CL1

Ä Ensure, that the subconstruction does not run below the junction box.

Ä Ensure, that the connection cables of the junction box don‘t run between laminate and substructure.

MOUNTING OPTIONS FB1

Ä Use M8 corrosion-proof screws and washers (min. diameter 0.63 in (16 mm)).

Ä Ensure, that the connection cables of the junction box don‘t run between laminate and substructure.

• The fastening points are located on the backside of the module frame.

0 - 9.84 (0 - 250) 2400/2400

9.88 - 19.69 (251 - 500) 5400/4000

1

TEST LOAD ACC. IEC 61215 PUSH/PULL [PA]

5400/2400

2400/2400

Module Selection

For detailed key electrical data, please refer to the product data
sheet for the respective product.

Ä Only connect modules of the same type and the same power

class.

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 (V

• Calculating the current measurement values (I

• Sizing of control systems connected to the outlets of the solar

modules

Ä Please follow the valid national guidelines for the installation

of electrical systems (refer to section 690-8 of the NEC for an
additional multiplying factor of 125 percent [80 percent derating]
which may be applicable).

) of components

oc

) of conductors

SC

Series Connection

Connection of modules in series is only permitted up to the
maximum system voltage as listed in the applicable data sheet.

Ä

Take into account all possible operating situations and all relevant
technical norms and regulations when designing the system.
This will ensure that the maximum system voltage, including all
necessary safety margins, is not exceeded.

Ä

Take 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).

Ä

Ensure that the maximum reverse current load capacity indicated

in the data sheet is observed.
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 an inverter or
MPP tracker.

2) Layout with string fuses :

Place fuses for each string of modules at the plus and minus ends.
Observe the maximum permitted number of strings as indicated
in the specications 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.

8 9INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP. INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

3 INSTALLATION

3.1 Safety and transport

3 INSTALLATION

3.1 Safety and transport

Ä Ensure that all personnel are aware of and adhere

to accident-prevention and safety regulations.

Ä While working wear clean gloves.

I

§

Ä Inspect the packaging for damages.
Ä Contact the transport company regarding any

damage to the packaging.

Ä Follow any instructions on the packaging.

GB

D

§

§

DANGER! Risk of fatal injury due to electric shock!

Ä Do not install damaged modules.
Ä Inform your vendor of any damages

immediately.

DANGER! Risk of fatal injury due to electric shock!

Ä Cover the modules with an opaque material during

installation.

NOTE! Module damage may occur!

Ä Never lift or move the module with the connection

cables or junction box.

Ä Carry modules upright and horizontally as

shown.

NOTE! Module damage may occur!

Ä Do not drop modules.

NOTE! Module damage may occur!

Ä Never step on modules.
Ä Do not subject modules to any mechanical

stress.

Ä Do not allow any objects to fall onto modules

NOTE! Module damage may occur!

Ä Only make modications to the module which have

been conrmed in writing by Q CELLS.

Ä Leave modules in their original packaging until

installation.

Ä Store the modules securely in cool and dry rooms.

The packaging is not weatherproof.

WARNING! Fire Risk!

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

NOTE! Module damage may occur!

Ä Do not stack modules.

confirmation

letter

NOTE! Module damage may occur!

Ä Do not install modules near ammable

gas / vapors.

Ä Do not install modules in close proximity to air

conditioning systems.

10 11INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP. INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

3 INSTALLATION

3.2 Preparation of installation

3 INSTALLATION

3.3 Module installation

DANGER! Risk of fatal injury due to electric shock!

Ä Block off the installation zone.
Ä Keep children and unauthorized individuals away

from the solar power system.

DANGER! Risk of fatal injury due to electric shock!

Ä Only use dry, insulated tools.

WARNING! Risk of injury due to falling modules!

Ä Secure modules during installation.
Ä Do not install modules in windy or wet weather.

Ä Do not carry out the installation alone.

Option 1:

Ä Fasten the module with 4 clamps in the specied

clamping range, see page 7.

Ä Tighten clamps according to manufacturer’s

instructions.

Option 2:

Ä Install the module at the 4 mounting points, see

page 7.

Ä Tighten screws according to manufacturer’s

instructions.

Ä Maintain an interval of at least 0.39 in (10 mm)

between two modules along the short side and

0.20 in (5 mm) along the long side.

0.20 in

(5 mm)

0.39 in (10mm)

NOTE! Module damage may occur!

Ä Do not subject modules to mechanical tension.

Max. torsion 0.39 in/yd (10 mm/m).

DANGER! Risk of fatal injury due to electric shock!

Ä Ensure that modules and tools are not subject to

moisture or rain at any time during installation.

• Only install undamaged modules and

components.

Ä Do not drill any other holes (e.g. do not drill any

additional holes).

Option 3:

Ä Install the module using mounting proles, see

page 7.

13INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.12 INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

4 ELECTRICAL CONNECTION

4.1 Safety

4 ELECTRICAL CONNECTION

4.2 Electrical installation safety

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.

Ä Do NOT unplug the cable when under load.
Ä Do NOT connect any exposed cable ends.
Ä Do NOT touch the poles at the same time.

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 life­threatening injuries. The danger increases when several modules
are connected in series.

Ä Please ensure that the entire open circuit voltage is active even

at low levels of solar irradiation.

Ä

Please follow the valid national regulations and safety guidelines
for the installation of electrical devices and systems.

Ä Please make sure to take all necessary safety precautions. With

module or phase voltages of more than 120 V, the extra-low
voltage range is exceeded.

Ä

Carry out work on the inverter and the wiring with extreme caution.

Ä Ensure that the modules are disconnected at the inverter prior

to separation.

Ä

Be sure to observe the specied time intervals after switching off

the inverter. High-voltage components need time to discharge.

DANGER! Risk of fatal injury due to electric shock!

Ä Never open the junction box.
Ä Change of bypass diodes is only allowed by

qualied and trained personnel in disconnected

and covered state.

DANGER! Risk of fatal injury due to electric shock!

Ä Never touch live contacts with bare hands.
Ä Do not touch the poles at the same time.
Ä Cover connectors by suitable protective caps until

installation.

DANGER! Risk of fatal injury due to electric shock!

Ä Ensure correct polarity.

DANGER! Risk of fatal injury due to electric shock!

Ä Be sure to maintain the time intervals as specied

by the inverter manufacturer between switching off
the inverter and beginning any further work.

DANGER! Risk of fatal injury due to electric shock!

Ä Never unplug the cable when under load.

1. Switch off the inverter.

OFF

2. Cover the modules to be disconnected.

DANGER! Risk of fatal injury due to electric shock!

Ä Only use dry, insulated tools for electrical work.

DANGER! Risk of fatal injury due to electric shock!

Ä Insulate any exposed cable ends.
Ä Only connect cables with plugs.

3. Switch off the DC circuit breaker.

Ä Disconnect plugs by the use of appropriate

and qualied tools of the manufacturer Tyco or

Multicontact (adequate for PV4 plug type).

15INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.14 INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

4 ELECTRICAL CONNECTION

4.3 Connection of modules

4 ELECTRICAL CONNECTION

4.4 After installation

Ä Use solar cables for the connection at the junction

box outlet.

Ä Use the same, inverter-compatible plugs.

SOLAR

DANGER! Risk of fatal injury due to electric shock!

Ä Ensure that all electrical components are in a

proper, dry, and safe condition.

NOTE! Module damage may occur!

Ä Ensure that the cabling is not under stress.
Ä Ensure that the cables do not run between module

and subconstruction (danger of pinch).

Ä Do not connect modules with different orientations

or angles of inclination in the same string.

Ä Ensure that all necessary safety and functional

tests have been carried out according to current
industry standards.

Ä Integrate the system into the existing lightening

protection system in accordance with the
applicable local regulations.

NOTE! Module damage may occur!

Ä Ensure that the plug connections are not level with

a water-channeling surface.

WARNING! Fire Risk!

Ä Do not use light concentrators (e.g. mirrors or

lenses).

Ä Ensure for a tight connection between the plugs.

Plugs click together audibly.

click

• A module with min. 47.24 in (1,200 mm) long

cable in portrait orientation can be wired as a

“2nd next neighbor”

“2nd next neighbor” - Wiring without a return

cable.

 Standard wiring with a return cable

1

Inverter

2

Inverter

Ä Ensure that the cabling is not exposed and/

or hanging and is protected from dirt and
moisture.

17INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.16 INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

5 GROUNDING

0.177” (+0.008/-0)

±0.08

0.79”

0.47”

±0.08

6 FAULTS AND DEFECTS

Functional grounding

• When using an installation tilt of < 5° a functional grounding at

the negative generator conncetion must be implemented.

Ä Ensure that the difference of potential between the negative

generator connection and the PE(N) of every MPP tracker of the

respective inverters is 0 V.

Ä Follow the directions of the inverter manufacturer.
Ä Only use inverters which include lincensed grounding kits.

Protective Grounding

In order to prevent electrical shock or re, the frame of the module

as well as any non-current-carrying metal parts of the system must
be grounded. While this section provides some information about
grounding the Q CELLS frames and modules, reference should be

made to local statutes and regulations for specic requirements

on grounding. The U.S. National Electrical Code addresses these
issues in Article 250.

Proper grounding is achieved by bonding all exposed non-current­carrying metal equipment to the appropriately sized equipment
grounding conductor (EGC) or racking system that can be used for
integrated grounding.

Q CELLS frames are protected from corrosion with an anodized
coating, which has to be penetrated in order to ensure proper
bonding. The different methods listed below are suggested
methods for an appropriate bond between the frame and the EGC
or racking system (that will have to be properly grounded). The
method appropriate for any individual installation will depend on

multiple factors.

Option A: Use of a grounding lug

A listed grounding lug can be bonded to the frame using the
grounding holes pre-drilled in the frame. These holes are marked

with a ground symbol, as shown below on the frame section drawing:

To install the grounding lug, follow the specied instructions of

the manufacturer. The grounding lug should be made of stainless
steel or tin plated metals such as aluminum to avoid corrosion. The
grounding lug should be attached to the frame grounding hole using
a stainless steel screw, toothed lock washer or KEPS nut (in order
to penetrate the anodized layer) and backing nut. Care should be
taken to avoid the use of grounding hardware of dissimilar metals,
which may lead to corrosion

Option B: Integrated grounding methods

The Q CELLS modules can be bonded with the racking

system using UL1703 or UL2703 certied integrated

grounding methods. The racking system will then have to be
grounded so that the overall system is properly grounded.
The listed racking system and grounding device should be
installed in accordance with the manufacturers’ instructions.
An example of such integrated grounding method is the use
of a WEEB clip or Schletter plate between the module and the
racking system, when mounting the module. The WEEB washers
are generally compatible with Q CELLS modules, however each

combination module / racking system requires a specic WEEB

washer size. Note that WEEB clips are intended for single use only;
they must not be reused after removal or loosening. Refer to Wiley’s

installation instructions for the specic use of WEEB washers.

An example of such integrated grounding method is the use of a
washer recognized as meeting UL2703 requirements between the
module and the racking system, when mounting the module. For
example, WEEB washers are generally compatible with Q CELLS
modules, however each combination module / racking system

requires a specic WEEB washer size. Note that WEEB washers

are intended for single use only; they must not be reused after
removal or loosening. Refer to Wiley’s installation instructions for

the specic use of WEEB washers.

DANGER!
Risk of fatal injury due to electric shock!

Ä Do not attempt to x any problems yourself (e.g., glass

cracks, damaged cables).

Ä Please contact an installer or Q CELLS Technical Customer

Service Department.

7 DISPOSAL

Ä Do not disconnect modules yourself.

Ä Please commission a trade specialist.

Ä Dispose of modules in accordance with the local disposal

regulations.

• Dimensions shown are in inches.

Aluminum
Frame

Equipment
Grounding
Conductor

PV Laminate

Backing Nut (Stainless Steel)

Toothed Lock Washer (Stainless Steel
or tin-plated metal)

Grounding Lug (Stainless Steel)

Screw (Stainless Steel)

19INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.18 INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

8 MAINTENANCE AND CLEANING

Hanwha 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

Ä

The system should be inspected by an installer annually
to check the following:

•

all system components sit securely and are corrosion
free.

•

the connection is secure and all electrical components
are clean and undamaged.

transfer resistances of the grounding

Cleaning

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

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

parts.

NOTE! Module damage may occur!

Ä Do not clean modules with water if there is a risk

of frost.

0°

Ä Remove dirt with lukewarm water, a broom, or a

soft cloth.

Ä Do not use tensides, scrapers, or any high-pressure

water cleaning equipment.

WARNING!
Risk of falling due to unsecured
access!

Ä Never access the installation area alone or without

taking adequate security precautions.

Ä Please commission a trade specialist.

Clean the modules as follows:

NOTE!
Module surface damage may occur!

Ä Remove snow and ice without force (e.g. with a very

soft broom)

Ä Do not scratch off dirt.
Ä Rinse dirt off with lukewarm water (dust, leaves, etc.)
Ä Use a soft cellulose cloth (kitchen roll) or sponge to

carefully wipe off stubborn dirt. Do not use micro eece

wool or cotton cloths.

Ä

Use an alcohol based glass cleaner. Do not use abrasive

detergents or tensides.

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

Ä Please follow the safety guidelines provided by the IPA

manufacturer.

Ä Do not let IPA run down between the module and the

frame or into the module edges.

Ä Free the substructure from any dirt and debris

(leaves, bird nests, etc.).

21INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.20 INSTALLATION AND OPERATION MANUAL SOLAR MODULES – Q.PRO L-G2 – HANWHA Q CELLS USA CORP.

CONTACT

HANWHA Q CELLS USA CORP.

300 Spectrum Center Drive
Suite 1250
Irvine CA 92618
USA

TEL [phone]
EMAIL [e-mail]
WEB www.q-cells.us

Subject to change without notice. © Hanwha Q CELLS GmbH Installation manual Q.PRO L-G2_2015-06_Rev02_NA