Qcells Q.Pro-G4 User manual

Valid for North America
Q.PRO-G4 · Q.PLUS-G4 · Q.PRO BFR-G4 · Q.PRO BLK-G4
InstallatIon and
operatIon Manual

2 3INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
Document Revision 01
This Installation Manual is valid for North America as of January 2015 for Q.PRO-G4, Q.PLUS-G4, Q.PRO BFR-G4 and Q.PRO BLK-G4 solar modules, and
replaces all earlier versions.
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.
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 completely and care-
fully and observe all guidelines. Non-compliance may result in damage
and/or physical injury.
This installation manual provides instructions for the safe installa-
tion 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 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.
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 in North America for Q CELLS solar modules.
These instructions contain information regarding the safe handling
and use of quality crystalline solar modules from 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
ÄProcedure with one or more steps.
• Lists of items
Ensure that when carrying out a pro-
cedure, you check the results of said
procedure.
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
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 installer and solar module operator are responsible for
compliance with all applicable statutory requirements and
regulations.
ÄThe 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, regulations, 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.
Certied 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 electricians and engineers
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 safety standards,
accident prevention regulations, and the regulations of the local
energy provider.
TABLE OF CONTENTS
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 10
3 INSTALLATION 11
3.1 Safety and transport 11
3.2 Preparation of installation 13
3.3 Module installation 14
4 ELECTRICAL CONNECTION 15
4.1 Safety 15
4.2 Electrical installation safety 16
4.3 Connection of modules 17
4.4 After installation 18
5 GROUNDING 19
6 FAULTS AND DEFECTS 20
7 DISPOSAL 20
8 MAINTENANCE AND CLEANING 21
1 INTRODUCTION

4 5INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
For the electrical data and additional information of the solar modules please refer to the respective currently valid data sheets available at
www.q-cells.com.
PRODUCT LINE Q.PRO-G4 / Q.PRO BFR-G4 / Q.PRO BLKG4 Q.PLUS-G4
Cell type Polycrystalline Q.ANTUM
Length [in (mm)] 65.7 (1670) 65.7 (1670)
Width [in (mm)] 39.4 (1000) 39.4 (1000)
Height [in (mm)] 1.26 (32) 1.26 (32)
Area [yd² (m²)] 2 (1.67) 2 (1.67)
Weight [lb (kg)] 41.45 (18.8) 41.45 (18.8)
Max. system voltage VSYS [V] 1000 1000
Max. series fuse rating [A] 20 20
Permissible operating
temperature range [°F (°C)]
–40 to +185 (–40 to +85)
Junction box protection class IP67 with bypass diode
Connector protection class IP68 IP68
Fire protection class C, Type 1 C, Type 1
Snow load [Pa]15,400 5,400
Wind load [Pa]14,000 4,000
Certicates UL 1703; VDE Quality Tested; CE-compliant; IEC 61215 (Ed.2) see page 9 et sqq.; IEC 61730
(Ed.1) Application Class A
1tested according to IEC 61215
Validity
These instructions are only valid for crystalline solar modules from
Q CELLS. 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.
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.
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.
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.
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.
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
MISUSE OR INCORRECT USE OF SOLAR MODULES VOIDS THE
LIMITED WARRANTY AND MAY CREATE A SAFETY HAZARD
AND RISK PROPERTY DAMAGE. THIS INCLUDES IMPROPER
INSTALLATION OR CONFIGURATION, IMPROPER MAINTENANCE,
UNINTENDED USE, AND UNAUTHORIZED MODIFICATION.
1 INTRODUCTION 2.1 Technical specifications
2 PLANNING
Fig. 1: External dimensions (in inch (mm)) and components for Q.PRO-G4, Q.PRO BFR-G4, Q.PRO BLK-G4, Q.PLUS-G4
NA
DETAIL A
0.630" (16 mm)
0.335" (8.5 mm)
0.965" (24.5 mm)
Junction bo×
Product label
35.58" (980 mm)
65.7" (1670 mm)
4 × Fastening points (DETAIL A)
Cable with
connectors
Frame
5.90" (150
mm)
39.4" (1000 mm)
37.44" (951 mm)
1.26" (32 mm)
8 × Drainage holes
6 × Grounding points ø
0.177" (4.5 mm)
39.37" ( 1000 mm)
Fig. 2: External dimensions (in inch (mm)) and components for Q.PRO-G4 (with 46.06 in fastening point distance)
NA
DETAIL A
0.630" (16 mm)
0.334" (8.5 mm)
0.964" (24.5 mm)
Junction bo×
Product label
46.06" (1170 mm)
65.7" (1670 mm)
4 × Fastening points (DETAIL A)
Cable with
connectors
Frame
3.93"
(100 mm)
39.4" (1000 mm)
37.44" (951 mm)
1.38" (32 mm)
8 × Drainage holes
6 × Grounding points ø
0.177" (4.5 mm)
39.37" ( 1000 mm)

6 7INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
Installation Site
Please note the following guidelines that apply to the installation
site:
• The modules have been tested according to UL 1703 and IEC
61215 for operation in a temperate climate.
• Solar modules are not explosion-proof.
ÄDo not operate solar modules near highly ammable gas and
vapors (e.g. gas tanks, gas stations).
ÄDo not install modules in enclosed space.
Ä
Do not install modules in locations where they may be submerged
in water for lengthy periods.
ÄDo not use modules as a substitute for the normal roong
(e.g. modules are not rainproof).
Prevention of Shadowing Effects
Optimalsolar 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).
Limitations
The solar modules are designed for the following applications:
• Operating temperatures from –40 °F to +185 °F.
• Wind loads up to max. 4000 Pa and snow loads up to max.
5,400 Pa (as tested according to IEC 61215 see chapter 2.3
mounting options).
• Installation using a mounting frame for solar modules.
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.
ÄEnsure that no mechanical stresses (e.g., caused by vibrations,
twisting, or expansion) are generated on the module.
ÄEnsure that the clamps and the mounting frame are compatible.
Clamp System Requirements
Use customary clamps that satisfy the following requirements:
• Clamp width: ≥1.57 in (40 mm).
• Clamp height compliant with a 1.26 in (32 mm) frame height.
• Clamp depth: 0.28–0.47 in (7–12 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.
• Long-term stable clamps that securely afx the module to the
mounting frame.
Module Orientation Requirements
• Vertical or horizontal installation is permitted.
• Installation with a junction box at the bottom is permitted for
modules with junction boxes classied as IP67.
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.
ÄMaintain the permissible angle of inclination.
• Minimum angle of inclination: 3°
• Maximum angle of inclination: 80°
• Follow the directions for installation angles <
5° (“Grounding”, p. 18)
2.2 Requirements
2 PLANNING 2.3 Mounting options
2 PLANNING
Fig. 3: Installation options for crystalline Q CELLS modules. All dimensions are given in mm. 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
INSTALLATION
MODULE POINT MOUNTING SYSTEM LINEAR MOUNTING SYSTEM
INSTALLATION WITH
CLAMPS
Q.PRO-G4
Q.PLUS-G4
Q.PRO BFR-G4
Q.PRO BLK-G4
HYBRID CLAMPING
Q.PRO-G4
Q.PLUS-G4
Q.PRO BFR-G4
Q.PRO BLK-G4
INSTALLATION
ON MOUNTING
POINTS*
Q.PRO-G4*
Q.PLUS-G4
Q.PRO BFR-G4
Q.PRO BLK-G4
INSTALLATION WITH
INSERTION PROFILES
Q.PRO-G4
Q.PLUS-G4
Q.PRO BFR-G4
Q.PRO BLK-G4
NOT PERMITTED
*Note: please check Q.PRO-G4 module version for fastening point distance (long edge with 35.58 in or 46.06 in possible)
CL3 CL4
0 - 11.81
(0 - 300)
0 - 11.81
(0 - 300)
9.84 - 17.72
(250 - 450)
5.91 - 13.78
(150 - 350)
CL3 CL4
CL1
9.84 - 17.72
(250 - 450)
5.91 - 13.78
(150 - 350)
CL1
NA
13.58
(345)
9.84
250
FB2
4 x mounting
slots
4 x mounting
slots
FB2
4 x mounting
slots
4 x mounting
slots
FB1
13.58
(345)
9.84
250
FB1
IP1 IP2
11.81 - 15.75
300 - 400
NA
0 - 3.94
(0 - 100)
CL5
CL2
CL2
0 - 3.94
(0 - 100)
0 - 3.94
(0 - 100)
IP1 IP2

8 9INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
2 PLANNING 2.3 Mounting options
Specications
MODULE TYPE MOUNTING
OPTION CLAMPING AREA1[IN (MM)] ALLOWED STATIC LOAD² [PA]
TEST LOAD ACC. IEC
61215 PUSH/PULL [PA]
Q.PRO-G4
Q.PLUS-G4
Q.PRO BFR-G4
Q.PRO BLK-G4
CL1 Push 9.84 - 13.78 (250 - 350) 2700
5400/4000
>13.78 - 17.72 (>350 - 450) 1900
Pull 9.84 - 17.72 (250 - 450) 2400
CL1 extended
(min. 0.79 in)
Push 9.84 - 13.78 (250 - 350) 3600
>13.78 - 17.72 (>350 - 450) 3300
Pull 9.84 - 17.72 (250 - 450) 2400
CL3 Push 9.84 - 17.72 (250 - 450) 3300
5400/4000
Pull 9.84 - 17.72 (250 - 450) 2400
CL4 Push 0 - 11.81 (0 - 300) 1350
2400/2400
Pull 0 - 11.81 (0 - 300) 1200
FB1 Push 13.58 (345) 2200
5400/4000
Pull 13.58 (345) 2800
FB2 Push 13.58 (345) 3200
5400/4000
Pull 13.58 (345) 2800
FB1 (9.84 in
(250mm))
Push 9.84 (250) 2900
5400/4000
Pull 9.84 (250) 2800
FB2 (9.84 in
(250mm))
Push 9.84 (250) 3200
5400/4000
Pull 9.84 (250) 2800
IP1 Push - 3200
5400/4000
Pull - 3000
IP2 Push - 1350
2400/2400
Pull - 1200
CL5 hybrid
clamping
Push 11.81 - (300 - 400) 2700
2400/2400
Pull 11.81 - (300 - 400) 2700
CL2 without
substructure
support
Push 0 - 3.94 (0 - 100) 1200
2400/2400
Pull 0 - 3.94 (0 - 100) 1100
1Distance between outer edge of module and middle of the clamp.
² Describes the maximum module surface load (vertical to the module surface) regarding safety factors (e.g. EUROCODE). For this
purpose, the load value determined by load tests according to various criteria: laminate overlay, plastic deformation, module failure,
and were divided with a safety factor. The minimum calculated load value corresponds to the maximum permitted load.
UNTING OPTION CL1
ÄEnsure, that the subconstruction does not run below the junction box.
ÄEnsure, that the connection cables of the junction box don‘t run between laminate and substructure.
MOUNTING OPTION CL1 EXTENDED
ÄEnsure, that there’s distance of minimum 1.77 in (45 mm) between laminate backside and subconstruction respectively
that the distance between module frame backside and substructure is minimum 0.79 in (20 mm).
ÄEnsure, that the connection cables of the junction box don‘t run between laminate and substructure.
MOUNTING OPTION CL4
ÄEnsure, that the subconstruction runs exactly below the frame, not below the laminate (module less frame).
MOUNTING OPTIONS FB1 AND FB2
ÄEnsure, that the connection cables of the junction box don‘t run between laminate and substructure.
• Use M8 corrosion-proof screws and washers (diameter 0.63 in (16 mm)).

11INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA10 INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
ÄInspect the packaging for damages.
ÄContact the transport company regarding any
damage to the packaging.
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
WARNING! Fire Risk!
ÄDo not install modules indoors.
ÄDo not install modules on moving objects.
DANGER! Risk of fatal injury due to electric shock!
ÄCover the modules with an opaque material during
installation.
ÄLeave modules in their original packaging until
installation.
ÄStore the modules securely in cool and dry rooms.
The packaging is not weatherproof.
DANGER! Risk of fatal injury due to electric shock!
ÄDo not install damaged modules.
ÄInform your vendor of any damages
immediately.
3.1 Safety and transport
3 INSTALLATION
Module Selection
For detailed key electrical data, please refer to the product data
sheet for the respective product.
ÄOnly 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. Accordingly, the values of ISC and VOC marked on the
module should be multiplied by a facot of 1.25 when determining:
• the component voltage ratings,
• conductor ampacities,
• fuse sizes,
• size of controls connected to the PV output.
Refer to Section 690-8 of the National Electrical Code for an
additional multiplying factor of 125 percent (80 percent derating)
which might be applicable.
ÄPlease 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).
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 manu-
facturer 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.
2.4 Electrical layout
2 PLANNING

12 13INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
NOTE! Module damage may occur!
ÄDo not drop modules.
NOTE! Module damage may occur!
ÄOnly make modications to the module which have
been conrmed in writing by Q CELLS.
NOTE! Module damage may occur!
ÄDo not stack modules.
NOTE! Module damage may occur!
ÄDo not install modules near ammable
gas / vapors.
ÄDo not install modules in close proximity to air
conditioning systems.
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
3.1 Safety and transport
3 INSTALLATION
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 installation.
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).
3.2 Preparation of installation
3 INSTALLATION

15INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA14 INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
ÄMaintain 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.
0.39 in (10mm)
0.20 in
(5 mm)
Option 2:
ÄInstall the module at the 4 mounting points, see
page 7.
ÄTighten screws according to manufacturer’s
instructions.
NOTE! Module damage may occur!
ÄDo not subject modules to mechanical tension.
Max. torsion 0.39 in/yd (10 mm/m).
Option 3:
ÄInstall the module using mounting proles, see
page 7.
Option 1:
ÄFasten the module with 4 clamps in the specied
clamping range, see page 7.
ÄTighten clamps according to manufacturer’s
instructions.
3.3 Module installation
3 INSTALLATION
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.
ÄDo 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 life-
threatening injuries. The danger increases when several modules
are connected in series.
ÄPlease 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.
ÄPlease 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.
ÄEnsure 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!
ÄNever open the junction box.
ÄChange 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!
ÄNever touch live contacts with bare hands.
ÄDo not touch the poles at the same time.
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.
4.1 Safety
4 ELECTRICAL CONNECTION

17INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA16 INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
DANGER! Risk of fatal injury due to electric shock!
ÄEnsure correct polarity.
DANGER! Risk of fatal injury due to electric shock!
ÄBe 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!
ÄNever unplug the cable when under load.
1. Switch off the inverter.
OFF
3. Switch off the DC circuit breaker.
ÄDisconnect plugs by the use of appropriate
and qualied tools of the manufacturer Tyco or
Multicontact (adequate for PV4 plug type).
2. Cover the modules to be disconnected.
4.2 Electrical installation safety
4 ELECTRICAL CONNECTION
ÄUse solar cables for the connection at the junction
box outlet.
ÄUse the same, inverter-compatible plugs.
SOLAR
NOTE! Module damage may occur!
ÄEnsure that the cabling is not under stress.
ÄEnsure that the cables do not run between module
and subconstruction (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.
click
DANGER! Risk of fatal injury due to electric shock!
ÄEnsure that all electrical components are in a
proper, dry, and safe condition.
4.3 Connection of modules
4 ELECTRICAL CONNECTION
ÄStandard wiring with a return cable.
Inverter

19INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA18 INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
ÄEnsure that all necessary safety and functional
tests have been carried out according to current
industry standards.
NOTE! Module damage may occur!
ÄEnsure that the plug connections are not level with
a water-channeling 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 and
moisture.
4.4 After installation
4 ELECTRICAL CONNECTION 5 GROUNDING
Functional grounding
• When using an installation tilt of < 5° a functional grounding at
the negative generator conncetion must be implemented.
ÄEnsure 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.
ÄFollow the directions of the inverter manufacturer.
ÄOnly 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-current-
carrying 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
• Dimensions shown are in inches.
0.177” (+0.008/-0)
±0.08
0.79”
0.47”
±0.08
PV Laminate
Backing Nut (Stainless Steel)
Toothed Lock Washer (Stainless Steel
or tin-plated metal)
Grounding Lug (Stainless Steel)
Equipment
Grounding
Conductor
Aluminum
Frame
Screw (Stainless Steel)
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.

21INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA20 INSTALLATION AND OPERATION MANUAL SOLAR MODULES GENERATION 4 (G4) – HANWHA Q CELLS GMBH – NA
6 FAULTS AND DEFECTS
DANGER!
Risk of fatal injury due to electric shock!
ÄDo not attempt to x any problems yourself (e.g., glass
cracks, damaged cables).
ÄPlease contact an installer or Q CELLS Technical Customer
Service Department.
ÄDo not disconnect modules yourself.
ÄPlease commission a trade specialist.
ÄDispose of modules in accordance with the local disposal
regulations.
7 DISPOSAL
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.
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.
Clean the modules as follows:
NOTE!
Module surface damage may occur!
ÄRemove snow and ice without force (e.g. with a very
soft broom)
ÄDo not scratch off dirt.
ÄRinse dirt off with lukewarm water (dust, leaves, etc.)
ÄUse 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.
ÄPlease follow the safety guidelines provided by the IPA
manufacturer.
ÄDo not let IPA run down between the module and the
frame or into the module edges.
ÄFree the substructure from any dirt and debris
(leaves, bird nests, etc.).
ÄRemove dirt with lukewarm water, a broom, or a
soft cloth.
ÄDo not use tensides, scrapers, or any high-pressure
water cleaning equipment.
NOTE! Module damage may occur!
ÄDo not clean modules with water if there is a risk
of frost.
0°
8 MAINTENANCE AND CLEANING

ContaCt
HanwHa Q CELLS USa Corp.
300 Spectrum Center Drive
Suite 1250
Irvine, CA 92618
USA
tEL [phone]
EMaIL [email protected]
wEB www.q-cells.us
Subject to change without notice. © Hanwha Q CELLS GmbH Installation manual G4 modules_2015-02_Rev01_NA