BenQ PM245P01 Series User manual

B
Be en nQ Q S So ol la ar r P Ph ho ot to ov vo ol lt ta ai ic c M Mo od du ul le es s
I
In ns st ta al ll la at ti io on n G Gu ui id de e ( (E ET TL L) )
PM245P0 Series
V
VV
Version .0
ersion .0ersion .0
ersion .0
Note: The content of this manual is subject to change without notice.
© 20 3 AU Optronics All Rights Reserved

BenQ Solar
BenQ SolarBenQ Solar
BenQ Solar Photovoltaic Modules
Photovoltaic ModulesPhotovoltaic Modules
Photovoltaic Modules (
( (
(ET
ETET
ETL
LL
L)
))
)
Installation Guide
Installation Guide Installation Guide
Installation Guide
Chapter General Information..................................................................................................................
. Introduction ....................................................................................................................................
.2 Product Certifications and UL Listing Information ...............................................................
.3 Disclaimer of Liability ...................................................................................................................
.4 General Safety Reminders ...........................................................................................................2
.5 Guidelines for Handling and Installation ..................................................................................2
Chapter 2 Electrical Characteristics of PV Module ..............................................................................4
2. Performance of PV Modules .......................................................................................................4
Chapter 3 Installation....................................................................................................................................5
3. Choose a Suitable Location.........................................................................................................5
3.2 General Installation Guidelines ..................................................................................................5
3.3 Mounting Options..........................................................................................................................6
3.4 Zep Components...........................................................................................................................9
3.5 Zep Component Installation.................................................................................................... 0
Chapter 4 Installation-grounding, wiring, limitation of connection................................................. 2
4. Grounding (Negative)................................................................................................................ 2
4.2 Wiring............................................................................................................................................. 5
4.3 Limitation of Connection (ETL).............................................................................................. 6
4.4 Installation..................................................................................................................................... 7
4.5 Warnings........................................................................................................................................ 7
Chapter 5 Maintenance ............................................................................................................................. 9
5. Module Cleaning Guidelines .................................................................................................... 9
5.2 Module Cleaning Instructions.................................................................................................. 20
5.3 Cleaning the Frame .................................................................................................................... 20
5.4 Visual inspection of the module............................................................................................... 2
5.5 Inspecting connections and cabling ........................................................................................ 2

Last revised: May 7, 20 3
Chapter
Chapter Chapter
Chapter General Information
General Information General Information
General Information
. Introduction
The following is the product installation guide for ZEP compatible BenQ Solar photovoltaic
modules.
Please read these instructions in entirety before using this product in any way. Failure to
comply with the installation instructions within this document can void the BenQ Solar
Limited Warranty for this product.
See BenQ Solar Limited Warranty document for full product warranty details and limitations.
IMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
PLEASE NOTE:
PLEASE NOTE:PLEASE NOTE:
PLEASE NOTE: WARRANTY IS VOID IF NON
WARRANTY IS VOID IF NON WARRANTY IS VOID IF NON
WARRANTY IS VOID IF NON-
--
-ZEP CER
ZEP CERZEP CER
ZEP CERTIFIED HARDWARE IS
TIFIED HARDWARE IS TIFIED HARDWARE IS
TIFIED HARDWARE IS
ATTACHED TO GROVE IN MODULE FRAME.
ATTACHED TO GROVE IN MODULE FRAME.ATTACHED TO GROVE IN MODULE FRAME.
ATTACHED TO GROVE IN MODULE FRAME.
.2 Product Certifications and UL Listing Information
This product meets or exceeds the requirements set forth by UL 703 for PV Modules. This
UL 703 Standard covers flat-plate PV modules intended for installation on buildings and those
intended to be freestanding. To satisfy the listing for this product the modules must be
mounted with a rack or standoff structure. It does not include integration into a building
surface because additional requirements may apply. This product is not intended for use
where artificially concentrated sunlight is applied to the module.
.3 Disclaimer of Liability
Please follow all relevant Industry Best Practices when handling, installing, and using this
product. This guide is designed for use by trained and certified solar professionals only.
BenQ Solar does not assume responsibility for loss, damage or expense resulting from
installation, handling or use of this product.

Last revised: May 7, 20 3
2
.4 General Safety Reminders
IMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
THIS PRODUCT IS DESI
THIS PRODUCT IS DESITHIS PRODUCT IS DESI
THIS PRODUCT IS DESIGNED FOR INSTALLATIO
GNED FOR INSTALLATIOGNED FOR INSTALLATIO
GNED FOR INSTALLATION
N N
N BY QUALIFIED PERSONN
BY QUALIFIED PERSONNBY QUALIFIED PERSONN
BY QUALIFIED PERSONNEL
ELEL
EL ONLY
ONLY ONLY
ONLY.
..
.
ALL HANDLING AND INS
ALL HANDLING AND INSALL HANDLING AND INS
ALL HANDLING AND INSTALLATIONS MUST BE P
TALLATIONS MUST BE PTALLATIONS MUST BE P
TALLATIONS MUST BE PERFORMED IN COMPLIAN
ERFORMED IN COMPLIANERFORMED IN COMPLIAN
ERFORMED IN COMPLIANCE WITH
CE WITH CE WITH
CE WITH
ALL APPLICABLE CODES
ALL APPLICABLE CODESALL APPLICABLE CODES
ALL APPLICABLE CODES,
,,
, RULES AND REGULATIO
RULES AND REGULATIO RULES AND REGULATIO
RULES AND REGULATIONS.
NS.NS.
NS.
In addition to the applicable rules and regulations, please follow all guidelines for safe handling
and/or installation of BenQ Solar modules. In addition to the guidelines below, always
observe industry best practices when handling and/or installing any BenQ Solar module.
.5 Guidelines for Handling and Installation
LIFTING AND HANDLING
LIFTING AND HANDLINGLIFTING AND HANDLING
LIFTING AND HANDLING
Do not lift the module or carry module by junction box or PV cables.
Do not drill holes in the frame.
Avoid scratching the frame. Scratches to the frame will compromise protective coating
and can result in corrosion or weakened structure.
Do not scratch or damage the module backsheet. Scratches to the backsheet could
affect module performance.
Do not stand on, drop, scratch or allow objects to hit modules (especially module glass).
Do not install or handle the modules when wet or during periods of high wind.
Do not install the modules where there may be flammable gases or vapors, since sparks
may be produced.
Save these instructions for future reference.
ELECTRICAL HANDLING
ELECTRICAL HANDLINGELECTRICAL HANDLING
ELECTRICAL HANDLING AND INSTALLATION
AND INSTALLATION AND INSTALLATION
AND INSTALLATION
Mo
MoMo
Modules interconnect
dules interconnectdules interconnect
dules interconnect points
points points
points conduct
conductconduct
conduct direct current (DC) and are sources of voltage
direct current (DC) and are sources of voltage direct current (DC) and are sources of voltage
direct current (DC) and are sources of voltage
when the module is under load and when it is exposed to light.
when the module is under load and when it is exposed to light. when the module is under load and when it is exposed to light.
when the module is under load and when it is exposed to light.
Direct current can arc across gaps and may cause injury or death if improper connection
Direct current can arc across gaps and may cause injury or death if improper connection Direct current can arc across gaps and may cause injury or death if improper connection
Direct current can arc across gaps and may cause injury or death if improper connection
or disconnection is
or disconnection isor disconnection is
or disconnection is made, or if contact is made with module leads that are frayed or
made, or if contact is made with module leads that are frayed or made, or if contact is made with module leads that are frayed or
made, or if contact is made with module leads that are frayed or
torn.
torn.torn.
torn.

Last revised: May 7, 20 3
3
Please use caution when handling any module.
Please use caution when handling any module.Please use caution when handling any module.
Please use caution when handling any module.
Remove all metallic jewelry prior to installing this product to reduce the chance of
accidental exposure to live circuits.
Use properly insulated tools to reduce your risk of electric shock.
Do not touch the terminals while the module is exposed to light.
During installation use suitable protection prevent a discharge of at least 30 direct
current volts to each person on crew.
Do not connect or disconnect modules when current from the modules or an external
source is present.
Do not remove or misuse module connectors, this could void module warranty.
Cover all modules in the PV array with an opaque material before making or breaking
any connections.
Use only the supplied locking connectors and safety clips in order to prevent untrained
persons from disconnecting the modules once installed.
There are no serviceable parts within the module. Do not attempt to change or repair
any part of the module.
Damaged modules (broken glass, torn back sheet, broken j-boxes, broken connectors,
etc) can present electrical hazards as well as laceration hazards. Contact with damaged
module surfaces or module frame can cause electric shock. The dealer or installers
should remove the module from array and contact the supplier for disposal instructions.
STORAGE
STORAGESTORAGE
STORAGE
When storing modules for any period of time, cover modules to ensure protection from
the elements.
When storing the modules, turn so that the glass is face down. Do not allow water to
collect inside module, this can damage module connectors.
When storing the modules, do not allow the anodized profiles (frames) to come into
contact with contaminants such as cement or mortar, which will cause damage to the
anodic oxide coatings.
*A
*A*A
*Always contact your module supplier for additional instru
lways contact your module supplier for additional instrulways contact your module supplier for additional instru
lways contact your module supplier for additional instructions if maintenance is necessary.
ctions if maintenance is necessary.ctions if maintenance is necessary.
ctions if maintenance is necessary.*
**
*

Last revised: May 7, 20 3
4
Chapter 2
Chapter 2Chapter 2
Chapter 2 Electrical C
Electrical C Electrical C
Electrical Characteristics
haracteristicsharacteristics
haracteristics of PV M
of PV M of PV M
of PV Mo
oo
odule
duledule
dule
The module electrical ratings are measured under Standard Test Conditions (STC) of
000W/m2 irradiance with AM .5G spectrum and a cell temperature of 25ºC. Electrical
characteristics of BenQ Solar modules vary slightly by wattage; refer to table below.
Module Type
Module TypeModule Type
Module Type Pmax
PmaxPmax
Pmax
(W)
(W)(W)
(W)
Voc
VocVoc
Voc
(V)
(V)(V)
(V)
Isa
IsaIsa
Isa
(A)
(A)(A)
(A)
Vmp
VmpVmp
Vmp
(V)
(V)(V)
(V)
Imp
ImpImp
Imp
(A)
(A)(A)
(A)
PM245P0 245 245 37.2 8.64 30.3 8.09
PM245P0 250 250 37.4 8.69 30.6 8. 7
PM245P0 255 255 37.6 8.76 30.8 8.28
PM245P0 260 260 37.7 8.83 3 .2 8.34
Ref. Table
Ref. Table Ref. Table
Ref. Table –
––
– Electrical
ElectricalElectrical
Electrical Characteristics by
Characteristics byCharacteristics by
Characteristics by Module Output
Module Output Module Output
Module Output
A PV module may produce more current and/or voltage than reported at STC. Sunny, cool
weather and reflection from snow or water can increase current and power output.
Therefore, the values of Isc and Voc marked on module should be multiplied by a factor of
.25 when determining component voltage ratings, conductor capacities, fuse sizes, and size
of controls connected to PV output. An additional .25 multiplier may be required by the
NEC (National Electric Code) for sizing fuses and conductors as described in the NEC
section 690-8.
2. Performance of PV Modules
A PV module generates current which is proportional to the intensity of solar radiation, and
Direct Current voltage which varies with cell temperatures. The PV cell temperature is
usually higher than the environmental temperature. The increase in the temperature of cell
compared to the air temperature depends on the thermal characteristics of the module.
In summary, depending on solar radiation, the temperature of the cells and the equipment to
which they are connected, a PV module will generate a different current and voltage levels,
which result in a different power output.

Last revised: May 7, 20 3
5
Chapter
Chapter Chapter
Chapter 3
33
3 Installation
InstallationInstallation
Installation
Please see the Handling and Installation Guidelines in Chapter for more information.
3. Choose a Suitable Location
Modules may be installed at any angle from horizontal to vertical. Select the appropriate
orientation to maximize sunlight exposure.
The modules should not be shaded; shading will affect module output significantly.
Constant module shade can cause module “hotspots” which could shorten the life of the
product over extended periods of time.
Module should never be fully submerged or installed on a mobile location (i.e. boat).
3.2 General Installation Guidelines
Do not remove or alter the module frame, doing so may void product warranty.
Additional mounting holes may damage the module and compromise frame strength.
The gap between the module and system structure and ground is required to prevent
wiring damage and allows air to circulate behind the module.
* Traditional mounting systems require a gap between two modules that has a minimum
20mm for common use.
*
**
* Does NOT apply to installations
Does NOT apply to installations Does NOT apply to installations
Does NOT apply to installations using
usingusing
using ZEP
ZEP ZEP
ZEP Mounting System.
Mounting System. Mounting System.
Mounting System.
BenQ Modules can be installed in landscape layout.
Avoid exposing the back of the module to direct sunlight.
Any installation must comply with all applicable Building, Electrical and Fire Department
Rules and Regulations.
Do not install the modules where there may be flammable gases or vapors, since sparks
may be produced.
BenQ Modules can be installed using any option described in the Mounting Options
section, including the Zep mounting system, per the instructions in this manual.
Not mounting the modules as directed in this manual may void the product warranty.
All screws and/or clamps used to secure the modules must be rated for this use.

Last revised: May 7, 20 3
6
3.3 Mounting Options
Z
ZZ
ZEP
EPEP
EP MOUNTING
MOUNTING MOUNTING
MOUNTING OPTIONS
OPTIONSOPTIONS
OPTIONS
While installing modules using Zep mounting hardware, PM245P0 modules must be installed
in accordance to the applicable Zep Installation Guide (either ZS Comp™ or ZS Span™). For
in-depth information, please download the latest Zep Manual form the website of Zep Solar.
(http://www.ZepSolar.com/index.php/support/)
PM245P0 modules installed with ZS Comp™ and ZS Span™ hardware are rated for design
loads of 50 psf (2400 Pa) on the back surface (e.g., wind load) and on the front surface (e.g.,
wind and snow load) when installed according to the following diagrams and with all
applicable installation instructions.
Figure
Figure Figure
Figure 3
33
3-
--
- : ZS Comp Layout Dimensions (50 psf Design Load)
: ZS Comp Layout Dimensions (50 psf Design Load): ZS Comp Layout Dimensions (50 psf Design Load)
: ZS Comp Layout Dimensions (50 psf Design Load)
Figure
Figure Figure
Figure 3
33
3-
--
-2: ZS Span Layout Dimensions (50
2: ZS Span Layout Dimensions (502: ZS Span Layout Dimensions (50
2: ZS Span Layout Dimensions (50 psf Design Load)
psf Design Load)psf Design Load)
psf Design Load)

Last revised: May 7, 20 3
7
SCREWING
SCREWINGSCREWING
SCREWING
Secure the module to the structure using the factory mounting holes. The torque wrench
must be used for assembly. In the examples shown, the tightening torque must be 20N．m.
Use the existing holes for securing the module; do not drill any additional holes (doing so will
void the warranty). Use appropriate corrosion-proof fastening materials.
For PM245P0 modules, four stainless steel bolts, with nuts, washers, and lock washers are
recommended per module. Only the existing mounting holes (Diameter: 6.6mm) that can be
used for module to meet 2400Pa design strength under UL 703,
Figure
Figure Figure
Figure 3
33
3-
--
-3
33
3: Installation of Module (Screwing)
: Installation of Module (Screwing): Installation of Module (Screwing)
: Installation of Module (Screwing)

Last revised: May 7, 20 3
8
CLAMPING
CLAMPINGCLAMPING
CLAMPING
Note that the clamping clips on the side frame should be installed in parallel to each other.
The cross-section dimension of Back rail should be larger than 40mm*80mm. When
Clamping on longer side frame, the side frames of clamping should touch longer sides of the
module to ensure tight connection between frame and clamping.
Figure 3-4 shows module mounting areas. The centerline of the clips should be between
D -28 mm~D2-375mm from the short end of the module for 2400Pa design strength under
UL 703.
Figure 3
Figure 3Figure 3
Figure 3-
--
-4
44
4: Effective Mounting Area (Clamping)
: Effective Mounting Area (Clamping): Effective Mounting Area (Clamping)
: Effective Mounting Area (Clamping)

Last revised: May 7, 20 3
9
3.4 Zep Components
ZE
ZEZE
ZEP GROOVE AND ROCKIT
P GROOVE AND ROCKITP GROOVE AND ROCKIT
P GROOVE AND ROCKIT
The Rockit is a hardware feature which used to secure PV modules to the roof attachments.
The Rockit fits into the Zep Groove on both sides: The Key side insets, while the Tongue
side receives.
Figure
Figure Figure
Figure 3
33
3-
--
-5
55
5: Zep Groove and Rockit
: Zep Groove and Rockit: Zep Groove and Rockit
: Zep Groove and Rockit
KEY AND TONGUE
KEY AND TONGUEKEY AND TONGUE
KEY AND TONGUE
The Key and Tongue concept informs all Zep Compatible designs. The Key side inserts into
the Zep Groove, similar to inserting a key into a lock. On the other side, the Zep Groove
allows PV modules to “drop in” easily onto the Tongue side.
Figure
Figure Figure
Figure 3
33
3-
--
-6
66
6: Module Drop
: Module Drop: Module Drop
: Module Drop-
--
-In Example
In ExampleIn Example
In Example

Last revised: May 7, 20 3
0
KEY AND TONGUE: INTE
KEY AND TONGUE: INTEKEY AND TONGUE: INTE
KEY AND TONGUE: INTERLOCK
RLOCKRLOCK
RLOCK
Key and Tongue in a Zep Compatible design is also seen with the Interlock, a component that
couples and bonds two modules together. Here, the Key and Tongue are differently shaped,
but they still fit into the Zep Groove in the same manner as the Rockit.
Figure
Figure Figure
Figure 3
33
3-
--
-7
77
7: Interlock, Key and Tongue Side Views
: Interlock, Key and Tongue Side Views: Interlock, Key and Tongue Side Views
: Interlock, Key and Tongue Side Views
3.5 Zep Component Installation
INTERLOCK INSTALLA
INTERLOCK INSTALLAINTERLOCK INSTALLA
INTERLOCK INSTALLATION
TIONTION
TION
The Interlock provides module-to-module frame bonding through the interface with the Zep
Groove. The Interlock is UL Listed to UL2703 and ETL Listed to UL2703.
Use the marks along the top edge of the Interlock piece to help align the parts and tighten
fasteners once interlock and module are aligned. The Interlock
The InterlockThe Interlock
The Interlock part
part part
part is used to connect
is used to connect is used to connect
is used to connect
modules together.
modules together.modules together.
modules together.
Figure
Figure Figure
Figure 3
33
3-
--
-8
88
8: Interlock Alignment Marks
: Interlock Alignment Marks: Interlock Alignment Marks
: Interlock Alignment Marks
. Insert and push the Key side of the Interlock firmly into the Zep Groove.
2. Place Zep Tool over the fastener with the aligned with Interlock reference mark (Please
refer the figure on the next page).

Last revised: May 7, 20 3
3. Rotate Zep Tool clockwise to exactly Position #3 (Do not over– or under- tighten)
Figure
Figure Figure
Figure 3
33
3-
--
-9
99
9: Interlock Insertion and Installation Uses Zep Tool
: Interlock Insertion and Installation Uses Zep Tool: Interlock Insertion and Installation Uses Zep Tool
: Interlock Insertion and Installation Uses Zep Tool

Last revised: May 7, 20 3
2
Chapter
Chapter Chapter
Chapter 4
44
4 Installation
Installation Installation
Installation-
--
-grounding, wir
grounding, wirgrounding, wir
grounding, wiring, limitation of connection
ing, limitation of connectioning, limitation of connection
ing, limitation of connection
4. Grounding (Negative)
Two grounding methods can be used to provide a path to ground.
. Using Zep certified component – Ground Zep
and/or
2. Grounding holes – BenQ Solar PV modules have a clearly marked grounding hole on
each side of the frame for inserting the ground contact. The grounding screw and bolt
are separate from the mounting parts of the module.
The Ground Zep is UL and ETL Listed to UL467 and is UL Listed to UL2703. To use
Ground Zep:
. Insert a Ground Zep in the Zep Groove of any module around the array perimeter.
Start with the set screw at 9 o’clock position (pointing left).
2. Use either the Zep Tool or the Flat Tool (shown below) to lock the Ground Zep into
place by turning /4 turn clockwise. After the Ground Zep is turned 90 Degrees, the
set screw should be pointing straight up. (This locks the Ground Zep into the Zep
Groove and creates a solid ground bond with the module frame.)
Figure
Figure Figure
Figure 3
33
3-
--
- 0
00
0: Ground Zep Installation
: Ground Zep Installation: Ground Zep Installation
: Ground Zep Installation
3. Insert solid cooper ground wire into the ground wire retention slot and turn the set
screw with a flat-bladed screw driver until the ground wire is captured by the set screw.
To fully secure, torque the set screw as follows:
Wire Size (AWG)
Wire Size (AWG)Wire Size (AWG)
Wire Size (AWG) 4 – 6 8 0 - 4
Torque (in
Torque (inTorque (in
Torque (in-
--
-lbs)
lbs)lbs)
lbs) 50 45 40

Figure 3
Figure 3Figure 3
Figure 3-
--
- : Connect Ground
: Connect Ground : Connect Ground
: Connect Ground
Zep to Building Ground/Earth
Zep to Building Ground/EarthZep to Building Ground/Earth
Zep to Building Ground/Earth
Figure
Figure Figure
Figure 3
33
3-
--
- 2
22
2 Grounding Connection
Grounding Connection Grounding Connection
Grounding Connection
Method
MethodMethod
Method
IMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
PLEASE
PLEASEPLEASE
PLEASE MAKE SURE THE GROUN
MAKE SURE THE GROUN MAKE SURE THE GROUN
MAKE SURE THE GROUNDING SCREW REMOVES T
DING SCREW REMOVES TDING SCREW REMOVES T
DING SCREW REMOVES THE ANODIZING
HE ANODIZING HE ANODIZING
HE ANODIZING FROM
FROMFROM
FROM
THE SURFACE OF THE G
THE SURFACE OF THE GTHE SURFACE OF THE G
THE SURFACE OF THE GROUNDING HOLES, OR S
ROUNDING HOLES, OR SROUNDING HOLES, OR S
ROUNDING HOLES, OR SCRATCH OFF THE ANODI
CRATCH OFF THE ANODICRATCH OFF THE ANODI
CRATCH OFF THE ANODIZING
ZING ZING
ZING
BEFORE
BEFOREBEFORE
BEFORE THE GROUNDING CONNE
THE GROUNDING CONNE THE GROUNDING CONNE
THE GROUNDING CONNECTION IS MADE
CTION IS MADECTION IS MADE
CTION IS MADE SINCE
SINCE SINCE
SINCE THE FRAME IS FULLY
THE FRAME IS FULLY THE FRAME IS FULLY
THE FRAME IS FULLY
INSULATED BY ANODIZI
INSULATED BY ANODIZIINSULATED BY ANODIZI
INSULATED BY ANODIZING.
NG.NG.
NG.
IF THE MATERIAL OF S
IF THE MATERIAL OF SIF THE MATERIAL OF S
IF THE MATERIAL OF SUPPORT STRUCTURE IS
UPPORT STRUCTURE IS UPPORT STRUCTURE IS
UPPORT STRUCTURE IS DIFFERENT
DIFFERENT DIFFERENT
DIFFERENT FROM
FROMFROM
FROM THE MATERIAL OF
THE MATERIAL OF THE MATERIAL OF
THE MATERIAL OF
FRAME (
FRAME (FRAME (
FRAME (IE COPPER AND
IE COPPER AND IE COPPER AND
IE COPPER AND ALUMINUM)
ALUMINUM)ALUMINUM)
ALUMINUM) IN
ININ
INSULAT
SULATSULAT
SULATE
EE
E BETWEEN THE
BETWEEN THE BETWEEN THE
BETWEEN THE TWO
TWO TWO
TWO.
. .
.
Should the support structure be a non conductor, a cable must be connected by means of a
suitable fastening system. The fastening system will be joined to a cable with a minimum
2.5mm2 cross section, together with all the grounding conductors from each module. Please
make sure that each module is grounded properly. The recommended assembly is shown
above in Figure 3- 2.
Per NEC 250. 36, electrical equipment secured to and in electrical contact with a metal rack
or structure provided for its support and grounded by one of the means indicated in 250. 34
shall be considered effectively grounded.

Last revised: May 7, 20 3
5
Radius ≥ 4x cable diameter (static steady)
Radius ≥ 5x cable diameter (dynamic)
r
Radius ≦ 4x cable diameter (static steady )
r
4.2 Wiring
IMPORTANT
IMPORTANTIMPORTANT
IMPORTANT
DO NOT
DO NOTDO NOT
DO NOT T
T T
TAMPER WITH THE MODUL
AMPER WITH THE MODULAMPER WITH THE MODUL
AMPER WITH THE MODULE
E E
E JUNCTION BOX.
JUNCTION BOX. JUNCTION BOX.
JUNCTION BOX.
D
DD
DO
OO
O NOT
NOT NOT
NOT DISCONNECT
DISCONNECT DISCONNECT
DISCONNECT DC WIRING WITHOUT US
DC WIRING WITHOUT USDC WIRING WITHOUT US
DC WIRING WITHOUT USING PROPER METHODS A
ING PROPER METHODS AING PROPER METHODS A
ING PROPER METHODS AND
ND ND
ND
TOOLS TO PREVENT SHO
TOOLS TO PREVENT SHOTOOLS TO PREVENT SHO
TOOLS TO PREVENT SHOCK.
CK.CK.
CK.
The cable must not be bent or crushed on the direct exit of the cable screw joint. A minimum
bending radius r≥4x (static steady), r≥5x (dynamic) cable diameter must be maintained. The
cable must be routed in a way that tensile stress on the conductor or connection(s) is
prevented.
Fig
FigFig
Figure
ureure
ure 2
22
2 Minimum bending radius of cable
Minimum bending radius of cable Minimum bending radius of cable
Minimum bending radius of cable
Pay attention to the following when wiring:
.
..
. Correct wiring scheme
Correct wiring schemeCorrect wiring scheme
Correct wiring scheme
Check that the wiring is correct before commissioning the system. If the measured open
circuit voltage differs from the specifications, then there is a wiring fault. Ensure that the
polarity is correct.
2.
2.2.
2. Correct
Correct Correct
Correct DC plug co
DC plug coDC plug co
DC plug connection method
nnection methodnnection method
nnection method
Make connections only in dry conditions. Ensure that connections are secure and tight.

Last revised: May 7, 20 3
6
3.
3.3.
3. Use correctly rated materials
Use correctly rated materialsUse correctly rated materials
Use correctly rated materials
Use special solar cable and suitable connectors only. Ensure that they are in perfect
electrical and mechanical condition. Use only single wire cables. Select a suitable
conductor diameter to minimize voltage drop.
4.
4.4.
4. C
CC
Cable protection
able protectionable protection
able protection
Secure the cables to the mounting system using UV-resistant cable ties. Protect exposed
cables from damage using suitable precautions. Avoid direct exposure to sunlight.
4.3 Limitation of Connection (ETL)
The UL 703 certificate of these modules guarantees their insulation up to a DC voltage of
000 V (UL 703 Standard).
However, a cable with a suitable cross section must be used for conducting the sum of the
currents as generated by the modules. A series protection fuse of 5A is recommended for
each string when module strings are wired in parallel.
BenQ Solar recommends the PV conductor, which cross section is 4 mm2. External
connection boxes can be used to enable greater cable cross section area for long distance
transmission.
The modules are qualified for the application class A: Hazardous voltage (IEC 6 730: higher
than 50V; EN 6 730: higher than 20V), hazardous power applications (higher than 240W)
where general contact access is anticipated.

Last revised: May 7, 20 3
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4.4 Installation
Please note the following instructions:
The module must be installed so that air can freely circulate around it. The cells’ working
temperature will thus be reduced and, consequently, the module’s performance will be
enhanced.
The cross section for the conductors must be ensured that the voltage drop during the
installation does not exceed 2% of its nominal voltage.
BenQ Solar PV modules are supplied with or without cables, according to where they
are ordered. Should they be supplied without cables, it is recommended that cables with
cross sections between 4 and 0 mm2 be used.
The cables, which allow easy handling while providing high protection against overloads
and short-circuits, are formed by flexible Cu conductors, cross linked insulated
polyethylene and coated with polyvinyl chloride or similar insulation. The insulation
should be flame, acid and alkali resistant and should be stored in an area free of any
corrosive gases.
4.5 Warnings
The modules should be installed and handled by qualified persons only.
Do not climb up or walk on the module.
Do not drop the module or throw objects on the module.
Use the module only for the purpose to which it is designed.
Do not dismantle the module or remove any part, label, or piece assembled by the
manufacturer without the manufacturer’s authorization.
Do not concentrate sunlight or other artificial light sources onto the module.
Use tools duly coated with insulating material while working with the modules.
Always work under dry conditions.
Do not install the modules where there may be flammable gases or vapors, since sparks
may be produced.
Take care to avoid electric discharges when installing, wiring, starting up or carrying out

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maintenance work on the modules.
Do not touch the terminals while the module is exposed to light.
Install with suitable protection to redirect a discharge of 30 or more direct current volts
to if delivered any person on the installation team.
Please prevent adherent of oil such as paraffin liquid, animal oil and vegetable oil form
molding parts. It may be cracked or broken and loose the performance of Junction Box
and connectors.

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Chapter
Chapter Chapter
Chapter 5
55
5 Maintenance
MaintenanceMaintenance
Maintenance
Inspect all modules annually for safe electrical connections, sound mechanical connection,
and corrosion.
BenQ Solar PV module may use anti-reflective coating (ARC) glass to enhance power
output.
Do not to touch glass surface unless wearing clean gloves in order to prevent
fingerprints or smudges on the ARC. Fingerprints may be removed with standard glass
cleaner.
Periodically clean glass and the module surface only with a soft cloth or sponge using
mild detergent and water.
Do not use harsh cleaning materials such as scouring powder, steel wool, scrapers,
blades, or other sharp instruments to clean the glass surface of the module. Use of such
materials will void the product warranty.
5. Module Cleaning Guidelines
Dirt piled up on the module’s transparent surface reduces its performance and may cause the
module hot spot effect. This problem may become serious in the case of industrial waste and
bird droppings collecting on the module surface.
Thin layers of dust (normal soiling) that reduce the sun’s intensity evenly are not dangerous
and the power reduction is not as significant as other debris.
Clean the module array regularly to address reduced production due to soiling. The
frequency of cleaning depends on how quickly material accumulates. Mounting the module at
or above a 5 degree angle will help prevent dust and debris from collecting on the module.
In many cases, rainfall may reduce or remove the need to clean the modules. It is best to
clean the module during early morning, late afternoon or cloudy day. Do not clean module
during high temperature, temperature lower than zero degrees Celsius, or any time when
there is a large temperature difference between module and cleanser.