BenQ PM220P00 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 IE EC C, , E ET TL L) )
PM220P00 / PM2 0P00
Installation Guide for Users

Last revised: December 2011 1
BenQ Solar Photovoltaic Modules (IEC, ETL)
PM220P00 / PM2 0P00 Installation Guide for Users
Important
Please read this instruction sheet in its entirety before installing, wiring, or using this product
in any way. Failure to comply with these instructions will invalidate the BenQ Solar Limited
Warranty for PV Modules.
Limited Warranty
Module limited warranties are described in the BenQ Solar warranty certificates.
Warranties do not apply to any of the following:
PV modules which in BenQ Solar’s absolute judgment have been subjected to: misuse, abuse,
neglect or accident; alteration, improper installation, application or removal (including but not
limited to installation, application or removal by any party other than a qualified personnel;
non-observance of BenQ Solar’s installation, users and/or maintenance instructions; repair or
modifications by someone other than an approved service technician; power failure surges,
lightning, flood, fire, accidental breakage or other events outside BenQ Solar’s control.
Disclaimer of Liability
The installation techniques, handling and use of this product are beyond company control.
Therefore, BenQ Solar does not assume responsibility for loss, damage or expense resulting
from improper installation, handling or use.
Table of Contents
Limited Warranty.........................................................................................................................................1
Disclaimer of Liability.................................................................................................................................1
Safety Instructions.......................................................................................................................................2
Performance of PV Modules .....................................................................................................................3
Grounding.....................................................................................................................................................3
Mounting .......................................................................................................................................................
Wiring............................................................................................................................................................6
Installation.....................................................................................................................................................7
Warnings .......................................................................................................................................................7
Limitation in Connection...........................................................................................................................8
Maintenance..................................................................................................................................................8
Certifications................................................................................................................................................9

Last revised: December 2011 2
Safety Instructions
Modules interconnect pass direct current (DC) and are sources of voltage 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 or disconnection is made, or if
contact is made with module leads that are frayed or torn. Do not connect or
disconnect modules when current from the modules or an external source is present.
Cover all modules in the PV array with an opaque material before making or breaking.
It is imperative to use the supplied locking connectors and safety clips in order to defend
against untrained personnel disconnecting the modules once they have been installed.
All installations must be performed in compliance with all applicable regional and local
codes.
There are no user serviceable parts within the module. Do not attempt to repair any
part of the module.
Installation should be performed only by qualified personnel.
Remove all metallic jewelry prior to installing this product to reduce the chance of
accidental exposure to live circuits.
Use insulated tools to reduce your risk of electric shock.
Do not stand on, drop, scratch or allow objects to fall on modules.
Damaged modules (broken glass, torn back sheet, broken j-boxes, broken connectors,
etc) can be 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.
Do not install or handle the modules when they are wet or during periods of high wind.
Contact your module supplier if maintenance is necessary.
Save these instructions.
The electrical installation is in accordance with local electrical regulations.
Do not open electrical connections or unplug connectors while the circuit is under load.

The module electrical ratings are measured under Standard Test Conditions (STC) of
1000W/m
2
irradiance with AM 1.5G spectrum and a cell temperature of 25ºC. BenQ Solar
modules deliver specific electrical characteristics in Table 1.
Table 1--Electrical Characteristics
Module Type
Module TypeModule Type
Module Type Pma
PmaPma
Pmax
xx
x
(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)
PM220P00_220
PM2 0P00_220 220 36.37 8.36 27.73 7.78
PM220P00_225
PM2 0P00_225 225 36.79 8. 6 28.91 7.91
PM220P00_230
PM2 0P00_230 230 37.01 8. 9 29.23 7.9
PM220P00_235
PM2 0P00_235 235 37.21 8.55 29. 8.02
PM220P00_2 0
PM2 0P00_2 0 2 0 37. 2 8.62 29.65 8.1
PM220P00_2 5
PM2 0P00_2 5 2 5 37.63 8.68 29.87 8.18

Last revised: December 2011 3
PM220P00_250
PM2 0P00_250 250 37.83 8.75 30.08 8.26
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
1.25 when determining component voltage ratings, conductor capacities, fuse sizes, and size of
controls connected to PV output. An additional 1.25 multiplier may be required by the NEC
(National Electric Code) for sizing fuses and conductors as described in the NEC section
690-8.
Performance of PV Modules
A PV module generates current which is proportional to the intensity of solar radiation,
while the voltage varies with cell temperatures.
Note that the 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.
Grounding
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 separately used from the
mounting parts of the module.
The recommended assembly is shown in Figure 1. Note that the frame is fully insulated by
anodizing. Please make sure the grounding screw removes the anodizing on the surface of the
grounding holes, or scratch off the anodizing before the grounding connection is made. If the
material of support structure is different with the material of frame (aluminum), the Insulation
between them is required. 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 2.5mm
2
cross section, together with all the grounding conductors from
each module. Please make sure that each module is grounding properly.
Figure 1 Recommended grounding connection
Cable
Screw
Spring washer
Cup washer
Ground
GroundGround
Ground

Last revised: December 2011
Devices listed and identified for grounding frames of PV modules are permitted to ground the
exposed metallic frames of the module to grounded mounting structures. Per NEC 250.136,
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 250.13 shall be
considered effectively grounded.
Mounting
Modules may be mounted at any angle from horizontal to vertical. Select the appropriate
orientation to maximize sunlight exposure.
The gap between the module and system structure or ground is required to prevent wiring
damage and allows air to circulate behind the module.
Make sure that the module installation shall obey local fire-resistant regulations. Do not
remove or alter the module frame. Additional mounting holes may damage the module and
reduce the strength of the frame.
Important
Modules should be mounted using the following methods only:
1.
1.1.
1. 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 would void the warranty). Use corrosion-proof fastening materials.
For PM220P00 and PM2 0P00 modules, four stainless steel bolts, with nuts, washers,
and lock washers are recommended per module. Only the existing mounting holes
(Diameter: 9mm) that can be used for module to meet 5 00Pa design strength under
IEC 61215/IEC 61730 and to meet 2 00Pa design strength under UL 1703.
2.
2.2.
2. Clamping
ClampingClamping
Clamping:
Note that
Note thatNote that
Note that the
the the
the clamping
clamping clamping
clamping clips on the
clips on theclips on the
clips on the side
side side
side frame
frame frame
frame should be in parallel
should be in parallel should be in parallel
should be in parallel. Here are 2 clamping
methods.
Clamping on longer side frame: The side frames are attached to the longer sides of
the module. Figure 3 shows effective mounting area.
The centerline of the clips should be between D1-375mm~D2- 60mm from the
short end of the module for 5 00 Pa design strength under IEC 61215/IEC 61730
and for 2 00Pa design strength under UL 1703.
Clamping on shorter side frame: The side frames are attached to the shorter
sides of the module. Figure shows effective mounting area.
The centerline of the clips should be between D3-50mm~D -150mm from the
long end of the module for 2 00 Pa design strength under IEC 61215/IEC 61730.
Installers should ensure the clamps are of sufficient strength to allow for the
maximum design pressure of the module. Clips and clamps are not provided by

Last revised: December 2011 5
BenQ Solar.
Figure 2 Installation of module
Figure 3 Effective mounting area (clamping)

Last revised: December 2011 6
Radius ≧ x cable diameter (static steady)
≧ 5x cable diameter (dynamic)
r
Radius ≦ x cable diameter (static steady )
r
Figure Effective mounting area (clamping )
Wiring
DO NOT
DO NOTDO NOT
DO NOT do any change or adjustment on the cable of Junction Box.
D
DD
DO
OO
O NOT
NOTNOT
NOT disconnect cable by yourself!
Important
The cable must not be bent or crushed on the direct exit of the cable screw joint. A minimum
bending radius r≧x (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 connections is
prevented.
Fig. 5 Minimum bending radius of cable

Last revised: December 2011 7
For the wiring, please pay attention to:
1.
1.1.
1. C
CC
Correct wiring s
orrect wiring sorrect wiring s
orrect wiring sc
cc
ch
hh
heme
emeeme
eme
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 plug connections
Correct plug connectionsCorrect plug connections
Correct plug connections
Make connections only in dry conditions. Ensure that connections are secure and tight.
3.
3.3.
3. Use of suitable materials
Use of suitable materialsUse of suitable materials
Use of suitable 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.
.
..
. Cable protect
Cable protectCable protect
Cable protection
ionion
ion
We recommend securing the cables to the mounting system using UV-resistant cable
ties. Protect exposed cables from damage using suitable precautions. Avoid direct
exposure to sunlight.
Installation
Please note the following instructions:
To ensure the correct orientation of the module, the module should face southwards in
the northern hemisphere and northwards in the southern hemisphere.
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 and 10 mm
2
be used. The cables, which allowed 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. They must be kept with low corrosive gas surrounded and with acid
and alkali resistance and must not be flamed nor fire propagated during operating.
The back of the module avoid direct exposure to sunlight.
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 onto
it.
Use the module only for the purpose to which it is designed for. Do not dismantle the
module or remove any part, label, or piece installed by the manufacturer and protection
diodes 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.

Last revised: December 2011 8
Always work under dry conditions, both for the modules and tools.
Do not install the modules where there may be flammable gases or vapors, since sparks
may be produced.
Avoid electric discharges when installing, wiring, starting up or carrying out maintenance
work on the modules.
Do not touch the terminals while the module is exposing to light. Provide the installation
with suitable protection devices to prevent a discharge of 30 or more direct current
volts from any person.
Limitation in Connection
IEC
IECIEC
IEC
The IEC 61730 certificate of these modules guarantees their insulation up to a DC voltage of
1000 V. (IEC 61730 Standard).
UL
ULUL
UL
The UL 1703 certificate of these modules guarantees their insulation up to a DC voltage of
600 V. (UL 1703 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 15A is recommended for
each string when module strings are parallel connected.
In any event, BenQ Solar recommend the PV conductor, which cross section is mm
2
.
External connection boxes will 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 61730: higher
than 50V; EN 61730: higher than 120V), hazardous power applications (higher than 2 0W)
where general contact access is anticipated.
Shadow
Shadow Shadow
Shadow e
ee
effect
ffectffect
ffect
The shadow or hot spot effect is caused by an isolated shadow on one or several module cells
while the rest are receiving high radiation. This situation must be solved by removing the
cause of the shadows. The three protection diodes described in the junction box are provided
to prevent damage to the cells.
Maintenance
Inspect all modules annually for safe electrical connections, sound mechanical connection, and
freedom from corrosion. Periodically clean glass and the module surface only with a soft cloth
or sponge using mild detergent and water. Fingerprints may be removed with standard glass
cleaner. 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 invalidate the product warranty.

Last revised: December 2011 9
Regular cleaning of the module
Regular cleaning of the moduleRegular cleaning of the module
Regular cleaning of the module
Dirt piled up on the module’s transparent surface reduces its performance and may cause
reverse hot spot effects. The problem may become serious in the case of industrial waste and
bird droppings. The intensity of the effect depends on the waste’s opacity. The layers of dust
that reduce the sun’s intensity evenly are not dangerous and the power reduction is not
usually significant. The frequency of cleaning depends, of course, on how quickly dirt
accumulates. In many cases, rainfall may reduce or remove the need to clean the modules.
The cleaning operation must be performed, in general, by the user. It simply consists of
washing the modules with water and non-abrasive detergent.
Visual inspection of the module
Visual inspection of the moduleVisual inspection of the module
Visual inspection of the module
The purpose of visual inspection of the module is to detect possible faults, specifically:
Possible broken glass.
Rust on the circuits and soldering of the PV cells: this is normally due to moisture
entering the module through a breakage in the encapsulating layer during installation or
transport.
Inspection of connections and cabling
Inspection of connections and cablingInspection of connections and cabling
Inspection of connections and cabling
Perform preventive maintenance every 6 months, carrying out the following operations:
Check the tightness and condition of the connection cable junctions.
Check the junction box sealing. Should sealing faults be observed, the items which have
been affected should be replaced and cleaned. It is important to monitor the junction
box sealing by using new sealing methods such as silicon sealing according to the case.
Certifications
IEC
IECIEC
IEC
– The PV modules provided by BenQ Solar all pass the design qualification and type
approval standard IEC 61215 editions 2.
– The PV modules provided by BenQ Solar all pass the safety qualification standard
IEC
IECIEC
IEC 61730
6173061730
61730 certified for application class A.
– Modules qualified for safety through EN IEC61730-1 and -2 within this application
class are considered to meet the requirements for Safety Class II.
ET
ETET
ETL
LL
L
This product meets or exceeds the requirements set forth by UL1703 for PV Modules.
This UL1703 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.
BenQ Solar is a division of AU Optronics
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