ET Solar ET-P654 series User manual

INSTALLATION
MANUAL（UL）
ET SOLAR SERIES MODULE
Contact Information Of Manufacturer:
You may contact our regional branches for questions and services:
Please consult your dealer or the manufacturer concerning the warranty of
your modules. If you have any further questions, your dealer and ET Solar will
gladly assist you.
Subject to technical modificaons without noce.2016 © ET Solar Group
Tel: [phone] 86898098
Fax: [phone]
E-mail: [email protected]
www.etsolar.com
Tel: [phone]
Fax: [phone]
Email: sales @etsolar.us
19F, Block C, Wanda Plaza, Jianye District,
Nanjing 210019, China
4900 Hopyard Road, Suite 310, Pleasanton, CA 94588, USA

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1
2
3
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.2
3.3
3.4
4
5
6
TABLE OF CONTENTS
ET Solar Group is a vertically integrated solar energy equipment manufacturer and
turnkey solutions provider. With local sales and marketing subsidiaries and offices
throughout Asia, Europe, and North America, we provide high quality photovoltaic
modules, world leading solar tracking systems and smart turnkey solutions to our
customers in more than 50 countries and areas. Our products have been delivering
strong operating performance in a large number of residential and utility scaled solar
PV projects around the world.
1. Company Introduction
ET modules are made by layering
low-iron-tempered glass, an EVA sticky
membrane, high conversion－efficient solar
cells and a behind-the-membrane
multi-layer backsheet. These elements are
laminated into a plate by being heated in
a vacuum. After installing the aluminum
alloy frame and wiring compartment, a
module is born (see Fig. 1)
2. Structure of module
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Company Introduction
Structure of module
Installation of modules
Installation
Mounting with Bolts
Mounting with Clamps
Anti-salt module mounting procedure
Grounding of normal modules
Fire Safety
Junction box
Output Voltage, Current and Maximum Power
Characteristics of Modules
Operation and Maintenance
Disclaimer of liability
Appendix 1：Electrical ratings of ET Solar modules
1
1
2
2
3
3
4
7
9
10
13
14
15
15
16
The photovoltaic module produces electricity when exposed to the sun or other light
sources. For your safety and the safety of others, please read the entire Installation and
Assembly Instruction manual carefully prior to installation. Please carefully read the
following installation and safety instructions. Non-compliance with these instructions may
void the module warranty.
Fig.1 Front and back sides of
ET-P660260WW module
WARNING!

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The assembly is to be mounted over a fire resistant roof covering material when roof
mounting is intended for the modules, the fire resistance of roof covering or wall
should be rated for the application.
A torsion and corrosion-resistant anodized aluminum frame ensures dependable
performance, even under harsh weather conditions. Eight pre-drilled mounting holes,
located on the aluminum alloy frame, are provided for ease of installation. They are
designed to be used with metric M6×1(Torque 12 Lb-in) stainless steel screws.
The module must be attached and supported by at least four bolts through the
indicated mounting holes.
Most installations will use the four inner mounting holes on the module frame.
Depending on the local wind and snow loads, additional mounting points may be
required(e.g. if the combined wind and snow load is as high as 5400pa, please use
eight bolts).
If module clamps are used to secure the module, the torque on the clamp bolt
should be around 8–10 Nm.
A minimum of four module clamps should be used, two on each long frame side, in
the general clamping areas denoted by the wide arrows on the drawing.
Depending on the local wind and snow loads, additional module clamps may be
required(e.g. if the combined wind and snow load is as high as 5400pa, please use
eight clamps).
When installing the modules, the face of the units should be placed where they are
highly exposed to the sun. It is recommended that the modules usually face the
equator; thus, in the Northern Hemisphere the surface should be oriented towards the
south, and in the Southern Hemisphere, towards the north. Usually the angle between
modules and the ground should be local latitude ± (5°~10°) as shown in Fig.2.
The recommended standoff height is 5 in. (127mm).If other mounting means are
employed this may affect the UL Listing.
The specific angle depends on the sunlight condition, local climate and the actual
application requirements. The appropriate angle of elevation has a very important
relationship to the output power of the modules and the cost of the construction. The
surface of the modules should avoid shading and be kept clean from foreign
materials such as dirt.
3. Installation of modules
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3.1.1 Mounting with Bolts
3.1.2 Mounting with Clamps
WARNING!
3.1 Installation
Do not attempt to clean a module with a broken glass cover or a perforated
backsheet. Such a module can present a serious shock hazard. WARNING!
The local shading of modules may cause serious hot-spots and damage the modules.
The modules are for use in applications where they do not serve as a member of the
building primary structural frame.
Fig.2 Assembly installation angle

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1) Before the installation of each module, clean the frame installation area (35mm by
100mm surrounding the grounding hole) and keep it dry.
2) Choose either one of the two options described in the diagrams above to properly
ground the module.
3) Spray varnish on the yellow portion of the diagram covering the entire grounding
area. We recommend fluorocarbon varnish.
For mounting system with bolts, refer to picture 1 and 2.
For photovoltaic systems to be installed near the coastline, we recommend using ET
SOLAR Anti-salt modules with the following installation action items.
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3.1.3 Anti-salt module mounting procedure
Mainstream Grounding Methods:
Grounding System Installation Steps:
Recommended mounting methods
Grounding bolt
Grounding wire
Fluorocarbon paint
Fluorocarbon paint
Grounding wire ring
Grounding wire
Option 2
Hexagonal screw
Plain washer
Elastic washer
Insulation gasket
Picture1 Picture 2
Fig. 3 Module mounting with clamps

For mounting system with clamps, refer to picture 3 and 4.
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To ensure optimum modules performance at project sites near the coastline, we
recommend the following maintenance services once every 3 months:
Inspect the frames, mounting systems, grounding holes and other easily corrodible
areas.
Clean the frames, mounting systems, grounding holes and other areas subject to dust
and salt accumulations.
To maintain and repair installation sites that are rusty and corroded:
Clean up the dust and salt accumulations around the rusty areas.
Spray fluorocarbon varnish on all installations and rusty areas. Make sure that no area
is missed.
For other operation and maintenance guidance, please refer to near-coast
installation standard.
Maintenance
3.1.4 Grounding of normal modules
Attentions
Aside from components that are parts of the grounding circuit, all other components
should be insulated from the module frames using non-conductive gaskets.
For fluorocarbon varnish or other chemicals, please follow the instructions strictly,
personal protective equipment (such as goggle, mask, gloves etc) may be needed
during the operation.
No photovoltaic module should be installed within 50 meters from the edge of the
coastline.
In areas between 50 meters and 500 meters from the edge of the nearest coastline,
we recommend ET SOLAR Anti-salt Modules to be used in photovoltaic energy systems
installations.
In areas greater than 500 meters from the edge of the nearest coastline, we
recommend conventional modules to be used in photovoltaic energy systems
installations.
Except for equipment grounding, ET Solar recommends the negative pole of PV module
array is connected to earth during all PV system installations. That will keep optimal
performance of PV Power Plants, which are located in a hot, high humidity climate and
high Maximum System Voltage.
All permanently mounted modules have to be provided with appropriate grounding. The
grounding lug should be suitable for outdoor use with aluminum.The grounding method of
the frame of arrays shall comply with the NEC, article 250 and also meet UL 1703
standard. Lay-in-Lug ground part with 32 threads per inch (e.g., the lay-in-lug with UL file
number E34440, part # GBL-4DBT) should be mounted to one of the 4 mm diameter
grounding holes marked as grounding hole on the frame.
Picture
3 Picture 4
Briquetting
Nut
Plain washer
Bolt
Insulation gasket
1)
2)
1)
2)
3)

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8 9
When the module system is used, it should be connected to the ground reliably. The
ground wire should be a naked copper wire with surface coating only and with no
insulation jacket. The area of cross-section of wire should be sized in accordance with the
prime current carrying conductor. The area of cross-section of wire should meet the NEC,
article 250. Installation in Canada shall be in accordance with CSA C22.1, Safety
Standard for Electrical Installations, Canadian Electrical Code, Part 1 ( refer Figure 4) .
The lay-in grounding lug, manufactured by ILSCO, type GBL-4DBT installed to frame using
stainless steel screw, secured to hole opening by star washer, flat washer, split washer and
nut, All hardware used is stainless steel. The starwasher is used to break the coating of
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the frame to obtain reliable grounding termination. Recommended stainless steel screw
assembly torque is 13.5 lb.inch(1.5 N.m), Next, insert the grounding wire (10-12AWG
exposed copper wire is recommended) to the feet of the lug, and screw down the slotted
screw(recommended torque is 13.5 lb.inch(1.5 N.m)). Be careful not to damage the wire
copper.
Consult your local authority for guidelines and requirements for building or structural fire
safety.
Roof constructions and installations may affect the fire safety of a building; improper
installation may create hazards in the event of a fire.
Fig.4 PV module grounding with lay in lug (Φ4mm grounding holes)
Fig.5 Module to grounding rod
3.2 Fire Safety

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Connectors provided by different suppliers will not mutually match up.Different
connectors provided by one supplier will not match up either.Only one type of the same
connector from one supplier should be used to ensure the reliability of the electrical
connection.
Use components such as ground fault circuit breakers and fuses as required by local
authority.Do not use panels near equipment or in places where flammable gases may be
generated.
The modules have been rated Fire Class C, and are suitable for mounting on to a Class A
roof. The module fire performance is type 1 rated with the special construction in below
table.
Confirm mounting slope less than 5 in/ft (127mm/305mm) to maintain a fire class rating.
Be aware of the linear thermal expansion of the module frames (the recommended
minimum distance between two modules is 1 cm).
The junction box should be fixed on the top end of the module during installation so as to
prevent the seepage of rain.
ET Solar provides a wiring type box. When the integrated J-box is adopted, no tool is
necessary for wiring. Just connect the modules in series according to “＋” or “-” . You can
complete complex series and parallel connection easily and quickly using different
electric connectors provided by your supplier.
3.3 Junction box
All Models
Superstrate:
3.2mm≤thickness≤4.36mm;
Encapsulant:
0.25mm≤thickness≤thickness of
Item 2b in 4.0;
Substrate: thickness of item 15f
in 4.0≤thickness≤0.64mm
Type 1
Module Model Specific Construction Module Type
Module Male
connector
Female
connector
Manufacturer Notes
ET-P654 series
ET-P648 series
ET-P636 series
1394461-2
PV-KST4
TL-Cable01M
QC4.10
H4
PV-JM601M
A6-2
1394462-4
PV-KBT4
TL-Cable01F
QC4.10
H4
PV-JM601F
A6-3
Tyco Electronics
Multi-Contact
Zhenjiang Tongling
QC Solar
Amphenol
Zhejiang Jaming
T-Conn Precision
12AWG
wire
ET-P672series
ET-P660 series
ET-M660 series
ET-M672 series
1394461-2
PV-KST4
TL-Cable01M
QC4.10
H4
PV-JM601M
A6-2
SL4-11(Male)
1394462-4
PV-KBT4
TL-Cable01F
QC4.10
H4
PV-JM601F
A6-3
SL4-11(Female)
Tyco Electronics
Multi-Contact
Zhenjiang Tongling
QC Solar
Amphenol
Zhejiang Jaming
T-Conn Precision
Dongguan Zerun
12AWG
wire
ET-M572 series
ET-M536 series
PV-KST3
TL-Cable01M
QC4.10
H4
PV-KBT3
TL-Cable01F
QC4.10
H4
Multi-Contact USA
Zhenjiang Tongling
QC Solar
Amphenol
12AWG
wire

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There are other options in addition to using a wiring type junction box only consisting of
two terminals marked with "+" and "-" to represent the positive and negative terminals of
the power supply. Some junction boxes include three or more terminals. Only those
terminals indicated with "+" and "-" should be connected to the load. The others are
designed for the bypass diodes to reduce the damage to modules caused by hot spots
and to ensure undisrupted electrical energy output from the array. The hex nut in the exit
position on the junction box is used to hold a rubber ring to seal the box.
When disconnecting the connectors of a photovoltaic module in a module array that is
exposed to sunlight, electric arcs may result. Such arcs may cause burns and fires.
Therefore, PV system commissioning and maintenance must be performed by a qualified
electrician in accordance with the NEC. Before disconnecting a module in a solar array,
disconnect the string of module from the DC Disconnect at the inverter side, and then
fully cover the module with an opaque material. Do not short the positive and the
negative connectors of a module exposed to sunlight.
The specification of wire for the electric coupler that ET Solar provides is 1 x 4.0mm².
Equivalent wire should be used if the user prefers to use his own wire. When the module’ s
rated current is lower, 12AWG wire is recommended for use, and the strength of the wire
should be taken into consideration. ET Solar does not provide any output wiring for
module installation.
The modules will generate electrical energy under sunlight and otherlight sources.
Refer to Section 690-8 of the National Electrical Code for an additional multiplying factor
of 125 percent (80 percent derating) which may be applicable.
ET Solar modules are designed to use copper wire only. The Wiring used is UL listed,
rated 1000 V/600V, temperature rating 90 ° C ,wet or dry, Sunlight Resistant, 12 AWG, Type
PV Wire.
The installation in Canada shall be in accordance with CSA C22.1, Safety standard for
electrical installations,Canadian Electrical Code, Part 1.
WARNING!
Wiring must only be completed by a qualified engineer with suitabletools.
The open-circuit voltage (Voc), short-circuit current (Isc) and maximal power (Pmax) are
printed on the PET label on the backside of the module. The electrical characteristics are
within ±10 percent of the indicated values of Isc, Voc and Pmax under standard
test conditions (irradiance of 100 mW/cm², AM1.5 spectrum, and a cell temperature of
25°C (77°F)).
Under normal conditions, a photovoltaic module is likely to experience conditions that
produce more current and/or voltage than reported at standard test conditions.
Accordingly, the values of Isc and Voc marked on this 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 the PV output. If modules are to be installed in
parallel (electrically), each module (or series string of modules so connected) shall be
provided with the maximum series fuse as specified.
3.4 Output Voltage, Current and Maximum Power
WARNING!
In order to avoid electric shock and scalding, it is necessary to cover the surface of the
module with a suitable material to prevent incidental light contacting the modules
during the connection process.

4. Characteristics of Modules 5. Operation and Maintenance
6. Disclaimer of liability
ET Solar module users should rinse the array seasonally or as needed in dry, dirty areas to
improve the performance of their solar electrical systems. Heavily soiled modules will have
a decrease in performance due to reduced light on the photovoltaic cells. Studies by the
PVUSA in Davis, CA estimate that during a dry year module soiling may affect
performance by as much as 7% annually with no cleaning. Seasonal rains often clean the
modules.However, during the long dry summer, it is helpful to rinse the modules as
needed.
ET solar modules may be rinsed with clean water to remove dirt. Normal pressure from a
standard residential hose and nozzle is recommended. Early morning and late afternoons
are favorable times to clean to avoid a sudden change in temperature. Care must be
taken since modules produce energy any time light is present. Modules are not to be
touched or walked on except by a licensed professional.
Because the use of this manual and the conditions or methods of installation, operation,
use and maintenance of photovoltaic products are beyond ET Solar's control, ET Solar
does not accept responsibility and expressly disclaims liability for loss, damage, or
expense arising out of or in any way connected with such installation, operation, use or
maintenance. No responsibility is assumed by ET Solar for any infringement of patents or
other rights of third parties, which may result from use of the PV product. No license is
granted by implication or otherwise under any patent or patent rights.
The information in this manual is based on ET Solar's knowledge and experience and is
believed to be reliable, but such information including product specification (without
limitations) and suggestions does not constitute a warranty, expressed or implied. ET Solar
reserves the right to change the manual, the product, the specifications, or product
information sheets without prior notice.
The array consists of modules in series and parallel and has a similar electrical curve to
that of a single module. In order to output maximum electrical power to the load, try to
make the impedance of the load match the electric performance of the module or
array. In order to maintain the stability of the system, also pay attention to the changes in
the electric curve of modules, especially under weak light. In more complex control
circuits, the controller supplier may have already adopted microprocessors for the
tracking of maximum power output. For the best impedance matching and the best
tracking of maximum power output, please refer to other relevant documents regarding
these issues.
Electrical ratings of ET Solar modules are shown in Appendix 1. For the detailed
specifications, please refer to the module datasheet.
Usually the load of the modules is a group of batteries. To prevent the modules from
being charged by batteries under the circumstance of no sunlight, it is important to add
a shut-off diode in series. Also, please consider the voltage decrease of PN junction of
about 0.7V when connecting the shut-off diode. The modules can withstand for a
maximum positive or negative design loading of 45 lbs / ft².
The environmental temperature may also affect the modules’ output power. If the
environmental temperature goes up, the short-circuit current will increase a little, while
open-circuit voltage will decrease, which will result in a decrease in the module’ s output
power. Therefore, a lower environmental temperature is most appropriate for the module.
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WARNING!
The product is designed as a plain plate type that should not be irradiated directly
under concentrated light.

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Appendix 1：Electrical ratings of ET Solar modules
Module
Family Model Type
Open
circuit
voltage
at
STC(Vdc)
Short
circuit
current
at
STC(Adc)
Rated
Voltage
at STC
(Vdc)
Rated
current
at
STC(Adc)
Rated
maximum
power at
STC(watts)
Maxi
mum
series
fuse(A)
ET Mono,
ET-M536
series
ET-M53640xx 21.96 2.54 17.68 2.27 40
5
ET-M53670xx 21.45 4.45 16.9 4.14 70
8
ET-M53675xx 21.73 4.72 17.4 4.31 75
ET-M53680xx 21.88 4.98 17.64 4.54 80
ET-M53685xx 22.66 5.12 18.05 4.71 85
ET Mono,
ET-M572
series
ET-M572155xx 43.3 4.98 35.2 4.4 155
10
ET-M572160xx 43.9 5.07 35.26 4.49 160
ET-M572165xx 44.12 5.19 35.68 4.6 165
ET-M572170xx 44.16 5.3 36.13 4.71 170
ET-M572175xx 44.25 5.5 36.24 4.83 175
ET-M572180xx 44.6 5.61 36.3 4.95 180
ET-M572185xx 44.6 5.8 36.3 5.09 185
ET-M572190xx 44.85 5.64 36.89 5.15 190
ET-M572195xx 45.2 5.75 37.43 5.21 195
ET-M572200xx 45.45 5.87 37.88 5.28 200
ET-M572205xx 45.53 5.99 37.95 5.4 205
ET Mono,
ET-M660
series
ET-M660260xx 38.22 9.01 30.63 8.49 260
15
ET-M660265xx 38.29 9.10 30.64 8.65 265
ET-M660270xx 38.68 9.12 30.83 8.76 270
ET-M660275xx 39.08 9.14 30.97 8.88 275
ET-M660280xx 39.26 9.23 31.01 9.03 280
ET-M660285xx 39.18 9.46 31.85 8.95 285
ET-M660290xx 39.68 9.59 32.12 9.03 290
ET-M660295xx 39.78 9.65 32.35 9.12 295
ET-M660300xx 39.97 9.69 32.54 9.22 300
ET-M660305xx 40.26 9.78 32.76 9.31 305
ET Mono,
ET-M672
series
ET-M672310xx 45.40 8.97 36.60 8.47 310
ET-M672315xx 45.91 9.01 36.72 8.58 315
ET-M672320xx 46.31 9.08 37.00 8.65 320
ET-M672325xx 46.54 9.11 37.11 8.76 325
ET-M672330xx 46.64 9.29 37.55 8.79 330
ET-M672335xx 46.75 9.33 37.94 8.83 335
ET-M672340xx 46.91 9.41 38.17 8.91 340
ET-M672345xx 47.13 9.48 38.38 8.99 345
ET-M672350xx 47.64 9.59 38.51 9.09 350
ET-M672355xx 47.74 9.65 38.93 9.12 355
ET-M672360xx 47.96 9.69 39.05 9.22 360
ET-M672365xx 48.22 9.77 39.38 9.27 365
ET-M672370xx 48.45 9.88 39.70 9.32 370
ET Poly,
ET-P636
series
ET-P636115xx 21.75 7.55 17.2 6.68 115
ET-P636120xx 21.75 7.63 17.4 6.89 120
ET-P636125xx 21.75 7.8 17.4 7.18 125
ET-P636130xx 21.75 8.1 17.41 7.47 130
ET-P636135xx 21.96 8.41 17.6 7.67 135
ET-P636140xx 22.54 8.42 17.95 7.8 140
ET Poly,
ET-P648
series
ET-P648180xx 29.34 8.25 23.66 7.61 180
ET-P648185xx 29.75 8.38 23.75 7.79 185
ET-P648190xx 29.81 8.63 23.86 7.96 190
ET-P648195xx 29.83 8.82 23.93 8.15 195
ET-P648200xx 30.06 8.92 24.1 8.3 200
ET-P648205xx 30.31 9.04 24.35 8.42 205
ET-P648210xx 30.34 9.17 24.5 8.57 210
ET-P648215xx 30.71 9.28 24.74 8.69 215
ET-P648220xx 31.07 9.35 25.06 8.78 220
ET-P648225xx 31.27 9.47 25.42 8.85 225
ET-P648230xx 31.68 9.58 25.76 8.93 230
ET Poly,
ET-P654
series
ET-P654180xx 32.35 7.6 26.45 6.81 180
ET-P654185xx 32.3 7.7 26.45 6.99 185
ET-P654190xx 32.5 7.72 26.78 7.1 190
ET-P654195xx 32.75 7.98 27 7.22 195
ET-P654200xx 32.72 7.86 27.21 7.36 200
ET-P654205xx 32.8 8.1 27.3 7.5 205
ET-P654210xx 32.83 8.3 27.54 7.63 210
ET-P654215xx 33.2 8.5 27.54 7.81 215
ET-P654220xx 33.2 8.8 27.54 7.98 220
ET-P654225xx 33.7 8.78 28.33 7.94 225
ET Poly,
ET-P660
series
ET-P660235xx 37.18 8.5 29.83 7.88 235
ET-P660240xx 37.27 8.68 29.96 8.02 240
ET-P660245xx 37.26 8.82 29.81 8.22 245
ET-P660250xx 37.58 8.88 30.12 8.3 250
ET-P660255xx 37.89 9 30.29 8.42 255
ET-P660260xx 38.16 9.07 30.59 8.5 260
ET-P660265xx 38.29 9.24 30.74 8.62 265
ET-P660270xx 38.72 9.31 30.97 8.72 270
ET-P660275xx 38.92 9.35 31.32 8.78 275
ET-P660280xx 39.16 9.47 31.68 8.84 280
ET Poly,
ET-P672
series
ET-P672285xx 44.65 8.58 35.86 7.95 285
ET-P672290xx 44.75 8.75 35.92 8.08 290
ET-P672295xx 44.92 8.82 36.02 8.19 295
ET-P672300xx 45.1 8.99 35.68 8.41 300
ET-P672305xx 45.18 9.04 36.23 8.42 305
ET-P672310xx 45.65 9.08 36.54 8.49 310
ET-P672315xx 45.75 9.12 36.81 8.56 315
ET-P672320xx 45.94 9.24 37.13 8.62 320
ET-P672325xx 46.31 9.28 37.28 8.72 325
ET-P672330xx 46.65 9.35 37.58 8.78 330
ET-P672335xx 46.83 9.47 37.9 8.84 335
Note：
xx can cover one or multiple model following:
WW/WB/BB/WWZ/WBZ/BBZ/WWG/WWGZ/WBG/WBGZ/BBZ/BBGZ/WWCO/WBCO/BBCO.