Goodwe GALAXY Series User manual

INSTALL ATION
MANUAL
GOODWE PVBM
UP TO A SUSTAINABLE FUTURE
GOODWE TECHNOLOGIES CO., LTD. [email protected]m
GALAXY SERIES
BMT-G3/088A
GoodWe PV Building Material Installation Manual – 20221201 Information presented is subjected to change. GoodWe reserve the final right for explanation on any of the information presented hereby.

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CONTENT
1
2
5
8
4
7
3
6
DESCRIPTION OF THE
MAIN STRUCTURE OF
GALAXY LIGHTWEIGHT
PRODUCT
INSTALLATION
MATERIALS LIST
ELECTRICAL
INSTALLATION
APPENDIX
INSTALLATION
WORK OF GALAXY
LIGHTWEIGHT
PRODUCT
CAUTIONS
PRE-INSTALLATION
INSPECTION WORK OF
GALAXY LIGHTWEIGHT
PRODUCT
ELECTRICAL
CONSTRUCTION
PROCESS
P3 P4
P13
P22
P6
P20
P5
P18

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1
DESCRIPTION OF THE MAIN STRUCTURE OF
GALAXY LIGHTWEIGHT PRODUCT
Galaxy Lightweight Product Front Installation
Altitude <2000m
Fire Protection Level:CLASS C
(IEC61730-2-MST23)
Protection Level:Level II
Maximum static load: front 5400Pa; back 2400Pa
TPO waterproof membrane
Junction box
M10 mono PERC half cell

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2.1 CONSTRUCTION TOOLS LIST
2.2 ELECTRICAL TOOLS LIST
PS：This list only indicates the main tools required for the installation of Galaxy Lightweight
Product structural system, excluding the tools used for the installation of the roof suppo
section and the electrical section. For the tools of release and installation of roof brackets, you
can refer to the preparation of building works.
Steel tape measure
Needle nose plier
Roller
Joint wrench
Chalk line
Wire cutter
Hot air welding gun
Wire stripping pliers
Utility knife
PV special crimping pliers
Glue gun
2
INSTALLATION TOOLS LIST

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● Please use insulated tools to reduce the risk of electric shock.
● Please adopt appropriate protective measures (non-slip gloves, work clothes, etc.) to
avoid direct contact with 30V DC or higher, and avoid direct contact with sharp edges during
installation
● Please do not wear metal ornaments during installation to avoid poking through the Galaxy
Lightweight Product and causing electric shock hazards.
● DO NOT install the product in rainy weather or strong wind.
● DO NOT allow children or unauthorized personnel to approach the installation area or the
storage area of Galaxy Lightweight Product.
● During installation or wiring of Galaxy Lightweight Product, if the circuit breaker and
overcurrent protection circuit breaker cannot be turned on or the inveer cannot be turned o,
then use an opaque material to cover the array Galaxy Lightweight Product to stop the power
output.
● Do not use or install Galaxy Lightweight Product that have been damaged.
● If the suace material is damaged or worn, direct contact with the suace of Galaxy
Lightweight Product may result in electric shock.
● Do not attempt to repair any pa of the Galaxy Lightweight product.
● The lid of the junction box should be kept closed at all times.
● Do not disassemble, modify, or move any pa of the Galaxy Lightweight product.
● Do not aicially concentrate light on Galaxy Lightweight Product.
● It is impoant to note that only one piece of product can be moved in a single operation
when installing the Galaxy products.
●Before installing Galaxy Lightweight Product, the relevant authorities should be contacted to
obtain information about the installation site and construction permits, and the requirements
for installation and inspection should be obseed.
● Check the applicable building codes to ensure that the building and its structure (roof,
exterior façade, load bearing, etc.) in which Galaxy Lightweight Product are to be installed have
adequate load-bearing capacity.
● Ensure that Galaxy Lightweight Product are installed on a reproof roof, when installing
Galaxy Lightweight Product.
● Galaxy Lightweight Product are compliant with Safety Class II. These Galaxy Lightweight
Product can be used in systems where the public is likely to be exposed to voltages greater
than 50V or power greater than 240W.
3
PRE-INSTALLATION INSPECTION WORK OF GALAXY
LIGHTWEIGHT PRODUCT
WARNING
BE CAREFUL

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● The installation suace should be at and free of pits or bumps.
● Galaxy Lightweight Product must not be installed near ames or combustible objects.
● Galaxy Lightweight Product must not be immersed in water (pure or salt water), installed in
environments that are permanently wet (pure or salt water) (e.g. fountains, waves, etc.) or in
locations where water is likely to accumulate (e.g. potholes, drainage inlets, etc.).
● There is a risk of corrosion if Galaxy Lightweight Product are placed in salt spray (i.e., marine
environments) or environments containing sulfur (i.e., sulfur-containing sources, volcanoes,
etc.).
● Ensure that Galaxy Lightweight Product meet the overall technical requirements of the
system.
● Ensure that other system components do not cause damaging mechanical or electrical
peormance eects on Galaxy Lightweight Product.
● It is allowed to connect Galaxy Lightweight Product in series to increase the voltage or in
parallel to increase the current. When connected in series, the positive terminal of the Galaxy
Lightweight product is connected to the next negative terminal. When connected in parallel,
the positive terminal of the Galaxy Light product is connected to the positive terminal of the
next Galaxy Light product.
● To avoid (or minimize) the mismatch eect of the array, it is recommended to connect Galaxy
Lightweight products with similar electrical propeies on the same string.
● To reduce the risk of indirect lightning strikes, the system should be designed to avoid the
creation of loops.
● Galaxy Lightweight Product should be securely fastened so that they can withstand all
possible loads, including wind and snow loads.
● Seconda handling should be avoided as much as possible during the installation of Galaxy
Lightweight Product.
● Please ensure that the installation location of Galaxy Lightweight Product is free from
shading all year round, as shadows can cause a decrease in the power generation of Galaxy
Lightweight Product. Hot spots and long-term heat generation from diodes caused by frequent
shading of Galaxy Lightweight Product can aect the seice life of Galaxy
Lightweight products.
4
INSTALLATION WORK OF GALAXY LIGHTWEIGHT
PRODUCT
4.1 UNPACKING AND STACKING (STORAGE AND UNPACKING)
● To ensure the safety of Galaxy Lightweight Product during transpoation, it is better to
open the packaging box of Galaxy Lightweight product after reaching the installation site.
● Check whether the box is damaged before unpacking.
● It is advised that unpackers wear non-slip gloves in advance.
● Galaxy Lightweight Product should be stored in a d and ventilated environment.

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● Galaxy Lightweight Product must be shipped in the boxes provided by GoodWe and should
be stored in the original boxes before installation. Please protect the packaging from damage.
Follow the recommended unpacking procedure to open Galaxy Lightweight product packaging.
Careful handling is required during unpacking, transpoation and storage.
● DO NOT apply excessive loads or twist Galaxy Lightweight Product.
● DO NOT use wires or junction boxes to car Galaxy lightweight product.
● DO NOT stand, climb, walk or jump on Galaxy Lightweight Product.
● DO NOT to allow Galaxy Lightweight Product to come in contact with sharp objects;
scratches can directly aect the safety of Galaxy Lightweight Product.
● DO NOT place Galaxy Lightweight Product in an environment that is not reliably suppoed
or not xed.
● Changing the wiring of the bypass diode is prohibited.
● All electrical connectors need to be kept clean and d.
● Galaxy Lightweight Product are not allowed to be stacked at and the quantity should not
exceed 3 pieces. The junction box shall not be in direct contact with the front side.
4.2 CHECKING
● Please check whether the suace of Galaxy Lightweight Product is damaged, if there is
damage or wear on the suace of the products, please do not use the product.
● Please check whether the junction box, connectors and cables are damaged. Please do not
use the product if there is damage.
● Do NOT apply adhesives, paint, label or any other product on the suace of Galaxy
Lightweight products.
4.3 ROOF SUBSTRATE REQUIREMENTS
●The base layer application scenario includes pitched metal roof and at roof and TPO rolls
need to be laid on the base layer.
The suace of the substrate should be uniform, at and without sharp bumps or burrs, etc.
4.4 CONSTRUCTION REQUIREMENTS
●The recommended temperature of hot air gun for the welding of TPO membrane: 360~400℃ ,
● Use of environmental temperature restrictions: The TPO membrane can be used in a
geographical location where the monthly average temperature is a between -50℃ and 50℃ .
● Construction environment temperature restrictions: The substrate construction temperature
should be: -10℃ ~+60℃ . The ambient construction temperature should be: -10 ℃ ~ +60 ℃ .
The construction temperature of contact adhesives / cleaners, etc. should be > 5 ℃ . (Measures
should be taken to ensure safety when the ambient temperature is below 5 ℃ according to
relevant national regulations)

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4.5 CHALK LINE POSITIONING
● Measure the roof and determine the position of Galaxy Lightweight Product according to the
design drawings.
4.6 CARRYING
● To avoid damaging the cells, two people are required to lift the four corners of the Galaxy
Lightweight product (avoiding touching the position of the cells) at the same time when
caring it.
● The downward bending distance of Galaxy Lightweight Product should not exceed 300mm.
Please carefully position Galaxy into predestined location.
● Galaxy Lightweight Product should be carried upright as much as possible when handled
manually. Do NOT twist the product during transpoation.
● Care is required during the handling of Galaxy Lightweight Product to avoid them bumping
into the ground or other sharp, hard objects.
4.7 INSTALLATION
Metal roof with TPO membranes.
● Apply structural adhesive to ribs of TPO metal roof with maximum spacing of 400mm.
Silicone construction adhesive cross-section width ≥ 8mm, height ≥ 6mm.
● Car the product upright by grabbing the corners by two person
● Place the product cell side up to the adhesive area (Figure 1)
FIGURE 1
● Gently press the front of the product with a exible tool so that the Galaxy lightweight
product is rmly bonded to the rib of the metal roof.
● Lift the coil of Galaxy Lightweight Product slightly and use the hot air welding gun to spot
weld rst to x the Galaxy Lightweight Product on the metal roof (as in Figure 2).
TPO membrane Silicone construction adhesive Color steel tile
Galaxy Lightweight Product

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Hot air welding gun
Hot air welding gun
Color Steel TileSpot welding
Color Steel
Coil material
Coil material Roller
Galaxy Lightweight Product
Galaxy Lightweight Product
● After xing the head and tail of Galaxy Lightweight Product, use hot air welding gun along
the coil for full welding. Use roller gently on the coil for roller pressure (such as Figure 3) when
welding to ensure that the coil is welded to at roof. The eective welding width of the coil ≥
25mm, the eective welding area of the coil needs to cover in the color steel tile rib or rib slope,
if the welding area covers in the color steel tile valley area, it needs to be lled in the valley
so that the product is ush along the roof with the rib for eective welding (such as Figure 4,
Figure 5).
FIGURE 2
FIGURE 3

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Fill the valley
Slope of rib
Color steel tile rib
Color steel tile rib
Coil material Galaxy Lightweight Product
Galaxy Lightweight Product
Color steel tile valley
Color steel tile valley
Slope of rib
Fill the valley
FIGURE 4
FIGURE 5
● The distance between two adjacent Galaxy Lightweight Product is 30mm±10mm. A 300mm
construction access channel is reseed between two rows of Galaxy Lightweight Product on
the junction box side. A 170mm construction access should be reseed on the tail side of the
product. (Figure 6).
≥ 25mm
≥ 25mm