SUNOVA SOLAR 202206001 Photovoltaic Modules Installation Guide
- June 13, 2024
- SUNOVA SOLAR
Table of Contents
SUNOVA SOLAR 202206001 Photovoltaic Modules
Product Information
The SUNOVA Photovoltaic Module is a mono facial module with the model number 202206001. It features PV modules with half-cut 186mm TOPCon monocrystalline silicon solar cells. The module comes in two variants: SS-xxx-54MDH(T) with 108 cells, where xxx represents a range of values from 430 to 445 in increments of 5.
Safety
It is important to follow the safety guidelines provided for the
installation of the SUNOVA Photovoltaic Module. The user manual includes
general safety precautions, handling safety instructions, and installation
safety guidelines.
Product Identification
The product identification section provides information on how to identify
the SUNOVA Photovoltaic Module.
Mechanical Installation
The mechanical installation section provides instructions for installing
the module. It includes general installation principles, location, and angle
selection guidelines. The manual advises avoiding shading caused by trees,
buildings, or obstructions as it can result in hot spots and loss of output.
It also warns against installing the module near naked flames, flammable
materials, or in areas exposed to constant water. The manual provides
information on screw installation, including the number of installed holes and
mechanical load design. It also explains clamp installation with detailed
tables and drawings specifying clamp lengths, dimensions, and design loads.
Electrical Installation
The electrical installation section provides guidelines for wiring
components compatible with the PV modules. It advises ensuring that PV modules
connected in series have similar currents and that the Voc (open-circuit
voltage) of one PV string does not exceed the maximum system voltage marked on
the label. Temperature coefficients and extreme temperature conditions should
be considered for Voc and Isc (short-circuit current) calculations. The manual
recommends a maximum number of modules for series and parallel connections
under specific circumstances. It also suggests referring to local regulations
for system wire size, type, and temperature. The manual emphasizes the
importance of consulting a qualified system designer or integrator for system
design and obtaining necessary permits, inspections, and approvals from the
local utility.
Grounding
The grounding section advises following the grounding device manufacturer’s
instructions when using common grounding hardware for attaching a listed
grounding/bonding device.
Product Usage Instructions
To install the SUNOVA Photovoltaic Module, follow these steps:
- Ensure you have read and understood the safety guidelines provided in the user manual.
- Identify the SUNOVA Photovoltaic Module using the information provided in the product identification section.
- Choose an installation location that avoids shading from trees, buildings, or obstructions. This helps prevent hot spots and loss of output. Avoid installing the module near naked flames, flammable materials, or in areas exposed to constant water.
- For screw installation, refer to Table 1 in the manual for the number of installed holes and Drawing 1 for the design mechanical load. Install the screws accordingly.
- For clamp installation, refer to Table 2 for clamps at the long sides of frames and Table 3 for clamps at the short sides of frames. Install the clamps using the provided dimensions and design loads.
- Follow the guidelines provided in the electrical installation section for wiring components compatible with the PV modules. Ensure PV modules connected in series have similar currents and that Voc does not exceed the maximum system voltage. Consider temperature coefficients and extreme temperature conditions for Voc and Isc calculations.
- Refer to the recommended maximum number of modules for series and parallel connections based on specific circumstances.
- Consult a qualified system designer or integrator for system design and obtain necessary permits, inspections, and approvals from the local utility.
- Follow the grounding instructions provided in the manual when using common grounding hardware to attach a listed grounding/bonding device.
PURPOSE OF THIS GUIDE
Thanks for choosing Sunova Photovoltaic Modules (hereafter referred to as “PV Module”), this Guide is to give information on how to apply Sunova PV modules properly. Installers must read and understand this Guide prior to installation. For any questions, please contact our technical department (info @sunova-solar.com) for further information. Installers should follow all safety precautions described in this Guide as well as local codes when installing a module. Keep this Guide in a safe place for future reference (care and maintenance) and in case of sale or disposal of the PV modules.
APPLICABLE PRODUCTS
This document is applicable to the series of PV modules as listed below:
PV Modules with 182mm Mono-crystalline Silicon Half-cut Solar Cells：
- 156 cells: SS-xxx-78MDH (xxx = 565-595, in increments of 5)
- 144 cells: SS-xxx-72MDH (xxx = 520-565, in increments of 5)
- 132 cells: SS-xxx-66MDH (xxx = 480-515, in increments of 5)
- 120 cells: SS-xxx-60MDH (xxx = 435-470, in increment of 5) 108 cells: SS-xxx-54MDH (xxx = 395-420, in increment of 5)
PV Modules with Half-cut 182mm TOPCon Mono-crystalline Silicon Solar Cells:
- 156 cells: SS-xxx-78MDH(T) (xxx = 605-630, in increment of 5)
- 144 cells: SS-xxx-72MDH(T) (xxx = 560-580, in increment of 5)
- 132 cells: SS-xxx-66MDH(T) (xxx = 510-530,in increment of 5)
- 120 cells: SS-xxx-60MDH(T) (xxx = 465-485, in increment of 5)
- 108 cells: SS-xxx-54MDH(T) (xxx = 420-435, in increment of 5)
PV Modules with Half-cut 186mm TOPCon Mono-crystalline Silicon Solar Cells:
- 108 cells: SS-xxx-54MDH(T) (xxx = 430-445, in increment of 5)
SAFETY
GENERAL SAFETY
- The PV modules are qualified for application class A, which may be used in systems operating at greater than 50V DC or 240W, where general contact access is anticipated. PV modules qualified for safety through this part of IEC 61730 and IEC 61730-2 and within this application class are considered to meet the requirements for safety class II.
- The PV modules shall be properly grounded in accordance with the instructions in this Guide or the requirements of the National Electrical Code.
- Installing PV modules requires specialized skills and knowledge. Installation should only be performed by qualified personnel, electrical connections require a licensed electrician, where applicable according to local code and law (i.e. the NEC for the USA and CEC for Canada).
- Installers should assume all risks of injury that might occur during installation, including, but not limited to, the risk of electric shock.
- One single PV module may generate more than 30V DC when exposed to direct sunlight. Access to a DC voltage of 30V or more is potentially hazardous.
- PV modules convert light energy to DC electrical energy, which are designed for outdoor use. PV modules can be mounted onto the ground, rooftops, vehicles or boats etc. The proper design of support structures lies within the responsibility of the system designers and installers.
- Do not use mirrors or other magnifiers to concentrate sunlight onto the PV modules.
- When installing the PV modules, abide to all local, regional and national statutory regulations. Obtain a building permit if necessary.
- Only use equipment, connectors, wiring and support frames compatible with the PV modules.
- Do not clean the modules with chemicals.
HANDLING SAFETY
- Do not lift the PV module by grasping the module’s junction box or electrical leads.
- Do not stand or step on the PV modules or place heavy objects onto it.
- Do not drop the PV module or allow objects to fall on the PV module.
- Do handle with care when moving, transporting, and installing the PV modules.
- Do not attempt to disassemble the PV modules, and do not remove any attached nameplates or components from the PV modules.
- Do not apply paint or adhesive to the PV module’s top surface.
- Do not scratch or hit the back sheet.
- Do not drill holes in the frame. This may reduce the frame’s mechanical strength and cause crack cells due to vibration.
- Do not break the anodized coating of the frame (except for the grounding connection), this may cause corrosion of the frame.
- Do not use PV modules with broken glass or torn back sheet which has the danger of electrical shock.
- Do not handle panels in wet conditions unless they have appropriate protection.
- Do not expose PV module to sunlight until installation to avoid unnecessary degradation.
- During all the transportation, please make sure there is no strenuous vibration on the module. Because it may cause cell micro cracks or damage the module.
INSTALLATION SAFETY
- Installation shall be in conformity with IEC standard, Safety Standard for Electrical Installations.
- Do not disconnect under load.
- Do not touch conductive parts of PV modules, such as terminals which can result in burns, sparks, and lethal shock whether or not the PV module is connected.
- Do not touch the PV module unnecessarily during installation.
- Do not work in the rain, snow or windy conditions.
- Do not expose the artificial sunlight to PV modules. Completely cover the PV module with an opaque material during installation to prevent electricity from being generated.
- Do not wear metallic rings, watchbands, ear, nose, lip rings, or other metallic objects while installing or troubleshooting.
- Only use insulated tools that are qualified for working on electrical installations.
- Follow the safety regulations for all other system components, including wires and cables, connectors, charging regulators, inverters, storage batteries, rechargeable batteries, etc.
- Under normal outdoor conditions, the current and voltage generated will be different from those listed on the datasheet. When designing systems, current and short-circuit current should be multiplied by a factor of 1.25 to determine component ratings.
- Only use connectors compatible with the PV module connectors. Removing the connectors without prior authorization will invalidate the warranty.
- Do not dismantle installed modules to another project, which may invalidate the warranty.
- Do not install modules within 50m of the shoreline.
FIRE SAFETY
- The fire rating of this module is valid only if this Guide is followed.
- Consult your local authority for Guidelines and requirements for building or structural fire safety.
- Do not use PV modules near equipment or in places where flammable gases may be generated.
- Follow local codes and laws when installing the modules.
PRODUCT IDENTIFICATION
Each module has three Barcode stickers which have the same unique series No. of each module and one label sticker:
- Barcode 1: Laminated into PV modules.
- Barcode 2: Stick on the backside of PV modules.
- Barcode 3: Stick on the middle location of the long Frame side.
- Label: Stick on the backside of PV modules, containing characteristics and parameters of the PV modules.
- Check the series No. in the barcode with the packing list when unpacking.
- Provide PV module series No . when you need support from SUNOVA on particular PV modules.
MECHANICAL INSTALLATION
GENERAL INSTALLATION PRINCIPLE
- The module can be installed in both landscape and portrait modes [ 1]
- It is recommended to install the same size and the same type of module in one PV array.
- The PV modules shall be installed high enough to keep it away from potential shading, flying sands, snow, and water.
- It is recommended to install the PV modules 30 cm away from the ground/10 cm away from the rooftop to make sure ventilation.
- Appropriate installation structures shall be chosen to meet the required mechanical load.
- It is recommended to install the PV modules with a minimum angle of 10 degrees to make the dust easily washed off.
- It is recommended to keep a minimum 10mm gap between PV modules for thermal expansion of materials.
- Install PV modules appropriately according to corresponding mechanical load needs.
LOCATION AND ANGLE SELECTION
- It is recommended to install PV modules that have excellent sunlight resources. In the Northern Hemisphere, the module should typically face south, and in the Southern Hemisphere, the modules should typically face north. The most optimistic installation angle varies according to different latitudes and longitudes. The applied condition of module installation is not above 2000m altitude. Please consult experts with appropriate knowledge backgrounds when determining the installation locations and angles.
- When choosing a site, avoid trees, buildings, or obstructions, which could cast shadows on the solar photovoltaic modules. Shading causes hot spots and loss of output, even though the factory-fitted bypass diodes of the PV module will minimize such an effect.
- Do not install the PV module near naked flame or flammable materials. Do not install the PV module in a location where it would be immersed in water or constantly exposed to water from a sprinkler or fountain etc.
SCREW INSTALLATION
- Each PV module has 8 mounting holes (shown as drawing 1). The downward mechanical load resistance of the module would be different according to the installation holes used (shown as Table 1) Please use 8 of them to secure the modules to support the structure. The module frame must be attached to a mounting rail using M8 corrosion-proof screws together with spring washers and flat washers in eight symmetrical locations on the PV module. The applied torque should be big enough to fix it steadily. The reference torque value for the M8 screw is 16~20N*m.
TABLE 1
| INSTALLED HOLES USED | DESIGN MECHANICAL LOAD |
|---|---|
| 8 installation holes | 3600Pa |
| 4 installation holes (inner ones) | 1600Pa |
| --- | --- |
CLAMP INSTALLATION
The modules can be fixed on both the long and the short side of the module
within the constraints shown in drawing 2 and drawing 3, using a minimum of
four clamps.The modules are built to withstand a downward force of up to
5400Pa (550 kg/m2) or 2400 Pa (244 kg/m2) according to where they are clamped
(shown as table2 and table3), Site-specific loads such as wind or snow which
may exert forces in a different way need to be taken into consideration to
ensure this limit is not exceeded for each respective mounting option.
Install module with clamps at long sides of frames
TABLE 2
a (mm)| b (mm)| Clamp length| A
(mm)
| B
(mm)
| DESIGN Loads (Pa)|
Remark
---|---|---|---|---|---|---
2464
|
1134
|
≥50mm
|
532
|
682
| 3600(downward)|
Safety factor 1.5
1600(upward)
2279
|
1134
|
≥50mm
|
440
|
590
| 3600(downward)
1600(upward)
2094
|
1134
|
≥50mm
|
347
|
497
| 3600(downward)
1600(upward)
1903
|
1134
|
≥50mm
|
258
|
408
| 3600(downward)
1600(upward)
1722
|
1134
|
≥50mm
|
184
|
434
| 3600(downward)
1600(upward)
Install module with clamps at short sides of frame
TABLE 3
c (mm)| d (mm)|
Clamp length
| C
(mm)
| D
(mm)
| LOADS (PA)
---|---|---|---|---|---
2464| 1134| ≥50mm| 56| 280| 2400
2279| 1134| ≥50mm| 56| 280| 2400
2094| 1134| ≥50mm| 56| 280| 2400
1903| 1134| ≥50mm| 56| 280| 2400
1722| 1134| ≥50mm| 56| 280| 2400
ELECTRICAL INSTALLATION
Meaning of crossed-out wheeled dustbin:
- Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.
- Contact your local government for information regarding the collection systems available.
- If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being.
WARNING Electrical Hazard
This module produces electricity when exposed to light. Follow all applicable
electrical safety precautions.
- ONLY qualified personnel can install or perform maintenance work on these PV modules.
- BE AWARE of dangerous high DC voltage when connecting the module.
- DO NOT damage or scratch the rear surface of the module.
- DO NOT handle or install modules when they are wet.
- When replacing old appliances with new ones, the retailer is legally obligated to take back your old appliance for disposal at least free of charge.
- The wiring components shall be compatible with the PV modules.
- The PV modules connected in series shall have a similar current. The Voc of one PV string shall be no higher than the maximum system voltage (make reference to the maximum system voltage marked on the label), the Voc temperature coefficient feature and the extremely low temperature of the installation location must be taken into consideration when calculating the Voc of the PV string.
- The PV modules connected in parallel shall have similar Voltage. The Isc Temperature coefficient feature and the extremely high temperature of the installation location must be taken into consideration when calculating the Isc of the PV array.
- When designing the system, we recommend that under 1500V circumstances, the maximum number of modules shall be no more than 12pcs if connected in series; and no more than 24pcs if connected in parallel.
- Please refer to local regulations to determine the system wires’ size, type, and temperature.
- The cross-sectional area and cable connector capacity must satisfy the maximum short-circuit of the PV system (For a single component, we recommended the cross-sectional area of cables is 4mm2 and the rated current of connectors is more than 15A), otherwise, cables and connectors will become overheating for large current. Please pay attention: the temperature limit of cables is 85°C and the temperature limit of the connector is 105°C.
- A qualified system designer or integrator should always be consulted.
- Building permits, inspections, and approvals by the local utility are generally required.
GROUNDING
- Where common grounding hardware (nuts, bolts, star washers,split-ring lock washers, flat washers, and the like) is used to attach a listed grounding/bonding device, the attachment must be made in conformance with the grounding device manufacturer’s instructions.
- For grounding and bonding requirements, please refer to regional and national safety and electricity standards. If grounding is required, use a recommended connector type, or an equivalent, for the grounding wire.
- If grounding is required, the grounding wire must be properly fastened to the module frame to ensure adequate electrical connection (grounding hole shown as drawing 4).
- When the system operates in high humidity and high-temperature circumstances, a transformer-based inverter allowing system negative grounding is highly recommended to mitigate the risk of a higher power degradation rate.
MAINTENANCE
- Clean the glass surface of the module regularly with clean water and a soft sponge or cloth. A mild, non-abrasive cleaning agent may be used to remove stubborn dirt. Water with high mineral content is not recommended to clean the module.
- Check the electrical, grounding and mechanical connections every six months to verify that they are clean, secure, undamaged, and free of corrosion.
- If any problem arises, consult a professional for suggestions.
Caution : Observe the maintenance instructions for all components used in the system, such as support frames, charging regulators, inverters, batteries, etc.
PARAMETERS
The parameters may be updated from time to time,
accurate parameters please check on our website: www.sunova-
solar.com
or email our technical support team: info@sunova-solar.com
Note : This version of the TUV Installation Guide is effective from
November 2021, until it is replaced by the new version.
ElECTRICAL PARAMETERS
The electrical properties of the components were measured under standard
test conditions. In some cases, the component may produce a voltage or current
value higher or lower than the rated value.
( Note : the tolerance for Voc is ±3%, for Isc is ± 4% and for Pmp is ±3%)
Sunova Solar Technology Co., Ltd
Add: H building, Standard Plant Phase II,
Runzhou Road, Huishan District, Wuxi City, Jiangsu Province, P.R.China,214000
E-mail: info@sunova-solar.com Tel: +86
510 8595 9369 Web: www.sunova-solar.com