ECO-WORTHY 5w Solar Panel Kit Installation Guide
- June 11, 2024
- ECO-WORTHY
Table of Contents
Solar Panel
Installation Guide
For 5w, 10w, 25w, 50w Modules
Safety Caution
– Disclaimer
For the use of this manual and the conditions or methods of installation,
operation, use, and maintenance of photovoltaic (PV) product are beyond ECO-
WORTHY’s control, ECO-WORTHY does not accept responsibility and expressly
disclaims liability for any loss, damage, or expense arising out of or in any
way connected with such installation, operation, use or maintenance.
No responsibility is assumed by ECO-WORTHY for any infringement of patents or
other rights of third parties, which may result from the 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 ECO-WORTHY’s
knowledge and experience and is believed to be reliable, but such information
including product specification (without limitations) and suggestions do not
constitute a warranty, expresses or implied.
ECO-WORTHY reserves the right to change the manual, the PV products, the
specifications, or product information sheets without prior notice.
– General safety
Installing solar photovoltaic systems may require specialized skills and
knowledge. Installation should be performed only by qualified personnel.
The installer should assume the risk of all injury that might occur during
installation, including, without limitation, the risk of electric shock. One
individual module may generate DC voltages greater than 30 volts when exposed
to direct sunlight. Contact with a DC voltage of 30V or more is potentially
hazardous. When disconnecting wires connected to a photovoltaic module that is
exposed to sunlight, an electric arc may result. Such arcs may cause burns,
may start fires and may otherwise create problems. Therefore, be extremely
careful!
Solar module is an electrical device that converts the energy of light
directly into electricity by the photovoltaic effect, which is a physical and
chemical phenomenon. It is designed for outdoor uses. Solar module may be
mounted on the graoud, roof, vehicles, boats, etc. Proper design of support
structures is the responsibility of the system designer and installer.
- Do not attempt to disassemble the module, and do not remove any attached nameplates or components.
- When installing the Solar panel, abide with all local, regional and national statutory regulations. Obtain a building permit when necessary. Abide with any local and national regulations when mounting on vehicles or boats.
- Disconnect all power sources before carrying out the installation.
- Use properly insulated tools and remove metal items such as rings, bracelets, and watches.
- Make sure all wire connections are tight and secure, loose connections may cause sparks and intermittent behavior.
Module Mounting
– Mounting holes
– Brackets using
When mounting a panel using Z-Brackets, a well-nut (also known as “expansion
nut”) is often used on a pre-drilled hole. This procedure safely secures the
panel on thin cabin roofs or RV roofs. Using a well-nut is recommended, as the
rubber expansion prevents water leakage. (The Z-Bracket set does not include
well nuts)
Step 1: Attach the Z-brackets to the panels
Attach the Z-Bracket to the solar panel by the pre-drilled mounting holes on
the back of the solar panel. Solar Panels have two mounting holes on each
side.
Step2 ：Mark and drill holes
With the Z-Brackets attached to the frame, the panel can be laid on a mounting
surface, making it easier to mark the holes for the well-nut.
Step 3: Install the panel on the roof
The picture below illustrates the correct way to use the well-nut. The rubber
flange has to be flushed on the roofline. The Z-Bracket, along with the flat
washer and lock washer, holds the well-nut in place when the screw is
fastened.
Gently insert the well-nut into the drilled hole. Be careful not to push the well-nut flange completely into the holes. Make sure the flange is flushed on the roofline. Before attaching the panel to the roof, a film of caulk can be laid between the roof and the Z-Bracket. Even though the well-nut provides a watertight bond, this provides additional sealant.
General Wiring
– Panels connection
Each ECO-WORTHY Solar Panel has a pair of wire attached to the junction box,
if you need to connect the panel with others, strip out its copper wires from
the insulation.
(Note: some panel’s cables are equipped with SAE connector, which is designed
for battery connection, unable to be connected with other panels directly.)
For series connections, connect one panel’s positive cable to the other’s negative one.
For parallel connections, connect one panel’s positive cable to the other’s positive one, extension cable is allowed to used, if required.
– Wiring to solar charge controller
For charging the batteries safely, a solar charge controller usually be placed
in between the solar panels array and the battery bank.
When connecting the solar panel(s) to the controller, a pair of MC4-copper
wire is required (Not included in the solar panel package). Plug the MC4
connectors with panel’s cables, and the bare wire end to controller input
ports.
Testing and Troubleshooting
– Testing
Test all electrical and electronic components of your system before
commissioning it. Follow the instructions in the guides supplied with the
components and equipment.
- Test modules connected in series before they are connected to the system.
- To determine Voc and Isc in the following tests, the module(s) must be exposed to the sun and not connected to a load. Observe personal safety when making these measurements.
- Check the open-circuit voltage (Voc) of every series module using a digital multimeter. The measured system Voc should correspond to the sum of the Vocs of the individual module. You will find the rated voltage in the technical specifications of the specific module. If the measured value is significantly lower than the expected value, proceed as described under “Troubleshooting an low voltage”.
- Determine the short-circuit current (Isc) of every series circuit. It can be measured directly by connecting the digital multimeter to the two terminals of the series circuit or module. Attention, the rated scale of the ammeter or the rated current of load should be more than 1.25 times of the rated short-circuit current of the series module. You will find the rated current data in the technical specifications sheet. The measured value can vary significantly, depending on weather conditions, the time of day, and the shading of the module.
Troubleshooting a low voltage
To identify the commonly low voltage and excessively low voltage, the commonly
low voltage mentioned here is the decrease of open-circuit voltage of the
module, which is caused by the temperature rising of solar cells or lower
irradiance. Excessively low voltage is typically caused by improper
connections of the terminals or defective bypass diodes.
- First, check all wiring connections to see if it is not open-circuit or is not connected well.
- Check the open-circuit voltage of each module
- Disconnect the wiring at both terminals of the modules.
- If the measured voltage is only half of the rate, this indicates a defective bypass diode. By replacing or remove the diode, the issue may be sorted. Removing the bypass diodes should only be done by a competent PV technician and the module has to be disconnected from the system.
In the case of fine irradiance, if the voltage across the terminals differs from the rated value by more than 15%, this indicates a bad electrical connection.
Maintenance
The following maintenance is recommended to ensure optimum performance and longevity of the solar panel:
- Clean the glass surface of the solar panel when necessary. Always use water and a soft sponge or cloth for cleaning. A mild, non-abrasive cleaning agent can be used to remove dirt.
- Check the electrical and mechanical connections every six months to verify that they are clean, secure and undamaged.
- Inspect the solar panels and make sure the surfaces are free from dust, dirt, and other debris; clean with a wet cloth or glass cleaner if necessary.
- Check to make sure all structural components, mechanical fasteners, and electrical connections are secure, clean, and corrosion-free.
- Check and replace damaged components if necessary
Support
This product is covered by a 1 year warranty provided by ECO-WORTHY Ltd. We
will refund or partial refund or replace any products with defects due to our
imprudence.
If you are experiencing technical problems and cannot find a solution in this
manual, please contact ECO-WORTHY for further assistance.
Contact number:
US 1-866-939-8222
UK +44 20 7570 0328
Email: [email protected]
Documents / Resources
| ECO-
WORTHY 5w Solar Panel
Kit
[pdf] Installation Guide
5w, 10w, 25w, 50w, 5w Solar Panel Kit, Solar Panel Kit, Panel Kit
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