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Contents 1. Safety Caution....................................................1 2. Product Overview ................................................2 3. Components Description.........................................3 4. Installation Guide.................................................6 5. Fusing and Setting .............................................14 6. Testing and Troubleshooting...................................14 7. Maintenance ....................................................16 8. Support ..
Safety Caution Working with and installing electrical equipment is dangerous. Potential risks include hazards, electrocution and electrical fires. Solar panels generate electricity as soon as being exposed in sunlight. To avoid a shock hazard, it's better to keep the panel covered with something during installation and avoid direct contact with the output terminals. ·Observe correct polarity with all interconnections between the solarpanel, charge controller, and the battery.
Product Overview ECO-WORTHY 2000W Off-Grid Solar Power System, an electricity supply project, which is clean, quiet, and compatible with shed and house roof. The complete kit contains: ·10PCs 12V 195W Monocrystalline Solar Panels ·1PC 3500W 24V Pure-sine-wave Inverter ·1PC 60A PWM Solar Charge Controller ·2PCs 24V 100Ah Lithium Batteries ·1PC 6-String PV Combiner Box ·5 pairs of 16ft 11AWG Solar Extension Cable ·1 pair of 16ft 8AWG Solar-Controller Cable ·1 pairs of 1.
Components Description Solar Panel The solar panel is a set of solar photovoltaic modules that generate electricity based on sunlight. This system contains 20 pieces of 195W panels with monocrystalline solar cells. Electrical Data Maximum Power at STC* ① 195W Optimum Operating Voltage (Vmp) 19V Optimum Operating Current (Imp) 10.27A Open Circuit Voltage (Voc) 22.8V Short Circuit Voltage (Isc) 12.28A Module Efficiency 19.
Batteries The complete system includes 2*24V 100Ah rechargeable lithium batteries. Since the inverter requires 24V DC input, the batteries should be wired as a 24V battery bank. The total capacity of the battery bank is about 4800Wh. 24V 100Ah LiFePO4 Battery Battery Capacity Battery Power Battery Voltage Maximum Charge/ Discharge Current Charge Temperature Range Disharge Temperature Range 100ah 2560W·h 25.
16.4ft MC4-MC4 Cable 11 AWG cable with double MC4 connectors for solar array - combiner box connection 16.4ft Extension Cable 8 AWG MC4-copper cable for combiner box - inverter connection 16.4ft MC4-MC4 Cable 16.4ft Extension Cable Ring Cable Inverter Cable 5AWG cable for battery bank - inverter connection Z Mounting Brackets Mounting brackets for fixing panel to a flat surface.
Installation Guide -Setup the battery bank The inverter in this system requires a 24V battery bank for running. With 2 pieces of batteries, the connection should be: Connect 2 batteries in series to form a 24V battery bank. Method: hook up each battery’s positive terminal to the other’s negative terminal. The diagram as below: -Connect solar charge controller with battery The solar charge controller should be put indoor. After the battery bank setup accomplished, wire the controller with battery bank.
-Mount the solar panels Determine a location for the solar panel that is exposed in direct sunlight and clear of any shading such as trees, roof overhangs, etc. Ideally, the panels should be positioned to minimize the wiring distance between the solar panel and the combiner box. For Northern Hemisphere installations, the solar panels should be mounted at an angle facing true south (true north for Southern Hemisphere installations).
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) Step1: 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.
Step3: 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.
-Setup the panels array The hybrid inverter requires 24V input from the solar panels array. So the 10 panels should be wired into a 24V array. Wiring method: 1.Connect every 2 panels in series to make a 24V string Each ECO-WORTHY Solar Panel has a pair of MC4 solar cable at the back of panel that consists of male and female connectors. This type of connector uses a “snap-in” type of safety locking clips to lock the two mating connectors, making it easy to install.
2.Do the same to the other 8 pieces, so there will be 5 groups of 24V 195W solar panels total. Each group has 2 rest wires, one positive and one negative, they are the outlet cables of the string. -Connect solar strings to combiner box Use each string’s outlet cables to wire with the input ports of combiner box. There are 5 pairs of extension cable, use them to connect with the box ports. The combiner box has totally 6 string ports, only 5 ports should be occupied by the strings.
-PV output to controller After all the solar array cables get arranged into the combiner box, connect the comnbine box outlet to the solar charge controller. Use the solar-controller cable for the connection. One head to plug the combiner box’s output port, and the copper terminals to the inverter PV input port. -Inverter to appliances Before booting the inverter, the AC OUT ports should be wired with the home socket or appliances first.
-Turn on the inverter When all wirings are done, check if the battery type switcher is at Li-ion, since it’s connected with lithium battery bank. The final step is to boot the hybrid inverter by pressing the switch on its bottom.
Fusing and Setting -Fusing position The combiner box has built-in fuses for each string, so there is no need to add extra fuse in between the solar panels and combiner box, neither from the combiner box to inverter. Even though the hybrid inverter has built-in fuse, it’s better to add one fuse in between it and the battery bank. For a 24V 3500W inverter, the current it can take from the battery bank should be about 146A, so a 180A fuse is recommended.
·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.
FAQ A1:The hybrid inverter is not working. The screen is not showing anything. Q1:For this situation, there are 3 things to check: (1)Check for loose, broken or corroded connections in the cables between the inverter and battery bank. (2)Check the fuses/breakers in the combiner box. (3)Verify battery voltage is sufficient to power up the inverter A2:Everything is hooked up correctly. The sun is shining directly onto the solar panels but no charge is going to the batteries.
• Check to make sure all structural components, mechanical fasteners, and electrical connections are secure, clean, and corrosion-free.
