1. Introduction
The Anern AN-FGI-DU4200 is a state-of-the-art hybrid solar inverter designed to provide reliable and efficient power for various applications. This inverter supports dual voltage operation (12VDC or 24VDC) and delivers a pure sine wave output, ensuring compatibility with sensitive electronics. It integrates a built-in MPPT solar charger and offers comprehensive protection features. This manual provides essential information for the safe and effective installation, operation, and maintenance of your inverter.
Figure 1: Anern Hybrid Solar Inverter FGI-DU4200 highlighting 4200W power, 12V/24V operation, 100A max charging current, 500VDC max DC voltage, and 2-year warranty.
Key Features:
- Work at 2 different voltages: 12VDC or 24VDC, meeting diverse load needs.
- Rated power is 2300W when operating at 12VDC, and 4200W when operating at 24VDC.
- Pure sine wave output inverter for clean and stable power.
- Selectable input voltage range of utility grid based on load requirements (household appliances/personal computers).
- Adjustable charging current via LCD display according to battery specifications.
- Ability to power loads simultaneously from solar energy and utility grid.
- AC input compatible with both mains power and generators.
- Automatic restart function upon restoration of mains power.
- Built-in overload, over-temperature, and short circuit protection.
- Intelligent battery charging design for optimized battery utilization.
- RS485 port for communication with Battery Management Systems (BMS).
- Cold start function.
- Built-in MPPT operating voltage range 55V~500V, open circuit voltage 500Voc.
- Optional Wi-Fi remote monitoring and Bluetooth near-end sampling.
- Built-in anti-dust kit for enhanced durability in harsh environments.
- Optional RGB lights.
2. Safety Information
Please read and understand all safety instructions before installing or operating the inverter. Failure to follow these instructions may result in electrical shock, fire, serious injury, or death.
- Installation must be performed by qualified personnel.
- Ensure all wiring is correctly sized and properly insulated.
- Do not disassemble the inverter. There are no user-serviceable parts inside.
- Keep the inverter away from flammable materials, moisture, and direct sunlight.
- Ensure adequate ventilation around the inverter to prevent overheating.
- Always disconnect all power sources (solar, battery, AC input) before performing any maintenance or wiring.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
3. Product Overview and Components
The Anern AN-FGI-DU4200 Hybrid Solar Inverter is designed for comprehensive power management. Key components include:
- Inverter Unit: The main device housing the power electronics and control system.
- LCD Display: For monitoring system status and configuring settings.
- Input/Output Terminals: Connections for solar panels, batteries, AC grid/generator, and AC loads.
- Communication Ports: RS485 for BMS, and optional Wi-Fi/Bluetooth module.
- Mounting Hardware: (Typically included) for securing the inverter to a wall.
Figure 2: Product dimensions (530mm H x 390mm W x 130mm D) and bottom panel connections including AC In/Out, Input Breaker, Battery terminals, and communication ports.
4. Installation and Setup
4.1 Mounting the Inverter
- Choose a dry, well-ventilated area, away from direct sunlight and heat sources.
- Ensure the mounting surface is strong enough to support the inverter's weight (approx. 10kg).
- Allow sufficient clearance around the inverter for proper airflow.
- Mount the inverter vertically using appropriate fasteners.
4.2 Wiring Connections
All wiring should be done by a qualified electrician following local electrical codes and regulations. Refer to the wiring diagrams below for correct connections.
Figure 3: Detailed Hybrid Power System wiring diagram showing connections for Solar Panel Array, Combiner Box, DC(PV) Disconnect, AC Breaker Panel, AC Disconnect, Inverter, kWh Meter, DC Loads, Grid, Property Use, Generator, External Battery Packs, and Home Appliances.
4.2.1 Battery Connection
The inverter supports both 12VDC and 24VDC battery systems. Ensure your battery bank matches the selected voltage mode of the inverter. For 24V operation, two 12V batteries can be connected in series. For 12V operation, batteries are connected in parallel.
Figure 4: Diagram illustrating battery connections for 12V (parallel) and 24V (series) operation, and compatible battery types including Flooded, Gel, AGM, Lithium, and SLD/Sealed.
Compatible battery types include Flooded, Gel, AGM, Lithium, and SLD/Sealed batteries. Connect the battery cables to the inverter's battery terminals, ensuring correct polarity (positive to positive, negative to negative).
4.2.2 Solar Panel Connection
Connect the solar panel array to the designated PV input terminals on the inverter. Ensure the total open circuit voltage (Voc) of your solar array does not exceed 500VDC and the MPPT operating voltage range is between 55V and 500VDC.
4.2.3 AC Input Connection (Grid/Generator)
Connect the AC input from your utility grid or generator to the AC input terminals. The inverter is compatible with 220V-240V AC input at 50/60Hz. An input breaker should be installed for safety.
4.2.4 AC Output Connection (Loads)
Connect your household appliances and other AC loads to the AC output terminals of the inverter. The inverter provides a 230VAC pure sine wave output.
Figure 5: System diagram illustrating the connection of solar panels, a generator, external battery packs, and various home appliances (TV, fan, computer, light, refrigerator) to the inverter.
4.3 Wi-Fi Monitoring Setup (Optional)
If your inverter includes the optional Wi-Fi module, you can monitor and control its operation remotely via a mobile phone or computer. Follow the instructions provided with the Wi-Fi module for setup and app installation.
Figure 6: Illustration of Wi-Fi Monitoring, showing how the inverter's operation can be controlled and monitored using a mobile phone or computer via a Wi-Fi module.
5. Operating Instructions
5.1 Initial Power-Up
- After all connections are secure, switch on the battery breaker first.
- Then, switch on the solar input breaker (if applicable).
- Finally, switch on the AC input breaker (if connected to grid/generator).
- The inverter will perform a self-test and the LCD display will illuminate.
5.2 LCD Display and Settings
The LCD display provides real-time system status and allows for configuration of various parameters. Navigate through the menus using the buttons adjacent to the display.
- Monitoring: View input/output voltage, current, frequency, battery status, and load percentage.
- Charging Current: Adjust the battery charging current based on your battery type and capacity.
- Input Voltage Range: Select the utility grid input voltage range (e.g., for personal computers or home appliances).
- Operating Mode: Configure the inverter's priority for power sources (e.g., Solar first, Utility first, Battery first).
5.3 Dual Voltage Flexibility
The inverter automatically detects and switches between 12VDC and 24VDC modes. When operating at 12VDC, the rated power is 2300W. When operating at 24VDC, the rated power is 4200W. This allows the inverter to adapt to different load requirements.
Figure 7: Explanation of Dual Voltage Flexibility, detailing how the inverter supports free switching between 12VDC/24VDC modes to provide 2300W and 4200W respectively, compatible with grid and generator input, and customizable charging via LCD.
5.4 Cold Start Function
The inverter features a cold start function, allowing it to be powered on directly from the battery even without an AC input or solar input, useful in off-grid scenarios.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter.
- Cleaning: Periodically clean the exterior of the inverter with a dry cloth. Ensure ventilation openings are free from dust and debris. The built-in anti-dust kit helps in harsh environments, but regular checks are still recommended.
- Connections: Annually check all electrical connections for tightness and signs of corrosion.
- Battery Health: Monitor battery voltage and health regularly, especially for lead-acid batteries. Follow battery manufacturer's maintenance guidelines.
- Environment: Ensure the operating environment remains within specified temperature and humidity ranges.
Warning: Do not attempt to open or service the inverter. Refer all servicing to qualified personnel.
7. Troubleshooting
This section covers common issues and their potential solutions. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No battery connection or low battery voltage. | Check battery connections and ensure battery voltage is above the minimum operating level. |
| No AC output | Overload, short circuit, or over-temperature. | Reduce load, check for short circuits, allow inverter to cool down. Inverter has built-in protection and will restart automatically once conditions are safe. |
| Solar charging not working | Solar panels not connected, insufficient sunlight, or PV voltage out of range. | Check solar panel connections, ensure adequate sunlight, verify PV voltage is within 55-500VDC MPPT range. |
| AC input not detected | AC input breaker off, grid power failure, or incorrect input voltage range setting. | Check AC input breaker, confirm grid power, adjust input voltage range setting via LCD. |
8. Specifications
Below are the detailed technical specifications for the Anern AN-FGI-DU4200 Hybrid Solar Inverter:
Figure 8: Product Data Sheet table providing detailed specifications for 12V and 24V operation, including power, voltage, frequency, charge currents, physical dimensions, and operating environment.
| Parameter | 12V System | 24V System |
|---|---|---|
| Rated output power | 2300VA/2300W | 4200VA/4200W |
| INPUT | ||
| Voltage | 230VAC | |
| Selectable Voltage Range | 170-280VAC (For Personal Computers) 90-280VAC (For Home Appliances) | |
| Frequency Range | 50 Hz/60Hz (Auto Sensing) | |
| OUTPUT | ||
| AC Voltage Regulation (Batt.Mode) | 230VAC±5% | |
| Surge Power | 4600W | 8400W |
| Efficiency (peak) Battery to INV | 94% | |
| Transfer Time | 10ms (For Personal Computers); 20ms (For Home Appliances) | |
| BATTERY & AC CHARGE | ||
| Battery Voltage | 12V | 24V |
| Floating Charge Voltage | 13.5V | 27V |
| Overcharge Protection | 16VDC | 32VDC |
| Maximum Charge Current | 100A | |
| SOLAR CHARGE | ||
| Maximum PV Array Power | 4000W | |
| MPPT Range @ Operating Voltage | 55-500VDC | |
| Maximum PV Array Open Circuit Voltage | 500VDC | |
| Maximum Charge Current | 100A | |
| PHYSICAL | ||
| Dimension, H*W*D(mm) | 405*305*108 | |
| Net Weight (kgs) | 6.7 | |
| Communication interface | RS485/RS232, BMS/WiFi, Bluetooth | |
| OPERATING ENVIRONMENT | ||
| Humidity | 5% to 95% Relative Humidity (Non-condensing) | |
| Operating Temperature | -20℃ ~ 55℃ | |
| Storage Temperature | -20℃ ~ 60℃ | |
9. User Tips
- Wi-Fi Monitoring: If you have the Wi-Fi option, utilize the mobile app for convenient remote monitoring of your system's performance and status. This allows you to check energy production and consumption from anywhere.
- Battery Compatibility: The inverter is highly versatile with battery types. Ensure you select the correct battery type setting on the LCD display to optimize charging and prolong battery life.
- Load Management: Be mindful of the inverter's rated power for your chosen voltage (2300W for 12V, 4200W for 24V) to avoid overloading, which can trigger protection mechanisms.
10. Warranty and Support
10.1 Warranty Information
The Anern AN-FGI-DU4200 Hybrid Solar Inverter comes with a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service conditions. It does not cover damage resulting from improper installation, misuse, unauthorized modifications, or natural disasters.
10.2 Technical Support
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Anern customer support. Have your product model number (AN-FGI-DU4200) and purchase details ready when contacting support.
