1. Introduction
This manual provides essential information for the safe and efficient operation of your Anern AN-SCI-ECO Series Hybrid Solar Inverter. This series includes models such as the AN-SCI-ECO-4.2KW and AN-SCI-ECO-6.2KW, designed for both 24V and 48V systems respectively. These inverters feature pure sine wave output, an integrated MPPT solar charge controller, and dual AC output capabilities, making them ideal for various solar power applications.

2. Safety Information
Please read and understand all safety instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure all wiring is performed by qualified personnel.
- Do not attempt to repair the inverter yourself. Refer to qualified service personnel.
- Keep the inverter away from flammable materials and moisture.
- Ensure proper ventilation around the inverter to prevent overheating.
- Always disconnect all power sources (PV, battery, utility) before performing any maintenance or wiring.

Important Use Notices:
- The starting power of inductive load electrical appliances should be at least three times the rated power of the electrical appliances. If the starting power exceeds the inverter's capacity, the inverter may be damaged. Please select a suitable model before purchasing.
- Connect the circuit correctly according to the instructions, and install switches for each circuit.
- Starting Sequence: First, turn on the battery switch, then start the inverter, and finally turn on the PV, mains, and load switches.
- Shutdown Sequence: Turn off the switches for the load, PV, and mains, then turn off the inverter, and finally turn off the battery.
3. Product Overview
The Anern AN-SCI-ECO Series Hybrid Solar Inverter is a robust solution for managing solar power. It integrates an inverter, MPPT solar charger, and battery charger functions into one unit. Key features include:
- Pure sine wave output for sensitive electronics.
- Ability to run without a battery.
- One-key restoration to factory settings.
- Lithium battery automatic activation by PV.
- Built-in 120A MPPT solar controller.
- Max 6200W (for 4.2KW model) & 6500W (for 6.2KW model) solar charge.
- High PV input voltage range (60-450VDC).
- Built-in anti-dust kit for harsh environments.
- Smart battery charge design to optimize battery life.
- Dual AC output.
- WIFI monitoring available for iOS and Android devices.

Component Identification:

- LCD Display
- Status Indicator
- Charge Indicator
- Fault Indicator
- Function Buttons
- Power ON/OFF Switch
- AC Input
- Main Output
- Second Output
- Battery Input
- PV Input
- Anti-dust kit
- RS-232 / WiFi Communication Port
Dimensions:

4. Specifications
Below are the detailed technical specifications for the AN-SCI-ECO Series Hybrid Solar Inverters.

| Feature | AN-SCI-ECO-4.2KW | AN-SCI-ECO-6.2KW |
|---|---|---|
| Inverter Mode Specifications | ||
| Rated Output Power | 4.2KW | 6.2KW |
| Output Voltage Waveform | Pure Sine Wave | |
| Output Voltage Regulation | 230Vac±5% | |
| Output Frequency | 50Hz | |
| Peak Efficiency | 93% | |
| Overload Protection | 3s@≥150% load; 5s@101%~150% load | |
| Surge Capacity | 2* rated power for 5 seconds | |
| Nominal DC Input Voltage | 24Vdc | 48Vdc |
| Cold Start Voltage | 23.0Vdc | 46.0Vdc |
| No Load Power Consumption | 35W | 50W |
| Two Load Output Power | ||
| Full Load | 4200W | 6200W |
| Maximum Main Load | 4200W | 6200W |
| Maximum Second Load (battery model) | 1400W | 2066W |
| Main Load Cut Off Voltage | 22VDC | 44VDC |
| Main Load Return Voltage | 26VDC | 52VDC |
| Charge Mode Specifications | ||
| Utility Charging Mode | ||
| Charging Algorithm | 3-Step | |
| AC Charging Current (Max) | 100Amp | |
| Floating Charging Voltage | 27Vdc | 54Vdc |
| MPPT Solar Charging Mode | ||
| Max. PV Array Power | 6200W | 6500W |
| Nominal PV Voltage | 240Vdc | 360Vdc |
| PV Array MPPT Voltage Range | 60Vdc~500Vdc | |
| Max. PV Array Open Circuit Voltage | 500Vdc | |
| Max Charging Current (AC charger plus solar charger) | 120Amp | |
| Grid-Tie Operation | ||
| Nominal Output Voltage | 220/230/240 VAC | |
| Feed-in Grid Voltage Range | 195~253VAC | |
| Feed-in Grid Frequency Range | 50Hz | |
| Nominal Output Current | 18.2A | 26.9A |
| Power Factor Range | >0.99 | |
| Maximum Conversion Efficiency (DC/AC) | 97% | |
| General Specifications | ||
| Safety Certification | CE | |
| Operating Temperature Range | –10°C - 50°C | |
| Storage temperature | –15°C - 60°C | |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) | |
| Dimension, D x W x H (mm) | 110*334*423 | |
| Net Weight (kgs) | 9.5 | 10 |
5. Installation and Setup
Proper installation is crucial for the safe and efficient operation of your hybrid solar inverter. Please follow the wiring diagrams and instructions carefully.
System Diagram:

This diagram illustrates how the inverter integrates with solar panels, an external battery bank, a generator or utility grid, and household appliances. An optional WIFI/GPRS cube allows for remote monitoring via the PVguarder App or Web interface.
Detailed Wiring Diagram:

The detailed wiring diagram shows connections for the solar panel array, DC (PV) disconnect, distribution box, AC breaker panel, AC disconnect, kWh meter, utility connection, generator, inverter, battery input, and both AC and DC loads. Ensure all connections are secure and correctly polarized.
Wiring Procedure (Video Guide):
Watch this video for a step-by-step guide on how to connect the wires to your inverter.
- Open the Cover Plate: Use a screwdriver to open the terminal cover plate on the inverter.
- Remove Screws: Loosen the screws for the wiring terminals.
- Connect the Battery: Connect the positive (+) and negative (-) battery cables to the designated terminals. Ensure a secure connection.
- Connect the PV Panels: Connect the positive (+) and negative (-) PV cables from your solar array to the PV input terminals.
- Connect the Ground Wire: Attach the ground wire to the designated ground terminal.
- Connect AC Input and Output: Connect the AC input (utility/generator) and AC output (to loads) wires to their respective terminals.
- Close the Cover Plate: Once all connections are secure, close the terminal cover plate and fasten the screws.
- Wiring Completed: Verify all connections are correct and secure before proceeding to operation.
6. Operating Instructions
Follow these steps to safely start and shut down your inverter.
Starting the Inverter:
Refer to the video guide (Video 1) for visual instructions.
- Step 1: Turn on the Battery: Ensure your external battery bank is turned on.
- Step 2: Turn on the Inverter: Locate the power ON/OFF switch on the inverter (refer to Figure 4, item 6) and turn it on. The inverter display will light up.
- Step 3: Turn on PV and AC Inputs: After the inverter is working, turn on the PV input and AC input (mains/generator) switches. This sequence is crucial to prevent damage.
- Step 4: Turn on Loads: Finally, turn on the switches for your connected AC and DC loads.
Attention: AC and PV inputs can only be turned on after the inverter is working. Otherwise, the inverter may be damaged easily.
The LCD display allows you to view various data such as voltage, current, and power, or to set up inverter parameters using the function buttons (Figure 4, item 5).
Turning Off the Inverter:
Refer to the video guide (Video 1) for visual instructions.
- Step 1: Turn off Loads, PV Input, and AC Input: First, turn off the switches for all connected loads, then the PV input, and finally the AC input (mains/generator).
- Step 2: Turn off the Inverter: Turn off the power ON/OFF switch on the inverter.
- Step 3: Turn off the Battery: Finally, turn off the external battery bank.
7. 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 inverter includes a built-in anti-dust kit for harsh environments (Figure 4, item 12).
- Connections: Regularly check all electrical connections (battery, PV, AC input/output, ground) for tightness and signs of corrosion.
- Environment: Ensure the inverter is operating within its specified temperature and humidity ranges (see Specifications).
- Battery Health: Monitor battery health and charge levels. The smart battery charge design helps optimize battery life.
8. Troubleshooting
This section addresses common issues you might encounter with your inverter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | Battery not connected or low voltage; Inverter switch off. | Check battery connections and charge level. Ensure inverter power switch is ON. |
| No AC output | Overload; AC output switch off; Inverter fault. | Reduce load. Check AC output switch. Refer to fault indicator (Figure 4, item 4) and manual for specific fault codes. |
| PV input displayed as 0 (zero) | Solar panel not connected; No sunlight; PV input switch off. | Ensure solar panels are connected and receiving adequate sunlight. Check PV input switch. |
| Inverter making unusual noises | Overload; Fan obstruction; Internal fault. | Reduce load. Check for obstructions in cooling fans. If noise persists, contact support. |
9. User Tips
- Output Voltage: The inverter's nominal output voltage is 220-240V AC. It does not support 120V output. Ensure your appliances are compatible with this voltage range.
- WIFI Monitoring: Utilize the optional WIFI module to monitor your system's performance and status remotely via the PVguarder App or Web interface. This can help in proactive maintenance and performance tracking.
- Inductive Loads: When connecting inductive loads (e.g., motors, refrigerators), remember that their starting power can be significantly higher than their running power. Always ensure the inverter's capacity is at least three times the rated power of such appliances to avoid damage.

10. Applications
The Anern AN-SCI-ECO Series Hybrid Solar Inverter is versatile and suitable for a wide range of applications:
- Home Use: Providing reliable power for residential solar systems.
- Solar Power Stations: Ideal for small to medium-scale solar installations.
- Recreational Vehicles (RVs): Powering appliances and systems in mobile environments.
- Yachts: Ensuring stable power supply for marine applications.

11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
The product is certified with CE, ensuring compliance with European safety standards.





