1. Introduction
The EASUN Hybrid Solar Inverter is a versatile power solution designed for both residential and commercial applications. It integrates a pure sine wave inverter, an MPPT solar charge controller, and a battery charger into one compact unit. This series supports various power outputs (2.2KW, 3.2KW, 4.2KW, 6.2KW) and battery voltages (12V, 24V, 48V), offering flexibility for different solar energy systems. Key features include configurable settings, comprehensive protection, and integrated WIFI for remote monitoring.
2. Safety Instructions
Please read all instructions and warnings carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or severe injury.
- Do not mount the inverter on flammable construction materials.
- Mount the inverter on a solid, non-combustible surface only, such as concrete.
- Install this inverter at eye level to ensure the LCD display is easily readable.
- Ensure proper air circulation to dissipate heat. Allow a clearance of approximately 20 cm to the sides and 50 cm above and below the unit.
- The ambient temperature should be between 0°C and 55°C for optimal operation.
- The recommended installation position is to adhere the unit to the wall vertically.
- Keep other objects and surfaces clear as shown in diagrams to guarantee sufficient heat dissipation and enough space for wiring.
- Ensure all wiring is performed by qualified personnel and complies with local electrical codes.
3. Key Features
- Pure sine wave output.
- Output power factor 1.0.
- Configurable input voltage range for home appliances and personal computers via LCD setting.
- Configurable battery charging current based on applications via LCD setting.
- Configurable AC/Solar Charger priority via LCD setting.
- Compatible with mains voltage or power generator.
- Auto restart while AC is recovering.
- Overload, over temperature, and short circuit protection.
- Smart battery charger design for optimal battery performance.
- Cold start function.
- Built-in Lithium battery automatic activation.
- Dual communication ports for Battery communication and Wifi communication (RS232/RS485/GPRS/WIFI).
- Built-in anti-dust kit for harsh environments.
- High PV input voltage range (55-450VDC or 60-500VDC depending on model).
- Inverter can run without battery (for 4.2KW and 6.2KW models).
- Dual output (for 4.2KW and 6.2KW models).
4. Setup and Installation
4.1 Unboxing
Watch this video for an unboxing and initial overview of the inverter and its components.
Video: Unboxing and initial overview of the Hybrid Solar Inverter.
4.2 System Connection Diagram
The inverter can be integrated into various power systems, including solar power, utility grid, and generator inputs, with or without battery storage. Below are diagrams illustrating typical system configurations.
4.3 Rear Panel Connections
Familiarize yourself with the connection ports on the rear panel of your inverter. Ensure all connections are secure and correctly polarized.
4.4 PV Connection
When selecting proper PV modules, please be sure to consider the following parameters:
- Open circuit Voltage (Voc) of PV modules must not exceed the maximum PV array open circuit voltage of the inverter.
- Open circuit Voltage (Voc) of PV modules should be higher than the minimum battery voltage.
4.5 Battery Connection
The 4.2KW model supports a 24VDC system, and the 6.2KW model supports a 48VDC system. Ensure correct battery configuration and wiring.
5. Operating Instructions
5.1 LCD Display and Function Keys
The inverter features an LCD display and function keys for monitoring and configuring settings. Refer to the table below for LED indicator messages and function key descriptions.
5.2 Configurable Settings
The inverter allows you to customize various operational parameters via the LCD settings:
- Input Voltage Range: Adjust for home appliances or personal computers.
- Battery Charging Current: Set based on your battery type and application needs.
- AC/Solar Charger Priority: Configure whether AC or solar power takes precedence for charging.
5.3 Remote Monitoring (WIFI/GPRS)
Monitor and control your inverter using the SmartESS App, available for iOS and Android devices. The inverter supports WIFI and GPRS communication for remote access.
5.4 Pure Sine Wave Output
The inverter provides a pure sine wave output, ensuring high-quality AC power that is stable, efficient, and compatible with a wide range of sensitive electronic devices and appliances.
6. Maintenance
- Regular Cleaning: Periodically clean the inverter's exterior to prevent dust buildup, especially around ventilation openings. The built-in anti-dust kit helps, but regular checks are recommended.
- Connection Checks: Ensure all electrical connections (PV, battery, AC input/output) are tight and free from corrosion.
- Battery Health: The smart battery charger design optimizes battery life, but regular monitoring of battery voltage and performance is advisable.
- Environmental Conditions: Ensure the operating environment remains within specified temperature and humidity ranges to prevent damage.
7. Troubleshooting
This section provides guidance on common issues. For complex problems, contact technical support.
7.1 Common Protections
- Overload Protection: If the inverter is overloaded, it will automatically shut down. Reduce the load and restart the inverter.
- Over Temperature Protection: If the internal temperature exceeds safe limits, the inverter will shut down. Ensure adequate ventilation and clear any obstructions around the cooling fans.
- Short Circuit Protection: The inverter is protected against short circuits on the output. Identify and clear the short circuit before restarting.
7.2 Operational Issues
- No Output Power: Check AC input, battery connections, and PV input. Verify the power on/off switch is in the 'ON' position.
- Inverter Not Charging: Check solar panel connections, AC input, and ensure charging current settings are appropriate.
- Fan Operation (6.2KW model): The cooling fan in the 6.2KW model typically activates when the inverter reaches a certain internal temperature or load threshold to maintain optimal operating conditions. If the fan is not operating when expected, check for obstructions or contact support.
8. Specifications
Detailed technical specifications for the EASUN Hybrid Solar Inverter series.
8.1 Model-Specific Features
9. User Tips
- Verify DC to AC Conversion: Confirm that the inverter is correctly converting DC battery power to 220V AC for your appliances.
- Monitor Fan Noise: Pay attention to the cooling fan's operation, especially in the 6.2KW model. If it's unusually loud or not engaging when the unit is under load, investigate for potential issues.
- Check Warranty Information: Always retain your purchase records and check the specific warranty terms provided by the seller for future reference.
10. Warranty and Support
For warranty claims or technical support, please refer to the documentation provided with your purchase or contact your vendor directly. Ensure you have your product model and serial number available when seeking assistance.
The product is certified with CE, indicating compliance with European safety, health, and environmental protection requirements.
