1. Introduction
The EASUN 10.2KW Hybrid Solar Inverter is a versatile power solution designed for both on-grid and off-grid solar applications. It features a pure sine wave output, dual MPPT solar charge controllers, and intelligent battery management to optimize energy usage and prolong battery life. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your inverter.
Key Features:
- Hybrid pure sine wave solar inverter (supports on-grid and off-grid operation)
- Capable of working without batteries
- Output power factor of 1.0
- High PV input voltage range (90 ~ 500VDC)
- WIFI and GPRS connectivity for iOS and Android monitoring
- Built-in anti-dusk set for harsh environments
- Integrated 180A MPPT solar charging controller (for 10.2KW model)
- Intelligent battery charging design for optimized battery life
- One-click restoration to factory settings
- Double output and double PV input
- Built-in lithium battery automatic activation
- User-friendly touch button interface
- Supports connection with lithium, rescue pot, and lead-acid batteries
- Single-phase operation
2. Setup and Installation
2.1 Unboxing
Carefully unbox your EASUN 10.2KW Hybrid Solar Inverter. Inspect the package and product for any damage upon receipt. If any issues are found, contact customer support immediately.
Video: Unboxing the EASUN 10.2KW Hybrid Solar Inverter, showing the careful removal of the unit from its packaging and a brief overview of its exterior features and connection ports.
2.2 Installation Reminders
- Strictly follow all installation and debugging instructions provided in this manual. Failure to do so may void the warranty.
- Do not remove the warranty barcode or attempt unauthorized disassembly. This will immediately cancel the warranty.
- Connection Order: Always connect the battery first, then the power supply (AC input), and finally the solar panel(s).
- Before powering on and testing, double-check all connections for correctness. Pay close attention to input and output terminals.
- Install a circuit breaker before both the input and output wiring.
- Use only battery packs of the same type and specification. Do not connect new and old batteries simultaneously.
2.3 Mounting the Unit
Consider the following points when selecting an installation location:
- Do not mount the inverter on flammable construction materials.
- Mount the unit on a solid surface.
- Install the inverter at eye level to ensure the LCD display is easily readable.
- For proper air circulation and heat dissipation, 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 vertically on a wall.
- Ensure sufficient space for removing wires and other objects/surfaces as shown in the diagram.

2.4 Battery Connection
The 10.2KW model supports a 48VDC system. Ensure your battery bank matches this voltage requirement.

2.5 PV Connection
When selecting proper PV modules, consider the following parameters:
- Open circuit voltage (Voc) of PV modules should not exceed the maximum PV array open circuit voltage of the inverter (500VDC).
- Open circuit voltage (Voc) of PV modules should be higher than the minimum battery voltage.

2.6 System Diagram
The inverter supports various operation modes, including with and without battery connected, and integrates solar, grid, and generator inputs to power household appliances.


3. Operation
3.1 Product Overview and Controls
The inverter features an LCD display, status indicators, and touch function buttons for easy control and monitoring.


3.2 LED Indicators and Function Keys
The inverter uses LED indicators to show its status and provides function keys for navigation and settings.

3.3 Working Modes
The RGB display indicates different working modes:
- RED: Battery mode
- BLUE: Utility mode
- PURPLE: Photovoltaic mode
The inverter supports various priority settings:
- SUB Solar First (Default): Solar energy is prioritized.
- USB Utility First: Utility power is prioritized.
- SBU Priority: Solar-Battery-Utility priority.

3.4 Monitoring with WIFI/GPRS
The inverter supports WIFI and GPRS for remote monitoring via iOS and Android applications. This allows users to track system performance and settings from their mobile devices.

4. Maintenance
To ensure optimal performance and longevity of your EASUN Hybrid Solar Inverter, regular maintenance is recommended:
- Periodically inspect all wiring connections to ensure they are secure and free from corrosion.
- Keep the inverter's ventilation openings clear of dust and debris to prevent overheating. The unit has a built-in anti-dusk set for harsh environments, but regular cleaning is still beneficial.
- Monitor the system's performance via the LCD display or mobile app for any unusual readings or fault indicators.
- Ensure batteries are maintained according to their manufacturer's guidelines, especially regarding charging and discharge cycles.
- If the inverter is exposed to harsh weather conditions, ensure its enclosure remains sealed and protected.
5. Troubleshooting
This section provides guidance on common issues. Refer to the LED Indicator table (Figure 3.2.1) for specific fault messages.
Common Issues:
- No Output / Main Output Not Working:
- Check all AC output connections and circuit breakers.
- Verify the inverter's operating mode (Utility, Battery, PV) and ensure it's receiving adequate input power (PV or Grid).
- Check for any fault indicators on the LCD or LED display.
- Ensure the battery is properly connected and charged, especially if operating in battery mode.
- Inverter Not Turning On:
- Verify battery connections and voltage.
- Check the AC input connection and ensure utility power is present if configured for grid-tied operation.
- Ensure the power on/off switch is in the 'ON' position.
- Low Power Output:
- Inspect PV panel connections and ensure they are clean and free from shading.
- Check PV input voltage and current against specifications.
- Verify battery health and charge level.
For persistent issues, contact EASUN POWER customer service.
6. Specifications
Below are the detailed technical specifications for the EASUN ISolar SML V 10.2KW Hybrid Solar Inverter.

Physical Dimensions and Weight:
- Size (D x W x H): 537 x 390 x 130 mm
- Net Weight: 14.5 kg

7. User Tips
- Grid Synchronization: For users interested in injecting power back into the grid, ensure your local regulations and utility provider allow for grid synchronization. The inverter is designed for both on-grid and off-grid operation, but specific setup for grid injection may require additional components or configuration.
- Output Troubleshooting: If the main output is not functioning, first check all physical connections and circuit breakers. Then, review the inverter's display for any error codes or status messages. Ensure the input sources (solar, grid, battery) are active and providing sufficient power.
- Performance: Users have reported fast delivery and good product performance, indicating reliable operation when properly installed.
8. Warranty and Support
EASUN POWER products are covered by a warranty to ensure customer satisfaction.

For specific warranty details, technical support, or service inquiries, please contact EASUN POWER customer service. Ensure you have your product model number and purchase details available.





