1. Introduction and Overview
This manual provides detailed instructions for the installation, operation, and maintenance of your EASUN POWER 11KW 48V Hybrid Solar Parallel Inverter. This high-power hybrid inverter supports charging and discharging of lithium batteries and can be operated remotely via a wireless network. It is designed for off-grid solar applications, offering a dual output of 230V and featuring a 120A MPPT charger with pure sine wave output.
2. Key Features
- Pure sine wave inverter for clean and stable power output.
- Capable of running without a battery if the PV input voltage is higher than 200V.
- Built-in dual MPPT solar controllers for optimized solar energy harvesting.
- Configurable input voltage range for various applications (home appliances and personal computers) via LCD settings.
- Configurable battery charging current to suit different battery types and applications via LCD settings.
- Configurable AC/Solar Charger priority via LCD settings.
- Compatible with both mains voltage and generator power.
- Automatic restart function upon AC recovery.
- Comprehensive protection against overload, over-temperature, and short circuits.
- Smart battery charger design for optimized battery performance and longevity.
- Cold start function for reliable operation in various conditions.
- Supports parallel operation of 1-6 units for increased power capacity.
3. Specifications
| Category | Parameter | Value |
|---|---|---|
| General | Model | SMF-II-11KP-48V |
| Rated Power | 11000VA/11000W | |
| Parallel Capability | YES, 1-6 PCS | |
| Lithium Battery Activation | YES | |
| BMS | YES | |
| Input | Nominal Voltage | 230VAC |
| Acceptable Voltage Range | 170-280VAC (For personal Computer); 90-280VAC (For Home Appliances) | |
| Frequency | 50/60 Hz (Auto sensing) | |
| Output | Nominal Voltage | 230VAC±5% |
| Surge Power | 22000VA | |
| Efficiency (Peak) | 94% | |
| Waveform | Pure Sine wave | |
| Transfer Time | 15ms (For personal Computer); 20ms (For Home Appliances) | |
| Power Consumption | No Load Power Consumption | < 70W |
| Battery | Battery Voltage | 48VDC |
| Floating Charge Voltage | 54VDC | |
| OverCharge Protection | 63VDC | |
| Solar Charger & AC Charger | Solar Charger TYPE | MPPT |
| Max.PV Array Power | 5500W*2 | |
| Max. PV Array Open Circuit Voltage | 500VDC | |
| MPPT Range @ Operating Voltage | 60VDC~500VDC | |
| Max. Solar Input Current | 18A*2 | |
| Maximum Solar Charge Current | 120A | |
| Maximum AC Charge Current | 120A | |
| Charge Current | Maximum Charge Current | 120A |
| Physical | Dimensions, D x W x H(mm) | 540*415*122 |
| Net Weight (Kgs) | 16 | |
| Communication Interface | USB/RS232/RS485/WiFi/Dry-contact | |
| Operating Environment | Operating Temperature | -10°C to 50°C |
| Storage temperature | -15°C~ 60°C | |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
4. Setup and Installation
4.1 Unboxing and Initial Inspection
Carefully unpack the inverter and inspect it for any damage. Ensure all components are present as per the packing list.
Video: Unboxing the EASUN POWER 11KW Hybrid Solar Inverter, showing its packaging and the unit itself. The video highlights the rated power of 11000W, battery voltage of 48V, and an MPPT tracking range of 120-450VDC.
4.2 System Connection Diagram
The inverter integrates various power sources and loads. Refer to the diagram below for a typical system setup.
4.3 Rear Panel Connections
Identify the various ports on the rear panel for proper wiring.
4.4 PV Connection Guidelines
When connecting PV modules, ensure the following parameters are considered:
- The Open Circuit Voltage (Voc) of PV modules must not exceed the maximum PV array open circuit voltage of the inverter.
- The Open Circuit Voltage (Voc) of PV modules should be higher than the minimum battery voltage.
5. Operating Instructions
5.1 Product Overview and Indicators
The inverter features an LCD display, LED indicators, and function buttons for monitoring and control.
5.2 LED Indicators
| LED Indicator | Color | Messages |
|---|---|---|
| AC / INV | Green | Solid On: Output is powered by utility in Line mode. Flashing: Output is powered by battery or PV in battery mode. |
| CHG | Green | Solid On: Battery is fully charged. Flashing: Battery is charging. |
| FAULT | Red | Solid On: Fault occurs in the inverter. Flashing: Warning condition occurs in the inverter. |
5.3 Function Keys
| Function Key | Description |
|---|---|
| ESC | To exit setting mode |
| UP | To go to previous selection |
| DOWN | To go to next selection |
| ENTER | To confirm the selection in setting mode or enter setting mode |
6. User Tips
- **PV Module Selection:** Always ensure your PV modules' open circuit voltage (Voc) does not exceed the inverter's maximum limit and is higher than the minimum battery voltage for optimal performance and safety.
- **Battery-less Operation:** Take advantage of the inverter's ability to run without batteries when the PV input voltage is consistently above 200V, which can be useful in certain grid-tied or direct-load scenarios.
- **Remote Monitoring:** Utilize the built-in WiFi feature for remote monitoring of your system's performance and status, allowing for convenient management from anywhere.
- **Custom Settings:** Explore the LCD settings to configure input voltage ranges, battery charging currents, and AC/Solar charger priorities to best suit your specific energy needs and connected appliances.
- **Parallel Operation:** If you require more power, consider expanding your system by connecting up to 6 units in parallel. Ensure proper configuration as per the manual for parallel operation.
7. Troubleshooting
If you encounter issues with your inverter, follow these general troubleshooting steps:
- **Check LED Indicators:** Observe the LED indicators (AC/INV, CHG, FAULT) for their status (Solid On, Flashing, Color) to identify the nature of the problem (e.g., fault, warning, charging status).
- **Verify Connections:** Ensure all AC input/output, PV input, and battery connections are secure and correctly wired according to the installation diagrams. Loose connections can cause intermittent operation or faults.
- **Review LCD Display:** Check the LCD display for any error codes or messages that can provide specific diagnostic information.
- **Power Cycle:** For minor glitches, try turning off the inverter using the power on/off switch, waiting a few minutes, and then turning it back on.
- **Overload/Over-temperature:** If the FAULT LED is solid red, check for overloaded appliances or ensure adequate ventilation around the inverter to prevent overheating. The inverter has built-in protection for these conditions.
- **Consult Specifications:** Compare your system's parameters (e.g., PV voltage, battery voltage) against the specifications table to ensure they are within the acceptable ranges.
- **Contact Support:** If the problem persists after following these steps, contact customer support for further assistance.
8. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your inverter:
- **Keep Clean:** Periodically clean the exterior of the inverter with a dry cloth. Ensure ventilation openings are free from dust and debris to maintain proper airflow and prevent overheating.
- **Check Connections:** Annually, inspect all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion. Tighten any loose connections.
- **Environmental Conditions:** Ensure the inverter is operating within the specified temperature and humidity ranges. Avoid exposing it to direct sunlight, rain, or excessive moisture.
- **Battery Health:** If using batteries, regularly monitor their health and ensure they are properly maintained according to the battery manufacturer's guidelines.
- **Software Updates:** Check with the manufacturer for any available firmware or software updates for the inverter, especially if using WiFi monitoring features.
9. Warranty and Support
For warranty information, technical support, or service requests, please refer to the documentation provided with your purchase or contact your seller directly. Ensure you have your product model number and purchase details ready when contacting support.
