1. Introduction
This EASUNPOWER Hybrid Solar Inverter is a multi-function inverter/charger, combining the functions of an inverter, solar charger, and battery charger to provide uninterruptible power support in a portable size. Its comprehensive LCD display offers user-configurable and easily accessible button operations for settings such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications.
2. Features
- Pure sine wave output.
- 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 generator power.
- Auto restart while AC is recovering.
- Overload, over temperature, and short circuit protection.
- Smart battery charger design for optimized battery performance.
- Cold start function.
- WIFI (Optional) and GPRS available for iOS and Android.
- Can connect to lithium battery.
- Intelligent fan speed adjustment.
- Output power factor 1.0.
- Inverter can run without battery.
- Built-in Lithium battery automatic activation.
- Dual communication ports for Battery communication and Wifi communication.
- Built-in 120A MPPT Solar charge; max 6200W (for 3.6KW/4.2KW), max 6500W (for 6.2KW).
- High PV input voltage range (60~500VDC).
- Built-in anti-dust kit for harsh environments.
3. Product Overview
3.1. Front Panel and Display
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 | Flashing: Battery is charging. |
| FAULT | Red | Solid On: Fault occurs in the inverter. Flashing: Warning condition occurs in the inverter. |
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 |
3.2. Back Panel Connections
- Power on/off switch
- AC input
- Main output
- Second output
- PV input
- Battery communication/RS-485 port
- WIFI communication/RS-232 port
- Battery input
3.3. System Connection Diagram
4. Setup and Installation
Please ensure all connections are secure and correctly polarized before powering on the inverter. Refer to the detailed installation video below for visual guidance.
4.1. Wiring Steps
- Connect the Battery: Connect the positive (red) and negative (black) battery cables to the corresponding terminals on the inverter. Ensure a tight and secure connection.
- Utility Connection (AC Input/Output): Connect the Line (red), Neutral (blue), and Ground (green/yellow) wires from your utility grid to the designated AC input terminals on the inverter. Similarly, connect the output wires to your loads.
- Ground Connection: Securely connect the green/yellow ground wire to the inverter's ground terminal.
- Output Connections: Connect the white, blue, and red wires for the main and second outputs to your electrical loads.
- PV Connection: Connect the positive (red) and negative (black) cables from your solar panels to the PV input terminals on the inverter. Ensure that the open circuit voltage (Voc) of the PV modules does not exceed the maximum PV array open circuit voltage of the inverter and is higher than the minimum battery voltage.
4.2. Powering On
- Turn on the battery switch.
- Turn on the inverter's power switch.
- Connect the utility power.
- Connect your loads (e.g., fan) to the inverter's output.
4.3. PV Module Selection Guidelines
When selecting proper PV modules, please 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.
5. Operating Instructions
The inverter's LCD display provides real-time information on its status and performance. Use the function keys (ESC, UP, DOWN, ENTER) to navigate through the settings and monitor various parameters.
5.1. Monitoring Status
Observe the LED indicators and the LCD display for operational status. Refer to the 'LED Indicators' table in Section 3.1 for detailed messages.
5.2. Setting Configuration
Access and modify settings such as battery charging current, AC/solar charger priority, and acceptable input voltage using the function keys and the LCD menu. Consult the full user manual (PDF) for detailed menu navigation and parameter adjustments.
5.3. Pure Sine Wave Output
The inverter provides a pure sine wave output, which is identical to the voltage waveform of the utility grid. This ensures high-quality AC power with high efficiency, stable output, and broad compatibility, allowing it to drive various types of loads without interference, including sensitive electronics like TVs, refrigerators, computers, microwave ovens, and dishwashers.
6. Specifications
| Category | Parameter | ISolar-SMH-II-2.2KW | ISolar-SMH-II-3.2KW | ISolar-SMH-III-4.2KW | ISolar-SMH-III-6.2KW |
|---|---|---|---|---|---|
| Model | Rated Power | 2200VA/1800W | 3200VA/3000W | 4200VA/4200W | 6200VA/6200W |
| Work Without Battery | NO | NO | YES | YES | |
| Input | Voltage | 230Vac | |||
| Selectable Voltage Range | 170-280Vac (for personal computers); 90-280Vac (for home appliances) | ||||
| Frequency Range | 50Hz/60Hz (Autosensing) | ||||
| WIFI | YES | YES | YES | YES | |
| Output | AC Voltage Regulation (Batt.Mode) | 230VAC±5% | |||
| Surge Power | 4400VA | 6400VA | 8400VA | 12400VA | |
| Transfer Time | 10ms (for personal computers); 20ms (for home appliances) | ||||
| Waveform | Pure Sine Wave | ||||
| Battery & AC Charger | Battery Voltage | 12VDC | 24VDC | 24VDC | 48VDC |
| Floating Charge Voltage | 13.5VDC | 27VDC | 27VDC | 54VDC | |
| Over-charge Protection | 15.5VDC | 31VDC | 31VDC | 61VDC | |
| Maximum Charge Current | 60A | 60A | 80A | 80A | |
| Solar Charger | MAX.PV Array Power | 2000W | 3000W | 6200W | 6500W |
| MPPT Range @ Operating Voltage | 55-450VDC | 60-500VDC | |||
| Maximum PV Array Open Circuit Voltage | 450VDC | ||||
| Maximum Charging Current | 80A | 80A | 120A | 120A | |
| Maximum Efficiency | 98% | ||||
| Physical | Dimension D*W*H(mm) | 405x286x98mm | 423x290x100mm | 423x310x120mm | |
| Net Weight (kgs) | 4.5kg | 5.0kg | 9.5kg | 10.0kg | |
| Communication Interface | RS232/RS485 (Standard)/GPRS/WIFI | ||||
| Operating Environment | Humidity | 5% to 95% Relative Humidity (Non-condensing) | |||
| Operating Temperature | 5°C to 55°C | ||||
| Storage Temperature | -15°C to 60°C | ||||
7. Maintenance
To ensure optimal performance and longevity of your EASUNPOWER Hybrid Solar Inverter, regular maintenance is recommended:
- Cleaning: Keep the inverter's exterior clean and free from dust. Use a dry, soft cloth for cleaning. Ensure ventilation openings are clear and unobstructed. The inverter includes a built-in anti-dust kit for harsh environments.
- Connections: Periodically check all electrical connections (battery, utility, PV, and load) for tightness and signs of corrosion. Loose connections can lead to overheating or inefficient operation.
- Environment: Ensure the inverter is installed in a well-ventilated area, away from direct sunlight, moisture, and corrosive substances. Maintain operating temperatures within the specified range (5°C to 55°C).
- Battery Health: If using batteries, monitor their health and charge levels regularly. The smart battery charger design helps optimize battery performance.
- Firmware Updates: Check the manufacturer's website or contact support for any available firmware updates to ensure your inverter has the latest features and bug fixes.
8. Troubleshooting
If you encounter issues with your inverter, refer to the LED indicator messages in Section 3.1 for initial diagnosis. Common issues and general troubleshooting steps include:
- No Power Output: Check the power on/off switch, battery connections, and utility input. Ensure the inverter is not in fault mode (red FAULT LED).
- Battery Not Charging: Verify PV connections and ensure solar panels are receiving adequate sunlight. Check battery charging current settings via the LCD.
- Overload/Short Circuit: If the inverter shuts down due to overload or short circuit, disconnect some loads, clear any short circuits, and restart the inverter.
- Inverter Not Turning On: Ensure the battery is connected and charged, and the inverter switch is on. If the issue persists, contact technical support.
For more detailed troubleshooting, please consult the comprehensive user manual (PDF) available from the manufacturer.
9. User Tips
- Battery-Free Operation: Note that the ISolar-SMH-III-4.2KW and ISolar-SMH-III-6.2KW models are capable of operating without a battery, providing flexibility in system design.
- Output Voltage: The inverter provides a 230VAC output. If 120V output is required, an external step-down transformer would be necessary.
- On/Off Grid Functionality: This is a hybrid inverter, designed for both on-grid and off-grid applications. It fully supports connecting batteries, and its smart charging features are optimized for various battery types, including LiFePO4 and Lithium batteries.
- Remote Monitoring: Utilize the optional WiFi and GPRS connectivity for remote monitoring and control via iOS and Android applications, enhancing convenience and system management.
10. Certifications and Compliance
This product has been tested and found in conformity with the following standards:
- CE Certification: The inverter complies with European Union safety, health, and environmental protection requirements.
- EMC Directive 2014/30/EU:
- EN IEC 61000-6-3:2021
- EN 61000-3-11: 2000
- EN 61000-3-12: 2011
- EN IEC 61000-6-1:2019
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your authorized dealer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
