1. Introduction
This manual provides essential information for the safe and efficient operation of your EDECOA 4.2KW Hybrid Solar Inverter, Model EG-422B. This advanced inverter is designed to integrate solar power, utility power, and battery power to provide continuous power supply. It features a pure sine wave output, a high-efficiency MPPT solar charger, and compatibility with various battery types, including LiFePo4. Please read this manual thoroughly before installation and operation.
Key Features:
- Pure sine wave solar inverter (on/off Grid)
- Output power factor 1.0
- Inverter can run without battery
- One-key restoration to factory settings
- Built-in Lithium battery automatic activation
- Built-in 120A MPPT Solar charge: max 6200W
- High PV input voltage range (60~500VDC)
- Built-in anti-dust kit for harsh environment
- Smart battery charge design to optimize battery life
- Dual output
- Dual communication ports for Battery communication and Wifi communication
2. Safety Instructions
Please observe the following safety precautions to prevent injury and damage to the inverter or connected equipment:
- Installation must be performed by qualified personnel.
- Ensure all wiring is correctly polarized and securely connected.
- Do not attempt to open or repair the inverter yourself. Refer to qualified service personnel.
- Keep the inverter away from flammable materials, moisture, and direct sunlight.
- Ensure adequate ventilation around the inverter to prevent overheating.
- Always disconnect all power sources (PV, battery, AC input) before performing any maintenance or wiring.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
3. Component Identification
Familiarize yourself with the inverter's external components and connection ports:
Front Panel:
- RGB LED Indicators: Provide status feedback.
- LCD: Displays operational data and settings.
- Touchable Buttons: For navigation and configuration.
- Removable Panel: For access to certain components or connections.
Rear Panel:
- AC In Port: Connects to utility grid or generator.
- AC Main Out Port: Primary AC output for loads.
- AC Second Out Port: Secondary AC output for loads.
- PV In+/PV In-: Connects to solar panel array.
- Batt. In(+)/Batt. In(-): Connects to battery bank.
- Ground Terminal: For safety grounding.
- RS232/WIFI Comm Port: For communication with monitoring software or WiFi module.
- RS485+BMS Comm Port: For communication with Battery Management Systems.
- ON/OFF Switch: Main power switch for the inverter.
4. Setup & Installation
4.1 Mounting
Mount the inverter vertically on a sturdy wall in a well-ventilated area, away from direct sunlight, heat sources, and moisture. Ensure sufficient clearance around the unit for proper airflow.
4.2 Wiring Connections
All wiring should comply with local electrical codes and regulations. Use appropriate gauge wires for all connections.
- Battery Connection: Connect the battery bank to the Batt. In(+) and Batt. In(-) terminals. Ensure correct polarity. The inverter supports 24V battery systems, including AGM, GEL, Li-on, and FLD types.
- PV Array Connection: Connect the solar panel array to the PV In(+) and PV In(-) terminals. Ensure the PV input voltage is within the specified range (60-500VDC).
- AC Input Connection: Connect the utility grid or a generator to the AC In Port.
- AC Output Connection: Connect your AC loads to the AC Main Out Port and, if applicable, the AC Second Out Port.
- Grounding: Connect the Ground Terminal to a reliable earth ground.
The inverter is capable of operating without a battery, directly powering loads from solar or utility power, depending on configuration.
5. Operating Instructions
5.1 Powering On/Off
- To Power On: After all connections are secure, switch the ON/OFF switch to the "ON" position. The LCD will light up, and the inverter will begin its startup sequence.
- To Power Off: Disconnect all AC loads, then switch the ON/OFF switch to the "OFF" position. Disconnect PV and battery power sources if performing maintenance.
5.2 LCD Display and Settings
The LCD provides real-time operational data and allows for configuration of various settings using the touchable buttons. Refer to the detailed menu structure in the full manual for specific parameter adjustments.
5.3 Operating Modes
The EDECOA EG-422B is an "All In One" hybrid inverter, combining an AC charger, MPPT solar charger, and pure sine wave inverter:
It supports various operating modes, including Solar-Utility-Battery priority, and can be configured for on-grid or off-grid applications.
5.4 Battery Charging
The inverter features a smart battery charge design to optimize battery life, including a 6-stage AC charging mode and a high-efficiency MPPT solar charging mode.
6. Maintenance
6.1 Cleaning
Regularly clean the inverter's exterior with a dry cloth. The built-in anti-dust kit helps protect internal components in harsh environments, but periodic inspection for dust buildup in vents is recommended.
6.2 System Checks
- Periodically check all wiring connections for tightness and signs of corrosion.
- Monitor the LCD display for any error codes or unusual readings.
- Ensure the ventilation openings are clear and unobstructed.
7. Troubleshooting
This section addresses common issues you might encounter. For more complex problems, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter does not maintain service settings. | Settings not saved correctly; firmware issue; power interruption during save. | Ensure you follow the correct procedure to save settings after making changes. If the issue persists, perform a one-key restoration to factory settings and reconfigure, or contact support for firmware updates. |
| Generator not charging batteries on cloudy days. | Incorrect AC charging priority setting; generator output not compatible; inverter not detecting AC input. | Check the inverter's AC charging priority settings (e.g., Utility priority). Verify the generator's output voltage and frequency match the inverter's AC input requirements. Ensure the AC input cable is securely connected. |
| No power output. | Inverter off; battery low; PV input too low; overload; fault. | Check ON/OFF switch. Verify battery voltage. Check PV input voltage. Reduce load. Check for error codes on LCD. |
8. Specifications
The EDECOA EG-422B inverter is built with an ultra-durable design, featuring an intelligent safety core with 6X protections and electronic components with a 60,000-hour life expectancy.
It is capable of powering a wide range of household appliances:
The inverter also features On-Device AI Processing for enhanced performance:
8.1 General Product Properties
- Output Power: 4200W
- Size: 520*430*220mm
- Weight: 8.1 Kg
- Output Frequency: 50Hz 60Hz
- Is Smart Device: Yes
- Origin: Mainland China
- Certification: CE, RoHS, WEEE
- Waveform: Pure sine wave
- Rated power: 4200W
- DC input: 24V
- AC input: 220V 230V
- AC output: 220V 230V
- Efficiency: 93%
- UPS transfer time: 10ms-20ms
- AC charging current: 100A
- PV charging current: 120A
- PV Array MPPT Voltage Range: 60-500VDC
8.2 Detailed Specifications Tables
9. User Tips
- Saving Settings: Always ensure you correctly save any changes made to the inverter's settings via the LCD interface. Refer to the specific menu navigation for saving parameters to prevent loss of configuration.
- Generator Charging: When using a generator for battery charging, especially during cloudy periods, verify that the inverter's AC charging priority is correctly set (e.g., to Utility priority) and that the generator's output voltage and frequency are within the inverter's acceptable AC input range.
- Monitoring: Utilize the communication ports (RS232/WIFI, RS485+BMS) to connect to monitoring systems for real-time performance tracking and easier troubleshooting.
10. Warranty & Support
EDECOA products are manufactured to high-quality standards and are backed by a manufacturer's warranty. For warranty claims, technical support, or service inquiries, please contact your authorized dealer or EDECOA customer service. Keep your purchase receipt as proof of purchase.
