1. Introduction
This manual provides essential information for the safe and efficient operation of your ECGSOLAX Solar Hybrid Inverter. It covers models with 4.2KW and 6.2KW power ratings, supporting 24V or 48V battery systems, and featuring a 120A MPPT solar charger with a maximum PV input of 500VDC. Please read this manual thoroughly before installation and use.
2. Safety Information
Please observe the following safety precautions to prevent injury and damage to the inverter:
- Installation must be performed by qualified personnel.
- Ensure all wiring is correctly polarized and securely connected.
- Do not operate the inverter if it is damaged or appears to be malfunctioning.
- Keep away from water, moisture, and flammable materials.
- Ensure proper ventilation around the inverter to prevent overheating.
- Disconnect all power sources (PV, battery, utility) before performing any maintenance or wiring.
3. Product Overview
The ECGSOLAX Hybrid Inverter is designed to efficiently manage power from solar panels, batteries, and the utility grid to supply power to your home appliances. It features a pure sine wave output, ensuring compatibility with sensitive electronics.
3.1. Components and Indicators
- LCD display
- Status indicator
- Charging indicator
- Fault indicator
- Function buttons
- Power on / off switch
- AC input
- Main output
- Second output
- Battery input
- PV input
- RS-232 communication port / WiFi-port
- Circuit breaker
4. Specifications
Key technical specifications for the ECGSOLAX Solar Hybrid Inverter:
| Feature | Description |
|---|---|
| Model Number | 4.2K, 6.2K |
| Brand Name | ECGSOLAX |
| Output Type | DUAL (Pure Sine Wave) |
| Output Frequency | 50/60Hz (Automatic Frequency Range) |
| Battery Voltage | 24V / 48V |
| Max MPPT Charging Current | 120A |
| Max PV Input Voltage | 500VDC |
| Max PV Input Power | 6200W (for 6.2KW model) |
| Max PV Input Current | 18A / 27A |
| AC Output Power | 4200W / 6200W |
| Output Voltage | 220-240V |
| Is Smart Device | Yes (WiFi/GPRS available for IOS and Android) |
| Certification | CE |
| Origin | Mainland China |
| Dimensions (L x W x H) | 423 mm x 334 mm x 110 mm (16.6 in x 13.1 in x 4.3 in) |
| Net Weight | 10 kg (22.05 lb) |
5. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your hybrid inverter. Always ensure power is disconnected before making any connections.
5.1. System Connection Diagram
- Mounting: Choose a suitable location that is well-ventilated, dry, and away from direct sunlight or heat sources. Ensure the mounting surface can support the inverter's weight (approx. 10kg).
- Battery Connection: Connect the external battery packs to the designated battery input terminals (10). Ensure correct polarity. The inverter supports 24V or 48V battery systems. It is compatible with Lithium-ion batteries and supports BMS communication. The inverter can also operate in a battery-free mode.
- PV Input Connection: Connect your solar modules to the PV input terminals (11). Observe the maximum PV input voltage of 500VDC and maximum current (18A/27A) to prevent damage.
- AC Input Connection: Connect the utility grid or a generator to the AC input terminal (7).
- AC Output Connection: Connect your home appliances to the main output (8) and second output (9) terminals. The inverter provides a pure sine wave output suitable for various loads.
- Communication Port: For monitoring and control, connect to the RS-232 communication port or the optional WiFi-port (12).
- Circuit Breaker: Ensure the circuit breaker (13) is in the OFF position during installation.
5.2. Battery Compatibility
The inverter offers seamless multi-battery connectivity and supports battery-free operation. It is compatible with various battery types including AGM, GEL, FLD, LI, and SLD. For Lithium batteries, BMS communication is supported, specifically PylonTech BMS.
6. Operation
6.1. Initial Power-Up
- After all connections are secure, switch on the battery circuit breaker (if applicable).
- Switch on the PV input circuit breaker (if applicable).
- Switch on the AC input circuit breaker (if applicable).
- Finally, switch the inverter's Power On/Off switch (6) to the ON position.
- The LCD display (1) will light up, and the status indicator (2) will show the operational status.
6.2. LCD Display and Function Buttons
The LCD display provides real-time information about the inverter's status, input/output voltages, charging current, and more. Use the function buttons (5) to navigate through menus and adjust settings.
6.3. Charging and Output Modes
The inverter offers flexible charging and output modes to optimize energy usage:
Charging Modes:
- Solar Charging: Prioritizes solar power for battery charging.
- Utility Charge (Solar as backup power): Uses utility power for charging, with solar as a backup.
- Solar Priority (Utility as backup power): Prioritizes solar for charging, with utility as a backup.
- Solar + Utility Charging: Combines solar and utility power for charging.
Output Modes:
- PV Priority: Prioritizes solar power for loads.
- Utility Priority: Prioritizes utility power for loads.
- Load SBU Priority: Prioritizes solar, then battery, then utility for loads.
6.4. Pure Sine Wave Output
The inverter produces a pure sine wave output, identical to grid power, ensuring high quality AC power with high efficiency, stable output, and broad compatibility. This allows it to drive various sensitive loads without interference, such as TVs, refrigerators, computers, microwaves, and dishwashers.
6.5. Monitoring and Protection
The inverter includes multiple protection features and smart monitoring capabilities:
- Multiple Protection: Overcurrent, low voltage, short circuit, overheat, and overload protection.
- Intelligent Fan Speed Adjustment: Ensures optimal cooling and reduces noise.
- Wi-Fi Monitoring: The operation of the system can be controlled and monitored via a phone application (iOS and Android). Note: The Wi-Fi module may be an optional accessory.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter.
- Cleaning: Periodically clean the inverter's exterior with a dry cloth. Ensure ventilation openings are free from dust and debris.
- Connections: Annually check all electrical connections for tightness and signs of corrosion.
- Battery Health: If using batteries, monitor their health and charge levels regularly. Follow battery manufacturer's maintenance guidelines.
- Firmware Updates: Check the manufacturer's website or app for any available firmware updates to ensure optimal performance and new features.
- Anti-dust Kit: If equipped with an optional anti-dust kit, ensure it is clean and functioning correctly, especially in harsh environments.
8. Troubleshooting
This section covers common issues and their potential solutions. For more complex problems, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No power from battery/PV/utility; Inverter switch OFF; Blown fuse/circuit breaker. | Check all power sources and connections. Ensure inverter switch is ON. Check and reset circuit breakers. |
| No AC output | Overload; Short circuit; Low battery voltage; Inverter fault. | Reduce load. Check for short circuits in wiring. Check battery voltage. Refer to fault indicator (4) on LCD. |
| PV input not charging | Insufficient sunlight; PV panels disconnected/damaged; MPPT fault. | Ensure adequate sunlight. Check PV panel connections. Monitor PV input on LCD. |
| Overheating | Poor ventilation; Excessive load; High ambient temperature. | Ensure clear airflow around the inverter. Reduce load. Relocate inverter to a cooler area if possible. |
| Wi-Fi monitoring not working | Wi-Fi module not installed/connected; Network issues; App configuration error. | Verify Wi-Fi module installation. Check local network. Reconfigure app settings. |
9. User Tips
- Optional Wi-Fi Module: The inverter supports Wi-Fi monitoring for iOS and Android devices. If you wish to use this feature, ensure you have the optional Wi-Fi module installed.
- Battery-Free Operation: This hybrid inverter is capable of operating without a battery, directly supplying power from solar or utility to your loads. This can be useful for specific system configurations.
- BMS Communication: For optimal performance and safety with Lithium batteries, ensure your battery system supports BMS communication, especially if using PylonTech BMS, for seamless integration with the inverter.
- PV Input Current: Pay close attention to the maximum PV input current (18A/27A) when sizing your solar array to prevent damage to the MPPT charger.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your point of purchase or the ECGSOLAX customer service. Keep your purchase receipt and product serial number handy for faster service.
