1. Introduction
This manual provides detailed instructions for the safe and efficient operation of your EDECOA 3500W Pure Sine Wave Power Inverter. This device converts 12V DC power from batteries into 220V-240V AC power, suitable for a wide range of household and outdoor appliances. Featuring a pure sine wave output, intelligent control, and multiple protection functions, it is ideal for solar systems, vehicles, homes, and boats.
Figure 1: EDECOA 3500W Pure Sine Wave Power Inverter with ET-RC Remote Controller.
2. Important Safety Instructions
Please read and understand all safety instructions before installing or operating the inverter. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the inverter is installed in a well-ventilated, dry, and cool environment, away from direct sunlight, heat sources, and flammable materials.
- Do not expose the inverter to rain, moisture, or any liquids.
- Connect the inverter only to a 12V DC power source. Verify the correct polarity before making connections.
- WARNING: DO NOT REVERSE INPUT POLARITY. Incorrect connection can cause severe damage to the inverter and void the warranty.
- Ensure all connections are tight and secure to prevent loose connections and overheating.
- Do not open the inverter casing. There are no user-serviceable parts inside. Refer servicing to qualified personnel.
- Keep children away from the inverter.
- Always disconnect the battery before performing any maintenance or cleaning.
Figure 2: Example of inverter usage in a home environment.
3. Package Contents
Please check the package for the following items:
- EDECOA 3500W Pure Sine Wave Power Inverter
- ET-RC Remote Controller with LCD display
- RJ45 Cable (4-meter) for remote controller
- Battery Cables (50mm² x 600mm)
- User Manual (this document)
Figure 3: Included components: Inverter, ET-RC remote, and connection cables.
4. Product Overview
4.1. Inverter Components
Figure 4: Inverter front and rear panels.
- Front Panel:
- ON/OFF/ECO Switch: Main power and mode selection.
- RJ45 Remote Port: For connecting the ET-RC remote controller.
- 2 EU Sockets: AC output for appliances.
- WORK/ERROR Indicators: Status lights.
- Rear Panel:
- Pure Copper Terminals: DC input (+ and -) for battery connection.
- Intelligent Cooling Fans: Automatically activate based on temperature.
4.2. ET-RC Remote Controller
Figure 5: ET-RC Remote Controller features.
The ET-RC remote controller provides convenient monitoring and control of the inverter. It features:
- LCD Display: Shows battery power, input voltage, output voltage, frequency, alarm conditions, and appliance wattages.
- Power Switch: To turn the inverter ON/OFF remotely.
- Dual USB Ports (5V/2.1A): For charging mobile phones and tablets.
- RJ45 Port: Connects to the inverter via the provided 4-meter cable.
Figure 6: ET-RC Remote Controller with RJ45 cable and installation dimensions (74x79mm).
5. Setup and Installation
Follow these steps to properly set up your EDECOA power inverter.
5.1. Choosing a Location
- Install the inverter in a dry, cool, and well-ventilated area.
- Avoid locations exposed to direct sunlight, heat, moisture, or corrosive fumes.
- Ensure there is sufficient space around the inverter for proper airflow, especially around the cooling fans.
5.2. Connecting to a Battery Source
- Ensure the inverter's power switch is in the "OFF" position.
- Connect the red battery cable to the positive (+) terminal of your 12V DC battery.
- Connect the other end of the red battery cable to the positive (+) pure copper terminal on the inverter.
- Connect the black battery cable to the negative (-) terminal of your 12V DC battery.
- Connect the other end of the black battery cable to the negative (-) pure copper terminal on the inverter.
- Ensure all connections are tight and secure.
Important: The battery cables provided are 50mm² in cross-sectional area and 600mm in length. Using cables of insufficient gauge or excessive length can lead to voltage drop and reduced performance.
5.3. Connecting the Remote Controller
- Plug one end of the RJ45 cable into the RJ45 Remote Port on the inverter's front panel.
- Plug the other end of the RJ45 cable into the corresponding port on the ET-RC remote controller.
- The remote controller can be mounted in a convenient location using its installation dimensions (74x79mm).
5.4. System Connection Diagram
Figure 7: Typical connection diagram for a solar system with inverter and appliances.
This diagram illustrates a common setup where solar panels charge a battery, which then powers the inverter to supply AC power to various appliances.
6. Operating Instructions
6.1. Powering On/Off
- Ensure all DC and AC connections are secure.
- Set the inverter's main switch to the "ON" position. The "WORK" indicator should light up.
- Alternatively, use the power switch on the ET-RC remote controller to turn the inverter ON/OFF.
- To turn off, set the inverter's main switch to "OFF" or use the remote controller.
6.2. ECO Mode Operation
The inverter features an ECO mode to save battery power by reducing standby consumption.
- To activate ECO mode, set the inverter's main switch to the "ECO" position.
- In ECO mode, the inverter's standby power consumption is reduced to less than 13W, compared to less than 25W in normal mode.
- Note: When in ECO mode, the inverter will intermittently start and stop to conserve energy. During the "stop" phase, the inverter output voltage will momentarily display 0V. This is normal behavior. The inverter will resume full operation when a load of ≥15W is detected.
Figure 8: ECO Mode switch and standby power comparison.
6.3. Connecting AC Appliances
- Plug your 220V-240V AC appliances into the EU sockets on the inverter's front panel.
- Ensure the total wattage of connected appliances does not exceed the inverter's rated power of 3500W. The surge power is 7000W for 0.1 seconds.
- The pure sine wave output is suitable for sensitive electronics, causing less damage and loss to your devices.
Figure 9: Examples of 230V appliances compatible with the inverter.
6.4. Using the Remote Controller for Charging
- The ET-RC remote controller has dual USB ports (5V/2.1A) for charging mobile devices.
- Simply connect your mobile phone or tablet to the USB ports using a compatible cable.
Figure 10: Charging mobile devices using the ET-RC remote controller's USB ports.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your inverter.
- Cleaning: Periodically clean the exterior of the inverter with a dry, soft cloth. Do not use liquid cleaners or solvents. Ensure ventilation openings are free from dust and debris.
- Fan Operation: The dual intelligent temperature control fans will start automatically when the internal temperature reaches ≥45±5°C. This helps dissipate heat and ensures quiet operation when cooling is not needed.
- Connections: Regularly check all DC and AC connections to ensure they are tight and free from corrosion.
- Battery: Monitor your battery's health and charge level, as recommended by the battery manufacturer.
Figure 11: Dual intelligent cooling fans for optimal heat dissipation.
8. Troubleshooting
The inverter is equipped with multiple protection functions and a buzzer reminder system to alert you to potential issues.
8.1. Protection Functions and Alarms
Figure 12: Inverter protection features and audible alarms.
- Over-load Protection (5 Beeps): Occurs when connected appliances exceed the inverter's capacity. Reduce the load.
- Temperature Protection (4 Beeps): Activates if the internal temperature exceeds 65°C. Ensure proper ventilation and reduce load.
- Low-Voltage Protection (2 Beeps): Triggers when DC input voltage drops to 10V±0.3V. Recharge or replace the battery. The inverter will automatically recover when voltage returns to 12.5V±0.3V.
- Over-Voltage Protection (3 Beeps): Activates if DC input voltage exceeds ≥16V. Check the charging source. The inverter will automatically recover when voltage returns to 15V±0.3V.
- Output Short Circuit Protection: Automatically shuts down output in case of a short circuit.
- Input Low Voltage Alarm: Sounds at 10.5V±0.3V, indicating the battery is getting low.
- Input High Voltage Shutdown Protection: Shuts down if input voltage is too high.
- Automatic Reset Function: After input high voltage or low voltage shutdown, the inverter will automatically restore output when the input voltage returns to normal operating range.
8.2. Common Issues
| Problem | Possible Cause | Solution |
|---|---|---|
| No AC output | Inverter OFF, low battery, overload, protection triggered. | Turn ON inverter, check battery voltage, reduce load, check for alarm codes. |
| Buzzer sounds continuously | Protection function activated (e.g., overload, low voltage). | Refer to "Protection Functions and Alarms" section to identify and resolve the specific issue. |
| Inverter intermittently starts/stops in ECO mode | Normal operation in ECO mode with low load. | This is expected behavior. The inverter will activate fully when a load of 15W or more is connected. |
| Remote controller not displaying data | RJ45 cable loose or disconnected. | Check and secure the RJ45 cable connection between the inverter and the remote controller. |
9. Specifications
| Feature | Specification |
|---|---|
| Rated Power | 3500W |
| Surge Power | 7000W |
| DC Input Voltage | 12V |
| AC Output Voltage | 220V~240V |
| AC Output Frequency | 50Hz |
| AC Output Waveform | Pure Sine Wave |
| USB Output (Remote) | DC 5V/2.1A |
| Waveform Distortion (THD) | <3% (Linear load) |
| Efficiency (＞90% Load) | ＞90%, Max 92% |
| DC Input Voltage Range | 10.5V~15V |
| Input Low Voltage Alarm | 10.5V±0.3V |
| Low Voltage Alarm Recovery Voltage | 11.5V±0.3V |
| Input Undervoltage Shutdown Voltage | 10V±0.3V |
| Self-recovery Voltage after Undervoltage Protection | 12.5V±0.3V |
| Input Overvoltage Shutdown Voltage | ≥16V |
| Self-recovery Voltage after Overvoltage Protection | 15V±0.3V |
| Standby Power Consumption | Normal mode <25W, ECO mode <13W |
| Minimum Starting Power in ECO Mode | ≥15W |
| Surge Power Duration | 0.1S |
| Net Weight | 7.1 kg |
| Dimensions (L x W x H) | 35x24x17 cm |
| Battery Cable (Cross-sectional area*length) | 50mm²x600mm |
| Fan Starting Temperature | ≥ 45 ℃ |
| Temperature Protection | 65 ℃ |
9.1. Recommended Battery Capacity and Running Time
Figure 13: Guide for recommended battery capacity (AH) and approximate running time based on appliance wattage and inverter voltage.
10. User Tips
- Appliance Compatibility: This inverter provides a pure sine wave output, making it suitable for sensitive electronics and inductive loads like motors and compressors. When connecting high-power appliances, ensure their starting (surge) power does not exceed the inverter's 7000W surge capacity.
- Efficiency: With an efficiency of over 90%, this inverter minimizes power loss during conversion, maximizing your battery's usable energy.
- Remote Monitoring: Utilize the ET-RC remote controller's LCD display to continuously monitor input/output voltages, battery status, and load wattages for optimal system management.
- USB Charging: The remote controller's dual USB ports are convenient for charging small devices like phones and tablets directly, reducing the need for additional adapters.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please contact EDECOA customer service through your purchase platform or the official EDECOA website. Please have your product model and purchase date available when contacting support.
12. Certifications
This EDECOA power inverter complies with the following standards:
- CE (Conformité Européenne)
- RoHS (Restriction of Hazardous Substances)
Figure 14: Product Certifications (CE, RoHS).
