1. Introduction
Thank you for choosing the LVYUAN 3000W Pure Sine Wave Inverter. This device converts 12V DC power from your vehicle battery or solar system into 110V AC power, suitable for operating various household appliances and electronic devices. Featuring a remote controller, LCD display, multiple AC sockets, and USB ports, this inverter is designed for convenience and reliability in mobile or off-grid applications. Please read this manual thoroughly before installation and operation to ensure safe and efficient use.
2. Safety Instructions
- Ventilation: Ensure the inverter is installed in a well-ventilated area. Do not block the ventilation openings.
- Moisture: Avoid exposing the inverter to water, rain, or excessive moisture.
- Heat Sources: Keep the inverter away from direct sunlight, heaters, or other heat sources.
- Flammable Materials: Do not operate the inverter near flammable liquids, gases, or other combustible materials.
- Proper Connections: Always connect the inverter to a 12V DC power source with correct polarity. Incorrect connections can damage the inverter and the power source.
- Grounding: The inverter must be properly grounded.
- Overload: Do not exceed the inverter's rated power output. Overloading can cause damage and pose a fire hazard.
- Children: Keep the inverter out of reach of children.
- Servicing: Do not attempt to disassemble or repair the inverter yourself. Refer all servicing to qualified personnel.
3. Product Overview
The LVYUAN 3000W Pure Sine Wave Inverter features a robust design with multiple output options and an intelligent LCD for monitoring. Below are the key components and their functions.

Figure 3.1: Front view of the LVYUAN 3000W Pure Sine Wave Inverter, highlighting the Intelligent LCD display showing battery capacity, output voltage, and load capacity. The inverter features four AC outlets and four USB ports.

Figure 3.2: Detailed view of the inverter's side and rear. This image points out the Intelligent LCD, four USB ports, power switch, four U.S. AC sockets, positive and negative DC input terminals, and cooling fans. Spare fuses are also shown.
Key Features:
- Intelligent LCD Display: Provides real-time information on battery capacity, output voltage, and load capacity.
- Multiple Output Ports: Equipped with 4 AC outlets and 4 USB ports for versatile power delivery.
- Remote Controller: Allows convenient power control from a distance.
- Cooling Fans: Integrated intelligent cooling fans for optimal temperature management.
- Protection Features: Includes 6 types of protection for safe operation.
4. Setup
Proper setup is crucial for the safe and efficient operation of your inverter.
4.1. Choosing a Location
- Select a dry, cool, and well-ventilated area.
- Avoid direct sunlight, heat, and moisture.
- Ensure sufficient space around the inverter for airflow, especially around the cooling fans.
4.2. Connecting to a 12V DC Power Source
- Ensure the inverter's power switch is in the 'OFF' position.
- Connect the red positive (+) cable to the positive (+) terminal of the inverter.
- Connect the black negative (-) cable to the negative (-) terminal of the inverter.
- Connect the other end of the red positive (+) cable to the positive (+) terminal of your 12V battery.
- Connect the other end of the black negative (-) cable to the negative (-) terminal of your 12V battery.
- Ensure all connections are tight and secure to prevent loose connections and sparking.
4.3. Remote Controller Connection
Plug the remote controller cable into the designated port on the inverter. The remote allows you to power the inverter on or off from a convenient location.

Figure 4.1: Image showing the dimensions of the LVYUAN 3000W Pure Sine Wave Inverter, along with the included DC input cables and the remote controller.
5. Operating Instructions
5.1. Powering On/Off
- After ensuring all connections are secure, switch the inverter's main power button to the 'ON' position.
- The LCD display will illuminate, showing the battery voltage and output voltage.
- To turn off the inverter, switch the main power button to the 'OFF' position. If using the remote, ensure the main switch is 'ON' and use the remote to toggle power.
5.2. Using AC Outlets and USB Ports
- Plug your 110V AC appliances into the AC outlets. Ensure the total wattage of all connected appliances does not exceed the inverter's continuous power rating (3000W).
- Connect your USB-powered devices to the USB ports for charging.
- For optimal performance, start larger loads one at a time.
5.3. Understanding the LCD Display
The intelligent LCD display provides critical information:
- Battery Capacity: Indicates the remaining charge in your 12V battery.
- Output Voltage: Shows the AC output voltage (typically 110V).
- Load Capacity: Displays the percentage of the inverter's capacity currently being used by connected devices.
6. Protection Features
The LVYUAN 3000W Pure Sine Wave Inverter is equipped with multiple protection mechanisms to ensure safe and reliable operation for both the inverter and your connected devices.

Figure 6.1: Diagram illustrating the six types of protection integrated into the LVYUAN Pure Sine Wave Inverter, including low voltage, short circuit, high temperature, overload, high voltage, and anti-reverse-connection protection.
- Low Voltage Protection: Automatically shuts down the inverter if the input DC voltage drops too low, protecting your battery from deep discharge.
- Short Circuit Protection: Prevents damage in case of a short circuit in the output.
- High Temperature Protection: Activates cooling fans and may shut down the inverter if internal temperature exceeds safe limits.
- Overload Protection: Shuts down the inverter if the connected load exceeds its rated capacity.
- High Voltage Protection: Protects the inverter from damage if the input DC voltage is too high.
- Anti-Reverse-Connection Protection: Prevents damage if the battery cables are connected with incorrect polarity.

Figure 6.2: Close-up view of the inverter's intelligent cooling fans, emphasizing their role in temperature control and high temperature protection for durable operation.
7. Applications
This pure sine wave inverter is suitable for a wide range of applications, providing stable and clean AC power for sensitive electronics.

Figure 7.1: Visual representation of the inverter's capability to power common household and portable electronics, including printers, computers, TVs, electric kettles, rice cookers, water pumps, hand drills, angle grinders, and car refrigerators.

Figure 7.2: Examples of diverse environments where the inverter can be used, such as workshops for power tools, RVs for travel, camping for outdoor power, and general home use for vacuum cleaners.
8. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter.
- Cleaning: Periodically clean the exterior of the inverter with a dry, soft cloth. Ensure ventilation openings are free from dust and debris.
- Connection Check: Regularly inspect all DC and AC connections to ensure they are tight and free from corrosion.
- Storage: If storing the inverter for an extended period, disconnect it from the power source and store it in a cool, dry place.
9. Troubleshooting
If you encounter issues with your inverter, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power output / Inverter not turning on | Loose battery connections, low battery voltage, blown fuse, inverter switch off. | Check battery connections, charge battery, replace fuses (if applicable), ensure inverter switch is ON. |
| Low output voltage | Overload, low battery voltage, poor connections. | Reduce load, charge battery, check and tighten connections. |
| Inverter shuts down frequently | Overload, high temperature, low/high input voltage. | Reduce load, ensure proper ventilation, check battery voltage. |
| Cooling fan not operating | Inverter not under load, fan malfunction, high temperature not reached. | Fans operate based on temperature/load. If inverter is hot and fans are off, contact support. |
10. Specifications
Technical specifications for the LVYUAN 3000W Pure Sine Wave Inverter.
| Feature | Detail |
|---|---|
| Brand | LVYUAN |
| Model Name | 3000W with Remote Controller |
| Wattage (Continuous) | 3000 Watts |
| Wattage (Peak) | 6000 Watts |
| Input Voltage | 12V DC |
| Output Voltage | 110V AC |
| Output Waveform | Pure Sine Wave |
| AC Outlets | 4 |
| USB Ports | 4 |
| Product Dimensions | 14.2"L x 6.5"W x 3.9"H (36cm x 16.5cm x 10cm) |
| Item Weight | 7.92 pounds |
11. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact LVYUAN customer service directly. Keep your purchase receipt for warranty claims.





