1. Safety Instructions
Please read all instructions and warnings carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, severe injury, or death. Keep this manual for future reference.
- Installation must be performed by qualified personnel in accordance with local electrical codes.
- Ensure the inverter is disconnected from all power sources (solar, battery, AC grid) before performing any maintenance or wiring.
- Do not attempt to disassemble or repair the inverter yourself. Contact qualified service personnel.
- Avoid exposing the inverter to rain, snow, spray, or any liquids.
- Ensure proper ventilation around the inverter to prevent overheating.
- Use appropriate wire gauges and circuit breakers as specified in the installation section.
- Keep children away from the inverter and its connections.
2. Product Overview
The LVYUAN Hybrid Solar Inverter is a versatile device designed for off-grid systems, integrating a 5000W pure sine wave inverter, a 100A MPPT solar charger, and a 120A AC charger. It provides stable and clean power for various applications.
Key Features:
- 5000W Pure Sine Wave Output: Delivers stable 120V AC power suitable for sensitive electronics.
- High Efficiency: Up to 93% inversion efficiency with advanced high-frequency soft-switching technology.
- Integrated MPPT Solar Charger: Max 100A PV charge current with up to 99.5% conversion efficiency.
- Multiple Operation Modes: Supports Storage Priority, AC Charge Off, and Supply Priority for flexible power management.
- UPS Functionality: Automatic switching to battery power during grid outages for continuous supply.
- Graphical LCD Interface: Real-time monitoring of voltage, power, energy, and fault information.
- Battery Compatibility: Supports lead-acid (VRLA, GEL, AGM, FLD, SLA) and various lithium battery brands (LiFePO4, NMC) with BMS communication.
- Parallel Capability: Up to 6 units can be paralleled for system power expansion.
- Remote Monitoring: Optional WiFi module for mobile app monitoring.
Component Identification:
Refer to the diagram below for the identification of the inverter's components and ports.
Image: Front and rear view of the LVYUAN Hybrid Solar Inverter with numbered labels for each component, including LCD screen, LED indicators, touchable buttons, AC input/output, parallel interface, cooling fan, battery input, PV input, RS485, BMS, USB, dry contact, and WiFi interface.
- LCD screen
- LED Indicators
- Touchable buttons
- AC INPUT
- Parallel interface
- AC OUTPUT
- Start switch
- Cooling Fan
- Battery Input
- PV input cable hole
- RS485 Communications
- BMS communication
- USB port
- Dry contact interface
- WiFi Interface
3. Setup and Installation
Proper installation is crucial for the safe and efficient operation of your inverter. Ensure all safety precautions are followed.
What's in the Box:
- 5000W Inverter main unit × 1
- Battery connection copper tubular terminals (model SC35-6) × 2 (for connecting battery cables)
- Communication cable (USB-B to USB-A, 1.2m) × 1 (for computer connection)
- Expansion tube with fixing screws (M6×50mm) × 3 sets (for wall mounting)
- Mains input/load output wiring terminals (tubular pre-insulated terminals, model E16-12, suitable for 6AWG-16mm² cables, red) × 4
Image: Contents of the product package, including the user manual, various tubular terminals, and an OT terminal.
Mounting the Inverter:
Mount the inverter on a vertical, non-flammable surface in a well-ventilated area, away from direct sunlight, heat sources, and moisture. Use the provided expansion tubes and screws for wall mounting.
Wiring Connections:
Follow the diagram below for connecting the PV array, battery system, AC input (grid/generator), and AC output (loads). Ensure all connections are secure and use the recommended cable sizes.
Image: A detailed diagram illustrating the connections for a solar-powered AC system, showing the inverter's rear panel with inputs for AC charging, AC output, solar charging (PV+ PV-), and 48V battery (BAT+ BAT-).
Recommended Cable Sizing and Breakers:
| Terminal | Recommended Cable Size | Recommended Breaker |
|---|---|---|
| Battery | 2~3AWG (25-35mm²) | 2P ≥ 130A |
| AC Input | 5~7AWG (12-15mm²) | 2P ≥ 100A |
| AC Output | 5~7AWG (12-15mm²) | 2P ≥ 100A |
| PV | 9~10AWG (4.5-6.75mm²) | 2P ≥ 30A |
Note: Ensure all wiring is done with appropriate tools and that connections are tight to prevent loose contacts and potential hazards. The inverter supports various battery types, including lead-acid (VRLA, GEL, AGM, FLD, SLA) and lithium batteries (LiFePO4, NMC). Ensure your battery system is 48V.
Image: The LVYUAN Hybrid Solar Inverter displayed alongside various battery types it is compatible with, including LI (Lithium), GEL, FLD (Flooded), AGM, and SLA (Sealed Lead Acid).
4. Operating Instructions
Once installed, the inverter can be powered on and configured for optimal operation.
Powering On:
- Ensure all wiring connections are correct and secure.
- Turn on the battery breaker first.
- Turn on the PV array breaker (if applicable).
- Turn on the AC input breaker (if applicable).
- Press the 'Start switch' on the inverter (Component 7 in the Product Overview diagram).
- The LCD screen will illuminate, and the inverter will begin its startup sequence.
LCD Display and Control:
The inverter features an LCD screen and four touchable buttons (Component 3) for real-time monitoring and setting adjustments. The display shows input/output information, mode, battery status, and load information.
Image: A detailed view of the inverter's LCD screen, highlighting real-time input (AC, PV) and output (AC) voltage, power, and graphical representation of battery and load status.
Operation Modes:
The inverter offers flexible charging and load priority modes to optimize energy usage. These modes can be configured via the LCD control panel.
Image: Visual representation of the inverter's configurable charging and load priority settings, showing options like 'Only Solar Charging', 'PV priority', 'Utility Priority', 'Hybrid Charging', and 'Inverter Mode'.
Charging Priority Modes:
- Only Solar Charging: Prioritizes solar power for battery charging.
- PV Priority: Solar power is the primary source for charging, supplemented by utility if solar is insufficient.
- Utility Priority: Utility grid is the primary source for charging.
- Hybrid Charging: Uses a combination of solar and utility power for charging.
Load Priority Modes:
- PV Priority: Loads are primarily powered by solar, then battery, then utility.
- Utility Priority: Loads are primarily powered by utility, then battery, then solar.
- Inverter Mode: Loads are powered by battery, then utility (typical UPS function).
To select these modes, navigate through the LCD menu using the touchable buttons. Specific menu paths and button functions will be detailed in the full product manual. Generally, there are 'Up', 'Down', 'Enter', and 'Esc' buttons to navigate and confirm selections.
WiFi Monitoring (Optional):
An optional WiFi module can be purchased and connected to the inverter for remote monitoring via a mobile application. This allows you to view real-time data and manage settings from your smartphone.
Image: The LVYUAN Hybrid Solar Inverter with an attached WiFi module, demonstrating remote monitoring capabilities through a mobile application displaying energy flow, data, charts, settings, and analysis.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your LVYUAN Hybrid Solar Inverter.
- Cleaning: Periodically clean the inverter's exterior with a dry cloth. Ensure ventilation openings and cooling fans (Component 8) are free from dust and debris. Do not use liquid cleaners.
- Connection Check: Annually inspect all electrical connections (battery, PV, AC input/output) for tightness and signs of corrosion. Tighten any loose connections.
- Environmental Check: Ensure the installation environment remains within the specified temperature range (-10℃ to 50℃) and is free from excessive humidity or corrosive gases.
- Battery Inspection: Follow the manufacturer's maintenance guidelines for your specific battery type.
- Firmware Updates: Check the manufacturer's website for any available firmware updates for improved performance or new features.
6. Troubleshooting
This section provides solutions to common issues you might encounter. For problems not listed here, contact customer support.
Common Issues and Solutions:
- Inverter does not power on:
- Check if the battery is connected and charged.
- Verify all battery and AC input breakers are in the 'ON' position.
- Ensure the 'Start switch' on the inverter is pressed.
- "Battery Not Connected" error on LCD:
- Even if physically connected, check the tightness of battery terminals. Loose connections can prevent detection.
- Verify battery voltage is within the operating range (48V nominal).
- Inspect battery cables for damage or incorrect polarity.
- No AC output:
- Check if the inverter is displaying any fault codes.
- Ensure the AC output breaker is 'ON'.
- Verify that the load connected does not exceed the inverter's rated power (5000W).
- Check the selected operation mode; ensure it allows AC output.
- Solar charging not working:
- Check PV input connections and ensure PV array breaker is 'ON'.
- Verify PV voltage is within the MPPT operating range (120-450VDC).
- Ensure there is sufficient sunlight and no shading on the solar panels.
- Check the charging priority settings on the LCD.
- Inverter is making unusual noises:
- A slight hum is normal. Loud or unusual noises may indicate an issue.
- Check if cooling fans are obstructed or faulty.
- Reduce the load to see if the noise subsides.
7. Specifications
Detailed technical specifications for the LVYUAN Hybrid Solar Inverter 5000W.
| Feature | Specification |
|---|---|
| Brand | LVYUAN |
| Model Name | B0FSJR783K |
| Wattage | 5000 watts |
| Peak Output Power | 10000 watts |
| Inverter Capacity | 5000 VA |
| Input Voltage (DC) | 48 Volts (DC) |
| AC Output Voltage | 120 Volts (AC) |
| Electrical Output Waveform | Pure Sine Wave |
| AC Input Voltage Range | 90-140VAC |
| AC Input Rated Frequency | 50/60Hz |
| Max PV Input Power | 6000W |
| Max PV Input Current | 27A |
| MPPT PV Voltage Range | 120-450VDC |
| Max PV Charge Current | 100A |
| Max AC Charge Current | 100A |
| Battery Type Compatibility | Lead-acid, Lithium (with BMS communication) |
| Display Type | LCD |
| Operating Temperature | -10℃ to 50℃ |
| Item Dimensions (L x W x H) | 13.5"L x 4.7"W x 17"H |
8. Warranty and Support
Warranty Information:
This LVYUAN Hybrid Solar Inverter comes with a 12-Months Warranty from the date of purchase. The warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by improper installation, misuse, accidents, unauthorized repairs, or acts of nature.
Customer Support:
For technical assistance, warranty claims, or any questions regarding your inverter, please refer to the contact information provided on the product packaging or the official LVYUAN website. When contacting support, please have your product model number (B0FSJR783K) and purchase date available.
