1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Deye SUN-8K-SG04LP3-EU Hybrid Solar Inverter. Please read this manual thoroughly before installation and operation, and keep it for future reference.
The Deye SUN-8K-SG04LP3-EU is an 8KW hybrid solar inverter designed for both grid-tied and off-grid applications, supporting solar PV input and battery storage. It features high efficiency, dual MPPT trackers, and robust protection mechanisms.
2. Safety Instructions
Always observe the following safety precautions to prevent injury and damage to the inverter:
- Installation must be performed by qualified personnel.
- Ensure the inverter is disconnected from all power sources (PV, battery, grid) before performing any maintenance or installation work.
- Do not open the inverter casing unless explicitly instructed by the manufacturer.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
- The inverter is designed for specific voltage and current ranges. Do not exceed these limits.
- Ensure proper grounding of the inverter.
- Keep children away from the inverter and installation area.
3. Product Overview
The Deye SUN-8K-SG04LP3-EU Hybrid Solar Inverter is a versatile unit capable of managing solar power generation, battery charging, and power supply to loads, with grid interaction. Key features include:
- Max. Efficiency: 97.6%
- 2 MPPT (Maximum Power Point Tracking) for optimal solar harvest
- RS485/CAN communication for BMS (Battery Management System)
- Internal SPD (Surge Protection Device)
- Zero Export function
- IP65 Ingress Protection for outdoor installation
- High Surge Endurance
- High Power Factor
- AC Coupled capability
- Support for Generator Connection
- Six Time of Use Settings
- Support for Multiple Parallel units
4. Installation
4.1 Unpacking and Inspection
Upon receiving the inverter, carefully unpack it and inspect for any signs of damage during transit. Ensure all components listed in the packing list are present. The package typically includes the inverter, user manual, and various accessories for installation.
4.2 Mounting Location
Choose a mounting location that is:
- Well-ventilated to ensure adequate cooling.
- Protected from direct sunlight, rain, and excessive dust.
- Accessible for maintenance and monitoring.
- Strong enough to support the inverter's weight (approximately 32 kg).
- Within the operating temperature range of -25°C to 60°C.
- Wall-mounted installation is recommended.
4.3 Wiring Connections
Refer to the system architecture diagram for a comprehensive understanding of the connections. All wiring must comply with local electrical codes and standards.
- PV Input: Connect the solar panel strings to the DC+ and DC- terminals. The inverter has two MPPT trackers, each supporting multiple strings. Ensure correct polarity and voltage/current limits are observed.
- Battery Connection: Connect the battery bank to the dedicated battery terminals. Ensure correct polarity. The inverter supports lead-acid or lithium-iron batteries with a voltage range of 40-60V.
- Grid Connection: Connect the grid input to the 'GRID' terminals.
- Load Connection: Connect critical and common loads to the 'LOAD' terminals.
- Generator Connection: If using a generator, connect it to the 'GEN' terminals.
- Communication: Connect RS485 and CAN communication cables for BMS integration and monitoring.
- Grounding: Ensure the inverter chassis is properly grounded according to local regulations.
5. Operation
5.1 Initial Startup
- After completing all wiring connections and verifying their correctness, switch on the DC disconnects for the PV array.
- Switch on the battery breaker.
- Switch on the AC breaker for the grid connection.
- Finally, switch on the AC output breaker to power the loads.
- The inverter will perform a self-test and then begin operation. Monitor the display for status and any error messages.
5.2 Display and Settings
The inverter features an integrated LCD display for monitoring system status and configuring operational parameters. Use the navigation buttons (Up, Down, Esc, Enter) to navigate through menus.
5.3 Grid Peak Shaving Function
The 'Grid Peak Shaving' function allows the inverter to reduce power drawn from the grid during peak demand times by utilizing stored battery energy or solar generation. To configure this function:
- Access the 'System Setup' menu on the inverter display.
- Navigate to 'System Work Mode'.
- Enable 'Grid Peak Shaving' and set the desired power limit (e.g., 8000W).
- You can also configure 'Time of Use' settings in 'Work Mode 2' to specify periods for grid charge, generator charge, and power limits.
- Adjust battery settings, such as 'Low Batt' percentage (e.g., 20%) to ensure the battery is not excessively discharged.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Deye Hybrid Solar Inverter.
- Visual Inspection: Periodically inspect the inverter for any visible damage, loose connections, or corrosion.
- Cleaning: Keep the inverter's ventilation openings clear of dust and debris. Use a soft, dry cloth to clean the exterior. Do not use liquid cleaners.
- Fan Check: Ensure the cooling fans are operating correctly and not obstructed.
- Connection Check: Annually, or as needed, verify that all electrical connections (PV, battery, grid, load) are secure and free from wear.
- Firmware Updates: Check the manufacturer's website for any available firmware updates to ensure optimal performance and access to new features.
7. Troubleshooting
If the inverter is not operating as expected, refer to the following basic troubleshooting steps:
- No Power/Display Off: Check all input power sources (PV, battery, grid) and their respective breakers/fuses. Ensure the inverter is properly connected and switched on.
- Low Power Output: Verify that PV panels are clean and not shaded. Check PV input voltage and current. Ensure battery charge level is adequate if operating in battery-priority mode.
- Error Codes: Consult the inverter's display for any error codes. Refer to the full user manual (if available from the manufacturer) for specific error code explanations and solutions.
- System Shutdown: The inverter may shut down due to over-voltage, under-voltage, over-temperature, or other fault conditions. Check for environmental factors or system imbalances.
For persistent issues, contact qualified service personnel or the manufacturer's support.
8. Specifications
| Category | Parameter | Value (8KW Model) |
|---|---|---|
| Battery Input Data | ||
| Battery Type | Lead-acid or Lithium-iron | |
| Battery Voltage Range | (V) | 40-60V |
| Max. Charging Current | (A) | 190A |
| Max. Discharging Current | (A) | 190A |
| Charging Curve | 3 Stages/Equalization | |
| External Temperature Sensor | Optional | |
| Charging Strategy for Li-Ion Battery | Self-adaption to BMS | |
| PV Strings Input Data | ||
| Max. DC Input Power | (W) | 10400W |
| PV Input Voltage | (V) | 370V (100V~500V) |
| MPPT Range | (V) | 125-425V |
| Full Load DC Voltage Range | 240-425V | |
| Start-up Voltage | (V) | 150V |
| PV Input Current | (A) | 18A+18A |
| No. of MPPT Trackers | 2 | |
| No. of Strings Per MPPT Tracker | 2+2 | |
| AC Output Data | ||
| Rated AC Output and UPS Power | (W) | 8000W |
| Max AC Output Power | (W) | 8800W |
| Peak Power (off grid) | 2 times of rated power, 10S | |
| AC Output Rated Current | (A) | 35A |
| Max. AC Current | (A) | 40A |
| Max Continuous AC Passthrough | (A) | 50A |
| Power Factor | 0.8 leading to 0.8 lagging | |
| Output Frequency and Voltage | 50/60Hz; 230V (single phase) | |
| Grid Type | Single Phase | |
| Current Harmonic Distortion | THD<3% (Linear load<1.5%) | |
| Efficiency | ||
| Max. Efficiency | 97.60% | |
| Euro Efficiency | 97.00% | |
| MPPT Efficiency | 99.90% | |
| General Data | ||
| Operating Temperature Range | (°C) | -25~60°C, >45°C Derating |
| Cooling | Fan | |
| Noise | (dB) | <30 |
| Communication with BMS | RS485; CAN | |
| Weight | (kg) | 32 |
| Size (Length×Width×Height) | (mm) | 670×420×233mm |
| Protection Degree | IP65 | |
| Installation Style | Wall-mounted | |
| Warranty | 5 years | |
| Certifications and Standards | ||
| Grid Regulation | VDE 0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116, IEC61727 | |
| Safety Regulation | IEC62109-1, IEC62109-2 | |
| EMC | EN61000-6-1, EN61000-6-3 | |
9. User Tips
- For optimal performance, ensure your PV array voltage is within the MPPT range (125-425V) during operation.
- Regularly check the inverter's display for operational status and any alerts.
- If integrating with a battery, ensure the battery's BMS is compatible with the inverter's communication protocols (RS485/CAN).
- Consider using the 'Grid Peak Shaving' feature to optimize energy costs during periods of high grid electricity prices.
10. Warranty and Support
The Deye SUN-8K-SG04LP3-EU Hybrid Solar Inverter comes with a 5-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service conditions.
For technical support, warranty claims, or service inquiries, please contact your authorized dealer or the manufacturer directly. Ensure you have your product model and serial number available when contacting support.
Manufacturer/Seller Contact:
- Store Name: Sunshine New Energy Technology Co .,Ltd Store
- Email: sunshinesolar01@163.com
- WhatsApp: +86 13295687202
