Deye SUN-3K-SG04LP1 Hybrid Inverter User Manual

1. Introduction

The Deye SUN-3K-SG04LP1 hybrid inverter is designed for residential and light commercial applications, optimizing the self-consumption of solar energy and enhancing energy independence. This inverter provides a stable and uninterrupted power source, ensuring your home and essential devices remain operational. It supports both 24V and 48V Lithium and Lead-acid batteries, offering flexibility and improved system safety.

During the day, the photovoltaic (PV) system generates electricity that first powers the connected loads. Any excess energy then charges the battery via the inverter. When needed, the stored energy can be discharged to supply the loads. For enhanced reliability, the battery can also be charged by a diesel generator, ensuring continuous power supply even during grid outages.

2. Product Features

• Colorful Touch LCD: User-friendly interface for easy monitoring and control.
• IP65 Protection Degree: Ensures durability and protection against dust and water ingress.
• AC Couple Functionality: Allows retrofitting into existing solar systems.
• Parallel Operation: Supports up to 16 units in parallel for both on-grid and off-grid operations, enabling scalability.
• Multiple Battery Support: Compatible with various battery types, including 24V/48V Lithium and Lead-acid batteries, and supports multiple batteries in parallel.
• High Charging/Discharging Current: Maximum charging/discharging current of 135A.
• Flexible Battery Management: Offers 6 configurable time periods for battery charging and discharging.
• Diesel Generator Compatibility: Supports storing energy from a diesel generator.
• RS485/CAN Port: Equipped for efficient battery communication.
• WiFi Monitoring: Features WiFi/GPRS function for remote monitoring of real-time running status via a smartphone app.

3. Component Identification

Familiarize yourself with the various components and connection points of your Deye Hybrid Inverter:

4. Installation Guidelines

The Deye Hybrid Inverter is designed for integration into a comprehensive solar energy system. Proper installation is crucial for optimal performance and safety. It typically involves connecting solar panels (PV module), a battery (lithium or lead-acid), various loads (smart, critical, common), and the utility grid.

Warning: Electrical Shock Hazard. Installation should only be performed by qualified personnel in accordance with all local and national electrical codes.

4.1 System Overview

The diagram above illustrates how the hybrid inverter manages energy flow:

• Day with Solar Energy: Solar panels generate power, which is used by the home loads. Excess power charges the battery and can be fed back to the grid.
• In the Evening: When solar production is low, power is drawn from the battery to supply home loads. If battery power is insufficient, power is drawn from the grid.
• Day without Grid: In an off-grid scenario, solar power directly supplies loads and charges the battery.
• Power Failure: The inverter can provide backup power from the battery to critical loads, ensuring essential appliances remain functional.

5. Operation

5.1 Powering On/Off

Locate the ON/OFF switch (Component 12 in Figure 4) on the side of the inverter. Turn the switch to the 'ON' position to power on the inverter. Ensure all connections are secure before powering on.

5.2 Monitoring and Control

The inverter features a colorful touch LCD (Component 2 in Figure 4) for direct monitoring and control. Use the function buttons (Component 3 in Figure 4) to navigate through menus and adjust settings.

For remote monitoring, utilize the built-in WiFi/GPRS function. This allows you to track the real-time operational status of your inverter via a dedicated smartphone application, providing 'Friendly Man-machine Integration'.

5.3 Energy Flow Management

The inverter intelligently manages energy flow between solar panels, batteries, loads, and the grid. It prioritizes self-consumption of solar energy, stores excess energy in batteries, and can draw from or feed into the grid as needed. The 6 configurable time periods for battery charging/discharging allow for optimized energy usage based on your preferences or electricity tariffs.

6. Maintenance

To ensure the longevity and optimal performance of your Deye Hybrid Inverter, regular maintenance is recommended:

• Regular Cleaning: Keep the inverter's exterior clean and free from dust and debris. Ensure ventilation openings are not obstructed.
• Connection Checks: Periodically inspect all electrical connections (PV, battery, grid, load) to ensure they are tight and free from corrosion.
• Environmental Conditions: Ensure the inverter is operating within its specified ambient temperature range (refer to specifications). Avoid direct sunlight exposure and ensure adequate airflow.
• Firmware Updates: Check for and apply any available firmware updates to ensure your inverter has the latest features and bug fixes. This can often be done via the monitoring app.
• Battery Health: If using lead-acid batteries, regularly check electrolyte levels and terminal conditions as per battery manufacturer guidelines. For lithium batteries, monitor their state of charge and health via the inverter's display or app.

7. Troubleshooting

This section provides general guidance for common issues. For detailed troubleshooting, refer to the comprehensive manual provided by the manufacturer or contact technical support.

• Inverter Not Powering On:
  • Check the ON/OFF switch (Component 12) is in the 'ON' position.
  • Verify DC input from PV panels and battery connections.
  • Ensure AC input from the grid is present if operating in grid-tied mode.
• No Power Output to Loads:
  • Check load connections and ensure they are properly wired to the inverter's load output.
  • Verify battery state of charge. If too low, the inverter may not supply power.
  • Check for any error codes on the LCD display.
• Low Solar Production:
  • Ensure PV panels are clean and free from shading.
  • Check PV string connections and voltage levels.
  • Verify MPPT settings are correctly configured.
• Communication Issues (RS485/CAN/WiFi):
  • Ensure communication cables are securely connected.
  • For WiFi, check network connectivity and router settings.
  • Restart the inverter and communication module.

Always disconnect power sources before attempting any physical inspection or repair.

8. Specifications

The following table outlines the technical specifications for the Deye SUN-3K-SG04LP1 Hybrid Inverter. Note that some specifications may vary slightly between the 24V and 48V battery models (SUN-3K-SG04LP1-24V and SUN-5K-SG04LP1-48V are shown for comparison in the source image).

9. User Tips

• Remote Monitoring: Take advantage of the WiFi/GPRS monitoring feature to keep track of your system's performance and energy usage from anywhere. This can help you identify potential issues early and optimize your energy consumption.
• Battery Compatibility: The inverter supports both 24V and 48V battery systems, as well as both Lithium and Lead-acid battery types. Ensure your chosen battery system is compatible and correctly configured for optimal performance and safety.
• Scalability: If your energy needs grow, remember that this inverter supports parallel operation of up to 16 units, allowing for easy expansion of your solar energy system.

10. Warranty

The Deye SUN-3K-SG04LP1 Hybrid Inverter typically comes with a warranty period of 5 to 10 years. The exact warranty duration depends on the final agreement at the time of purchase. For detailed information regarding your specific warranty policy, please refer to the documentation provided with your inverter or contact your supplier.

11. Support

For technical assistance, troubleshooting, or any questions regarding your Deye Hybrid Inverter, please contact your authorized dealer or the manufacturer's support channels.

You may also reach out for direct assistance via WhatsApp: +86 15521372898