DATOUBOSS 11KW Hybrid Solar Inverter

1. Introduction

This user manual provides detailed instructions for the installation, operation, and maintenance of the DATOUBOSS 11KW Hybrid Solar Inverter. This inverter is designed to efficiently convert DC power from solar panels and batteries into AC power for various household and office appliances. It supports both on-grid and off-grid applications, parallel operation, and battery-less functionality.

Please read this manual thoroughly before installation and operation to ensure proper use and to prevent damage to the unit or connected equipment.

2. Safety Instructions

Adhering to safety precautions is crucial during the installation and operation of the hybrid solar inverter. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Ensure all power sources (PV array, battery, utility grid) are disconnected before performing any wiring or maintenance.
• Only qualified personnel should install and service this inverter.
• Do not disassemble the inverter. There are no user-serviceable parts inside.
• Install the inverter in a well-ventilated area, away from flammable materials and direct sunlight.
• Ensure proper grounding of the inverter.
• Wear appropriate personal protective equipment (PPE), including insulated gloves and safety glasses, during installation.
• Keep children and unauthorized persons away from the inverter.

3. Product Overview

The DATOUBOSS 11KW Hybrid Solar Inverter is a versatile power solution integrating a solar charge controller, inverter, and battery charger into one compact unit. It is designed to provide uninterrupted power supply.

3.1 Key Features

• 11KW Pure Sine Wave Output: Provides stable and clean power suitable for sensitive electronics.
• Integrated 150A MPPT Solar Charge Controller: Maximizes power harvest from solar panels.
• Parallel Operation Support: Up to 9 units can be connected in parallel for increased capacity.
• Grid Integration Capability: Supports feeding excess solar power back into the public grid (user responsible for grid connection procedures).
• Battery-less Operation: Can power loads directly from PV or utility grid without a battery (note: parallel operation requires batteries).
• Dual MPPT Inputs: Allows for two independent PV array inputs for optimized solar energy utilization.
• Multiple Charging and Output Modes: Offers flexibility for various application requirements.
• Comprehensive Protection: Includes short-circuit, overcurrent, overvoltage, undervoltage, overload, backfill, and overtemperature protection.

3.2 Product Components and Interface

Familiarize yourself with the inverter's external components and connection points.

Figure 3.2.1: Front view of the DATOUBOSS 11KW Hybrid Solar Inverter.

Figure 3.2.2: Detailed view of the inverter's display, function buttons, and connection ports. Key components include the LCD display, status indicators, function buttons, AC input, main output, second output, BMS/RS485 communication port, RS232 communication port, solar module input, parallel connection port, battery input, and ON/OFF switch.

4. Installation

Proper installation is critical for the inverter's performance and safety. Follow these guidelines carefully.

4.1 Site Selection and Mounting

• Mount the inverter vertically on a solid surface capable of supporting its weight (approx. 19.19 kg).
• Ensure adequate clearance around the inverter for proper airflow and heat dissipation. Maintain at least 20 cm clearance on all sides.
• Avoid locations with high humidity, dust, corrosive gases, or direct exposure to water.
• Operating temperature range: 0°C to 55°C.

4.2 Wiring Connections

All wiring must comply with local electrical codes and regulations. Use appropriate cable gauges for all connections.

Figure 4.2.1: Comprehensive wiring diagram showing connections for PV modules, battery bank, utility grid, and AC loads. Recommended cable sizes and breaker ratings are indicated.

• Battery Connection: Connect the 48V battery bank to the battery input terminals. Ensure correct polarity. Recommended cable: 2 AWG (25mm²). Recommended fuse: 150A.
• PV Array Connection: Connect solar panels to the dual MPPT inputs (PV1 and PV2). Max PV array open circuit voltage: 500V DC. MPPT voltage range: 90-500V DC. Recommended cable: 10 AWG (6mm²).
• AC Input (Utility/Generator): Connect the utility grid or a generator to the AC input. Rated input voltage: 220/230/240V AC. Max charge current: 160A. Recommended cable: 10 AWG (6mm²). Recommended breaker: 63A.
• AC Output (Load): Connect your household or office loads to the AC output terminals. Output voltage: 220/230/240V AC ±5%. Rated output power: 11000W. Recommended cable: 10 AWG (6mm²). Recommended breaker: 63A.
• Parallel Connection: For parallel operation, connect up to 9 inverters using the dedicated parallel communication ports. Refer to Figure 4.2.2 for examples.

Figure 4.2.2: Examples of parallel connection for single-phase systems and three-phase electrical input/output wiring. A minimum of three inverters is required for three-phase operation.

5. Operation

This section details the operational aspects of your DATOUBOSS Hybrid Solar Inverter.

5.1 LCD Display and Function Buttons

The LCD display provides real-time system status and allows for configuration of various settings. The function buttons (ESC, UP, DOWN, ENTER) are used to navigate menus and adjust parameters.

Figure 5.1.1: Close-up of the inverter's LCD display, showing input/output status, battery level, and power flow.

5.2 Operating Modes

The inverter offers flexible charging and output modes to suit different energy management needs.

Figure 5.2.1: Illustration of the four charging modes (Solar Priority, Solar Only, Utility Priority, Solar Hybrid & Utility) and three output modes (Solar Priority (SUB), Utility Priority (USB), Battery Priority (SBU)).

• Charging Modes:
  • Solar Priority: Solar energy is prioritized for charging the battery. If solar is insufficient, utility power is used.
  • Solar Only: Only solar energy is used to charge the battery.
  • Utility Priority: Utility power is prioritized for charging the battery. Solar energy is used if utility is unavailable.
  • Solar Hybrid & Utility: Both solar and utility power can charge the battery simultaneously.
• Output Modes:
  • Solar Priority (SUB): Loads are primarily powered by solar, then battery, then utility.
  • Utility Priority (USB): Loads are primarily powered by utility, then solar, then battery.
  • Battery Priority (SBU): Loads are primarily powered by battery, then solar, then utility.

5.3 Battery-less Operation

The inverter supports operation without a connected battery, powering loads directly from PV generation or the utility grid. This feature is ideal for grid-tied systems where battery backup is not required.

Important Note: When multiple inverters are connected in parallel, a battery must be connected, and the battery-less operation function cannot be utilized.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your inverter.

• Cleaning: Periodically clean the inverter's exterior with a dry cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners.
• Connections Check: Annually inspect all wiring connections for tightness and signs of corrosion. Re-tighten if necessary.
• Environmental Check: Ensure the installation environment remains within specified temperature and humidity ranges.
• Firmware Updates: Check the manufacturer's website for any available firmware updates. Follow instructions carefully if performing an update.

7. Troubleshooting

This section provides solutions for common issues you might encounter.

For issues not listed here or if problems persist, please contact DATOUBOSS customer support.

8. Specifications

Detailed technical specifications for the DATOUBOSS 11KW Hybrid Solar Inverter.

9. Warranty and Support

DATOUBOSS provides a 24-month warranty for this product, covering manufacturing defects and malfunctions under normal use conditions.

• Warranty Period: 24 months from the date of purchase.
• Return Policy: 30 days unconditional return guarantee.
• Customer Support: For technical assistance, warranty claims, or any inquiries, please contact DATOUBOSS customer support through the retailer's platform or the official DATOUBOSS website.

Please retain your proof of purchase for warranty validation.