Hoymiles MS-A2 Solar Battery and HMS-1600-4T Inverter Set User Manual

1. Introduction and Product Overview

The Hoymiles MS-A2 Solar Battery and HMS-1600-4T Inverter Set is an AC-coupled balcony energy storage system designed for compatibility with micro-inverters. This system allows for the storage of excess solar energy, providing a reliable power supply for your home.

The integrated battery has a capacity of up to 2,240 Wh and can be expanded by connecting two devices in series. Its plug-and-play design offers flexibility for installation in various locations such as balconies, rooftops, or terraces.

The MS-A2 system features real-time monitoring and control via a dedicated mobile application, ensuring efficient energy management. It is powered by LiFePo4 (LFP) batteries, complying with IEC 62619 standards for safety and reliability, and offers over 6000 charge cycles for extended durability.

Figure 1.1: The Hoymiles MS-A2 Solar Battery, HMS-1600-4T Inverter, and included 5m AC cable.

2. What's in the Box

Upon unpacking, please verify that all components listed below are present and undamaged:

• 1x Hoymiles MS-A2 Solar Battery (2.240 Wh)
• 1x Hoymiles HMS-1600-4T Inverter (1600 W)
• 1x 5-meter AC Connection Cable
• Mounting Material
• Instruction Manual (this document)

3. Setup and Installation

The Hoymiles MS-A2 system is designed for straightforward, plug-and-play installation. It is recommended to consult a qualified electrician for grid connection and to ensure compliance with local electrical codes.

3.1 Component Identification

Figure 3.1: Front panel of the MS-A2 Solar Battery, showing power button, settings, and battery indicator lights.

Figure 3.2: Side view of the MS-A2 Solar Battery, highlighting ventilation and connection interfaces.

Figure 3.3: The HMS-1600-4T Inverter, showing its various connection points for solar panels and AC output.

3.2 Connection Steps

1. Mounting: Securely mount the HMS-1600-4T Inverter in a suitable location, typically near the solar panels. Ensure adequate ventilation and protection from direct sunlight and extreme weather conditions.
2. Solar Panel Connection: Connect your solar panels to the input ports of the HMS-1600-4T Inverter. Ensure correct polarity and secure connections.
3. Battery Connection: Connect the Hoymiles MS-A2 Solar Battery to the designated input on the HMS-1600-4T Inverter. Refer to the specific port labels for accurate connection.
4. AC Grid Connection: Use the provided 5-meter AC cable to connect the HMS-1600-4T Inverter to a standard AC outlet. This connection facilitates both power export to the grid and battery charging.
5. Power On: Once all connections are secure, power on the MS-A2 Solar Battery using the power button on its front panel.

Figure 3.4: Schematic representation of the system's electrical connections, from solar panels to the home grid.

Figure 3.5: An example of the Hoymiles system installed outdoors, demonstrating its compact design for balcony or terrace use.

4. Operating Instructions

The Hoymiles MS-A2 system is designed for automated operation, managing solar energy capture, storage, and distribution. Real-time monitoring and control are available through a dedicated mobile application.

4.1 Initial Power-Up

• After completing all physical connections, press the power button on the MS-A2 battery unit.
• Observe the indicator lights on the battery unit. These lights provide information on battery charge level, Wi-Fi status, and operational status.

4.2 Mobile Application Control

Download the official Hoymiles mobile application from your device's app store. The app allows you to:

• Monitor real-time energy generation and consumption.
• View battery charge status and historical data.
• Adjust system settings and operational modes (if applicable).
• Receive alerts and notifications regarding system performance.

The system features integrated Wi-Fi and Bluetooth connectivity for seamless communication with the mobile application.

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your Hoymiles solar energy storage system.

5.1 General Care

• Keep the battery and inverter units clean and free from dust and debris. Use a soft, dry cloth for cleaning.
• Ensure that ventilation openings on both units are not obstructed to prevent overheating.
• Periodically inspect all cables and connections for any signs of wear, damage, or loose fittings.

5.2 Battery Longevity

The MS-A2 uses LiFePo4 (LFP) batteries, known for their durability and safety. The battery is designed for over 6000 charge cycles, providing a long operational lifespan. To maximize battery life:

• Avoid exposing the battery unit to extreme temperatures.
• Ensure the system operates within its specified environmental conditions.

6. Troubleshooting

This section provides basic troubleshooting steps for common issues. For more complex problems, please contact customer support.

• No Power Output:
  • Check if the MS-A2 battery is powered on and has sufficient charge.
  • Verify all AC and DC connections are secure.
  • Ensure the inverter is receiving power from the solar panels (check solar conditions).
• App Connectivity Issues:
  • Ensure your mobile device's Bluetooth or Wi-Fi is enabled.
  • Check if the MS-A2 battery's Wi-Fi indicator light is active.
  • Restart the mobile application and, if necessary, the MS-A2 battery unit.
• Unusual Noises or Smells:
  • Immediately disconnect the system from all power sources.
  • Contact customer support for assistance. Do not attempt to repair the unit yourself.

7. Specifications

8. Warranty and Support

For warranty information, please refer to the documentation provided with your purchase or visit the official Hoymiles website. In case of technical issues or questions not covered in this manual, please contact Hoymiles customer support.

Contact Information: Please refer to the official Hoymiles website or your purchase receipt for the most up-to-date customer support contact details.