Tewaycell All-in-One Home Solar System User Manual

1. Safety Information

Please read all safety instructions carefully before installation, operation, or maintenance of the Tewaycell All-in-One Home Solar System. Failure to follow these instructions may result in electric shock, fire, serious injury, or death.

1.1 General Warnings

• Warning: This product contains Lithium carbonate, a chemical known to the State of California to cause developmental toxicity. For more information go to www.P65Warnings.ca.gov
• KEEP OUT OF REACH OF CHILDREN. In case of ingestion, seek medical attention immediately.
• Always ensure proper ventilation around the unit.
• Do not operate the system if any part is damaged.

1.2 Precautions

• No matter what the charging model is, once the temperature of the cell is above the absolute charging temperature, charging should be stopped.
• Please check the orientation of the positive and negative terminals before packaging or connecting.
• Connect the terminal or wire to the battery module, and pay attention to insulation to prevent short circuit.
• When not in use for a long time, the battery should be stored in a cool and dry place (<35°C, 30%~50% SOC, charge and discharge once every 3 months).
• Do not place the battery in direct sunlight or a heat source.
• Do not wear metal jewelry (such as rings, watches, accessories, etc.) when handling the battery unit.

1.3 Prohibited Actions

• Do not charge beyond the maximum charging rate.
• Do not disassemble or modify the battery.
• Do not throw or hit the battery.
• Do not pierce the battery with sharp objects (such as nails, knives, pens, electric drills).
• Do not mix with other types of batteries or modular units.
• Do not excessively squeeze the battery during use.
• Do not place the battery in a high temperature greater than 60°C.
• Do not use conductive materials to connect the positive and negative terminals (such as metals, wires).

2. Product Overview

The Tewaycell All-in-One Home Solar System is an integrated energy storage solution designed for household use. It combines a LiFePO4 battery, a three-phase inverter, and a Battery Management System (BMS) into a single unit, offering efficient and reliable power management.

2.1 Key Features

• Built-in 10KW/12KW Three-Phase Inverter
• Utilizes Grade A LiFePO4 cells
• Integrated 300A BMS for optimal battery performance and safety
• Provides 3-phase output
• Long cycle life of 6000+ cycles (0.2C 80%) and 8000+ cycles (0.2C 70%)
• Available in 15KWh, 20KWh, and 30KWh capacities

2.2 System Components

The system features an intuitive control panel and various connection ports for seamless integration into your home energy setup.

Image: Labeled components of the Tewaycell All-in-One system, including Inverter Display, Battery Display, Battery Connector, PV Connector, AC Connector, Air Switch, and Communication Interface.

Image: Front view of the Tewaycell All-in-One Solar System, showing the control panel and displays for battery and inverter status.

2.3 Application Diagram

Image: Application diagram illustrating how the Tewaycell All-in-One 20KWh system integrates with solar panels (DC input), a generator (AC input), and the utility grid (AC input) to provide power to various household appliances.

3. Package Contents

Upon opening the outer package, please check if the deliverable is complete and whether there is any visible external damage. If any items are missing or damaged, please contact us immediately.

Image: Table detailing the contents of the product package, including the All-in-one machine, wiring rings, AC plugs, photovoltaic connectors, and tools for solar panel connectors.

4. Setup

4.1 Physical Placement

Place the Tewaycell All-in-One Home Solar System in a cool, dry, and well-ventilated area. Avoid direct sunlight and heat sources. Ensure the unit is stable and on a level surface.

4.2 Electrical Connections

Carefully follow the wiring diagrams for connecting your solar panels (PV), AC input, and AC output to your home's electrical system. Ensure all connections are secure and properly insulated.

Image: Connection diagram for Three-Phase 15KWh AO-ESS Output, illustrating the wiring for L1, L2, L3, and N lines, and the output voltage range of 200-240Vac (230Vac default).

Notice: Users can change the output phase mode and output voltage by setup menu. Please read the chapter 6.1.2 Setting. The output voltage corresponds to item [38] of the parameter setting, and the output phase voltage can be set within the range of 200V to 240V.

4.3 Communication Interface Setup

The system includes various communication ports for monitoring and control.

Image: Overview of the Battery Communication Interface, showing labeled ports including RS485-1, USB-B, CAN/RS485-2, Dry contact, LED Indicator, RST, ADS, DCT, and RS232.

RS485-1 Port

The RS485-1 port is used to connect to the Wi-Fi/GPRS data acquisition module, which allows the user to view the operating status and parameters of the inverter via a mobile phone APP.

Image: Inverter Communication Interface details for the RS485-1 port, including pin definitions (Pin 1: 5V, Pin 2: GND, Pin 7: RS485-A, Pin 8: RS485-B) and QR codes for downloading the mobile app from the App Store and Google Play.

Notice: The Wi-Fi/GPRS data acquisition module needs to be purchased separately. User can scan the QR code to download the mobile APP.

USB-B Port

Image: USB-B Port diagram showing connection to a laptop. Users can use host computer software to read and modify device parameters through this port. The installation package for the host computer software can be downloaded from the official website of SRNE or by contacting support.

5. Operation

5.1 Display and Controls

The system features an Inverter Display and a Battery Display to monitor operational status and parameters. Use the UP, SET, DOWN, and ENT buttons on the control panel to navigate menus and adjust settings.

5.2 Time-Slot Functions

The system supports time-slot based utility charging/carrying and battery discharging functions to optimize energy usage based on electricity tariffs.

Image: Graph illustrating Peak-Valley Electricity Tariff and diagrams for Time-slot Utility Charging/Carrying Function and Time-slot Battery Discharging Function. Before using this function, set the local time in parameter items 54, 55. Users can set up to 3 definable periods for both functions.

• Time-slot Utility Charging/Carrying Function: With 3 definable periods, the user can freely set the mains charging/carrying time within the range of 00:00 to 23:59. During the time period set by the user, if PV energy is available, PV energy will be used first, and if PV energy is not available or insufficient, utility energy will be used as a supplement.
• Time-slot Battery Discharging Function: With 3 definable periods, the user can freely set the battery discharge time within the range of 00:00 to 23:59. During the time period set by the user, the inverter will give priority to the battery inverter to carry the load, and if the battery power is insufficient, the inverter will automatically switch to mains power to ensure stable operation of the load.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your Tewaycell Home Solar System.

• Periodically inspect all electrical connections for tightness and signs of wear or corrosion.
• Ensure the area around the unit remains clean and free of obstructions to maintain proper ventilation.
• If storing the battery for an extended period, ensure it is in a cool, dry place (<35°C) with 30%~50% State of Charge (SOC), and perform a charge and discharge cycle every 3 months.
• Do not attempt to service internal components unless you are a qualified technician.

7. Troubleshooting

This section provides general guidance for common issues. For complex problems, please contact customer support.

• System Not Powering On: Check all power connections, ensure the main AC input is active, and verify the battery charge level.
• No Output Power: Check AC output connections, ensure the inverter is enabled, and verify the load is within the system's rated capacity.
• Communication Issues: Ensure communication cables are securely connected. If using a Wi-Fi module, verify its connection and app settings.
• Unusual Noises or Smells: Immediately power down the system and contact customer support. Do not attempt to diagnose or fix the issue yourself.

8. Specifications

Note: Specific dimensions and weights vary by capacity model. Refer to the table below for details.

Image: Table showing detailed dimensions (Length, Width, Height) and Weight for the 15KWh, 20KWh, and 30KWh models of the Tewaycell All-in-One Energy Storage System.

9. User Tips

• Wi-Fi Module: Note that the Wi-Fi module for remote monitoring via the mobile app is typically sold separately. Ensure you acquire one if remote access is desired.
• App Availability: The mobile application for monitoring may have regional availability restrictions. Check your local app store for compatibility.
• Manuals: Always refer to the comprehensive product manual (included in the package) for detailed instructions, especially for advanced settings and specific wiring diagrams.

10. Warranty and Support

The Tewaycell All-in-One Home Solar System comes with a 10-year warranty.

For technical support, warranty claims, or any questions not covered in this manual, please contact Tewaycell customer service or your authorized dealer.

11. Manufacturing and Testing Process

Watch this video to see the manufacturing and rigorous testing procedures that ensure the quality and reliability of your Tewaycell Home Solar System.

Video: A look into the Tewaycell factory, showcasing the assembly, testing, and quality control processes for the solar energy storage systems.