Growatt MOD 8000-11000TL3-X Series Grid-Tie Inverter User Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Growatt MOD 8000-11000TL3-X series grid-tie inverter. These inverters are designed for residential and small distributed solar projects, offering high efficiency and advanced monitoring capabilities. Please read this manual thoroughly before installation and keep it for future reference.

2. Safety Information

Always observe the following safety precautions to prevent injury and damage to the equipment:

• Installation and maintenance must be performed by qualified personnel only.
• Ensure the inverter is disconnected from both DC (PV array) and AC (grid) power sources before performing any service.
• Do not touch live electrical parts.
• The inverter can become hot during operation. Avoid touching the heat sink fins.
• Ensure proper grounding of the inverter.
• Do not operate the inverter if any part is damaged or appears to be malfunctioning.
• Keep children away from the inverter.
• The inverter is rated IP65 for outdoor use, but avoid direct exposure to extreme weather conditions if possible.

3. Product Overview

The Growatt MOD 8000-11000TL3-X series inverters are advanced three-phase grid-tie inverters featuring dual Maximum Power Point Tracking (MPPT) for optimized energy harvesting from solar panels. Key features include:

• Maximum conversion efficiency up to 99% (China efficiency 98.6%).
• Maximum DC input voltage of 1100V.
• Intelligent I/V curve scanning for enhanced performance.
• One-key diagnosis and wave recording for easy troubleshooting.
• AC and DC secondary lightning protection.
• Full power module and quad-core design.
• OLED display with touch buttons for user-friendly interaction.
• DC overmatch capability of 1.5 times and AC overload capability of 1.1 times.
• IP65 protection grade and C5 corrosion protection grade.
• Optional AFCI (Arc Fault Circuit Interrupter) to prevent fire caused by arcing.
• Integrated WiFi for monitoring via APP.

4. Setup and Installation

Before installation, ensure you have all necessary components and tools. Refer to the packaging contents image for included accessories.

4.1 Mounting the Inverter

1. Choose a suitable mounting location: a cool, well-ventilated area, out of direct sunlight, and protected from heavy rain or snow. Ensure sufficient clearance around the inverter for proper airflow (refer to Figure 5).
2. Mark the drilling points on the wall using the mounting bracket as a template.
3. Drill holes and insert appropriate wall plugs.
4. Secure the mounting bracket to the wall.
5. Carefully lift the inverter and hang it onto the mounting bracket.
6. Secure the inverter to the bracket using the provided screws.

4.2 Electrical Connections

All electrical connections must comply with local and national electrical codes. Refer to Figure 6 for connector locations.

1. DC Input (PV1+, PV2+): Connect the positive and negative cables from your solar PV array to the corresponding PV+ and PV- terminals. Ensure correct polarity. The inverter supports dual MPPT, allowing for two independent strings.
2. AC Output: Connect the AC output cable from the inverter to your grid connection point. Use the waterproof PG head and OT terminal for a secure connection. The inverter is designed for 3W+N+PE (three-phase plus neutral and protective earth) connection.
3. Grounding: Ensure the inverter chassis is properly grounded.
4. Communication (COM, USB): Connect communication cables for monitoring and data logging. The inverter supports USB and RS485. Optional WiFi, GPRS, 4G, or LAN modules are available for advanced monitoring.
5. DC Switch: Ensure the integrated DC switch is in the 'OFF' position during installation.

4.3 Initial Power-Up

1. After all connections are secure and verified, switch on the AC circuit breaker to the inverter.
2. Switch the integrated DC switch on the inverter to the 'ON' position.
3. The inverter will perform a self-test and begin operation if conditions are suitable (sufficient solar irradiance, grid connection).

5. Operating Instructions

5.1 OLED Display and Touch Buttons

The inverter features an OLED display and touch buttons for local monitoring and configuration. You can view real-time data such as power output, voltage, current, and energy generated. Navigate through menus using the touch buttons.

5.2 WiFi and APP Monitoring

The Growatt inverter supports WiFi connectivity, allowing you to monitor your system remotely via a dedicated mobile application. Follow the instructions provided with your WiFi module (if purchased separately) to connect the inverter to your home network and set up the monitoring app.

5.3 Normal Operation

Once powered on and connected to the grid, the inverter will automatically start converting DC power from your solar panels into AC power for your home or the grid. The OLED display will show operational status and performance data.

6. Maintenance

Regular maintenance ensures optimal performance and longevity of your inverter.

• Visual Inspection: Periodically check the inverter for any visible damage, loose connections, or signs of corrosion.
• Cleaning: Keep the inverter's exterior clean. Use a soft, dry cloth to wipe down the casing. Ensure the cooling fins are free from dust and debris to maintain efficient heat dissipation.
• Ventilation: Ensure that the area around the inverter remains clear and well-ventilated.
• Performance Monitoring: Regularly check the inverter's performance via the OLED display or the mobile app to ensure it is operating within expected parameters.

7. Troubleshooting

If your inverter is not operating as expected, refer to the following common issues:

For complex issues or persistent faults, please contact Growatt technical support.

8. Specifications

The following tables detail the technical specifications for the Growatt MOD 8000-11000TL3-X series inverters.

General Data (All Models)

Model-Specific Data

MOD 8000TL3-X

MOD 9000TL3-X

MOD 10000TL3-X

MOD 11000TL3-X

9. User Tips

• Regularly check your inverter's performance through the mobile app to ensure optimal energy production and quickly identify any potential issues.
• Keep the inverter's cooling fins clean and free of obstructions to prevent overheating and maintain efficiency.
• Consider installing the optional AFCI module for enhanced safety against arc faults, especially in areas prone to wiring degradation or environmental stress.

10. Warranty and Support

The Growatt MOD series inverters come with a standard 5-year warranty, with an optional extension to 10 years. For technical support, warranty claims, or service inquiries, please contact Growatt's global service network. You can find contact information for various regions below:

Global Service Centers

• Headquarter Office: Sales: +86-755-27471900, info@growatt.com; Service: +86-755-27471942, service.de@growatt.com
• Germany Office: Sales: +49 97461269, jan.wu@growatt.com; Service: +49 97461269, service.de@growatt.com
• Hungary Office: Sales: +36208004000, sales@eu-solar.hu; Service: +36205044444, horvathkovaly@eu-solar.hu
• Italy Office: Sales: +393802459935, giovannimaino@growatt.it; Service: +39375609685, info@growatt.it
• India Office: Service Center: 1800 120 600 600
• Netherlands Office: Sales: chen@growatt.com; Service: +31(0)85 040 9967, service.nl@inverter.com
• UK Office: Service: +44(0)1226 630010, yi.wang@growatt.com
• Australia Office: Service Center: 1800 476 928 (1800GROWATT); Service: +61(0)2 80651298
• America Office: Sales: +1(818)800 9455, us@growatt.com
• Hongkong Office: Service: +8086 755 2951 5888, info@growatt.com
• Brazil Office: Service Hotline: 5511 26104004; Sales: william.xu@growatt.com

11. Unboxing Video

Watch this video for a visual guide on unboxing and initial handling of the Growatt inverter.