ECGSOLAX Hybrid Solar Inverter

1. Introduction

The ECGSOLAX Hybrid Solar Inverter is a versatile off-grid power solution designed for various applications. It features a pure sine wave output, a built-in 80A MPPT solar charge controller, and supports high PV input voltage up to 450VDC. This inverter is compatible with both 12V and 24V battery systems, including lithium-ion batteries with BMS communication. It offers programmable supply priority for PV, battery, or grid, intelligent fan speed adjustment, and includes protection against overload, high temperature, and short circuits. Optional Wi-Fi and GPRS modules allow for convenient monitoring via iOS and Android devices.

2. Safety Information

• Always ensure proper grounding of the inverter.
• Do not attempt to open or repair the inverter yourself. Refer servicing to qualified personnel.
• Disconnect all power sources (PV, battery, AC input) before performing any installation, wiring, or maintenance.
• Ensure adequate ventilation around the inverter to prevent overheating.
• Keep the inverter away from flammable materials, moisture, and direct sunlight.
• Only qualified personnel should perform electrical connections to avoid electric shock or damage to the equipment.
• This device is designed for indoor use unless specified otherwise.

3. Product Overview

3.1 Features

• Pure sine wave inverter output.
• Programmable supply priority for PV, battery, or utility grid.
• High PV input voltage range (55~450VDC).
• Built-in Max 80A MPPT solar charge controller.
• Compatible with lithium-ion batteries.
• Supports BMS communication with Lithium batteries.
• Smart battery charge design to optimize battery life.
• Overload, high temperature, and inverter output short circuit protection.
• Cold start function.
• Intelligent fan speed adjustment.
• Built-in anti-dusk kit for harsh environments (optional).
• WIFI & GPRS available for iOS and Android monitoring.

3.2 Components

4. Setup

4.1 Physical Installation

The inverter is designed for wall-mounting. Ensure the installation location is dry, well-ventilated, and protected from direct sunlight and extreme temperatures. Maintain adequate clearance around the unit for proper airflow.

Environmental Conditions:

• Operating Temperature: -10°C to 55°C
• Humidity: 5% to 95% Relative Humidity (Non-condensing)
• Consider using the optional anti-dusk kit for installations in harsh or dusty environments.

4.2 Wiring Diagram

Follow the diagram below for proper connection of solar modules, battery bank, utility grid, generator, and household appliances. Ensure all connections are secure and correctly polarized.

• PV Input: Connect your solar modules to the designated PV input terminals. Observe correct polarity and ensure the total open circuit voltage does not exceed 450VDC.
• Battery Connection: Connect the battery bank to the battery terminals. Ensure correct polarity (positive to positive, negative to negative) and secure connections.
• AC Input: Connect the utility grid or a generator to the AC input terminals.
• AC Output: Connect your household appliances or load center to the AC output terminals.

5. Operating Instructions

5.1 Powering On/Off

To power on the inverter, ensure all connections are correct, then switch on the battery breaker, followed by the PV breaker (if applicable), and finally the AC input breaker. The inverter will initiate its startup sequence. To power off, reverse the sequence: AC input, then PV, then battery.

5.2 Display and Controls

The front panel features an LCD display and control buttons for monitoring system status, adjusting settings, and viewing operational data. Refer to the detailed display menu in the full manual for specific navigation and parameter adjustments.

5.3 Setting Supply Priority

The inverter allows you to program the energy source priority (PV, battery, or grid) based on your energy management strategy. This can be configured via the LCD display or the monitoring software.

5.4 Remote Monitoring

With the optional WIFI or GPRS module, you can monitor your inverter's performance and status remotely using a dedicated app on your iOS or Android device. Follow the instructions provided with the WIFI/GPRS module for setup.

5.5 Load Compatibility

The inverter is compatible with a wide range of daily appliances. However, it is crucial to consider the starting impulse current of certain loads to prevent overloading the inverter.

Note: Different types of loads have different starting impulse currents. The following values are for reference ONLY! Customers need to select the appropriate inverter model according to the actual equipment power, current, and load characteristics.

Load Type Selection Guide:

6. Maintenance

• Regular Cleaning: Periodically clean the inverter's exterior and ventilation openings to prevent dust buildup, which can hinder cooling. Use a soft, dry cloth.
• Check Connections: Annually inspect all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion. Loose connections can lead to overheating and poor performance.
• Battery Maintenance: Follow the manufacturer's guidelines for your specific battery type (e.g., lead-acid, lithium-ion) regarding charging, discharging, and periodic checks.
• Environmental Check: Ensure the installation environment remains within the specified temperature and humidity ranges.

7. Troubleshooting

7.1 Common Issues

• Inverter not turning on:
  • Check battery connections and ensure the battery voltage is within the operating range.
  • Verify all input breakers (battery, PV, AC) are in the ON position.
• No AC output power:
  • Check for overload conditions; reduce connected loads.
  • Inspect for short circuits in the AC output wiring.
  • Verify battery voltage is sufficient.
  • Check if the inverter is displaying any error codes.
• Overload or High Temperature warnings:
  • Reduce the total load connected to the inverter.
  • Ensure proper ventilation around the inverter; clear any obstructions from cooling vents.
  • Check ambient temperature to ensure it's within the operating range.
• WIFI connectivity issues:
  • Ensure the WIFI module is correctly installed and securely connected to the inverter.
  • Verify the WIFI module is powered on and its indicator lights are functioning as expected.
  • Check your router and network settings.
  • Confirm the monitoring app on your iOS or Android device is correctly configured and updated.

7.2 Error Codes

If the inverter displays an error code on its LCD screen, consult the detailed error code list in the complete product manual for specific diagnostic steps. If the issue persists, contact customer support.

8. Specifications

Detailed specifications for the ECGSOLAX Hybrid Solar Inverter models SP-2200 and SP-3200 are provided below:

9. User Tips

• Load Selection: Always consider the starting impulse current of your appliances. Resistive loads (e.g., heaters) have a lower impact, while inductive loads (e.g., motors, refrigerators) can draw significantly higher current at startup. Select an inverter model with sufficient surge power capacity for your intended loads.
• Battery Operation: While the inverter can function by drawing power directly from PV or the grid, a battery bank is essential for energy storage, providing power during outages, or for off-grid applications. The inverter can operate without a battery if configured for grid-tie or direct PV-to-load operation, but this limits its hybrid capabilities.
• Voltage Compatibility: The SP-2200 model is designed for 12V battery systems, and the SP-3200 model for 24V battery systems. Ensure you select the correct inverter model that matches your battery bank's nominal voltage to prevent damage and ensure optimal performance.
• WIFI Setup: If you encounter issues with WIFI connectivity, double-check that the WIFI module is correctly installed and securely connected. Ensure your monitoring app is up-to-date and configured according to the separate WIFI module instructions. Verify your home network is functioning correctly and the inverter is within range.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your point of purchase or the ECGSOLAX customer service department. Provide your product model (SP-2200 or SP-3200 Series) and serial number for efficient assistance.