1. Introduction
This document provides instructions for the ECGSOLAX 3.6KW Hybrid Solar Inverter, a multi-function inverter/charger designed to provide uninterruptible power support. It integrates an inverter, a solar charger, and a battery charger into a portable unit. The comprehensive LCD display allows users to configure various settings such as battery charging current, AC/solar charger priority, and acceptable input voltage to suit different applications.

2. Features
- Pure sine wave inverter output.
- Dual AC inputs and dual AC outputs for flexible power management.
- Configurable input voltage range for home appliances and personal computers via LCD settings.
- Configurable battery charging current based on application requirements via LCD settings.
- Configurable AC/Solar Charger priority via LCD settings.
- Compatible with both mains voltage and generator power sources.
- Automatic restart function upon AC recovery.
- Comprehensive protection features: Overload, Over temperature, Short circuit, Over Charge, Over Voltage, Under Voltage, and Backfill Protection.
- Smart battery charger design for optimized battery performance and longevity.
- Cold start function for reliable operation in various conditions.
- Optional WiFi module for remote monitoring via a dedicated application.


3. Safety Information
WARNING: Please read and understand all instructions and warnings before installing, operating, or servicing this inverter. Failure to follow these instructions may result in electric shock, fire, severe injury, or death.
- Installation and wiring must be performed by qualified personnel in accordance with all applicable electrical codes and standards.
- Ensure the inverter is properly grounded.
- Do not expose the inverter to rain, snow, spray, or any liquids.
- Do not disassemble the inverter. There are no user-serviceable parts inside. Refer servicing to qualified personnel.
- Ensure proper ventilation around the inverter to prevent overheating.
- Always disconnect all power sources (AC input, PV input, and battery) before performing any maintenance or wiring.
- Use appropriate personal protective equipment (PPE) when working with electrical systems.
4. Package Contents
The package typically includes:
- ECGSOLAX 3.6KW Hybrid Solar Inverter unit
- User Manual (this document)
- Standard accessories (e.g., communication cables, mounting hardware)
5. Product Overview
The inverter features a user-friendly interface and clearly labeled ports for easy connection and monitoring.

6. Installation and Setup
Proper installation is crucial for the safe and efficient operation of the hybrid solar inverter. Refer to the following diagrams and guidelines.
6.1 System Connection

6.2 Wiring and Technical Specifications

6.3 Battery Connection
The inverter supports various 24V battery types, including GEL, FLD, Li-ion, USE, AGM, and SLD. For Lithium Battery BMS communication, the Battery BMS must be PylonTech.


6.4 Solar Panel Specifications and Selection
When selecting PV modules, consider the following parameters:
- Max. PV Array Open Circuit Voltage: 500VDC
- PV Array MPPT Voltage Range: 60-450VDC
- Open Circuit Voltage (Voc) of PV modules should be higher than 60V.
- When operating without batteries, the starting voltage of the PV input should be at least 120V.
- Max. PV input current: 18A
- Max. PV charge current: 120A
- PV Wire Size: 12AWG
- Battery Wire Size: 2AWG

7. Operation
7.1 LCD Display and Settings
The LCD display allows for user-configurable settings. Refer to the inverter's display for current status and to adjust parameters such as:
- Battery charging current
- AC/solar charger priority
- Acceptable input voltage range
7.2 Dual Load Output Power
The inverter features dual AC outputs: a Main Out and a Second Out. The main output port will stop working when the battery voltage falls below a set range (e.g., 20V - 23V). In such cases, only the second output port can continue to operate, providing power to less critical loads.

7.3 Remote Monitoring (Optional)
If equipped with the optional WiFi module, the inverter can be monitored remotely via a dedicated mobile application. Follow the instructions provided with the WiFi module for setup and connection.
8. Maintenance
- Cleaning: Keep the inverter clean and free from dust. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Ventilation: Ensure that the ventilation openings are not blocked to allow for proper airflow and prevent overheating.
- Connections: Periodically check all electrical connections for tightness and signs of corrosion. Loose connections can lead to overheating and poor performance.
- Battery Health: Monitor battery voltage and performance regularly. Follow battery manufacturer guidelines for maintenance.
- Environmental Conditions: Ensure the inverter operates within its specified operating temperature range (-10°C to 55°C) and storage temperature range (-15°C to 60°C) with 5% to 95% relative humidity (non-condensing).
9. Troubleshooting
If the inverter is not functioning as expected, perform the following basic checks:
- No Power Output: Check AC input, PV input, and battery connections. Ensure all circuit breakers are on.
- Fault Indicator On: Refer to the inverter's LCD display for specific error codes or messages. Consult the full product manual (if available) for detailed explanations of fault codes.
- Overload Warning: Reduce the load connected to the inverter. Ensure the total power consumption does not exceed the inverter's rated output power.
- Over Temperature Warning: Ensure the inverter has adequate ventilation. Clear any obstructions from the cooling vents.
- Battery Not Charging: Verify PV panel connections and output. Check AC input if AC charging is enabled. Ensure battery settings are correct.
For persistent issues, contact customer support or a qualified technician.
10. Specifications
| Parameter | Value |
|---|---|
| Rated Output Power | 3.6KVA/3.6KW |
| Battery Voltage | 24VDC |
| Battery Type | Lead-acid battery and lithium battery |
| Nominal Input Voltage | 110/105/110/115/120VAC |
| Nominal Input Frequency | 50Hz/60Hz (Auto detection) |
| Efficiency | >95% (Rated R load, battery full charged) |
| Output Voltage Waveform | Pure Sine Wave |
| Floating Charging Voltage | 27VDC |
| Charging Algorithm | 3-Step |
| Max. PV Array Power | 4200W |
| Max. PV Current | 16A |
| Nominal PV Voltage | 240VDC |
| Start-up Voltage | 60VDC ± 10VDC |
| PV Array MPPT Voltage Range | 60VDC~500VDC |
| Max. PV Array Open Circuit Voltage | 500VDC |
| Max Charging Current | 120Amp |
| Safety Certification | CE |
| Operating Temperature Range | -10°C to 55°C |
| Storage temperature | -15°C ~ 60°C |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
| Dimension (D*W*H), mm | 423x334x110 |
| Net Weight, kg | 9 |


11. User Tips
- Appliance Protection: The pure sine wave output technology provides clean power, which is ideal for protecting sensitive electronics and extending their lifespan.
- Flexible Power Source: The inverter's compatibility with both mains voltage and generator power offers versatility, ensuring continuous power supply even during outages.
- Optimized Battery Performance: Utilize the configurable battery charging current settings to match your battery type and optimize its charging cycle, contributing to longer battery life.
- Remote Monitoring: If you have the WiFi module, take advantage of the remote monitoring app to keep track of your system's performance and status from anywhere.
- Application Versatility: This inverter is suitable for various applications, including RVs, home energy storage systems, camping setups, and general solar power systems.


12. Warranty and Support
For warranty information and technical support, please refer to the seller or manufacturer's official website. Keep your purchase records for any warranty claims.
The product is CE certified, indicating compliance with European health, safety, and environmental protection standards.





