1. Product Overview
The DEMUDA DFHY-1.5KW Hybrid Solar Inverter is an all-in-one solution designed for efficient energy management in home solar power systems. It features seamless on/off-grid switching, a built-in MPPT controller, and supports both solar and electricity power supply. This inverter is capable of battery-free operation and offers remote monitoring capabilities.
Key Features:
- Built-in MPPT controller (60A) for maximum power point tracking.
- Stable voltage and frequency output.
- Multiple protection mechanisms for safe operation.
- Intelligent charging modes.
- Pure sine wave output suitable for sensitive electronics.
- Supports battery-free operation.
- WiFi monitoring for remote access (optional).
- Lightweight design.
- Integrated UPS functionality.
2. Setup and Installation
Before installation, ensure the inverter is placed in a well-ventilated area, away from direct sunlight, heat sources, and moisture. Always disconnect all power sources before making any connections.
2.1 Rear Panel Connections
The rear panel of the inverter provides all necessary connection points. Refer to the diagram below for identification of each port.
- Power On/Off Switch: Controls the main power to the inverter.
- AC Input: Connects to the utility grid or an AC generator.
- AC Output: Connects to household appliances or the load.
- PV Input: Connects to the solar panel array.
- Battery Input: Connects to the battery bank (Lead Acid or Lithium).
- Grounding: Essential for safety; connect to an earth ground.
- Upgrading port USB TypeA: For firmware updates or data transfer.
- BMS Communication Port (RS 485): For communication with compatible Battery Management Systems.
2.2 Wiring Diagram
The following diagram illustrates a typical wiring setup for the hybrid solar inverter, integrating solar panels, AC input (grid/generator), and battery storage to power household appliances.
2.3 Parallel Function (Optional)
For increased power output, multiple inverters can be connected in parallel. This feature allows for doubled performance and enhanced system capacity. Consult the manufacturer for detailed instructions on parallel installation.
3. Operating Instructions
3.1 Powering On/Off
- Ensure all connections are secure and correctly wired according to the setup instructions.
- Flip the Power On/Off Switch on the rear panel to the 'ON' position.
- The LCD display on the front panel will illuminate, showing real-time operating status and data.
- To power off, flip the Power On/Off Switch to the 'OFF' position.
3.2 LCD Display
The digital LCD display provides real-time information about the inverter's operation, including input/output voltage, current, frequency, battery status, and charging mode. Monitor this display for system performance and any alerts.
3.3 APP Remote Monitoring (Optional)
The inverter supports remote monitoring via a smartphone application using WIFI/GPRS functions. This allows users to check the real-time operating status, query fault notifications, and manage settings from anywhere. Refer to the separate app manual for installation and usage details.
3.4 Charging Modes
The inverter offers various charging modes (Two-state, Three-state, Auto Settable) for optimal battery management. These modes typically include Constant Current (CC), Constant Voltage (CV), and Float charging. The default charging current for PV and Line mode is 40A, but it is settable within a range of 2-60A.
4. Maintenance
Regular maintenance ensures the longevity and optimal performance of your DEMUDA Hybrid Solar Inverter.
- Cleaning: Keep the inverter's exterior clean and free from dust. Ensure ventilation openings are not obstructed.
- Connection Checks: Periodically inspect all wiring connections (PV, AC, Battery, Grounding) to ensure they are tight and free from corrosion.
- Environmental Conditions: Ensure the inverter is operating within its specified temperature and humidity ranges.
- Firmware Updates: Check for available firmware updates via the USB port or remote monitoring app to ensure the inverter has the latest features and bug fixes.
5. Troubleshooting
If the inverter is not functioning as expected, perform the following basic checks:
- No Power: Verify that the Power On/Off Switch is in the 'ON' position and all power cables are securely connected. Check the main circuit breaker.
- No Output: Ensure the AC output connections are secure and that the load is not exceeding the inverter's capacity.
- Error Codes: If an error code is displayed on the LCD, consult the full technical manual or contact customer support with the specific code for assistance.
- Battery Issues: Check battery connections and ensure the battery voltage is within the operational range.
- Solar Input Issues: Verify solar panel connections and ensure sufficient sunlight is available.
For complex issues, it is recommended to contact qualified technical personnel or DEMUDA customer support.
6. Specifications
The DEMUDA DFHY-1.5KW Hybrid Solar Inverter is designed with precision and quality components, including imported MOS tubes, ensuring stable performance.
6.1 General Specifications
| Attribute | Value |
|---|---|
| Brand Name | DEMUDA |
| Model Number | DFHY |
| Type | DC/AC Inverters, Solar Hybrid Inverter |
| Output Type | Single Phase, MPPT PURE SINE WAVE |
| Display | LCD display |
| Output Waveform | Pure sine wave |
| Efficiency | >99.5% |
| Application | Home solar energy power system |
| Origin | Mainland China (Guangdong, China) |
| Battery Included | No |
| High-concerned chemical | None |
6.2 Battery Information
| Item | Value | Comments |
|---|---|---|
| Battery pieces | 1pcs | 12V/PCS |
| Auto restart function | Yes | |
| Battery test function | No | |
| Battery type | VRLA/LI | Lead acid battery & Lithium batteries |
| Nominal battery voltage | N*12V | @25°C |
| Battery management | Yes | |
| DC Operating Voltage | 12v |
6.3 Charger (PV) Specifications
| Item | Value | Comments |
|---|---|---|
| PV charging method | MPPT | |
| PV maximum input power | 1000W | |
| PV maximum input current | 14A | |
| Efficiency | 99.5%max | |
| PV voltage accuracy | ±2% | |
| MPPT voltage | 20-100Vdc | |
| Default charging current | 40A | |
| Recommended PV configuration voltage | MPPT Voltage: 60-85V | Open Circuit Voltage: 70-105V |
| Max PV voltage | 125Vdc | |
| Min PV voltage | 15Vdc | |
| PV start-up voltage | 20Vdc | |
| Max (AC+Solar) charge current | 120A |
6.4 Charger (Line Mode) Specifications
| Item | Value | Comments |
|---|---|---|
| Battery over voltage | 15V | |
| Battery under voltage | 10.5V*N | Settable: 10*N~11*N |
| Battery low voltage alarm | 10.8V*N | Settable: 10.3*N~11.3*N |
| Over current protection | Fuse | Fast acting |
| Charging voltage | FV MODE: 13.5V | Settable: 12-14.9V |
| CV MODE: 14.1V | Settable: 12-15V | |
| Temperature compensation | No | |
| Charging current | 2~60A | Settable |
| Default charging current | 40A | |
| Charging mode | Two/Three/Auto Settable | Three states: CC/CV/Float, Two states: CC/Float |
6.5 Output Specifications
| Attribute | Value |
|---|---|
| Output Voltage | 220V / 230V / 240V |
| Output Current | 60A |
| Output Frequency | 50Hz/60Hz |
7. Warranty and Support
DEMUDA is committed to providing high-quality products and customer satisfaction. Our products undergo rigorous quality control and are backed by various international certifications.
Certifications: CE, ISO, ROHS, FCC, TUV, VDE, PSE
7.1 Customer Support
For any technical assistance, warranty claims, or product inquiries, please contact DEMUDA customer service using the information below:
- WhatsApp: +86 15232153826 (Tony Liu)
- Tel: +86 15232153826
- Email: 986504293@qq.com
8. User Tips
- Product Selection: If you are unsure which solar energy product best suits your needs, it is recommended to consult with DEMUDA directly. Provide details about your specific requirements, and their team can recommend a suitable solution.
- Remote Monitoring: Utilize the optional WiFi/GPRS remote monitoring feature to keep track of your inverter's performance and receive timely notifications, ensuring optimal system health and efficiency.
- Parallel Function: If your energy demands grow, consider the parallel function to expand your system's capacity without replacing your existing inverter.