### MPPT Inverter Inverter Heating Controller

#### Technical Document

### Product Features

1. **Maximum Power Point Tracking (MPPT)**
- Automatically optimizes the power output of solar panels, ensuring the most efficient use of solar energy.
- Achieves up to 99.5% MPPT efficiency, enhancing overall system performance.

2. **Adjustable Output Voltage**
- Users can flexibly adjust the output voltage as needed to accommodate different water heater load requirements.

3. **Closed-loop Voltage Control**
- Utilizes closed-loop control technology to ensure stable output voltage, maintaining constant voltage output even with load variations.

4. **High Conversion Efficiency**
- Achieves up to 98.5% conversion efficiency, reducing energy loss and improving energy utilization.

5. **Multiple Protection Functions**
- **Low Voltage Protection**: Automatically protects the power supply and equipment when the voltage falls below the set value, preventing damage.
- **Arc Protection**: Automatically protects the power supply and equipment when arcing is detected, ensuring system safety.
- **Overheat Protection**: Automatically reduces output power or shuts off output when the temperature is too high, preventing equipment from overheating and getting damaged.

6. **Self-start Function**
- The power supply can automatically restart after a fault is cleared, ensuring continuous operation and reliability.

7. **LED and LCD Indicators**
- **LED Indicators**: Clearly display the output enable status and PV voltage status for real-time monitoring.
- **LCD Display**: Provides detailed real-time voltage, current, power, and operational status for easy monitoring and adjustment of the system.

8. **Heatsink Cooling**
- Utilizes efficient heatsink cooling design to ensure stable operation of the controller under high load and high-temperature conditions.

9. **Strong Environmental Adaptability**
- Wide operating temperature range (-25~60°C), ensuring reliable operation under various extreme environmental conditions.
- Broad storage temperature range (-40°C~+80°C), accommodating different storage conditions.
- 100% non-condensing humidity adaptability, ensuring normal operation in high-humidity environments.

10. **Robust Enclosure Design**
- IP32 protection level, dustproof and waterproof design, ensuring long-term reliable operation under various environmental conditions.

11. **Low Self-consumption**
- Self-consumption less than 0.5W, effectively saving energy and improving overall system efficiency.

### Typical Applications
- **Residential Water Heating Systems**: Utilizing solar energy to power household water heaters, achieving energy savings and environmental protection.
- **Commercial Water Heating Systems**: Suitable for hotels, gyms, and other commercial places that require large amounts of hot water.
- **Industrial Water Heating Systems**: Providing reliable hot water solutions in industrial fields, reducing energy costs.

The MPPT solar inverter heating controller, with its efficient MPPT algorithm, multiple protection functions, and stable output performance, becomes a key component in solar water heater systems, offering users an efficient and reliable solar water heating solution.

### Technical Specifications

#### Operating Temperature
- **Range**: -20~45°C
- **Protection Level**: IP32

#### Solar Charger Mode
- **Open Circuit Voltage (Voc)**: 180 Vdc
- **Max. DC Load Voltage**: 72 Vdc
- **Max. DC Load Current**: 20A
- **MPPT Efficiency**: 99%
- **Certification**: IEC-62109

### Electrical Parameters

- **Maximum Input PV Power**: 4000W
- **PV Input Current**: ≤15Adc
- **PV Input Voltage**: 120~350Vdc
- **MWS Output Voltage**: 110~340Vac (non-sine wave)
- **MWS Output Current**: 15Aac
- **MWS Efficiency**: >99%

### AC Characteristics

- **AC Heating Rating**: 4000W
- **AC Rated Voltage**: 230Vac
- **AC Working Voltage Range**: 85~250Vac
- **AC Rated Current**: 20A
- **Certification**: IEC-62109