1. Introduction
The EPEVER HP-AHP20A Series Off-Grid Hybrid Inverter is a versatile power solution designed for solar energy systems. It functions as an MPPT solar hybrid inverter, capable of operating in off-grid configurations and producing a pure sine wave output. This series supports various power ratings from 2000W to 6000W, making it suitable for a wide range of applications, including residential and commercial hybrid solar power systems.
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your EPEVER HP-AHP20A Series inverter.
2. Key Features
- Power Range: Available in 2000W to 6000W models.
- Voltage Compatibility: Supports 110/120/220/230VAC output.
- Parallel Operation: Capable of parallel output with up to 12 units (standard configuration) for single-phase or three-phase systems, and up to 16 units at most.
- Dual PV Inputs: Features dual PV inputs for improved solar utilization and higher efficiency.
- High MPPT Efficiency: Achieves a high-precision MPPT smart power tracking efficiency of over 99.5%.
- Data Recording: Stores up to 25,000 records with an adjustable interval (1-3600s).
- Battery Management: Ensures reliable lithium battery charge/discharge management with RS485 communication interface. Supports both lithium and lead-acid batteries, as well as non-battery modes.
- Flexible Charging: Supports charging from multiple types of generators and offers adjustable utility charging current.
- Pure Sine Wave Output: Provides stable and clean power for sensitive electronics.
- Advanced Control: Includes Power Factor Correction (PFC) for lower grid load.
- User Interface: Equipped with a large LCD display for better status monitoring.
- Certifications: Complies with EN/IEC/EMC/ROHS standards.
3. Setup
3.1 Unpacking and Inspection
Upon receiving your inverter, carefully unpack it and inspect for any signs of damage. Ensure all components listed in the packing list are present. If any damage or missing parts are found, contact your supplier immediately.
3.2 Mounting the Inverter
The inverter should be mounted in a well-ventilated area, away from direct sunlight, heat sources, and flammable materials. Ensure adequate clearance around the unit for proper airflow. Refer to the mechanical parameters in the specifications section for mounting dimensions and hole sizes.
- Dimensions (L × W × H): Varies by model (e.g., 629×291.4×163mm for 2000W models).
- Mounting Size (L × W): Varies by model (e.g., 592×200mm for 2000W models).
- Mounting Hole Size: Φ9/Φ10.
3.3 Electrical Connections
All electrical connections must be performed by qualified personnel in accordance with local electrical codes and regulations.
- Battery Connection: Connect the battery bank (Lithium or Lead-acid, 24VDC or 48VDC depending on model) to the inverter. Ensure correct polarity. The inverter supports reliable battery management communication via RS485.
- PV Input Connection: The inverter supports dual PV inputs. Connect your solar panel arrays to the designated PV input terminals. Ensure the input voltage and current are within the specified ranges (Max. Input Voltage 500V, MPPT Voltage Range 85-400V).
- Utility Input Connection: Connect the utility grid to the inverter. The rated input voltage is 220VAC/230VAC with an input voltage range of 90-285VAC.
- AC Load Connection: Connect your AC loads to the inverter's output terminals. The inverter provides selectable AC output of 110/220VAC or 220/230VAC.
3.4 Parallel Function Configuration
The HP-AHP20A series supports parallel operation for increased power output or to form a three-phase system. Up to 12 units can be connected in standard configuration, with a maximum of 16 units. Refer to the detailed parallel connection guide in the full product manual for specific wiring and configuration steps.
4. Operating Instructions
4.1 Powering On/Off
- Power On: Ensure all connections are secure. Turn on the battery breaker, then the PV array breaker, and finally the AC utility breaker. The inverter will initiate its startup sequence.
- Power Off: Reverse the power-on sequence: first turn off the AC utility breaker, then the PV array breaker, and finally the battery breaker.
4.2 LCD Display and Monitoring
The inverter features a large LCD display that provides real-time status, operational parameters, and fault indications. Navigate through the menus using the buttons adjacent to the display to view information such as input/output voltage, current, power, battery status, and system settings.
4.3 System Modes and Settings
The inverter supports various operating modes, including battery-priority, utility-priority, and solar-priority. You can configure these modes and other settings, such as adjustable utility charging current and battery charge/discharge limits, via the LCD display or through the RS485 communication interface with optional 4G, WiFi, or TCP modules.
4.4 Data Recording
The inverter automatically records operational data, storing up to 25,000 records. The recording interval can be adjusted from 1 to 3600 seconds. This historical data can be accessed for performance analysis and troubleshooting.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your EPEVER inverter.
- Cleaning: Periodically clean the inverter's exterior to prevent dust accumulation, especially on ventilation openings. Use a dry, soft cloth. Do not use liquids or abrasive cleaners.
- Connections Check: Annually inspect all electrical connections (battery, PV, utility, load) for tightness and corrosion. Tighten any loose connections and clean any corrosion.
- Ventilation: Ensure the inverter's ventilation openings are clear and unobstructed to prevent overheating.
- Firmware Updates: Check the EPEVER official website for any available firmware updates to ensure your inverter has the latest features and bug fixes.
- Battery Health: For lead-acid batteries, regularly check electrolyte levels and specific gravity. For all battery types, monitor battery voltage and temperature to ensure they are within recommended ranges.
6. Troubleshooting
If you encounter issues with your inverter, refer to the following basic troubleshooting steps. For complex problems, consult the full product manual or contact EPEVER technical support.
- No Power Output: Check battery voltage, PV input voltage, and utility grid connection. Ensure all breakers are ON.
- Inverter Overheating: Check for obstructions around ventilation openings. Ensure ambient temperature is within operating limits. Reduce load if necessary.
- Low Battery Voltage Alarm: Check battery connections and ensure proper charging from PV or utility.
- Fault Codes on LCD: Refer to the full manual's fault code section for specific meanings and corrective actions.
- System Not Charging: Verify PV panel connections and output. Check utility input if charging from grid. Ensure battery settings are correct.
7. Specifications
The EPEVER HP-AHP20A Series includes several models with varying power ratings. Below is a detailed table of technical specifications.
| Parameter | HP2022-AH0750P20A | HP2042-AH0450P20A | HP3522-AH1250P20A | HP3542-AH0650P20A | HP5542-AH1050P20A |
|---|---|---|---|---|---|
| Battery (DC) | |||||
| Battery Type | Lithium battery / Lead-acid battery | ||||
| Voltage Range | 21.6-32.0VDC | 43.2-60.0VDC | 21.6-32.0VDC | 43.2-60.0VDC | - |
| Rated Voltage | 24VDC | 48VDC | 24VDC | 48VDC | 48VDC |
| Max. Charging Current | 70A | 40A | 120A | 60A | 100A |
| Max. Discharging Current | 103A | 52A | 180A | 90A | 140A |
| PV Input (DC) | |||||
| Max. Input Power | 3,000W | 4,000W | 6000W | ||
| Max. Input Voltage | 500V | ||||
| Max. PV Input Current | 15A | 16A | 15A+15A | ||
| Max. PV Short-Circuit Current | 18A | 18A+18A | |||
| MPPT Voltage Range | 85-400V | ||||
| Number of MPPTs | 1 | 2 | |||
| Number of Strings per MPPT | 1 | ||||
| Utility Input | |||||
| Rated Input Power (Charging+Bypass) | 3,050W | 5,350W | 8,550W | ||
| Max. Input Current | 13.6A | 22.7A | 36.4A | ||
| Rated Input Voltage | 220VAC/230VAC | ||||
| Input Voltage Range | 90-285VAC | ||||
| Rated Input Frequency | 45-65Hz | ||||
| Inverter Output | |||||
| Rated Power | 2,000W | 3,500W | 5,500W | ||
| Transient Surge Output Power | 4,000W (3S) | 7,000W (3S) | 8,500W (3S) | ||
| Rated Output Current | 9.1A | 15.9A | 25A | ||
| Output Voltage Level | 220/230VAC±3% | ||||
| Output Voltage Waveform | Pure Sine Wave | ||||
| Output Frequency Level | 50Hz/60Hz±0.2% | ||||
| THDu | ≤3% | ||||
| Load Power Factor | 0.2-1 | ||||
| Switch Time | Inverter to Utility: 10ms Utility to Inverter: 20ms | ||||
| Efficiency | |||||
| Max. Inverter Efficiency | 92% | 93% | 94% | ||
| Max. Load Efficiency | 90% | 92% | |||
| Environmental Parameters | |||||
| Operating Temperature | -20℃ to 50℃ (>30℃ Derating) | ||||
| Storage Temperature | -25℃ to 60℃ | ||||
| Relative Humidity | ≤95% (N.C.) | ||||
| Altitude | 4,000m (>2,000m Derating) | ||||
| Ingress Protection | IP20 | ||||
| Mechanical Parameters | |||||
| Dimensions (L × W × H)(mm) | 629×291.4×163 | 654×291.4×163 | 629×291.4×163 | 679×291.4×163 | |
| Mounting Size (L × W)(mm) | 592×200 | 617×200 | 592×200 | 642×200 | |
| Mounting Hole Size (L × W)(mm) | Φ9/Φ10 | ||||
| Weight (kg) | 13.3 | 15.3 | 14.3 | 17.5 | |
| Others | |||||
| No-load Loss | ≤26.4W | ≤28.8W | ≤28.8W | ≤38.4W | ≤52.8W |
| Standby Loss | ≤21.6W | ≤24W | ≤21.6W | ≤28.8W | ≤36W |
| Communication with BMS | RS485 | ||||
| Communication with Portal | RS485 | ||||
| Parallel Function | Yes, 12 Units in Standard, 16 Units at Most | ||||
| Display | LCD | ||||
8. User Tips
While specific user feedback is not available, general best practices for hybrid inverters include:
- Optimal Placement: Ensure the inverter is installed in a cool, dry place with good air circulation to maximize efficiency and lifespan.
- Regular Monitoring: Periodically check the LCD display for system status and any alerts. Utilize the data recording feature to track performance over time.
- Battery Compatibility: Always ensure your battery type and settings are correctly configured in the inverter to prevent damage and ensure efficient charging/discharging.
- Professional Installation: For complex setups, especially those involving parallel operation or three-phase configurations, consider professional installation to ensure safety and compliance.
9. Warranty & Support
For warranty information, technical support, or service inquiries, please refer to the official EPEVER website or contact your authorized dealer. Keep your purchase receipt and product serial number handy when contacting support.
