1. Introduction
This manual provides essential information for the safe and efficient operation of your ANENJI ANJ-4000W-24V-WIFI 4KW 24V MPPT Hybrid Solar Inverter. This device is designed to convert DC power from solar panels and/or batteries into AC power for household appliances, offering a reliable and efficient energy solution. It features a pure sine wave output, a built-in 100A MPPT solar charge controller, and supports operation with or without a battery.
Figure 1: ANENJI 4KW 24V Hybrid Solar Inverter and 24V 100Ah LiFePO4 Battery
2. Safety Information
- Read all instructions and cautionary markings on the unit and in this manual before installation and operation.
- Do not disassemble the unit. Refer servicing to qualified personnel.
- Ensure proper grounding.
- Keep away from flammable materials and liquids.
- Install in a well-ventilated area, away from direct sunlight and heat sources.
- Disconnect all power sources before performing any wiring or maintenance.
- This inverter is designed for indoor use. If used outdoors, ensure it is protected from direct weather exposure.
3. Product Overview
The ANENJI ANJ-4000W-24V-WIFI is a versatile hybrid solar inverter with advanced features for efficient power management.
Key Features:
- Pure Sine Wave Output
- Power Factor 1.0
- PV Input Voltage Range: 60-500VDC
- Built-in MPPT 100A Solar Charge Controller
- Lithium Battery Activation Function
- Capable of Operation Without Battery
- Detachable Dust Cover for Harsh Environments
- Optional WiFi Remote Monitoring
- Supports Multiple Output Priorities: UTL (Utility), SOL (Solar), SBU (Solar-Battery-Utility), SUB (Solar-Utility-Battery)
- EQ Function to Optimize Battery Performance and Extend Life Cycle
- Feed Into Grid Capability
Figure 2: Inverter Key Features
Inverter Components:
Figure 3: Inverter Front and Bottom Panel Overview
- LCD Display
- Status Indicator
- Charging Indicator
- Fault Indicator
- Function Buttons
- Power On/Off Switch
- AC Input
- AC Output
- PV Input
- Battery Input
- Wire Outlet Hole
- Grounding
4. Specifications
4.1 Inverter Specifications (Model: ANJ-4000W-24V-WIFI)
| Parameter | Value |
|---|---|
| Capacity | 4.2KVA / 4.2KW |
| Parallel Capability | NO |
| INPUT | |
| Nominal Voltage | 230VAC |
| Acceptable Voltage Range | 170-280VAC (For Personal Computer); 90-280VAC (For Home Appliances) |
| Frequency Range | 50/60HZ Auto sensing |
| OUTPUT | |
| Nominal Voltage | 230VAC±5% |
| Surge Power | 7000VA |
| Frequency | 50/60HZ |
| Wave Form | Pure Sine Wave |
| Transfer Time | 10ms (For Personal Computer); 20ms (For Home Appliances) |
| Peak Efficiency (PV to INV) | 95% |
| Peak Efficiency (Battery to INV) | 93% |
| Overload Protection | 5s@>=150% load; 10s@110%~150% load |
| Crest Factor | 3:1 |
| Admissible Power Factor | 0.6~1 (inductive or capacitive) |
| BATTERY | |
| Battery Voltage | 24VDC |
| Floating Charge Voltage | 27VDC |
| Overcharge Protection | 33VDC |
| Charging Method | CC/CV |
| Lithium Battery Activation | YES |
| Lithium battery Communication | YES (RS485) |
| SOLAR CHARGER & AC CHARGER | |
| Solar Charger Type | MPPT |
| Max. PV Array Power | 4500W |
| Max. PV Array Open Circuit Voltage | 500VDC |
| PV Array MPPT Voltage Range | 60VDC-500VDC |
| Max. Solar Input Current | 15A |
| Max. Solar Charge Current | 100A |
| Max. AC Charge Current | 80A |
| Max. Charge Current (PV+AC) | 100A |
| PHYSICAL | |
| Dimensions (DxWxH) | 358 x 295 x 100 mm |
| Package Dimensions (DxWxH) | 465 x 380 x 175 mm |
| Net Weight | 7 kg |
| Communication Interface | RS232 + RS485 |
| ENVIRONMENT | |
| Operating Temperature Range | -10°C to 50°C |
| Storage Temperature | -15°C to 50°C |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
Product specifications are subject to change without further notice.
Figure 4: Inverter Detailed Specifications
4.2 LiFePO4 Battery Specifications (24V 100Ah)
This inverter is compatible with LiFePO4 batteries. The following specifications are typical for a 24V 100Ah LiFePO4 battery:
- Nominal Voltage: 24V
- Nominal Capacity: 100Ah
- Built-in BMS: 100A
- Cycle Life: >6000 cycles at 0.2C; End of life 70% capacity.
- Charge Voltage: 14.6±0.2V
- Charger Current: 20A
- Max. Charge Current: 50A
- Max. Continuous Current: 100A
- Max. Pulse Current: 200A (<3S)
- Discharge Cut-off Voltage: 10.0V
- Charge Temperature: 0 to 45℃ (32 to 113℉)
- Discharge Temperature: -20 to 60℃ (-4 to 140℉)
- Storage Temperature: 0 to 45℃ (32 to 113℉)
- Water Dust Resistance: IP65
- Case Material: ABS
Figure 5: LiFePO4 Battery Key Features
Figure 6: LiFePO4 Battery Dimensions (522mm x 238mm x 222mm)
Figure 7: LiFePO4 Battery Specifications (for 12V and 24V models)
5. Installation and Setup
Proper installation is crucial for the safe and efficient operation of your inverter. Ensure all connections are secure and follow local electrical codes.
5.1 Mounting the Inverter
- Choose a vertical surface for mounting.
- Ensure adequate clearance around the inverter for proper ventilation (at least 20 cm on all sides).
- Avoid mounting on flammable construction materials.
- Install at eye level for easy access to the LCD display.
- The inverter is designed for indoor use. If installed in a harsh environment, utilize the detachable dust cover.
5.2 Wiring Connections
Refer to the diagrams below for typical wiring configurations. Always ensure the inverter is OFF before making any connections.
5.2.1 Operation Without Battery Connected
In this mode, the inverter can directly power household appliances from the PV array and/or the power grid. The battery connection is bypassed.
Figure 8: Wiring Diagram - Operation Without Battery
- Connect the PV array to the PV input terminals.
- Connect the power grid to the AC input terminals.
- Connect household appliances to the AC output terminals.
- Ensure the battery terminals are not connected.
5.2.2 Operation With Battery Connected
This configuration allows for energy storage in the battery, providing backup power and optimizing solar energy usage.
Figure 9: Wiring Diagram - Operation With Battery
- Connect the PV array to the PV input terminals.
- Connect the power grid to the AC input terminals.
- Connect the battery (e.g., 24V 100Ah LiFePO4) to the battery input terminals.
- Connect household appliances to the AC output terminals.
- Ensure correct polarity for all DC connections (PV and Battery).
- Connect the grounding wire to the grounding terminal.
Important: Always connect the battery first, then PV, then AC input. Disconnect in reverse order.
5.3 Initial Power-Up
- After all connections are secure, turn on the battery breaker (if applicable).
- Turn on the PV array breaker (if applicable).
- Turn on the AC input breaker (if applicable).
- Flip the inverter's Power On/Off switch (6) to the "ON" position.
- Observe the LCD display (1) and status indicators (2, 3, 4) for normal operation.
6. Operating Instructions
6.1 LCD Display and Function Buttons
The LCD display provides real-time operational status and allows for configuration changes using the function buttons (5).
- LCD Display (1): Shows system parameters, operating mode, and error codes.
- Status Indicator (2): Indicates the inverter's operational status.
- Charging Indicator (3): Shows battery charging status.
- Fault Indicator (4): Illuminates when an error or fault occurs.
- Function Buttons (5): Used to navigate menus, adjust settings, and confirm selections.
6.2 Output Priority Settings
The inverter supports multiple output priorities to manage power flow:
- UTL (Utility First): Prioritizes power from the utility grid. Solar power charges the battery, and the battery supplies power when the grid is unavailable.
- SOL (Solar First): Prioritizes solar power for loads. Excess solar charges the battery. Grid power is used only when solar and battery power are insufficient.
- SBU (Solar-Battery-Utility): Prioritizes solar, then battery, then utility. Solar powers loads and charges battery. Battery powers loads when solar is insufficient. Utility is used as a last resort.
- SUB (Solar-Utility-Battery): Prioritizes solar, then utility, then battery. Solar powers loads and charges battery. Utility powers loads when solar is insufficient. Battery is used as a last resort (e.g., grid outage).
Consult the inverter's LCD menu for detailed instructions on how to select and configure these priorities.
6.3 WiFi Remote Monitoring
The optional WiFi module allows for real-time performance monitoring via a mobile application, eliminating the need to check the inverter's LCD directly.
Figure 10: WiFi Remote Monitoring
- Connect the WiFi module to the inverter's communication port.
- Download the dedicated mobile application (refer to the WiFi module's separate instructions for app details).
- Follow the app's instructions to connect the inverter to your local WiFi network.
- Monitor system performance, view historical data, and receive alerts directly on your smartphone.
6.4 Lithium Battery Activation
The inverter includes a feature for activating lithium batteries, ensuring proper initial setup and compatibility. Refer to the inverter's LCD menu or specific battery documentation for the activation procedure, especially if the battery is new or has been deeply discharged.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter system.
- Cleaning: Periodically clean the inverter's exterior with a dry cloth. Ensure ventilation openings are free from dust and debris. The detachable dust cover can be cleaned or replaced as needed.
- Connections: Annually check all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion.
- Battery Health: If using batteries, monitor their health and charge status via the LCD or WiFi app. Ensure they are operating within recommended temperature ranges.
- Environment: Ensure the installation environment remains within specified temperature and humidity limits.
- Firmware Updates: Check the manufacturer's website for any available firmware updates for the inverter or WiFi module.
8. Troubleshooting
This section provides solutions to common issues. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No battery power; Power switch off; Loose connections | Check battery voltage; Ensure power switch is ON; Verify all connections are secure. |
| No AC output | Overload; Battery low; Fault indicator on | Reduce load; Check battery charge; Refer to LCD for fault code and consult manual. |
| Battery not charging | PV input too low; AC input not present; Charging settings incorrect | Check PV voltage/current; Verify AC input connection; Adjust charging parameters via LCD. |
| WiFi monitoring not working | WiFi module not connected; Network issues; App configuration error | Ensure module is properly installed; Check home WiFi network; Reconfigure app settings. |
Figure 11: Inverter Protection Features
9. User Tips
- For optimal battery life, avoid consistently deep discharging your LiFePO4 battery.
- Utilize the WiFi monitoring feature to keep track of your system's performance and identify potential issues early.
- Experiment with different output priority settings (UTL, SOL, SBU, SUB) to find the most efficient configuration for your specific energy needs and local grid conditions.
- Consider the detachable dust cover for installations in dusty or humid environments to prolong the inverter's lifespan.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt and product serial number handy for faster service.