1. Introduction
The Sako Sunon V 4.5KVA/4.2KW Hybrid MPPT Solar Inverter is a versatile power solution designed for both on-grid and off-grid applications. It features a built-in 120A MPPT solar charge controller and delivers a pure sine wave output. This inverter is capable of operating without a battery, offering flexibility in solar energy management. It integrates multiple functions to maximize energy utilization and reduce electricity bills.
Key Features:
- Built-in Local WiFi for mobile monitoring (App available).
- OTG function supports data event storage.
- Optional RGB or movable LCD case design.
- Reserved communication ports (RS485, CAN-BUS, RS232) for Battery Management Systems (BMS).
- Battery independent design, allowing operation without a battery.
- Battery equalization extends battery lifecycle.
- Dual (Twin) AC Output for flexible load management.
- Enhanced charging power.
- Built-in anti-dust kit for improved durability.
- Hybrid functionality for both off-grid and on-grid operation.
2. Safety Instructions
WARNING! All wiring must be performed by qualified personnel.
For safe operation and regulatory compliance, it is highly recommended to install a separate DC over-current protector or disconnection device between the battery and the inverter. While not always strictly necessary in all applications, it significantly enhances safety. Always refer to typical amperage requirements for proper sizing.
It is crucial for system safety and efficient operation to use appropriate cables for battery connections. To reduce the risk of injury and ensure optimal performance, always use the recommended cable and terminal sizes as specified in the installation guidelines.
Comprehensive Protection Features:
The inverter is equipped with 360° protection mechanisms to ensure safe and reliable operation:
- Short Circuit Protection
- Over-Load Protection
- Over Charge Protection
- Over Current Protection
- Backfill Protection
- Over Voltage Protection
- Under Voltage Protection
- Over-Temperature Protection
Image: Inverter with icons illustrating various protection features.
3. Product Overview
Familiarize yourself with the inverter's components and their functions before installation and operation.
Image: Front and side view diagram of the inverter.
Front Panel Components:
- LCD display
- RGB LED bar (refer to LCD Setting section for details)
- Touchable function keys
- Power on/off switch
Image: Rear view of the inverter with labeled connection ports.
Rear Panel Components:
- AC input connectors
- AC output connectors (Load connection)
- Battery connectors
- PV connectors
- Circuit breaker
- Dry contact
- USB port (for communication and function)
- RS-232 communication port
- BMS communication port (CAN, RS-485 or RS-232)
4. Installation and Setup
Battery Connection:
The 4.5KVA model supports a 24VDC battery system. It is recommended to connect a minimum of 100Ah capacity battery for the 4.5KVA model. Ensure all battery packs are connected as per the diagram below.
Wiring Procedure:
- For the 4.5KVA model, prepare four battery wires.
- Apply ring terminals to your battery wires and secure them to the inverter's battery terminal block. Tighten the bolts properly.
- Ensure correct polarity at both the battery and the inverter. Ring terminals must be securely fastened to the battery terminals.
Image: Battery connection diagram for 4.5KVA and 6.5KVA models, with recommended cable and terminal sizes.
Recommended Battery Cable and Terminal Size:
| Model | Typical Amperage | Wire Size | Cable mm² | Ring Terminal Dimensions | Torque Value | |
|---|---|---|---|---|---|---|
| D (mm) | L (mm) | |||||
| 4.5KVA | 166.7A | 4*4AWG | 25 | 8.4 | 33.2 | 5 Nm |
| 6.5KVA | 129.6A | 2*2AWG or 4*4AWG | 38 or 25 | 8.4 | 39.2 or 33.2 | 5 Nm |
Dual Load Output Power:
The inverter features dual AC output ports. The main output port will cease operation if the battery voltage drops below a set range (typically 20V - 23V). In such cases, only the second output port will remain active.
Image: Diagram illustrating the dual load output power configuration.
5. Operating Modes
The Sako Sunon V inverter offers various charging and output modes to optimize energy usage based on your preferences and available power sources.
Four Safe Charging Modes:
- Solar Charging: Prioritizes charging from solar panels.
- Utility Charge: Uses utility power for charging (solar as backup).
- Solar Priority: Prioritizes solar for charging, using utility as backup.
- Solar + Utility Charging: Combines solar and utility power for charging.
Three Output Modes:
- PV Priority: Prioritizes solar power for loads.
- Utility Priority: Prioritizes utility power for loads.
- SBU Priority (Solar-Battery-Utility): Prioritizes solar, then battery, then utility for loads.
Image: Visual representation of charging and output modes.
Energy Use Optimization:
The inverter allows for advanced energy management to maximize self-consumption and reduce electricity costs.
Image: Diagram illustrating various energy flow scenarios for optimization.
Common Energy Flow Settings:
- CSO Solar First: Prioritizes solar power for consumption.
- Utility First: Prioritizes utility power for consumption.
- SNU Solar and Utility (default): Balances solar and utility usage.
- OSO Only Solar: Uses only solar power.
- SUB Solar First (Default): Solar power first, then battery, then utility.
- USB Utility First: Utility power first, then solar, then battery.
- SBU Priority: Solar, then battery, then utility.
6. Specifications
Detailed technical specifications for the Sako Sunon V 4.5KVA/4.2KW Hybrid MPPT Solar Inverter.
Image: Technical parameters for Sunon V 4.5KVA/24V and 6.5KVA/48V models.
Technical Parameters (Sunon V 4.5KVA/24V):
| Parameter | Value |
|---|---|
| Rated Power | 4500VA/4200W |
| Battery Voltage | 24 VDC |
| Floating Charge Voltage | 27 VDC |
| Overcharge Protection | 33 VDC |
| Voltage | 230 VAC |
| Selectable Voltage Range (PC) | 170-280 VAC |
| Selectable Voltage Range (Home Appliances) | 90-280 VAC |
| Frequency Range | 50 Hz/60 Hz (Auto sensing) |
| AC Voltage Regulation (Batt. Mode) | 230 VAC ± 5% |
| Surge Power | 8400VA |
| Efficiency (Peak) | 90%~93% |
| Transfer Time (PC) | 10 ms |
| Transfer Time (Home Appliances) | 20 ms |
| Waveform | Pure sine wave |
| Solar Charger Type | MPPT |
| Maximum PV Array Power | 5000W |
| Max. Input Current | 27A |
| MPPT Range @ Operating Voltage | 60-450V |
| Maximum PV Array Open Circuit Voltage | 500 VDC |
| Maximum Solar Charge Current | 120 A |
| Maximum AC Charge Current | 100 A |
| Maximum Charge Current | 120 A |
| Physical Dimension (D x W x H) | 583mm*380mm*214mm |
| Net Weight | 9.5 kgs |
| Communication Interface | USB/RS232/RS485(BMS)/Local WiFi/Dry-contact |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -15°C to 60°C |
Image: Inverter dimensions (420mm H x 310mm W x 110mm D).
7. Troubleshooting
This section provides general guidance for common issues. For complex problems, consult a qualified technician.
Common Issues and Solutions:
- No Power Output: Check AC input connection, circuit breaker, and battery connections. Ensure the power on/off switch is in the 'ON' position.
- Inverter Overload: Reduce the connected load. The inverter has over-load protection and will shut down if overloaded.
- Battery Low Voltage: Ensure batteries are adequately charged. Check solar panel input and utility charging status. The main AC output may cease if battery voltage is too low.
- Over-Temperature: Ensure proper ventilation around the inverter. Clear any obstructions from cooling fans. The built-in anti-dust kit helps maintain airflow, but regular checks are recommended.
- Fault Indicator On: Refer to the LCD display for specific error codes or messages. Consult the detailed manual (if available) for code interpretations.
8. User Tips
Based on common user inquiries and experiences, here are some helpful tips:
- Battery Compatibility: The inverter supports 24VDC battery systems. When using LiFePO4 or other advanced battery types, ensure their voltage range (21-32Vdc) and charging parameters are compatible with the inverter's specifications to prevent damage and ensure optimal performance.
- Voltage Output: This inverter is designed for 220-240VAC output. It is not compatible with 110V systems. Verify your load requirements match the inverter's output voltage.
- Parallel Operation: The provided specifications do not explicitly state support for parallel operation. If you require a higher power output, consult the manufacturer or a qualified installer for compatible solutions.
- Monitoring: Utilize the built-in WiFi and mobile app for convenient monitoring of your system's performance and status.
9. Maintenance
Regular maintenance ensures the longevity and optimal performance of your Sako Sunon V inverter.
- Cleaning: Periodically clean the exterior of the inverter with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Ventilation: Ensure that the inverter's ventilation openings are clear of dust and debris. The built-in anti-dust kit helps, but occasional inspection is still recommended. Maintain adequate clearance around the unit for proper airflow.
- Connections: Periodically check all electrical connections (AC input, AC output, battery, and PV) to ensure they are secure and free from corrosion. Loose connections can lead to overheating and poor performance.
- Firmware Updates: If available, check for firmware updates via the mobile app or manufacturer's website to ensure your inverter has the latest features and bug fixes.
10. Warranty and Support
The Sako Sunon V Hybrid MPPT Solar Inverter is certified with CE and RoHS standards, indicating compliance with European safety, health, and environmental protection requirements.
For specific warranty terms, technical support, or service inquiries, please contact your seller or the manufacturer directly. Ensure you have your product model number and serial number available when seeking support.
Origin: Mainland China
