1. Introduction
This manual provides essential information for the safe and efficient operation of your SAKO SUNON PRO 5.5KW Hybrid MPPT Solar Inverter. This pure sine wave inverter is designed to integrate solar power with grid electricity, featuring a built-in 100A MPPT solar charge controller and supporting up to 6000W of solar panel input with a 450Vdc solar input range. It is suitable for various applications, including residential and commercial solar energy systems.
Please read this manual thoroughly before installation and use, and keep it for future reference.
2. Key Features
- Pure Sine Wave MPPT Solar Inverter
- Integrated 100A MPPT Solar Charge Controller
- User-friendly LCD display with touch buttons
- Output Power Factor of 1.0
- Capable of operating with or without a battery
- Optional WiFi functionality for remote monitoring
- Wide PV input voltage range: 120-500VDC
- Smart battery charger and management for optimized battery performance
- Cold Start function
- Automatic restart upon AC recovery
- Compatible with LiFePO4 batteries
- Multiple communication options: USB, RS232, RS485
3. Product Overview
Familiarize yourself with the components and connections of your inverter:
Key Components:
- RS-232 Communication Port: For PC monitoring and control.
- USB Communication Port: For data transfer and monitoring.
- Power On/Off Switch: Main power control for the inverter.
- LCD Display: Shows system status, operational data, and settings.
- Status Indicator: Indicates the current operational status.
- Charging Indicator: Shows battery charging status.
- Fault Indicator: Alerts to system errors or malfunctions.
- Touch Buttons (ESC, UP, DOWN, ENTER): For navigating menus and adjusting settings on the LCD.
- AC Input: Connection for grid power or generator.
- AC Output: Connection for household appliances and loads.
- Circuit Breaker: Provides overcurrent protection for AC input.
- Battery Input: Connection for 48V DC battery bank (positive and negative terminals).
- PV Input: Connection for solar panels (positive and negative terminals, Max 500V).
4. Specifications
The following table details the technical specifications for the SUNON PRO 5.5KW Hybrid MPPT Solar Inverter:
| Attribute | Specification (5.5KW Model) |
|---|---|
| Product Name | hybrid solar inverter SUNON PRO 5.5KW |
| Type | DC/AC Inverters, High Frequency Inverter |
| Material | Aluminium-copper Alloy |
| Rated Power | 5500VA/5500W |
| Inverter Efficiency | 93% (Peak > 90%) |
| Inverter Wave Form | Pure Sine Wave |
| MPPT Solar Controller | 100A |
| MPPT Range Operation Voltage | 120-450VDC |
| Maximum PV Array Open Circuit Voltage | 500VDC |
| Maximum PV Array Power | 6000W |
| System Voltage | 48V |
| Output Voltage (V) | 220V/230V |
| AC Voltage Regulation (Batt. Model) | 230VAC ± 5% |
| Surge Power | 11000VA |
| Frequency Range | 50Hz/60Hz (Auto sensing) |
| Transfer Time | 10ms (UPS), 20ms (Appliances) |
| No Load Current | 1.1A |
| Battery Voltage | 48VDC |
| Low Battery Alarming Voltage | 44.0VDC |
| Low Battery Cut Off Protection Voltage | 42VDC |
| Low Battery Recovery Voltage | 46.0VDC |
| Floating Charge Voltage | 54VDC |
| Overcharge Protection | 64VDC |
| Maximum AC Charge Current | 60A |
| Maximum Charge Current | 100A |
| Other Function | Support no battery work |
| Protection | Overload, overcharge, over temperature |
| Dimensions (D*W*H) | 543mm x 394mm x 204mm |
| Net Weight | 10.5kg |
| Operating Environment Humidity | 5% to 95% Relative Humidity (Non-condensing) |
| Operating Temperature | 0°C-50°C |
| Certificate | CE, CB |
| Warranty | 1 year |
5. Installation and Setup
Proper installation is crucial for the safe and optimal performance of your inverter. It is recommended that installation be performed by a qualified electrician.
5.1. Mounting the Inverter
- Choose a suitable location that is dry, well-ventilated, and away from direct sunlight, heat sources, and flammable materials.
- Ensure adequate clearance around the inverter for proper airflow and cooling.
- Mount the inverter vertically on a sturdy wall using appropriate fasteners.
5.2. System Connection Diagram
The inverter integrates solar panels, batteries, and AC loads. Refer to the wiring diagrams below for correct connections.
5.3. Wiring Instructions
- PV Input Connection: Connect your solar panels to the PV input terminals (POS+ and NEG-) on the inverter. Ensure the total open circuit voltage of the solar array does not exceed 500VDC and the maximum power is within 6000W.
- Battery Connection: Connect the 48V DC battery bank to the BAT. DC 48V terminals (POS+ and NEG-). Observe correct polarity to prevent damage.
- AC Input Connection: Connect the grid power or generator to the AC INPUT terminals (L, N). Ensure the input breaker is rated appropriately for your AC source.
- AC Output Connection: Connect your AC loads (appliances) to the AC OUTPUT terminals (L, N).
- Communication Ports: Connect USB, RS232, or RS485 cables for monitoring and communication as needed.
WARNING: All wiring must comply with local and national electrical codes. Incorrect wiring can cause severe injury or damage to the equipment.
6. Operation
6.1. Powering On/Off
- To Power On: Ensure all connections are secure. Turn on the battery breaker first, then the AC input breaker (if applicable), and finally the PV input breaker. Switch the inverter's main power on using the ON/OFF switch. The LCD display will light up, and the inverter will begin its startup sequence.
- To Power Off: Turn off the inverter's main power switch. Then, turn off the PV input breaker, followed by the AC input breaker, and finally the battery breaker.
6.2. LCD Display and Control Buttons
The intelligent LCD display provides real-time system information and allows for configuration changes using the touch buttons.
Buttons:
- ESC: Exit current menu or return to previous screen.
- UP: Scroll up through menu options or increase values.
- DOWN: Scroll down through menu options or decrease values.
- ENTER: Confirm selection or enter a submenu.
Indicators:
- AC: Indicates AC input status.
- INV: Indicates inverter operation status.
- CHG: Indicates battery charging status.
- FAULT: Indicates a system fault or error.
Refer to the detailed menu structure in the full product manual for specific settings and monitoring options.
6.3. Product Video Overview
Watch this video for a visual overview of the SUNON PRO Solar Inverter:
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter. Always disconnect all power sources before performing any maintenance.
- Cleaning: Periodically clean the exterior of the inverter and ventilation openings to prevent dust accumulation, which can hinder cooling. Use a dry, soft cloth.
- Connection Checks: Annually inspect all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion. Tighten any loose connections.
- Battery Inspection: If using lead-acid batteries, check electrolyte levels and terminal cleanliness regularly. Follow battery manufacturer's maintenance guidelines.
- Environmental Check: Ensure the installation environment remains within the specified temperature and humidity ranges.
8. Troubleshooting
This section provides solutions to common issues you might encounter. For more complex problems, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No battery connection or low battery voltage; Inverter switch off; Loose wiring. | Check battery connections and voltage; Ensure inverter switch is ON; Verify all wiring is secure. |
| No AC output | Overload; Inverter fault; Output breaker tripped. | Reduce load; Check fault indicator on LCD; Reset output breaker. |
| Battery not charging | No PV input; PV voltage too low/high; AC input not present (if charging from AC); Faulty battery. | Check solar panel connections and sunlight; Verify PV voltage is within range (120-450VDC); Check AC input source; Test battery health. |
| Fault indicator lit | Overload, overcharge, over temperature, short circuit, or other internal fault. | Refer to the LCD display for specific error codes and consult the full manual for detailed troubleshooting steps. Disconnect loads and restart. |
9. User Tips
- For optimal performance, ensure your solar panel array voltage stays within the MPPT operating range (120-450VDC).
- Consider using the optional WiFi module for convenient remote monitoring of your system's performance and status.
- When connecting batteries, always use appropriately sized cables to minimize voltage drop and ensure efficient power transfer.
- Regularly monitor the LCD display for any warning messages or fault codes to address potential issues promptly.
10. Warranty and Support
The SAKO SUNON PRO 5.5KW Hybrid MPPT Solar Inverter comes with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For technical support, warranty claims, or service inquiries, please contact your original point of purchase or the manufacturer's authorized service center. Ensure you have your product model and purchase details available when contacting support.