1. Introduction
This manual provides essential information for the safe and efficient operation of your SRNE SPI-6.5K-UP 6.5kW Split Phase 120/240V Off-Grid Solar Inverter. Please read this manual thoroughly before installation and operation to ensure proper use and to prevent potential hazards. Keep this manual for future reference.
2. Safety Information
WARNING: This inverter generates high voltage. Improper installation or operation can result in serious injury or death. Only qualified personnel should perform installation and maintenance.
- Always disconnect all power sources (PV array, battery, utility) before servicing the inverter.
- Ensure proper grounding of the inverter.
- Do not operate the inverter if it is damaged or appears to be malfunctioning.
- Keep children away from the inverter.
- Install the inverter in a well-ventilated area, away from flammable materials.
- Observe all local electrical codes and regulations.
3. Product Overview
The SRNE SPI-6.5K-UP is a 6.5kW split-phase off-grid solar inverter designed to convert DC power from solar panels and batteries into AC power for household use. It features a pure sine wave output, high efficiency, and multiple protection functions.
3.1. Inverter Components
The inverter unit includes a front display for monitoring system status and settings, various connection ports on the rear for AC input/output, battery, and PV array, and ventilation grilles for cooling.
4. Specifications
| Item | Value |
|---|---|
| Model Number | SPI-6.5K-UP |
| Input Voltage (PV) | 150~450Vdc |
| Output Voltage | 120/240Vac (split phase/single phase) |
| Output Current | 80A |
| Output Frequency | 50/60Hz |
| Output Type | Split Phase |
| Size (L*W*H) | 584.6*410*133 mm |
| Type | DC/AC Inverters |
| Inverter Efficiency | 99.90% |
| Weight | 18.9 kg |
| Waveform | Pure Sine Wave |
| Switch Time | 10ms (typical) |
| Battery Type | Li-ion / Lead-Acid / User Defined |
| Battery Voltage | 48 VDC |
| Battery Voltage Range | 40-60Vdc |
| Operating Temperature Range | −10°C−55°C, >45°C derating |
| Noise | <60dB |
| Embedded Interfaces | RS485 / CAN / USB / Dry contact |
| Number of MPP Trackers | 2 |
| Max. PV Array Power | 10,000W |
| Protection | IP20 |
| Feature | Energy Saving Solar Inverter |
| Certificate | CE/IEC |
5. Installation
Proper installation is crucial for the safety and performance of your inverter. It is highly recommended that installation be performed by a certified electrician or solar professional.
5.1. Site Selection
- Choose a cool, dry, and well-ventilated location.
- Avoid direct sunlight, high temperatures, and humidity.
- Ensure sufficient clearance around the inverter for proper airflow and heat dissipation.
- Mount the inverter vertically on a sturdy wall or rack.
5.2. Wiring Connections
Refer to Figure 3.5 for the location of connection ports. All wiring must comply with local and national electrical codes.
- Grounding: Connect the inverter to a reliable earth ground.
- Battery Connection: Connect the battery bank to the BAT+ and BAT- terminals. Ensure correct polarity.
- PV Array Connection: Connect the solar panel strings to the PV1 and PV2 input terminals. Observe correct polarity and ensure the PV voltage is within the specified input range (150~450Vdc).
- AC Output Connection: Connect your load center or main electrical panel to the AC OUT terminals. This inverter provides 120/240Vac split-phase output.
- AC Input Connection (Optional): If using a generator or utility grid as a backup, connect it to the AC IN terminals.
- Communication Ports: Connect RS485, CAN, USB, or Dry contact cables as required for monitoring or external control.
CAUTION: Double-check all connections before powering on the inverter. Incorrect wiring can cause damage to the inverter and connected equipment.
6. Operation
6.1. Initial Startup
- After all connections are secure, switch on the battery breaker.
- Switch on the PV array disconnect switch.
- Turn the ON/OFF switch on the inverter (refer to Figure 3.5) to the 'ON' position.
- The inverter will perform a self-test and the display will show the operating status.
- If an AC input source is connected, switch on its breaker.
6.2. Display and Settings
The front display provides real-time information such as input voltage, output voltage, battery status, and error codes. Use the buttons adjacent to the display to navigate through menus and adjust settings. Consult the detailed operational guide (usually a separate document or advanced section of the full manual) for specific menu navigation and parameter adjustments, including battery type selection (Li-ion / Lead-Acid / User Defined).
6.3. Shutdown Procedure
- Turn off the AC output breaker to disconnect loads.
- If an AC input source is connected, turn off its breaker.
- Turn the ON/OFF switch on the inverter to the 'OFF' position.
- Switch off the PV array disconnect switch.
- Switch off the battery breaker.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your inverter.
- Cleaning: Periodically clean the exterior of the inverter and ventilation openings to prevent dust buildup. Use a dry, soft cloth. Do not use liquid cleaners.
- Connections: Annually inspect all electrical connections for tightness and signs of corrosion.
- Environment: Ensure the installation environment remains within the specified temperature and humidity ranges.
- Firmware: Check the manufacturer's website for any available firmware updates.
WARNING: Before performing any maintenance, ensure the inverter is completely shut down and all power sources are disconnected.
8. Troubleshooting
This section covers common issues you might encounter. For more complex problems, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No battery power; Inverter switch OFF; Loose connections | Check battery voltage; Ensure inverter switch is ON; Verify all connections are secure. |
| No AC output | Overload; Short circuit; Low battery voltage; Inverter fault | Reduce load; Check for short circuits; Charge battery; Check display for error codes. |
| Low PV charging current | Shaded panels; Dirty panels; Incorrect PV wiring; Low solar irradiance | Clear shading; Clean panels; Verify PV wiring and voltage; This may be normal on cloudy days. |
| Inverter making unusual noise | Overload; Fan malfunction; Internal fault | Reduce load; Check fan operation; If noise persists, contact support. |
9. User Tips
No specific user tips were available from provided reviews or Q&A content.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your original point of purchase or the manufacturer directly. Ensure you have your product model number (SPI-6.5K-UP) and serial number ready when contacting support.
