1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your SUNGOLDPOWER 3000W DC 24V Peak 9000W Inverter Charger. This device combines an inverter, a 40A battery charger, and an AC auto-transfer switch into a single, integrated system. It is designed to provide reliable AC power from a 24V DC battery source, suitable for various applications including home backup, RVs, campers, and marine use.
Please read this manual thoroughly before installation and operation to ensure proper use and to prevent damage to the unit or connected equipment.
2. Safety Instructions
WARNING: Failure to follow these safety instructions may result in serious injury, death, or property damage.
- Installation must be performed by qualified personnel in accordance with all applicable electrical codes.
- Ensure the inverter is disconnected from all power sources (AC and DC) before performing any wiring or maintenance.
- Do not expose the inverter to rain, snow, spray, or any liquids.
- Do not operate the inverter if it has been dropped or damaged.
- Ensure adequate ventilation around the inverter to prevent overheating. Do not block ventilation openings.
- Connect the inverter to a properly grounded electrical system.
- Do not connect AC output to public utility power.
- Use appropriate wire gauges for all connections as specified in the installation section.
- Keep children away from the inverter and its connections.
3. Product Overview
3.1 Key Features
- Pure Sine Wave Output: Provides clean and stable AC power, suitable for sensitive electronics.
- High Power Capacity: 3000W continuous power, with a 9000W surge capacity for 20 seconds to handle demanding loads.
- Integrated Charger: Built-in 40A battery charger for efficient battery replenishment.
- Automatic Transfer Switch: Seamlessly switches between utility/generator power and battery power.
- Wide Battery Compatibility: Supports 24V Lithium-ion, LiFePO4, AGM, Sealed Lead Acid, and Open Lead Acid batteries with 9 selectable battery types.
- Adjustable Charging Current: 0-100% adjustable charging current for optimal battery health.
- DIP Switch Settings: Customizable settings for Utility/Battery priority, Low Battery Trip Voltage, AC Input Range, Output Frequency, and Power Saver mode.
- Automatic Generator Start (AGS): Enables automatic starting of a compatible generator when battery voltage is low.
- Remote Control: Convenient remote control with LCD display for monitoring and adjustments.
- Multiple Protections: Includes over/low voltage, over temperature, and overload protection for safe operation.
3.2 What's in the Box
- 1 x SUNGOLDPOWER 3000W 24V Inverter Charger
- 1 x LCD Remote Control
- 1 x Battery Temperature Sensor (BTS) Cable
- 1 x User's Manual
Figure 3.2.1: Product and Included Accessories. This image displays the inverter unit, the LCD remote control, the battery temperature sensor cable, and the user manual, along with the overall dimensions of the inverter (22.1 inches length, 9.1 inches width, 7.5 inches height).
3.3 Product Components
Figure 3.3.1: Rear Panel Connections. This view highlights the DC input terminals (positive and negative), the cooling fan, DIP switches for configuration, the LED remote control port, the battery temperature sensor port, and the grounding terminal.
Figure 3.3.2: Front Panel Connections. This view shows the AC input and output terminals, the output sockets (standard NEMA 5-15R), and circuit breakers for charger input and inverter output protection.
4. Setup
4.1 Placement
- Install the inverter in a cool, dry, and well-ventilated area.
- Avoid direct sunlight, heat sources, and moisture.
- Mount the inverter securely on a non-combustible surface.
- Ensure at least 6 inches of clear space around all sides for proper airflow.
4.2 Wiring Connections
Refer to the connection diagram below for proper wiring. All wiring must comply with local and national electrical codes.
Figure 4.2.1: Typical Connection Diagram. This diagram illustrates how the inverter connects to utility power, a generator, a solar panel system (via a solar controller), a 24V battery bank, and various home appliances.
4.2.1 DC Battery Connection
- Use appropriate gauge cables for your 24V battery bank. Consult the manual for recommended cable sizes based on distance and current.
- Connect the positive (+) terminal of the battery bank to the positive (+) terminal on the inverter.
- Connect the negative (-) terminal of the battery bank to the negative (-) terminal on the inverter.
- Ensure all connections are tight and secure.
- Connect the Battery Temperature Sensor (BTS) cable to the designated port on the inverter and attach the sensor to the battery bank for accurate temperature compensation during charging.
4.2.2 AC Input Connection (Utility/Generator)
- Connect the AC input from your utility grid or generator to the AC input terminals on the inverter.
- Ensure proper polarity: Line (L), Neutral (N), and Ground (G).
- Install an appropriate circuit breaker or fuse on the AC input line for protection.
4.2.3 AC Output Connection (Loads)
- Connect your AC loads (appliances) to the AC output terminals or directly to the output sockets on the inverter.
- Ensure the total wattage of connected appliances does not exceed the inverter's continuous power rating.
4.2.4 Grounding
- Connect the inverter's chassis ground terminal to a reliable earth ground. This is crucial for safety.
4.3 DIP Switch Settings
The inverter features DIP switches for customizing various operational parameters. Refer to the specific settings in your detailed user manual for precise configurations. Key settings include:
- Utility/Battery Priority: Determines whether the inverter prioritizes AC input or battery power.
- Low Battery Trip Voltage: Sets the voltage at which the inverter will shut down to protect batteries.
- AC Input Range: Adjusts the acceptable voltage range for AC input.
- Output Frequency Setting: Configures the AC output frequency (e.g., 50Hz or 60Hz).
- Power Saver Setting: Enables or disables power saving mode to reduce idle consumption.
Figure 4.3.1: Battery Compatibility and Charging Features. This image illustrates the inverter's compatibility with LiFePO4, Lithium-ion, AGM, Sealed Lead Acid, and GEL batteries, along with the battery temperature sensor protection, 9 battery type selector, and 0-100% adjustable charging current.
5. Operating Instructions
5.1 Powering On/Off
- To Power On: Ensure all connections are secure. Turn on the DC breaker (if installed) to connect the battery. Then, switch the inverter's power button to the 'ON' position. The LCD display will illuminate, indicating operational status.
- To Power Off: Disconnect all AC loads. Switch the inverter's power button to the 'OFF' position. Then, turn off the DC breaker to disconnect the battery.
5.2 Inverter Mode
When the inverter is powered on and no AC input is present, it will draw power from the connected 24V battery bank and convert it to 120V AC power for your appliances. The LCD display will show output voltage, frequency, and load percentage.
5.3 Battery Charging Mode
When a stable AC input (utility or generator) is connected and the inverter is powered on, it will automatically begin charging the connected battery bank. The charging current can be adjusted via DIP switches or the remote control. The LCD display will show charging status and battery voltage.
5.4 Remote Control Usage
The included LCD remote control allows for convenient monitoring and adjustment of inverter settings from a distance. It displays real-time information such as input/output voltage, frequency, battery status, and fault codes. Refer to the remote control's specific instructions for navigation and setting changes.
Figure 5.4.1: Inverter Highlights and Remote Control. This image emphasizes key features such as low frequency industrial grade design, LCD display, remote control capability, AC/Battery priority setting, and overload protection, alongside a view of the remote control unit.
6. Maintenance
- Regular Inspection: Periodically inspect all wiring connections for tightness and corrosion. Clean any dust or debris from the inverter's ventilation openings.
- Battery Maintenance: Follow the battery manufacturer's recommendations for maintenance, including checking electrolyte levels (for flooded batteries) and terminal cleanliness.
- Environmental Checks: Ensure the installation environment remains cool, dry, and free from excessive dust.
- Firmware Updates: Check the manufacturer's website for any available firmware updates, though typically not user-updatable for this model.
7. Troubleshooting
This section provides solutions to common issues. For problems not listed here, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter does not turn on | No DC input; Loose battery connections; Blown DC fuse/breaker | Check battery voltage; Tighten connections; Replace fuse/reset breaker |
| No AC output | Overload; Low battery voltage; Over-temperature; AC output breaker tripped | Reduce load; Charge batteries; Allow unit to cool; Reset AC output breaker |
| Battery not charging | No AC input; AC input breaker tripped; Incorrect battery type setting | Check AC input source; Reset AC input breaker; Verify DIP switch battery settings |
| Fan constantly running | High internal temperature; Heavy load | Ensure adequate ventilation; Reduce load if possible |
8. Specifications
| Parameter | Value |
|---|---|
| Model Name | 3000W DC 24V Peak 9000W |
| Continuous Power | 3000 Watts |
| Peak Surge Power | 9000 Watts (for 20 seconds) |
| DC Input Voltage | 24V DC |
| AC Output Voltage | 120V AC |
| AC Output Waveform | Pure Sine Wave |
| Battery Charger Current | 40A (Adjustable 0-100%) |
| Efficiency | 88% (Peak Conversion) |
| Product Dimensions (L x W x H) | 22.1 x 9.1 x 7.5 inches |
| Item Weight | 57 pounds |
| Manufacturer | SUNGOLDPOWER |
| Recommended Uses | Recreational Vehicle, Boat, Camping, Home, Travel, Road trips |
9. Warranty and Support
SUNGOLDPOWER provides a 24-month warranty for this product, guaranteeing against defects in materials and workmanship under normal use. Additionally, lifetime technical support is available to assist you with any questions or issues you may encounter.
For warranty claims, technical assistance, or general inquiries, please refer to the contact information provided on the official SUNGOLDPOWER website or your purchase documentation.