Foval Pure Sine Wave Inverter Instruction Manual

1. Introduction

Thank you for choosing the Foval Pure Sine Wave Inverter. This device is designed to convert DC power from your battery into clean, stable AC power, suitable for a wide range of household and electronic appliances. Its pure sine wave output ensures compatibility with sensitive electronics, providing reliable power for your road trips, camping, field work, and other off-grid needs. This manual provides essential information for the safe and efficient operation of your inverter.

2. Important Safety Information

Please read and understand all safety instructions before operating the inverter. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Ensure the rated power of the inverter is higher than the appliance you intend to power.
• When running multiple devices simultaneously, calculate their total wattage to avoid overloading the inverter.
• For inductive loads (appliances with motors like refrigerators, drills, washing machines, microwave ovens, hair dryers), choose a pure sine wave inverter whose continuous power is 3-7 times higher than the appliance's wattage.
• Always use the standard battery cables provided with the inverter to ensure full power output and safe operation.
• Never connect the inverter directly to grid power.
• Do not reverse the positive and negative battery connections; this can cause severe damage to the inverter and battery.
• Avoid overloading the inverter. If an overload occurs, the inverter will shut off automatically.
• Keep the inverter in a well-ventilated area to prevent overheating.

3. Product Overview

The Foval Pure Sine Wave Inverter is a robust power solution featuring high peak output power and continuous output for various applications. It includes multiple protection features and a digital display for easy monitoring.

3.1. Key Features

• Pure Sine Wave Output: Provides clean and stable power, ideal for sensitive electronics.
• High Power Capacity: Available in 4000W continuous / 8000W peak output.
• Multiple Input Voltages: Supports 12V, 24V, and 48V DC input.
• Universal Sockets: Compatible with UN, EU, and US socket types.
• Wireless Remote Control: Conveniently turn the inverter on/off from a distance (up to 50 meters).
• Digital LED Display: Shows real-time input and output voltage.
• Comprehensive Protection: Includes over-temperature, input low/high voltage, overload, short-circuit, reverse connection, and over-current protection.
• Efficient Cooling: Equipped with dual cooling fans for optimal performance and quiet operation.

3.2. Component Identification

4. Specifications

5. Setup Instructions

Proper connection is crucial for the safe and efficient operation of your inverter. Follow these steps carefully.

5.1. Battery Connection

Connect the inverter directly to a 12V, 24V, or 48V battery (matching your inverter model) using the provided battery cables. Ensure correct polarity: red cable to the positive (+) terminal and black cable to the negative (-) terminal.

5.2. Cigarette Butt Connection (for lower power devices)

For lower power devices, you may use the cigarette lighter adapter. Connect the inverter to your vehicle's 12V outlet. Ensure the inverter's power rating is suitable for the cigarette lighter circuit.

5.3. Initial Power-Up

1. After connecting the battery, ensure all connections are secure.
2. Switch the inverter's ON/OFF/Remote switch to the 'ON' position.
3. Check the LED display for input and output voltage readings. The working light should illuminate.
4. If using the remote control, ensure the switch is in the 'Remote' position.

6. Operating Instructions

6.1. Powering Appliances

• Once the inverter is powered on, plug your AC appliances into the AC sockets on the front panel.
• For USB-powered devices, use the USB port.
• Monitor the input and output voltage displays to ensure stable operation.

6.2. Frequency Selection

The inverter supports both 50Hz and 60Hz output frequencies. Use the frequency switch on the front panel to select the appropriate frequency for your region and appliances. The switch typically has two positions: '50Hz' and '60Hz'.

6.3. Remote Control Operation

The wireless remote control allows you to switch the inverter ON or OFF from a distance. Ensure the inverter's main switch is set to 'Remote' mode for the remote control to function. The remote control requires a 23A 12V battery (not included).

6.4. Demonstration Video

Watch this video to see the Foval Pure Sine Wave Inverter powering various appliances:

7. Maintenance

• Cleaning: Regularly clean the exterior of the inverter with a dry, soft cloth. Do not use liquids or abrasive cleaners.
• Ventilation: Ensure the cooling fans and vents are free from dust and obstructions to maintain proper airflow. Blocked vents can lead to overheating.
• Connections: Periodically check all electrical connections (battery terminals, appliance plugs) to ensure they are tight and free from corrosion.
• Storage: If storing the inverter for an extended period, disconnect it from the battery and store it in a cool, dry place.
• Fuse Replacement: The package includes spare fuses. If a fuse blows due to a short circuit or overload, replace it with a fuse of the same rating. Always disconnect power before replacing fuses.

8. Troubleshooting

This section addresses common issues you might encounter with your inverter.

8.1. Common Issues and Solutions

• Inverter not turning on:
  - Check battery connections for tightness and correct polarity.
  - Ensure the battery voltage is within the specified range (9V-15.5V for 12V systems, etc.).
  - Verify the inverter's ON/OFF switch is in the 'ON' or 'Remote' position.
• No output power:
  - Check if the appliance is correctly plugged in.
  - Ensure the appliance's power consumption does not exceed the inverter's continuous power rating.
  - The inverter may have entered protection mode (overload, low/high voltage, over-temperature). Disconnect the load, turn the inverter off, wait a few minutes, and restart.
• Fan not rotating:
  - The inverter's cooling fan only turns on when the internal temperature reaches a certain threshold or when under heavy load. This is normal operation.
• Low Voltage Alarm:
  - The alarm sounds when the DC input voltage drops to 10V DC±0.5V. This indicates the battery is running low. Recharge or replace the battery. The inverter will shut down at 9V DC±0.5V to protect the battery.
• Overload Protection:
  - If the load exceeds the inverter's capacity, it will shut off. Reduce the load and restart the inverter. Remember to account for the high starting current of inductive loads.
• Over-temperature Protection:
  - If the inverter gets too hot, it will shut off. Ensure adequate ventilation and reduce the load if necessary. Allow it to cool down before restarting.

8.2. Multiple Protection Features

9. Frequently Asked Questions (FAQ)

9.1. What is Peak Power and Rated Power?

• Peak Power: Refers to the maximum power the inverter can momentarily supply, typically during the startup of motor-type loads. The instantaneous starting power can be 3-7 times the rated power.
• Rated Power (Continuous Working Power): Refers to the power the inverter can continuously supply under normal operating conditions.

9.2. What is an Inductive Load Appliance?

An inductive load appliance refers to high-power electrical products that operate based on the principle of electromagnetic induction. Examples include motors, compressors, and relays. These devices typically have a starting power that significantly exceeds their continuous rated power (often 3-7 times higher).

9.3. How long can the inverter work?

The operating time of the inverter depends on the battery voltage, battery capacity, and the total power consumption of the electrical appliances connected. A theoretical calculation is:

Time = (Battery Voltage * Battery Capacity * 0.9) / Total Power of Electrical Appliances

This is a reference only; actual performance depends on the battery's charge status and health. Ensure your battery is fully charged and in good condition.

9.4. Why doesn't the inverter fan rotate?

The inverter's cooling fan is designed to operate only when the unit reaches a certain internal temperature, typically under load. If the inverter is running at a low load or in a cool environment, the fan may not activate. This is normal behavior and indicates stable operation.

9.5. What is inverter conversion efficiency?

Inverter conversion efficiency is the ratio of the output power to the input power. The inverter consumes a small amount of power during operation. An efficiency of >90% means that over 90% of the input DC power is converted into usable AC output power.

10. User Tips

• For optimal performance and longevity, always ensure your battery is fully charged before using the inverter for high-power applications.
• Consider the surge power requirements of your appliances, especially those with motors, as they can draw significantly more power at startup than their continuous rating.
• Keep the inverter in a location where it can receive ample airflow to prevent overheating, which can trigger automatic shutdown.
• The remote control is very convenient for situations where the inverter is not easily accessible, such as in an RV or a remote setup.

11. Package Contents

Upon opening your Foval Pure Sine Wave Inverter package, you should find the following items:

• 1 x Foval Pure Sine Wave Power Inverter
• 4 x Battery Cables (2 red, 2 black)
• 6 x Spare Fuses
• 1 x User Manual (this document)
• 1 x Wireless Remote Control (requires 23A 12V battery, not included)

12. Warranty and Support

Foval is committed to providing high-quality products. This inverter is certified with CE and ISO9001, ensuring it meets international quality and safety standards.

For any technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact your retailer or the Foval customer support team. Please have your product model and purchase date available when contacting support.