LABFENG AL-SF102
LABFENG Aquarium Chiller User Manual
Model: AL-SF102
Product Overview
The LABFENG Aquarium Chiller (Model AL-SF102) is designed to maintain optimal water temperatures for various aquatic environments, including aquariums and hydroponic systems. It features fast cooling capabilities, intelligent temperature control, and energy-efficient operation. This chiller is suitable for both freshwater and saltwater applications, thanks to its built-in anti-corrosion titanium tube.
Key features include a silent compressor for quiet operation (30-45dB), a digital display for real-time temperature monitoring, and a detachable air inlet mesh for easy cleaning. The unit comes with necessary accessories, including a water pump and connecting hoses, to facilitate immediate setup.
Package Contents
Upon opening the package, please verify that all components are present and undamaged. The standard package includes:
- LABFENG Aquarium Chiller Unit (Model AL-SF102)
- Water Pump (160L)
- Connecting Hoses
- Hose Clamps
- Sealing Gaskets
- Power Cord

Image: The LABFENG Aquarium Chiller unit shown with all included accessories: the chiller itself, a water pump, connecting hoses, hose clamps, and sealing gaskets.
Setup and Installation
Unpacking and Acclimation: Carefully remove the chiller from its packaging. It is crucial to allow the unit to sit upright for at least 2-4 hours before plugging it in. This allows the refrigerant and oils to settle after shipping, preventing potential damage to the compressor.
Placement: Position the chiller on a stable, level surface. Ensure there is adequate ventilation around the unit, especially at the front and back grilles, to allow for proper heat dissipation. Avoid placing it in direct sunlight or in an enclosed space.
Connecting the Water Pump: The included water pump is essential for circulating water through the chiller. Connect one end of the provided hose to the outlet of your water pump and the other end to the chiller's inlet port (typically marked "IN" or with an arrow pointing into the unit). Secure connections with hose clamps to prevent leaks.

Image: Close-up of the water pump, highlighting its four strong rubber suction cups designed for stable placement inside the tank.
Connecting to the Tank: Place the water pump inside your aquarium or hydroponic reservoir. Connect another hose from the chiller's outlet port (typically marked "OUT" or with an arrow pointing away from the unit) back into your tank. Ensure both hoses are securely fastened.

Image: Two diagrams illustrating connection methods. The left diagram shows direct connection of the water pump to the chiller for circulating refrigeration. The right diagram shows connecting the chiller to a filter before returning water to the tank, allowing for recirculation refrigeration through a filtration system.
Power Connection: Once all water connections are secure and the unit has acclimated, plug the chiller's power cord into a grounded electrical outlet (110V AC). Ensure the power outlet is suitable for the chiller's wattage (150W).
Operating Instructions
The LABFENG Aquarium Chiller features a user-friendly digital display for temperature control.

Image: Close-up of the chiller's digital display, showing the current water temperature and control buttons for adjustment.
Power On/Off: Press the power button on the control panel to turn the unit on or off. The digital display will illuminate, showing the current water temperature.
Setting Desired Temperature: Use the up and down arrow buttons on the control panel to adjust the target temperature. The chiller will automatically cool the water until it reaches the set temperature. The recommended temperature range for most aquatic life is 68-78°F (20-26°C).
Temperature Fluctuation (Differential): The chiller is designed to allow for a slight temperature variation around the set point to optimize energy efficiency and compressor lifespan. This differential is typically 1-3 degrees. For example, if set to 65°F with a 2-degree differential, the chiller will activate when the temperature reaches 67°F and cool down to 63°F before turning off.
Quiet Operation: The chiller is engineered for low noise operation, typically between 30-45dB, making it suitable for various indoor environments.

Image: An illustration depicting the low noise level of the chiller, showing a sleeping child undisturbed by its operation, with a decibel scale indicating its quiet performance compared to other common sounds.
Maintenance
Regular maintenance ensures the longevity and efficient operation of your chiller.
Cleaning the Air Inlet Mesh: The chiller features a detachable air inlet mesh for easy cleaning. Periodically remove and clean this mesh to prevent dust and debris buildup, which can impede airflow and reduce cooling efficiency. Use a soft brush or cloth to remove accumulated particles.

Image: A hand demonstrating the removal of the detachable air inlet mesh from the chiller unit, indicating its ease of cleaning.
Hose and Connection Inspection: Regularly inspect hoses and connections for any signs of leaks, kinks, or blockages. Ensure hose clamps remain tight.
Water Pump Cleaning: Clean the water pump regularly to prevent buildup of algae or debris, which can reduce flow rate and efficiency.
Refrigerant: The chiller uses non-polluting R134a refrigerant. There is no need to supplement refrigerant under normal operating conditions.
Troubleshooting
This section provides general guidance for common issues. For more complex problems, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Chiller not turning on | No power, loose connection, power button off. | Check power cord, ensure outlet is functional, press power button. |
| Water not cooling | Incorrect temperature setting, poor water flow, dirty air mesh, ambient temperature too high, tank size exceeds capacity. | Adjust temperature, check pump and hoses for blockages, clean air mesh, ensure proper ventilation, verify tank volume is within 160L (42gal) capacity. |
| Unit is noisy | Vibrations, fan obstruction, external pump noise. | Ensure unit is on a stable surface, check for obstructions around fans, note that external pumps may contribute to overall system noise. The chiller itself operates quietly (30-45dB). |
| Water leaks | Loose hose connections, damaged hoses. | Tighten hose clamps, inspect hoses for cracks or damage and replace if necessary. |
Specifications
| Model | AL-SF102 |
| Brand | LABFENG |
| Item Weight | 22 pounds (approx. 10 kg) |
| Product Dimensions (L x W x H) | 13.39 x 7.87 x 12.6 inches (approx. 34 x 20 x 32 cm) |
| Voltage | 110 Volts (AC) |
| Wattage | 150 watts |
| Cooling Power | 270W |
| Sound Level | 45 dB (max) |
| Applicable Tank Volume | Up to 42 gallons (160 liters) |
| Refrigerant | R134a (Freon-free) |
| Material | Stainless Steel |
| Usage | Aquariums and Hydroponics (Freshwater & Seawater) |

Image: A visual representation of the chiller's dimensions and a summary of its key specifications, including model, power, cooling capacity, voltage, refrigerant type, and applicable tank volume.
Warranty and Support
LABFENG offers a one-year warranty policy for this product. For any issues, questions, or support needs, please contact the manufacturer's professional after-sales team. Please refer to your purchase documentation for specific contact details.
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