1. Giới thiệu
This manual provides detailed instructions for the safe and efficient operation of your Fitnet AL-300L Aquarium Chiller. This unit is designed to maintain optimal water temperatures for various aquatic environments, including freshwater and saltwater aquariums, as well as hydroponic systems. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product.

Figure 1: Fitnet AL-300L Aquarium Chiller. This image shows the main chiller unit with its digital display and water inlet/outlet nozzles.
Tính năng sản phẩm:
- Làm mát hiệu quả: Features a high-efficiency compressor and R134a refrigerant for stable and precise temperature control.
- Phạm vi nhiệt độ: Effectively maintains water temperature between 68°F-79°F (20°C-26°C).
- Tản nhiệt hiệu quả: Equipped with multiple ventilation holes and two built-in cooling fans.
- Hoạt động ít tiếng ồn: Designed with silent fans to minimize operational noise.
- Ứng dụng đa năng: Suitable for freshwater and saltwater fish tanks, and hydroponic systems.
- Bộ sản phẩm đầy đủ: Includes water pump, water pipe, and connectors for immediate setup.

Figure 2: Versatile applications. This image illustrates the chiller's suitability for both hydroponic systems (top) and traditional fish tanks (bottom).
2. Thông tin an toàn
Vui lòng tuân thủ các biện pháp phòng ngừa an toàn sau đây để tránh thương tích hoặc hư hỏng sản phẩm.
- Luôn ngắt nguồn điện trước khi thực hiện bất kỳ công việc bảo trì, lắp đặt hoặc vệ sinh nào.
- Ensure the chiller is placed on a stable, level surface.
- Maintain at least 6 inches (15 cm) of clear space around the chiller for adequate heat dissipation. Blocking vents can lead to overheating and reduced performance.
- Do not operate the chiller if the power cord or plug is damaged.
- Do not immerse the main chiller unit in water. The water pump is submersible, but the chiller unit is not.
- Thiết bị này chỉ được sử dụng trong nhà.
- Để xa tầm tay trẻ em.
- Use a Ground Fault Circuit Interrupter (GFCI) for all electrical connections to prevent electrical shock.

Figure 3: Recommended clearance for heat dissipation. This diagram illustrates the importance of maintaining at least 6 inches (15 cm) of space between the chiller and any walls or obstructions to ensure proper airflow and cooling efficiency.
3. Nội dung gói hàng
Xác minh rằng tất cả các mục đều có trong gói trước khi tiến hành cài đặt.
- Fitnet AL-300L Aquarium Chiller Unit
- Máy bơm nước chìm
- Water Pipe (Hose)
- Connectors and Clamps
- Dây nguồn
- Hướng dẫn sử dụng (tài liệu này)

Figure 4: Included components. This image displays the main chiller unit alongside the water pump, hoses, connectors, and clamps that come with the product.

Figure 5: Submersible water pump. This image shows the water pump, designed for submersion in fresh or saltwater, which circulates water through the chiller.
4. Hướng dẫn thiết lập
Follow these steps for proper installation of your aquarium chiller.
- Positioning the Chiller: Place the chiller on a flat, stable surface near your aquarium or hydroponic system. Ensure there is at least 6 inches (15 cm) of clear space around all sides for optimal airflow and heat dissipation.
- Prepare Connectors: Gather the provided connectors, including the white sealing washers.
- Install Inlet/Outlet Nozzles:
- Insert a white sealing washer onto each inlet/outlet nozzle.
- Place the pipe joint into the black nut cap.
- Tighten the black nuts onto the chiller's inlet and outlet ports.
- Kết nối máy bơm nước: Attach one end of the water pipe to the outlet of the submersible water pump. Secure it with a clamp nếu cần thiết.
- Connect Chiller to System:
- Connect the other end of the water pipe from the pump to the chiller's inlet port.
- Connect a second water pipe from the chiller's outlet port back to your aquarium or hydroponic system.
- Đảm bảo mọi kết nối đều an toàn và kín nước để tránh rò rỉ.
- Bơm chìm: Place the submersible water pump into your aquarium or hydroponic reservoir. Ensure it is fully submerged and positioned to draw water effectively.
- Kết nối nguồn điện: Plug the chiller's power cord into a GFCI-protected electrical outlet. Plug in the water pump's power cord.

Figure 6: Chiller installation steps. This diagram illustrates the process of preparing accessories, installing sealing washers, attaching pipe joints, and tightening the black nuts for secure hose connections.

Figure 7: Chiller setup with an aquarium. This image shows the chiller unit connected to a small fish tank, illustrating the hose routing and the overall footprint of the chiller (dimensions: 12.6" H x 11.4" W x 11.4" D).
5. Hướng dẫn vận hành
The chiller features a digital control panel for temperature setting and calibration.
5.1. Bật/Tắt nguồn
Locate the power switch on the back of the unit. Flip the switch to the 'ON' position to power on the chiller. The digital display will illuminate.

Figure 8: Power switch. This image shows the main power switch located on the rear panel of the chiller unit.
5.2. Temperature Setting (Assumed Target Temperature Range: 75-79°F)
The chiller will begin cooling after a 2-3 minute power-on delay. To adjust the target temperature:
- Set Shutdown Temperature: Nhấn nút Bộ Chìa khóa. Sử dụng ▲ (lên) hoặc ▼ (down) arrow keys to adjust the desired shutdown temperature (e.g., 77°F). Press the đầu tiên phím để lưu.
- Set Starting Temperature (F1 Code): Nhấn và giữ Bộ chìa khóa cho đến khi F1 code appears. Then, press the Bộ key again. Use the ▲ or ▼ arrow keys to adjust the temperature difference (e.g., to 4°F for a working range of 4°F).

Figure 9: Temperature setting and F2 calibration. This image provides a visual guide to setting the shutdown temperature and adjusting the F1 code for the working temperature range, as well as the F2 calibration process.
5.3. F2 Calibration Setting
If the chiller's displayed temperature does not match an external thermometer, you can calibrate it:
- Nhấn và giữ Bộ phím để hiển thị F1. Nhấn nút ▲ phím để hiển thị F2. Nhấn Bộ lại.
- Sử dụng ▲ or ▼ arrow keys to adjust the offset value (e.g., to 5 if the chiller reads 77°F and the actual temperature is 72°F, meaning a -5 adjustment is needed). Press đầu tiên để trở về màn hình hiển thị nhiệt độ hiện tại.
6. Bảo trì
Regular maintenance ensures optimal performance and extends the lifespan of your chiller.
- Làm sạch lỗ thông hơi: Periodically check and clean the air intake and exhaust vents to prevent dust and debris buildup, which can impede heat dissipation. Use a soft brush or vacuum cleaner.
- Kiểm tra ống và kết nối: Regularly check hoses and connections for any signs of leaks, kinks, or damage. Replace damaged components immediately.
- Clean Water Pump: Disconnect power to the pump and remove it from the water. Disassemble and clean the impeller and pump housing to remove any algae or debris that may affect water flow.
- Chất lượng nước: Maintain good water quality in your aquarium or hydroponic system to reduce the buildup of contaminants in the chiller's internal components.
KHAI THÁC. Xử lý sự cố
If you encounter issues with your chiller, refer to the following common problems and solutions.
| Vấn đề | Nguyên nhân có thể | Giải pháp |
|---|---|---|
| Chiller not cooling or insufficient cooling. |
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| Nước rò rỉ từ các mối nối. |
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| Chiller making unusual noise. |
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| Digital display shows incorrect temperature. |
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8. Thông số kỹ thuật
| Tính năng | Chi tiết |
|---|---|
| Tên mẫu | AL-300L |
| Dung tích | 79 gallon / 300 lít |
| Kích thước (D x R x C) | 12.6 x 11.4 x 11.39 inch |
| Chất làm lạnh | R134a |
| Phạm vi nhiệt độ khuyến nghị | 68°F - 79°F (20°C - 26°C) |
| Vật liệu | Nhôm |
| Màu sắc | Đen |
| Nhà sản xuất | fitnessnet |
| Pump Power (Qmax) | 15W, 600L/H |
| Tậptage | 110V/60HZ |
9. Bảo hành và Hỗ trợ
Fitnet offers a Bảo hành 1 năm từ nhà sản xuất for this 79-gallon water chiller. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or any questions regarding your Fitnet Aquarium Chiller, please contact Fitnet customer service through your original purchase platform or the official Fitnet webđịa điểm.
Vui lòng giữ lại hóa đơn mua hàng để xác nhận bảo hành.