1. Introducció i finalview
The AC Infinity MULTIFAN S1 is an ultra-quiet, UL-certified 80mm USB fan designed to provide efficient cooling for various electronic devices and components. This fan features a multi-speed controller, allowing users to adjust the fan's speed to achieve optimal balance between airflow and noise levels. Its dual-ball bearings ensure a long lifespan and enable flexible placement, whether laid flat or standing upright. The fan is powered conveniently via a standard USB port, commonly found on AV electronics, game consoles, and computers.
2. Característiques del producte
- Funcionament ultra silenciós: Engineered with a PWM-motor for minimal noise output.
- Multi-Speed Controller: Allows adjustment of fan speed for customized airflow and noise levels.
- Rodaments de doble bola: Provides a long lifespan of 67,000 hours and supports versatile mounting orientations.
- Alimentat per USB: Connects to standard USB ports for power, eliminating the need for an external power adapter.
- Anti-Vibration Feet: Includes silicone feet to absorb vibrations and reduce noise.

Figure 2.1: The MULTIFAN S1 is designed for quiet cooling of various electronic devices.
3. Instruccions de configuració
- Desempaquetar el ventilador: Carefully remove the MULTIFAN S1 and its accessories from the packaging.
- Posicionar el ventilador: Place the fan on or near the electronic device you wish to cool. Ensure the fan's airflow direction is appropriate for your cooling needs (e.g., blowing air onto a hot surface or exhausting hot air away). The included rubber feet help stabilize the fan and reduce vibration.
- Connecteu-vos a l'alimentació: Plug the USB connector into an available USB port on your device (e.g., receiver, game console, computer) or a USB wall adapter.
- Ajustar velocitat: Use the integrated multi-speed controller to select your desired fan speed.

Figure 3.1: The AC Infinity MULTIFAN S1 with its speed controller and USB connection.
4. Instruccions de funcionament
The MULTIFAN S1 features a simple multi-speed controller for easy operation:
- High Speed (H): Provides maximum airflow for situations requiring significant cooling.
- Medium Speed (M): Offers a balanced airflow suitable for most applications, maintaining a good balance between cooling performance and noise.
- Low Speed (L): Delivers minimal noise for environments where quiet operation is paramount, with reduced airflow.
- Apagat: A convenient switch to power off the fan.
Simply slide the switch on the controller to select your preferred speed setting or to turn the fan off.

Figure 4.1: The multi-speed controller allows for easy adjustment of fan performance.
5. Manteniment
To ensure optimal performance and longevity of your MULTIFAN S1, follow these simple maintenance guidelines:
- Neteja regular: Periodically clean the fan blades and grille to prevent dust buildup, which can impede airflow and increase noise. Use a soft, dry cloth or compressed air.
- Inspect Bearings: While the dual-ball bearings are designed for long life, occasionally check for any unusual noises or resistance during operation, which might indicate an issue.
- Inspecció del cable: Ensure the USB cable and speed controller are free from damage.

Figure 5.1: The fan's internal components, including the PWM motor and dual-ball bearings, contribute to its quiet operation and durability.
6. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El ventilador no gira | No power; loose connection; controller set to 'Off' | Ensure USB is securely plugged in. Try a different USB port. Check controller switch is set to H, M, or L. |
| Excés de soroll o vibració | Dust buildup; fan not stable; damaged bearings | Clean fan blades and grille. Ensure fan is placed on a flat, stable surface. Check if rubber feet are properly installed. |
| Refrigeració insuficient | Fan speed too low; incorrect placement | Increase fan speed using the controller. Adjust fan position to optimize airflow to or from the device. |

Figure 6.1: The anti-vibration feet help minimize noise and ensure stability.
7. Especificacions
| Característica | Detall |
|---|---|
| Model | AI-MPF80A |
| Dimensions del producte | 3.2" de llargada x 1" d'amplada x 3.2" d'alçada (8.0 cm x 2.5 cm x 8.0 cm) |
| Mida del ventilador | 80 mm |
| Flux d'aire | 26 CFM (Peus cúbics per minut) |
| Nivell de soroll | 17 dBA (Decibels) |
| Coixinets | Pilota doble |
| Velocitat de rotació màxima | 2000 RPM |
| Tipus de connector d'alimentació | USB |
| Voltage | 7.2 Volts |
| Wattage | 1.1 watts |
| Material | Rubber (for feet) |
| UPC | 854759004327 |

Figure 7.1: Detailed dimensions and technical specifications of the fan.

Figura 7.2: Example of MULTIFAN S7 (similar to S1) used for cooling an AV receiver.
8. Garantia i Suport
For warranty information and customer support, please refer to the official AC Infinity weblloc web o contacteu directament amb el seu servei d'atenció al client. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.





