Introduction
The AC Infinity MULTIFAN S7 is an ultra-quiet, UL-certified dual 120mm USB fan system engineered to provide efficient cooling for various electronics and components. This manual provides essential information for the proper setup, operation, and maintenance of your fan system, ensuring optimal performance and longevity.
Safety Information
- Ensure the fan is connected to a compatible USB power source (5V DC).
- Do not expose the fan to water or excessive moisture.
- Keep fingers and other objects away from the fan blades during operation.
- Do not attempt to disassemble or modify the fan unit.
- Place the fan on a stable surface or mount securely to prevent accidental falls.
Package Contents
Verify that all items listed below are included in your package:
- AC Infinity MULTIFAN S7 Dual 120mm USB Fan Unit
- Multi-speed Controller with USB plug
- Rubber Feet (pre-installed or separate)
- User Manual (this document)
Image: The AC Infinity MULTIFAN S7 dual 120mm USB fan unit, showing both fans connected to the speed controller and USB cable.
Setup
Follow these steps to set up your MULTIFAN S7:
- Positioning: Place the fan unit in the desired location. The dual-ball bearings allow the fans to be laid flat or stand upright. Ensure adequate clearance for airflow.
- Rubber Feet: If not pre-installed, attach the included rubber feet to the corners of the fan unit. These feet absorb vibration and reduce noise.
- Connect Power: Plug the USB connector from the multi-speed controller into an available USB port on your electronic device (e.g., receiver, DVR, game console, computer) or a standard USB wall adapter (not included).
- Daisy-Chain (Optional): If you have additional MULTIFAN units, they can be daisy-chained together using the provided USB pass-through port on the controller.
Image: Two MULTIFAN S7 units positioned on top of an AV receiver within a cabinet, demonstrating a typical installation scenario.
Operating Instructions
The MULTIFAN S7 features a multi-speed controller to adjust fan speed and airflow.
- Power On/Off: Use the switch on the multi-speed controller to turn the fan system on or off.
- Adjust Fan Speed: Slide the switch on the controller to select your desired fan speed:
- Low Speed: For minimal noise and gentle airflow.
- Medium Speed: Suitable for most applications, balancing noise and airflow.
- High Speed: For maximum airflow and cooling performance.
- Optimal Placement: For best results, position the fans to either draw hot air out of an enclosure or push cool air into it, depending on your cooling needs.
Image: A detailed view of the multi-speed controller, highlighting the 'H', 'M', 'L', and 'O' settings for fan speed adjustment.
Maintenance
Regular maintenance helps ensure the longevity and efficiency of your fan system.
- Cleaning: Periodically clean the fan blades and grilles using a soft, dry cloth or compressed air to remove dust buildup. Ensure the fan is powered off before cleaning.
- Inspection: Check the power cable and fan blades for any signs of damage. If damage is found, discontinue use and contact customer support.
- Anti-Vibration Feet: The silicone anti-vibration feet can be detached if a lower profile is desired for certain installations.
Image: A close-up of the fan unit, illustrating the silicone anti-vibration feet designed to minimize noise and surface friction.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan does not turn on. | No power to USB port or controller switch is off. | Ensure USB power source is active. Check controller switch position. |
| Fan is noisy. | Fan speed set too high, or dust buildup. | Reduce fan speed using the controller. Clean fan blades and grilles. |
| Insufficient airflow. | Fan speed too low, or obstruction. | Increase fan speed. Ensure no objects are blocking airflow. |
Specifications
| Feature | Detail |
|---|---|
| Model | AI-MPF120A2 (MULTIFAN S7) |
| Fan Dimensions (per fan) | 4.7 x 4.7 x 1 inches (12.0 x 12.0 x 2.5 cm) |
| Total Airflow | 104 CFM |
| Total Noise | 19 dBA |
| Bearings | Dual Ball |
| Power Connector Type | USB |
| Voltage | 5 Volts |
| Wattage | 5 watts |
| Maximum Rotational Speed | 1300 RPM |
| Material | Rubber (for feet) |
| Item Weight | 1.41 pounds |
Image: Technical specifications and dimensions of the MULTIFAN S7, including fan size and cable lengths.
Warranty and Support
AC Infinity products are designed for durability and performance. For warranty information, technical support, or to inquire about replacement parts, please visit the official AC Infinity website or contact their customer service directly. Keep your purchase receipt for warranty claims.
