5 out of 5
AC Infinity CLOUDLINE S4, Quiet Inline Duct Fan System with Speed Controller, 4-Inch
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Product Description
- Designed to quietly ventilate grow tents, transfer heating/cooling to rooms, circulate fresh air, and cool AV closets.
- Features an 8-speed manual controller utilizing PWM. See T-Series for temperature and humidity controls.
- Mixed flow design combined with a PWM-controlled EC-motor for a truly quiet and energy efficient performance.
- Kit also includes corded AC power adapter, installation manual, and all necessary mounting hardware.
- Duct Size: 4” | Dimensions: 6.9 x 11.9 x 7.4 in. | Airflow: 205 CFM | Noise: 28 dBA | Bearings: Dual Ball
Product Description
The duct fan system is designed to quietly cool AV equipment rooms and closets, and to ventilate various air circulation and exhaust projects. Features an inline speed controller utilizing PWM-technology. Containing an inline mixed-flow design, the duct fan can maintain airflow even in high static pressure applications. Contains an EC-motor for a quiet and energy efficient performance. The motor box containing the fan’s impeller and blades can be detached from the mounted frame for easy cleaning and maintenance. Complete kit includes one duct fan unit, one inline speed controller, installation manual, all necessary mounting hardware, and all necessary mounting hardware.
Precise Speed Controller
The inline speed controller enables you to set the duct fan’s speed to optimal noise and airflow levels for various environments. Unlike common AC-powered duct fans that suppresses voltage to control fan speeds, this duct fan features an EC-motor that is precisely controlled using PWM (Pulse Width Modulation). This technology enables the fan's motor to be able to run smoothly at extremely low RPM speeds without generating motor noises and heat as seen on variable voltage controllers. Eight speed options are available with power switch, and backup memory. This S4 model can be connected to the smart controller of the CLOUDLINE T4 to share the same programming and power source.
Quiet and Energy Efficient Design
The inline fan features a mixed flow design using a stator blade and dual hydrodynamic wind circles. This gives it a high static pressure rating, enabling it to deliver airflow even in applications where air movement is being restricted. The motor houses dual ball bearings rated at 67,000 hours which allows the duct fan unit to be mounted in any direction. The unit is IP44 rated to be highly resistant to dust and liquids, and performs well even in harsh environments.
Applications
This quiet duct fan system is popular in a variety of applications including cooling AV equipment rooms, closets, racks, and cabinets. Due to its low noise and advanced control features, it’s also used in various air circulation and ventilation projects including hydroponic grow rooms and tents, exhausting bathrooms and attics, and other installations.
| Product Identification | |
| Manufacturer | AC Infinity Inc. |
| Product Name | CLOUDLINE S4 |
| Product Model | AI-CLS4 |
| UPC Code | 854759004785 |
| Product and Mounting Dimensions - Fan Unit | |
| Duct Size | 4" |
| Total Dimensions | 7.40 x 11.93 x 6.93 in. (18.8 x 30.3 x 17.6 cm) |
| Mounting Hole-To-Hole Distance | 3.15 X 2.36 in. (8.0 x 6.0 cm) |
| Screw Hole Size | Ø 0.197 in. (Ø 0.5 cm) |
| Cord Length to Controller | 240 in. (20 feet) |
| Product and Mounting Dimensions - Controller | |
| Total Dimensions | 3.34 x 2.95 x 0.51 in. (8.5 x 3.6 x 1.3 cm) |
| Required Mounting Area | 2.95 x 0.51 in. (3.6 x 1.3 cm) |
| Hole to Hole Distance | 2.87in. (7.3 cm) |
| Screw Hole Size | Ø 0.157 in. (Ø 0.4 cm) |
| Cord Length to Plug | 96 in. (8 feet) |
| Product Performance and Technical Specs | |
| Total Airflow | 205 CFM |
| Total Noise | 28 dBA |
| Max Speed | 2800 RPM |
| Static Pressure | 223 Pa |
| Voltage | 100-240V AC | Frequency | 50/60Hz |
| Max Power Draw | 28 W |
| Average Power Usage | 21 W |
| Current | 1.2 A |
| Power Connector Type | US Plug (NEMA 1-15 Type-A) |
| Operating Humidity | 35 to 85% RH |
| Operating Temperature | 0 to 140°F |
| Ingress Protection | IP 44 |
| Fan Bearings | Dual Ball |
| Mounting Positions | Horizontal or Vertical |
| L10 Life Expectancy | 67,000 Hours |
| Fan Quality Approvals | CE, RoHS |
| CE Certification (Whole Product) | |
| RoHS Cert. (Whole Product) | |
| Product Manual | |
| Product Manual |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
By William A
Date: August 15, 2023
Used this blower to vent toxic soldering smoke to the outside. It's very quiet at my soldering station. Should have done this years ago.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By joseph bailey
Date: August 09, 2023
Preforms as advertised ,very smooth operation .WINNER!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By RMN
Date: August 05, 2023
Been running this pretty much non-stop for 4 years. It's quiet and powerful! Wish the remote was wireless. (Presuming the newer models aren't already) again my purchase was about 4 years ago. When/if it burns out, I'll definitely consider buying again!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Kevin
Date: July 20, 2023
I love the AC Infinity inline fans. I highly recommend them and all AC Infinity products. I'm not saying they are the best as I haven't tried them all but the value for the money is sky high.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Charles
Date: July 11, 2023
This unit falls directly in the adjustable range I was looking for, in order to be able to dial in enough movement yet keep sound level low. I'm using it to keep negative air pressure in a small bathroom with a cat litter box, and running it out alongside the dryer vent. Can't smell it/Can't hear it. So far so gooood!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By FrankC
Date: July 01, 2023
Great fan to Improve air flow for clothes dryer vent. Improves airflow for long underground lines and prevents condensation dripping from dryer in humid climates. Reduces connection difficulties in tight laundry rooms by allowing for a longer hose to be used. This allows you to pull the dryer out and keep the hose connected. No more breaking your back to reach down to connect the vent pipe.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]