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Duct Size	4 in.
Total Airflow	205 CFM
Total Noise	28 dBA

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AC INFINITY CLOUDLINE INLINE DUCT FANS

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, and all necessary mounting hardware.

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.

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.

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.

Features:

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

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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)	PDF
RoHS Cert. (Whole Product)	PDF
Product Manual
Product Manual	PDF

AC Infinity - CLOUDLINE S4 - Quiet 4” Inline Duct Fan with Speed Controller - Ventilation Exhaust Fan