AC Infinity Cloudline Pro S4 | 4 Inch Inline EC Fan

Name: AC Infinity Cloudline Pro S4 | 4 Inch Inline EC Fan
Brand: AC Infinity
SKU: ACI-100-S4
Price: 81.99 GBP
Availability: InStock

£81.99

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Premium Whisper-Quiet Ventilation with Advanced Speed Tuning
Optimise your indoor cultivation climate with the high-performance AC Infinity Cloudline Pro S4. Engineered for growers who require an ideal balance of quiet operation, power, and precise environmental control, this 4-inch inline duct fan system sets the industry standard for enclosed ventilation. Delivering a highly capable 205 CFM airflow at a whisper-quiet noise rating of just 28 dBA, it easily handles heat extraction, odour scrubbing, and stale air distribution.

The heart of the Cloudline Pro S4 features a cutting-edge, PWM-controlled EC motor that delivers outstanding energy efficiency and ultra-smooth performance at low RPMs without creating irritating motor hums. Its advanced mixed-flow design maintains high static pressure levels, ensuring maximum airflow even when pushing through restrictive carbon filters or long runs of ducting. Built for longevity in humid grow environments, the IP44-rated dust and splash-resistant housing houses dual ball bearings rated for 67,000 hours of continuous runtime.

How to Use the Cloudline Pro S4 4-Inch Fan System

Follow these straightforward steps to safely mount, connect, and configure your advanced ventilation system.

1. Orient and Mount the Fan

Identify the airflow direction by looking at the directional arrow embossed on the plastic fan body.
Secure the lightweight mounting base horizontally or vertically to your grow room frames, walls, or ceiling supports using the included hardware.
Tip: Because it utilizes dual ball bearings, you can safely install this fan in any angle or orientation without increasing wear.

2. Connect Your Ducting and Carbon Filter

Slide your standard 4-inch flexible ducting or a matching 4-inch carbon air filter directly over the fan’s intake or exhaust flanges.
Tighten the connections securely using metal worm clamps to eliminate air leaks and guarantee unscrubbed odours cannot escape into your workspace.

3. Power On and Set Fan Speeds

Plug the inline fan's main power supply adapter into a standard mains wall outlet.
Connect the included wired 10-speed controller to the fan housing to easily adjust your airflow across ten precise ventilation increments.
The controller features built-in backup memory, meaning it will automatically resume your last speed setting if power is temporarily disconnected.

4. Smart Automation Connectivity

To unlock advanced climate scheduling and automation triggers, disconnect the basic speed controller.
Plug the Cloudline Pro S4 directly into a central smart ecosystem controller using a compatible data wire.
Once linked, you can automate the fan to dynamically increase or decrease its speed based on real-time temperature, humidity, or VPD thresholds.

Care and Easy Maintenance Tips

Tool-Free Motor Removal: Cleaning dust and debris off your fan blades is simple. Unclip the central motor box from the mounting flanges to slide out the impeller housing for effortless dusting between harvest cycles.
Electrical Moisture Safety: While the IP44 rating handles high-humidity grow environments, ensure the inline connection pins and power supply blocks remain dry and clear of direct water runoff.

Technical Specifications & Engineering Data

Specification Parameter	Engineering Data Value
Duct Connection Size	4 Inches (100 mm)
Total Airflow Capacity	205 CFM (348 m³/h)
Acoustic Noise Output	28 dBA
Maximum Impeller Speed	2800 RPM
Static Pressure Rating	324 Pa
Motor Type Architecture	PWM Controlled EC (Electronically Commutated)
Maximum Power Draw	30 Watts
Average Power Consumption	18 Watts
Current Draw	0.52 A
Ingress Protection Rating	IP-44 (Dust and Splash Resistant)
Bearing Assembly Type	Dual Ball Bearings
Expected Lifespan (L10)	67,000 Hours Continuous Operating Time
Voltage / Frequency	100V - 240V AC / 50-60Hz
Operating Climate Range	0°C to 60°C (32°F to 140°F) / 35% to 85% RH
Fan Unit Dimensions	19.0 x 30.2 x 17.6 cm (7.48 x 11.89 x 6.93 in)
Mounting Base Material	Vibration-Dampening Polycarbonate
Controller Interconnect	Universal Intelligent System (UIS) via Native Type-C Molex Interface