Fantech FSD 20 Square Inline Fan 3424 CFM Single Phase

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Fantech

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Model

FSD 20

ID

36749

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Product Features
  • Made from Corrosion and heat-resistant housing
  • Built-in thermal overload protection with automatic reset
  • Versatile installation
  • Easy to install; no extra materials are required

OVERVIEW

The Fantech FSD Inline Duct Fan offers reliable, high-performance ventilation in a compact, square housing—perfect for tight duct runs. Built with rugged galvanized steel, a mixed-flow blade, and a sealed, low-maintenance motor, the FSD delivers efficient airflow up to 140 °F, low noise, and full speed-control compatibility. Ideal for residential and light commercial exhaust, airflow balancing, and duct booster applications.

Key Features

  • Heavy-gauge galvanized steel housing: Provides exceptional strength and corrosion resistance, ensuring long-lasting performance even in demanding commercial or industrial environments.
  • Mixed-flow impeller design: Combines the benefits of axial and centrifugal fans to deliver strong airflow and higher static pressure capability, ideal for long or complex duct runs.
  • Integrated external rotor motor with impeller assembly: Compact, efficient design allows superior heat dissipation for consistent operation and extended motor life.
  • Sealed ball bearings: Permanently lubricated and maintenance-free for quiet, reliable performance over years of use.
  • Built-in thermal overload protection: Automatically resets after cooling to prevent motor damage and ensure safe, continuous operation.
  • High-temperature rated: Designed to handle airstreams up to 140°F (60°C), suitable for warm exhaust or supply applications.
  • Fully speed controllable: Compatible with standard voltage or speed controllers, allowing fine adjustment of airflow to meet system demands.
  • Square housing with duct collars: Simplifies installation by connecting directly to square or rectangular ducts without the need for additional transitions or adapters.

Warranty Information

The Fantech Inline Duct Fans come with a 5-year limited warranty against defects in materials and workmanship. Fantech will repair or replace defective parts or products after verifying a valid claim.

Warranty Conditions
  • Proof of purchase is required for all warranty claims.
  • Customers must obtain a Return Material Authorization (RMA) before returning any product.
  • Returned items must be shipped prepaid and properly labeled with the RMA number.
Exclusions
  • Improper installation, wiring, or unauthorized repairs void the warranty.
  • Damage from misuse, abuse, or external factors such as accidents or weather is not covered.
  • Products with removed or altered serial labels are not eligible for warranty service.
Refer to the manufacturer's manual for full warranty details.

Durable Construction & Smart Design

The Fantech FSD Series consists of square inline mixed-flow duct fans designed to deliver moderate to high airflow with improved static pressure capabilities. Its housing is made of heavy-gauge galvanized steel, delivering structural integrity and corrosion resistance in typical HVAC environments. The impeller and motor are integrated as one unit (external rotor motor design) to help with heat dissipation and mechanical stability, thus extending the lifespan of the fan assembly. Its motor includes sealed ball bearings and automatic reset thermal overload protection, which guard against overheating and reduce maintenance demands. Because it is a direct-drive configuration, there are no belts or pulleys to adjust or replace, contributing to long-term reliability. Built for dependable performance in ducted systems, the FSD fan blends metal robustness with smart motor design to handle a wide range of ventilation needs while minimizing downtime and servicing.


Suitable Applications for Fantech FSD Inline Duct Fans

  • Commercial restrooms and bathrooms: Ideal for offices, malls, and schools to remove humidity and odors for fresher air.
  • Kitchens and food service areas: Clears smoke, steam, and grease-laden air in restaurants and cafeterias.
  • Duct booster use: Enhances airflow and pressure in long or complex HVAC systems for better efficiency.
  • Laboratory exhaust: Vents fumes and vapors in non-hazardous lab environments for safer air quality.
  • Utility and mechanical rooms: Prevents overheating and ensures proper ventilation for enclosed equipment.
  • Multi-family ventilation: Keeps corridors, laundry rooms, and shared spaces well-ventilated and fresh.
  • Fitness and locker rooms: Reduces humidity and odors for a more comfortable and clean environment.
More Information
Fantech FSD 20 Square Inline Fan 3424 CFM Single Phase
FeatureSpec
SKUFSD 20
Weight (in lbs)81
Brand/ManufacturerFantech
UPC650737132002
Drive TypeDirect
Maximum CFM3424
Motor RPM1563
Watt714
Electrical120/240 V, Single Phase
Amperage Requirement6.4
CertificationAMCA
Height20"
Width30"
Depth30"
Warranty5-year warranty
Resources
Safety InformationPROPOSITION 65 WARNING
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Customer Questions
What does "square inline" mean for the FSD fan?
It means the fan has a square or rectangular shape that fits directly into square or rectangular ductwork. This makes installation easier if your system already uses that type of duct instead of round ones.
If I change my duct layout later, can I still use the FSD fan?
Yes, you can. As long as the fan’s airflow and pressure match your new setup, you can reuse it without any problem. If you have any further questions, please don't hesitate to contact us. Thanks.
How energy efficient is the FSD fan?
The FSD fan is built to move a lot of air while using less power. It also supports speed control, so you can adjust how much energy it uses based on your needs.
Can the fan run all day without issues?
Yes, it’s designed for continuous operation. As long as the airflow is not blocked and the fan is installed correctly, it can safely run all day.
Does the fan come with wiring or a junction box?
Yes, it includes an external terminal box with easy-to-access wiring connections, making installation faster and more convenient.
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