What is an Arrangement 9 Fan?
Fan arrangements, based on AMCA standards, define the way a motor drives the fan, and how the motor mounts to the fan. An Arrangement 9 Fan is a belt-driven fan. In this arrangement, the motor mounts to the side of the fan pedestal with no unitary base required.
In general, a belt driven fan is connected to the fan’s motor via one or more belts, instead of directly connecting the motor to the fan shaft (that would be a direct drive fan). A few important benefits include:
- Variable Speed,
- Less Wear & Tear on the Motor
- Compact Footprint for Belt Drive
Components of an Arrangement 9 Fan
In order for an Arrangement 9 Fan to operate properly, it must include these parts:
- Motor
- V-Belt Drive
- Shaft
- Bearings
- Fan
- OSHA guards
Other Fan Arrangements:
- Belt Driven: Arrangement 1
- Direct Driven: Arrangement 4 or Arrangement 4V
- Belt Driven OR Direct Driven: Arrangements 3, 7, 8 and Plug
For an overview of all Fan Arrangements, visit Centrifugal Fans & Blowers.
Hear it from the Application Engineer
Senior Application Engineer Chet White outlines the key differences in this one-minute video.
When you’re ready to start your project, reach out and connect with one of our application engineers to discuss the details of your specification.
Related Content: More on Fan Arrangements
- Industrial Fans: Direct Drive or Belt Drive?
- Arrangement 1 Belt Drive Fans
- Arrangement 4 Direct Drive Fans
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