Upblast fans have their motors located in which location relative to the airstream?

Upblast fans have their motors located in which location relative to the airstream?

• A. Inside the airstream
• B. Outside the airstream
• C. In a separate housing
• D. Not specified

Answer: (A)

Upblast fans are designed so the motor sits in the moving airstream, inside the fan housing that carries the exhaust. Placing the motor in the airstream lets the rushing air cool the motor as it operates and keeps the drive assembly compact and integrated with the fan itself. This arrangement is typical for upblast configurations, aligning the motor with the exhaust path rather than placing it in stagnant air or in a separate, external housing. When the motor would be outside the airstream or in a separate housing, cooling and protection from heat and contaminants become less effective for this setup, so those locations are not used for the standard upblast design.

Upblast fans are designed so the motor sits in the moving airstream, inside the fan housing that carries the exhaust. Placing the motor in the airstream lets the rushing air cool the motor as it operates and keeps the drive assembly compact and integrated with the fan itself. This arrangement is typical for upblast configurations, aligning the motor with the exhaust path rather than placing it in stagnant air or in a separate, external housing. When the motor would be outside the airstream or in a separate housing, cooling and protection from heat and contaminants become less effective for this setup, so those locations are not used for the standard upblast design.