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Dayton 20 inch exhaust fan with aluminum blades and galvanized steel frame

Dayton

Dayton 10D977 20 in Exhaust Fan 208-230/460V

SKU CH-HJQD-A01FW

20-inch commercial direct-drive exhaust fan moves 452 cfm at 14.9 sones on 208-230/460V power

  • typeCommercial Direct Drive
  • Direct-drive motor reduces maintenance needs
  • 20-inch aluminum blades deliver 452 cfm exhaust airflow
  • 208-230/460 V three-phase power suits commercial wiring
  • Steel frame with galvanized finish resists corrosion
  • 9 sone rating indicates audible operating noise

Commercial Direct Drive Exhaust Fan

The Dayton 10D977 is a commercial direct-drive exhaust fan built for industrial and agricultural ventilation. It moves 452 cfm of air at zero static pressure through a 20 inch aluminum blade. The unit operates on 208 to 230 or 460 volt three-phase power.

Aluminum Blade and Galvanized Frame

The aluminum blade resists corrosion in humid or chemical environments while the galvanized steel frame adds structural rigidity. No guard is included, so the installer must provide appropriate protection where personnel access the airflow path. The open design simplifies cleaning and reduces airflow restriction.

High Noise Output and Fixed Mounting

At 14.9 sones the fan produces a loud operating sound suited to unoccupied or high-background-noise areas. The lack of a guard and the fixed frame imply permanent wall or shutter mounting rather than portable use. Installers must ensure the electrical supply matches the dual-voltage motor nameplate.

Highlights

  • Direct-drive motor reduces maintenance needs
  • 20-inch aluminum blades deliver 452 cfm exhaust airflow
  • 208-230/460 V three-phase power suits commercial wiring
  • Steel frame with galvanized finish resists corrosion
  • 9 sone rating indicates audible operating noise

Specifications

BrandDayton
typeCommercial Direct Drive

Questions about this item

How often will the direct-drive motor on this 20 in Dayton exhaust fan need servicing?

The direct-drive design has no belts or pulleys to adjust, so routine maintenance is limited to keeping the aluminum blades and steel frame clean.

What is the maximum airflow this 208-230/460 V unit can sustain before hitting its static-pressure limit?

At 0.000 in SP the fan moves 452 cfm; any resistance in the duct run will reduce that figure.

How loud is the 14.9 sone rating when the fan runs continuously in a commercial kitchen?

14.9 sones is clearly audible — similar to a busy office — so plan for background noise if the fan operates all day.

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