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Rectangular steel OEM blower, direct drive, assembled, forward-curved wheel

Dayton

Dayton 1TDN9 Rectangular OEM Blower 2950 RPM 1 Phase Direct Drive Steel High Temperature Ceiling Fan

SKU CH-1QNC-FQVVF

Rectangular OEM blower delivering up to 75 cfm airflow at 2950 RPM with direct-drive steel construction for high-temperature ceiling installations

  • typeHigh Temperature
  • Delivers 75 cfm airflow at zero static pressure
  • Maintains 72 cfm at 0.100 in SP for ducted runs
  • Provides 62 cfm at 0.250 in SP under load
  • Still moves 56 cfm at 0.400 in SP resistance
  • Direct-drive motor runs at 2950 RPM for reliable output

Dayton 1TDN9 Rectangular OEM Blower

The Dayton 1TDN9 is a rectangular OEM blower designed for high-temperature environments. It operates at 2950 RPM using a single-phase direct-drive motor housed in a steel assembly. This unit suits installers needing a pre-assembled forward-curved wheel blower for ducted airflow applications.

Upgrade from lower-static blowers

The blower delivers 75 cfm at 0.000 in SP and maintains 72 cfm at 0.100 in SP, dropping to 62 cfm at 0.250 in SP and 56 cfm at 0.400 in SP. At 0.500 in SP it still moves 44 cfm. The jump is worth it when existing equipment cannot sustain airflow against rising static pressure in the ductwork.

Check voltage phase and mounting space

Verify the supply is single-phase and that the rectangular housing fits the intended enclosure. Confirm the forward-curved wheel orientation matches the required airflow direction. Ensure the operating temperature range of the installation matches the high-temperature rating of this assembled unit.

Highlights

  • Delivers 75 cfm airflow at zero static pressure
  • Maintains 72 cfm at 0.100 in SP for ducted runs
  • Provides 62 cfm at 0.250 in SP under load
  • Still moves 56 cfm at 0.400 in SP resistance
  • Direct-drive motor runs at 2950 RPM for reliable output

Specifications

BrandDayton
typeHigh Temperature

Questions about this item

What are the mounting dimensions for the 2 7/8 in wheel on this Dayton 1TDN9 blower?

The blower uses a forward-curved wheel with a 2 7/8 in diameter; the housing is rectangular and ships fully assembled, so you mount the unit by its integral flanges — check the cabinet opening matches the housing outline before ordering.

How do I wire the single-phase direct-drive motor, and what step is commonly missed?

Connect the motor leads to a single-phase supply matching the nameplate voltage, then secure the ground screw; the step often missed is verifying the wheel rotates freely by hand before energising the circuit.

What maintenance will the steel high-temperature blower need over time?

Periodically clean dust from the 2 7/8 in forward-curved wheel and motor vents to maintain airflow — at 0.500 in SP the unit delivers 44 cfm, so restricted intake reduces output — and inspect the direct-drive shaft for bearing noise annually.

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