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Centrifugal Upblast Direct Drive Fans

Air Volume: 41 - 3489 CFM
Maximum SP :2.48" wg. standard air density

Features at a Glance
  • Completely enclosed drive compartment protects motor from airborne contaminants
  • Forced fresh air through the motor compartment cools motor and ensures long motor life
  • Variable Speed Control on Single Phase Units Only (VFDs required to adjust speed for 3 phase versions)
  • Non-overloading backward inclined wheels, blades and inlets fabricated from 3003-H14 aluminum
  • All sizes can be wall mounted
  • Quick release latches allow for easy access to motor compartment (Size 12 & larger)
  • Standard emergency disconnect switch (Size 12 & larger)

  • Gravity Damper (UL705 Only)
  • Motorized Damper (UL705 Only)
  • Wall Mount Sleeve
  • Roof Curb (Vented and Non-Vented)
  • Grease Collection Box (Size 12 & larger)
  • Bird Screen (UL705 Only)
  • Base Hinging Kit or Hinged Sub Base (for NFPA96 compliance)
  • Combination package that includes a supply fan mounted on the same roof curb

KTech certifies that Model DU10-HK thru DU85-HK shown herein are licensed to bear the AMCA seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and Publication 311, and comply with the requirements of the AMCA Certified Rating Program. Models DU10-HK thru DU85-HK are ETL Listed under file number 3049729-002 and comply with UL705 (electrical) Standards and CSA Std C22.2, No 113. Models DU12-HK thru DU85-HK are ETL Listed under file number 3049729-001 and comply with UL762 Standards.

Performance Data
DU10HK   Curve   Table
DU12HK   Curve   Table
DU25HK   Curve   Table
DU30HK   Curve   Table
DU33HK   Curve   Table
DU50HK   Curve   Table
DU75HK   Curve   Table
DU85HK   Curve   Table