Download PDF for Print 12/4/2024

Centrifugal Direct-Drive In-Line Duct Blower

Item

Designed for indoor clean air applications including intake, exhaust, return, or make-up air systems in industrial or commercial buildings. Rugged construction allows fan to be installed in ductwork either horizontally or vertically. Duct collars provide easy duct connections.

  • Aluminum backward inclined, nonoverloading centrifugal wheel design
  • NEMA 1 junction box included
  • Units are speed controllable
  • Maximum inlet air temperature: 104º F
  • UL/cUL 705 Listed for Power Ventilators
Item
ABCD
15 in16 in11 7/8 in1 in

Performance Characteristics
Item

Construction Features

Impeller Diameter (Typ.)11 in
Impeller TypeBackward Inclined Centrifugal
Impeller MaterialAluminum
Max Inlet Temp104 °F
Warranty Length1 Year

Motor Information

Motor Item Number21DV84
Voltage115
Hertz (Cycle)60 Hz
Motor Phase1
Motor EnclosureTotally Enclosed Air-Over
RPM
  • 1,550 rpm
  • 1,300 rpm
  • 1,050 rpm
Full Load Amps0.88/0.82/0.70

Air & Sound Performance
Motor HPMax BHPFan RPMCFM @0.000'' SP0.125'' SP0.250'' SP0.375'' SP0.500'' SP
1/120.021050CFM500369188——
Sones4.03.94.1——
1/120.041300CFM619519397245—
Sones5.45.45.55.6—
1/120.071550CFM738654564457334
Sones7.67.57.47.47.4

Performance certified is for installation type B: Free inlet, Ducted outlet. Performance ratings do not include the effects of appurtenances (accessories). The sound ratings shown are loudness values in fan sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type B: Free inlet hemispherical fan sone levels.

Agency Compliance

Dayton Electric Mfg. Co. certifies that the blowers 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 AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program.

AMCA Sound & Air
Agency Compliance
UL/cUL 705
Agency Compliance