Download PDF for Print 11/21/2024

Heavy-Duty Belt-Drive Exhaust Fan

Item

Designed for commercial and industrial applications requiring high volume of air at low to medium static pressures. Construction includes heavy-duty drive frame channels, bearing plate and motor plate. Propeller utilizes a six-blade heavy-duty cast aluminum design. Mount in vertical position for exhaust applications or horizontal position for supply applications.

  • Variable pitch adjustable motor pulley to optimize fan performance
  • Maximum inlet air temperature: 104º F
  • 6-Blade heavy-duty cast aluminum propellers
Item
ABCD
28 in18 in4 3/8 in1 1/4 in
EF
13 5/8 in24 3/8 in

Performance Characteristics

Item

Construction Features

Impeller Diameter (Typ.)24 in
Impeller TypePropeller
Impeller MaterialCast Aluminum
Max Inlet Temp104 °F
Bearing TypeRegreaseable Cast Pillow Block
Drive Package DescriptionDrives Packaged Separately
Warranty Length1 Year

Motor Information

Motor Item Number4K252
Voltage115/208-230
Hertz (Cycle)60 Hz
Motor Phase1
Motor EnclosureOpen Drip Proof
RPM1,725 rpm
Full Load Amps6.6/3.4-3.1

Other Components

ComponentDescriptionItem #
Fan DescriptionExhaust Fan1AHA8
Belt4L370 (QTY: 1)4L370
Driver Sheave1VP44125UHR9
Driven SheaveBK955UHF9
Driven BushingQT345UJA2

Air & Sound Performance

Motor HPMax BHPFan RPMCFM @0.000'' SP0.125'' SP0.250'' SP
1/30.38814CFM560848893679
Sones14.214.216.3

Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. 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 A: Free inlet hemispherical fan sone levels.

Catalog 405, January 2010

Operating Range of Drive Package

Turns Open01/211 1/222 2/133 1/244 1/25
Approx. FRPM814797777756736716696676656635

Agency Compliance

Dayton Electric Mfg. Co. certifies that the fans 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