Download PDF for Print 11/23/2024

Assembled Centrifugal Belt-Drive Downblast Exhaust Ventilator

Item

Designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Features a fully rolled windband bead for increased stability and easy transport. Fresh outside air is drawn in under the motor cover to maximize motor life.

  • Aluminum backward inclined, nonoverloading centrifugal wheel design
  • Maximum inlet air temperature: 180º F
  • NEMA 1 junction box located in motor enclosure
  • Optional NEMA 1 and 4 disconnects available
  • Regreaseable pillow block bearings
  • Air handling quality bearings meet minimum of L10-100,000 hours
  • UL/cUL 705 Listed for Power Ventilators
Item
ABCD
34 in42 3/4 in38 3/8 in5 3/4 in

Performance Characteristics
Item

Construction Features

Impeller Diameter (Typ.)24 1/2 in
Impeller TypeBackward Inclined Centrifugal
Impeller MaterialAluminum
Max Inlet Temp180 °F
Bearing TypeRegreaseable Pillow Block
Drive Package DescriptionDrives Assembled
Warranty Length1 Year

Motor Information

Motor Item Number4YU40
Voltage208-230/460
Hertz (Cycle)60 Hz
Motor Phase3
Motor EnclosureOpen Drip Proof
RPM1,725 rpm
Full Load Amps6.2-6.2/3.1

Other Components

ComponentDescriptionItem #
Fan DescriptionExhaust Fan—
BeltAX31 (QTY: 1)6A116
Driver Sheave1VL40x5/83X264
Driven SheaveAL74x14RYT2
Driven BushingH x 13X576

Air & Sound Performance
Motor HPMax BHPFan RPMCFM @0.000'' SP0.125'' SP0.250'' SP0.375'' SP0.500'' SP0.625'' SP0.750'' SP0.875'' SP1.000'' SP1.250'' SP1.500'' SP
22.06910CFM83558135791677007467721569336616624053883707
Sones24.023.021.021.021.020.019.619.419.216.713.6

Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects of a birdscreen in the airstream. 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 sone levels.

Catalog 405, January 2010

Operating Range of Drive Package

Turns Open01/211 1/222 2/133 1/244 1/25
Approx. FRPM886866847828808789770750731712

Agency Compliance

Dayton Electric Mfg. Co. certifies that the ventilators 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
CSA Certified Motor