Download PDF for Print 11/25/2024

Assembled Centrifugal Belt-Drive Upblast Exhaust Ventilator

Item

Designed for use in restaurants, schools, commercial, and industrial applications to exhaust contaminated air from kitchen range hoods, up and away from the roof. Leakproof, spun aluminum construction features a fully rolled windband for increased stability.

  • Aluminum backward inclined, nonoverloading centrifugal wheel design
  • Maximum inlet air temperature: 300º F
  • NEMA 1 junction box located in motor enclosure
  • Optional NEMA 1 and 4 disconnects available
  • Regreaseable pillow block bearings
  • UL/cUL 705 Listed for Power Ventilators
  • UL/cUL 762 Listed for Restaurant Exhaust Appliances
  • Air handling quality bearings meet minimum of L10-100,000 hours
Item
ABCD
30 in35 3/8 in34 3/4 in21 in

Performance Characteristics
Item

Construction Features

Impeller Diameter (Typ.)21 1/4 in
Impeller TypeBackward Inclined Centrifugal
Impeller MaterialAluminum
Max Inlet Temp300 °F
Bearing TypeRegreaseable Pillow Block
Drive Package DescriptionDrives Assembled
Warranty Length1 Year

Motor Information

Motor Item Number4YU31
Voltage115/208-230
Hertz (Cycle)60 Hz
Motor Phase1
Motor EnclosureOpen Drip Proof
RPM1,725 rpm
Full Load Amps13.2/7.2-6.6

Other Components

ComponentDescriptionItem #
Fan DescriptionExhaust Fan—
BeltA27 (QTY: 1)6A139
Driver Sheave1VL40x5/83X264
Driven SheaveAL64x3/44RYR7

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'' SP
1 1/21.571100CFM6187599257985610542152175006477345293861
Sones23.023.023.022.021.021.020.019.819.318.6

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 sone levels.

Catalog 405, January 2010

Operating Range of Drive Package

Turns Open01/211 1/222 2/133 1/244 1/25
Approx. FRPM110010551026996966936907877847818

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 762
Agency Compliance
CSA Certified Motor