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Item Details - 2RB53

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Alert This item has been discontinued and cannot be ordered online.

DaytonCentrifugal Direct-Drive Downblast Exhaust Ventilator

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: 130º F
  • NEMA 1 junction box located in motor enclosure
  • Optional NEMA 1 and 4 disconnects available
  • UL/cUL 705 Listed for Power Ventilators

Agency Compliance

Performance

Motor HPMax BHPFan RPMCFM @
0.000'' SP0.125'' SP0.250'' SP0.375'' SP0.500'' SP0.625'' SP
1/20
0.02
1050
CFM
Sones
1/20
0.04
1300
CFM
Sones
1/20
0.06
1550
CFM
Sones
0.000'' SP0.125'' SP0.250'' SP0.375'' SP0.500'' SP0.625'' SP
398307179———
4.03.94.3———
493420340233——
5.55.35.35.5——
588528464394308168
7.67.47.47.47.68.1
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.

Performance certified is for installation type A: Free inlet, Free outlet. 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 fan sone levels.

Catalog 405, January 2010

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Product Specifications (Glossary)

Agency Compliance [?]
  • UL/cUL 705
  • AMCA Sound & Air
  • CSA Certified Motor
Assembled [?]TRUE
Base Height [?]1 3/4 in
CFM [?]588 to 168 ft3/min
Curb Cap Size [?]19 in
Drive Type [?]Direct Drive
Fan DescriptionExhaust Fan
Full Load Amps [?]2.0/1.6/1.3
Height [?]14 5/8 in
Hertz (Cycle) [?]60 Hz
Horsepower (Typ.) [?] 1/20 hp
Housing Material [?]Spun Aluminum
Impeller Diameter (Nom.) [?]8 in
Impeller Material [?]Aluminum
Impeller Type [?]Backward Inclined Centrifugal
Includes [?]NEMA 1 Junction Box
Max Inlet Temp [?]130 °F
Model DescriptionCentrifugal Direct-Drive Downblast Exhaust Ventilator
Motor Enclosure [?]Open Air-Over
Motor IncludedYes
Motor Insulation [?]A
Motor Phase [?]1
Motor Type [?]Shaded Pole
Mounting Location [?]Roof
Motor Nominal Efficiency34 %
Overall Diameter [?]21 3/4 in
Required Accessory [?]Roof Curb For New Installation
Roof Opening Width x Roof Opening Length [?]14 1/2 x 14 1/2 in
Shaft Diameter [?] 1/2 in
Speed Controllable [?]Yes
TypeCentrifugal Direct-Drive Downblast, 3-Speed
Voltage [?]115
Warranty Length [?]1 Year

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