Dayton 2RB64


Roof Vent, 115/230 V, CFM 2523, HP 1/2

2RB64 344555
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ItemCentrifugal Downblast Exhaust Ventilator
TypeStandard Duty
StyleAssembled with Drive Package
Wheel Dia. (In.)14-3/4
Wheel TypeBackward Incline
CFM @ 0.000-In. SP2523
CFM @ 0.125-In. SP2433
CFM @ 0.250-In. SP2347
CFM @ 0.375-In. SP2259
CFM @ 0.500-In. SP2166
CFM @ 0.675-In. SP2062
CFM @ 0.750-In. SP1943
CFM @ 0.875-In. SP1793
CFM @ 1.000-In. SP1602
Sones @ 0.125-In. SP @ 5 Ft.14.3
Sones @ 0.250-In. SP @ 5 Ft.13.9
Max. Inlet Temp. (Deg. F)180
Motor Voltage115/230
Motor Hz60
Max. Operating Amps7.2/3.6
Bearing TypeSealed Pillow Block
Motor HP1/2
Max. BHP0.53
Speed ControllableNo
Mounting LocationRoof
Base Width (In.)26
Base Length (In.)26
Base Height (In.)1-3/4
Overall Height (In.)25-3/8
Overall Dia. (In.)28-3/8
Shaft Dia. Wheel End (In.)3/4
Shaft Dia. Sheave End (In.)3/4
Housing MaterialSpun Aluminum
Wheel MaterialAluminum
Agency ComplianceUL/cUL 705
RequiresRoof Curb For New Installations
Includes NEMA 1 Junction Box
Adj. 12 3/8"H Roof Curb Stock No.2ZV83
Adj. 6 3/8"H Roof Curb Stock No.4C454
Recommended 12 In. Fixed Curb Item No.2RB77
Recommended 8 In. Fixed Curb Item No.4HX40
Recommended Damper Size (In.)19 x 19
Recommended Damper Stock No.4HX66
Weight 77.000000


Exhaust Ventilator, Centrifugal Belt Drive Downblast Assembled, Wheel Dia 14 3/4 In, CFM @ 0.000-In SP 2523, @ 0.250-In SP 2347, @ 0.500-In SP 2166, @ 0.750-In SP 1943, Sones @ 0.250-In SP 13.9, Max Inlet Temp 180 F, Motor Voltage 115/230, 1 Phase, Motor HP 1/2, 1360 RPM, Roof Mounting Location, Base Width 26 In, Base Length 26 In, Overall Height 25 3/8 In, Housing Material Spun Aluminum, Includes NEMA 1 Junction Box

Centrifugal Belt-Drive Downblast Exhaust Ventilators
  • Centrifugal Belt-Drive Downblast Exhaust Ventilators
  • Designed to meet the general clean air exhaust requirements for industrial and commercial buildings. Rugged and reliable construction makes fan capable of withstanding severe exhaust conditions. Spun aluminum construction 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. Drive frame is internally isolated from the rest of the unit through use of neoprene isolators for long life and quiet operation; no steel-to-steel contact. Motors, sheaves, and belts are packed separately when complete, unassembled ventilator with drive package is ordered.
  • UL and C-UL Listed.
  • Aluminum, backward-inclined, nonoverloading centrifugal wheel design NEMA 1 junction box located in motor enclosure Max. inlet air temp.: 180 F UL-705 Listed for Power Ventilators Air handling quality bearings meet min. L10-100,000 hr. Bearings units less motor and drive: sealed pillow block up to 16-3/4" wheel dia., regreasable pillow block for 18-1/2" wheel dia. and larger Bearings assembled units: sealed pillow block up to 18-1/2" wheel dia., regreasable pillow block for 21-1/2" wheel dia. and larger

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