Dayton 4HZ34


Exhaust Vent, 8 1/4 In

4HZ34 50489
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ItemExhaust Ventilator
TypeCentrifugal Sidewall Direct Drive, 3 Speed
Wheel Dia. (In.)8-1/4
CFM @ 0.000-In. SP266/223/180
CFM @ 0.125-In. SP222/170/109
CFM @ 0.250-In. SP172/97/-
CFM @ 0.375-In. SP95/-/-
Sones @ 0.250-In. SP @ 5 Ft.4.1/2.9/-
Motor Voltage115
Max. Operating Amps1.30/0.92/0.68
Motor HP1/30
Max. BHP0.03
Base Width (In.)14 3/4 Dia
Base Length (In.)14 3/4 Dia
Base Height (In.)1-3/4
Overall Dia. (In.)18-3/8
Overall Height (In.)15-1/4
Shaft Dia. Wheel End (In.)5/16
Mounting LocationWall
Max. Inlet Temp. (Deg. F)130
Housing MaterialSpun Aluminum
Wheel MaterialAluminum
Wheel TypeBackward Incline
Speed Control1DGV1
Speed Controllableat 115 Volt Only
Agency ComplianceUL/cUL 705
Includes NEMA 1 Junction Box
Recommended Damper Size (In.)8 x 8
Recommended Damper Stock No.4HX72
UPC 094700504890
Weight 23.900000


Exhaust Ventilator, Centrifugal Sidewall Direct Drive, 3 Speed CFM @ 0.000-In SP 266/233/180, @ 0.250-In SP 172/97/-, 4.1/2.9/- Sones @ 0.250-In SP, Wall Mounting Location, Base Width 14 3/4 Dia In, Base Length 14 3/4 Dia In, Max Inlet Temp 130 F, Motor Voltage 115, 1 Phase, Motor HP 1/30, 1550/1300/1050 RPM, Wheel Dia 8 1/4 In, Speed Controllable Except For Kitchen Applications, Includes NEMA 1 Junction Box

  • Note: Speed controllers available for 115V units only. For kitchen application, check with local code authorities for minimum duct velocities. Do not use dampers in any kitchen application. NFPA 96.

Centrifugal Direct-Drive Upblast Exhaust Ventilators
  • 3-Speed
  • For general clean air with inlet air temps. below 130 F. 3 specific RPMs; speed controllable on any RPM providing 30% useable turndown. UL 705 Listed for Power Ventilators.
  • Aluminum, backward-inclined wheel 1-piece rolled aluminum windband fully welded to base Motor, drive frame, and blower wheel are isolated from mounting base Motor compartment is isolated from contaminated air NEMA 1 junction box in motor enclosure (Hazardous units have NEMA 7 & 9 disconnect switch) UL and C-UL Listed (Motor only UL Listed for Class I Groups C & D, and Class II Groups F & G for hazardous location units)

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