Dayton 4YC71


Exhaust Vent, 13 3/4 In

4YC71 51012
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ItemExhaust Ventilator
TypeCentrifugal Direct Drive Downblast
Wheel Dia. (In.)13-3/4
CFM @ 0.000-In. SP2448
CFM @ 0.125-In. SP2393
CFM @ 0.250-In. SP2338
CFM @ 0.375-In. SP2281
CFM @ 0.500-In. SP2220
CFM @ 0.625-In. SP2159
CFM @ 0.750-In. SP2089
CFM @ 0.875-In. SP2018
CFM @ 1.000-In. SP1935
CFM @ 1.250-In. SP1746
CFM @ 1.500-In. SP1474
Sones @ 0.125-In. SP @ 5 Ft.17.0
Sones @ 0.250-In. SP @ 5 Ft.16.7
Motor Voltage115/230
Max. Operating Amps6.0/3.0
Motor HP1/2
Max. BHP0.60
Base Width (In.)22
Base Length (In.)22
Base Height (In.)1-3/4
Overall Dia. (In.)28-3/8
Overall Height (In.)23-3/4
Shaft Dia. Wheel End (In.)1/2
Mounting LocationRoof
Max. Inlet Temp. (Deg. F)130
Housing MaterialSpun Aluminum
Wheel MaterialAluminum
Wheel TypeBackward Incline
Speed Control1DGV3
Speed ControllableYes
Agency ComplianceUL/cUL 705
RequiresCurb For New Installations
Includes NEMA 1 Junction Box
Adj. 12 3/8"H Roof Curb Stock No.2ZV82
Adj. 6 3/8"H Roof Curb Stock No.4C453
Recommended 12 In. Fixed Curb Item No.2RB76
Recommended 8 In. Fixed Curb Item No.4HX39
Recommended Damper Size (In.)15 x 15
Recommended Damper Stock No.4HX65
Weight 53.000000


Centrifugal Exhaust Ventilator, Direct Drive Downblast, CFM @ 0.000-In SP 2448, @ 0.250-In SP 2338, 16.7 Sones @ 0.250-In SP, Roof Mounting Location, Base Width 22 In, Base Length 22 In, Max Inlet Temp 130 F, Motor Voltage 115/230, 1 Phase, Motor 1/2 HP, Wheel Dia 13 3/4 In, Housing Material Spun Aluminum, Speed Controllable, General Purpose Application, Includes NEMA 1 Junction Box

  • Note: 8" models cannot be used with dampers or shutters.

Centrifugal Direct-Drive Downblast Exhaust Ventilators
  • For use in general clean air environments Aluminum backward-inclined, nonoverloading centrifugal wheel design Fully rolled windband bead for increased stability Motor compartment is isolated from the air stream and is cooled by outside air NEMA 1 junction box located in motor enclosure Max. inlet air temp.: 130 F UL-705 Listed for Power Ventilators
  • 1-Speed
  • Ventilators have single-speed motors which are fully speed controllable at 115V and feature Class B insulation.

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