Dayton 7YR27


Roof Vent, 21 1/4 In, w/ 3 HP Drive Pkg

7YR27 442674
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ItemCentrifugal Upblast Exhaust Ventilator
TypeStandard Duty, High Pressure
StyleUnassembled With Drive Package
Wheel Dia. (In.)21-1/4
Wheel TypeBackward Incline
CFM @ 0.500-In. SP5943
CFM @ 0.675-In. SP5859
CFM @ 0.750-In. SP5775
CFM @ 0.875-In. SP5679
CFM @ 1.000-In. SP5581
CFM @ 1.250-In. SP5385
CFM @ 1.500-In. SP5182
CFM @ 1.75-In. SP4971
CFM @ 2.000-In. SP4760
CFM @ 2.250-In. SP4476
CFM @ 2.500-In. SP4189
CFM @ 2.75-In. SP3760
Sones @ 0.500-In. SP @ 5 Ft.29
Max. Inlet Temp. (Deg. F)300
Motor Voltage208-230/460
Motor Hz60
Bearing TypeRegreasable Pillow Block
Motor HP3
Max. BHP3.13
Speed ControllableNO
Mounting LocationRoof
Base Width (In.)30
Base Length (In.)30
Base Height (In.)1-3/4
Overall Height (In.)30-3/8
Overall Dia. (In.)35-3/8
Shaft Dia. Wheel End (In.)1
Shaft Dia. Sheave End (In.)1
Housing MaterialSpun Aluminum
Wheel MaterialAluminum
Agency ComplianceUL/cUL 705/762
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.2RB79
Recommended 8 In. Fixed Curb Item No.4HX41
Fixed UL 762 Kitchen Roof Curb Stock No.4HX57
Adj. UL 762 Kitchen Roof Curb Stock No.4HX62
Recommended Damper Size (In.)23 x 23
Recommended Damper Stock No.4HX67
Weight 186.900000


Exhaust Ventilator, High Presure, Centrifugal Upblast, With Drive Package, Wheel Dia. 21 1/4 In., CFM @ 0.500-In SP 5943, Sones @ 0.500-In SP @ 5 Ft 29, Max Inlet Temp 300 Deg F, Motor Voltage 208-230/460, 60 Motor Hz, 3 Phase, Motor HP 3, Roof Mounting Location, Base Width 30 In, Base Length 30 In, Overall Height 30 3/8 In, Housing Material Spun Aluminum, Requires Roof Curb For New Installations, Includes NEMA 1 Junction Box

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