Item - Roof Ventilators
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Downblast Ventilator
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Drive Package With Motor Included
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Yes
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Duty Rating - Roof Ventilators
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Standard
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Drive Type - Roof Ventilators
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Direct Drive
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Mounting Location - Roof Ventilators
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Roof
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Number of Speeds
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1
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Voltage - Roof Ventilators
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115V AC
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Motor HP - Roof Ventilators
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1/3 hp
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CFM @ 0.000-In. SP
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2093
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Hz
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60
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Assembled/Unassembled
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Assembled
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Motor Voltage
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115
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Adj. 6 3/8"H Roof Curb Stock No.
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4c453
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Includes
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NEMA 1 Junction Box
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Item
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Centrifugal Downblast Roof Exhaust Fan
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Max. Inlet Temp.
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130 Degrees
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Mounting Location
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Roof
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CFM @ 0.250-In. SP
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1984
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Max. BHP
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0.5
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CFM @ 0.500-In. SP
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1871
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Phase
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1
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Motor HP
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1/3
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Sones @ 0.125-In. SP @ 5 Ft.
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17.2
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Adj. 12 3/8"H Roof Curb Stock No.
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2ZV82
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Speed Control
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48C172
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Speed Controllable
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Variable Speed
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Agency Compliance
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AMCA Sound & Air, CSA Certified Motor, UL/cUL 705
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CFM @ 0.125-In. SP
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2038
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CFM @ 0.875-In. SP
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1673
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CFM @ 0.625-In. SP
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1810
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Wheel Type
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Backward Inclined
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CFM @ 0.375-In. SP
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1928
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Recommended 8 In. Fixed Curb Item No.
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4HX39
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Recommended 12 In. Fixed Curb Item No.
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2RB76
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Max. Operating Amps
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6
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CFM @ 1.500-In. SP
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1180
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CFM @ 0.750-In. SP
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1743
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Housing Material
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Aluminum
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Sones @ 0.250-In. SP @ 5 Ft.
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17.0
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CFM @ 1.250-In. SP
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1426
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RPM
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1725
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Drive Package Included
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Yes
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CFM @ 1.000-In. SP
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1600
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Drive Type
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Direct Drive
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Wheel Material
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Aluminum
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Standards
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AMCA Sound and Air, CSA, UL/cUL 705
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Application
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Industrial and Commercial Applications
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Features
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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, Nema 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design, Optional Nema 1 and 4 Disconnects Available
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Frequency
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60 Hz
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For High-Static Pressure Applications
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No
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Safety Features
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Birdscreen, Windband
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Brake Horsepower
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1/2 hp
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Current
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6.0/3.0 A
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Assembly
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Assembled
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Exhaust Airflow @ 0.500 in SP
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1,871 cfm
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Base Shape
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Square
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Includes Motor
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Yes
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Mounting Orientation
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Vertical
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Maximum Inlet Air Temperature
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130 Degrees F
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For Air Type
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Clean Air
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High-Efficiency Motor
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No
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Motor Location
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Out of Airstream
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Motor Speed
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1,725 RPM
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Includes Drive Package
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Yes
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Mount Type
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Roof Curb
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Compatible Speed Control
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48C172
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Exhaust Airflow @ 0.000 in SP
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2,093 cfm
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Exhaust Airflow @ 0.250 in SP
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1,984 cfm
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Nameplate Voltage
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115/230V AC
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Housing Material Fabrication
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Spun
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Spark Resistant Construction Type
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A
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Motor Enclosure
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Open Air Over
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Exhaust Airflow @ 0.375 in SP
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1,928 cfm
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Compatible Curb Manufacturer Part Number
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2RB76, 2ZV82, 4C453, 4C670, 4HX39, 4HX47
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Electrical Connection
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Wire Leads
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Maximum Ambient Temperature
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130 Degrees F
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Airflow @ 0.000 in SP
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2,093 cfm
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Exhaust Airflow @ 0.125 in SP
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2,038 cfm
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Maximum Static Pressure
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1 1/2 in wc
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Sound Level
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14.0 sones @ 1.500 in SP and 5 ft, 14.9 sones @ 1.250 in SP and 5 ft, 15.5 sones @ 1.000 in SP and 5 ft, 16.0 sones @ 0.875 in SP and 5 ft, 16.2 sones @ 0.750 in SP and 5 ft, 16.4 sones @ 0.625 in SP and 5 ft, 16.7 sones @ 0.500 in SP and 5 ft, 16.8 sones @ 0.375 in SP and 5 ft, 17.0 sones @ 0.250 in SP and 5 ft, 17.2 sones @ 0.125 in SP and 5 ft, 17.4 sones @ 0.000 in SP and 5 ft
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Motor Horsepower
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1/2 hp
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Maximum Fan Speed
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1,725 RPM
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