This centrifugal downblast roof exhaust fan includes NEMA 1 junction box, and is made of aluminum. It features a fully rolled windband bead, fresh outside air is drawn in under the motor cover, and more and measures 50¾ inch width, 52½ inch height, 83 inch length. This centrifugal downblast roof exhaust fan is designed for use with: industrial and commercial buildings. In addition, it is roof mountable, 37,068 cfm air flow, and 83 inch diameter, and 10 max horsepower.
Technical Specs
ItemCentrifugal Downblast Roof Exhaust Fan
AssemblyUnassembled
Wheel Diameter50 in
Base Width64 in
Minimum Airflow12,424 cfm
Maximum Motor Horsepower10 hp
Minimum Motor Speed214 RPM
Maximum Static Pressure1 1/4 in wc
StandardsAMCA Sound and Air, UL/cUL 705
Wheel MaterialAluminum
Overall Diameter83 in
Overall Length83 in
Includes Drive PackageDrive Package Not Included
ApplicationIndustrial and Commercial Buildings
Bearing TypeRegreasable Pillow Block
Compatible Curb Manufacturer Part Number1VN43, 2RB83, 2ZV87, 4YY76, 4YY77
Cutout Size52.5 in L x 52.5 in W
Electrical ConnectionPower Cord
Housing Length83 in
Housing Width83 in
Maximum Fan Speed460 RPM
Motor LocationOut of Airstream
Noise Level @ 0.000 in SP @ 5 ft9.7 sones
Power SourceElectric Motor
Resistance PropertiesWeather Resistant
Sound LevelFan RPM 214: 9.7 sones @ 0.000 in SP and 5 ft, 9.1 sones @ 0.125 in SP and 5 ft, 8.7 sones @ 0.250 in SP and 5 ft, Fan RPM 245: 12.2 sones @ 0.000 in SP and 5 ft, 11.6 sones @ 0.125 in SP and 5 ft, 11.0 sones @ 0.250 in SP and 5 ft, 10.7 sones @ 0.375 in SP and 5 ft, Fan RPM 269: 14.3 sones @ 0.000 in SP and 5 ft, 13.8 sones @ 0.125 in SP and 5 ft, 13.2 sones @ 0.250 in SP and 5 ft, 12.7 sones @ 0.375 in SP and 5 ft, Fan RPM 308: 17.9 sones @ 0.000 in SP and 5 ft, 17.5 sones @ 0.125 in SP and 5 ft, 16.9 sones @ 0.250 in SP and 5 ft, 16.2 sones @ 0.375 in SP and 5 ft, 15.8 sones @ 0.500 in SP and 5 ft, 15.6 sones @ 0.625 in SP and 5 ft, Fan RPM 366: 23.0 sones @ 0.000 in SP and 5 ft, 22.0 sones @ 0.125 in SP and 5 ft, 21.0 sones @ 0.250 in SP and 5 ft, 21.0 sones @ 0.375 in SP and 5 ft, 20.0 sones @ 0.500 in SP and 5 ft, 19.8 sones @ 0.625 in SP and 5 ft, 19.5 sones @ 0.750 in SP and 5 ft, 19.4 sones @ 0.875 in SP and 5 ft, Fan RPM 419: 28.0 sones @ 0.000 in SP and 5 ft, 27.0 sones @ 0.125 in SP and 5 ft, 27.0 sones @ 0.250 in SP and 5 ft, 26.0 sones @ 0.375 in SP and 5 ft, 26.0 sones @ 0.500 in SP and 5 ft, 25.0 sones @ 0.625 in SP and 5 ft, 24.0 sones @ 0.750 in SP and 5 ft, 24.0 sones @ 0.875 in SP and 5 ft, 23.0 sones @ 1.000 in SP and 5 ft, Fan RPM 460: 32.0 sones @ 0.000 in SP and 5 ft, 32.0 sones @ 0.125 in SP and 5 ft, 32.0 sones @ 0.250 in SP and 5 ft, 32.0 sones @ 0.375 in SP and 5 ft, 32.0 sones @ 0.500 in SP and 5 ft, 31.0 sones @ 0.625 in SP and 5 ft, 30.0 sones @ 0.750 in SP and 5 ft, 29.0 sones @ 0.875 in SP and 5 ft, 28.0 sones @ 1.000 in SP and 5 ft, 27.0 sones @ 1.250 in SP and 5 ft
Speed ControllableSpeed Not Controllable
Drive TypeBelt Drive
Mounting LocationRoof
Base Length64 in
Base ShapeSquare
Maximum Airflow37,068 cfm
Minimum Motor Horsepower1 hp
Maximum Motor Speed460 RPM
For High-Static Pressure ApplicationsNot For High-Static Pressure Applications
For Air TypeClean Air
Housing MaterialAluminum
Overall Height52 1/2 in
Overall Width50 3/4 in
Includes MotorMotor Not Included
Base Height1.8 in
Brake Horsepower1 1/25 hp
Cutout Length52.5 in
Damper Size50 x 50 in
FeaturesAir Handling Quality Bearings Meet Minimum of L10-100,000 Hours, 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
Housing Material FabricationSpun
IncludesNEMA 1 Junction Box
Maximum Inlet Air Temperature180 Degrees F
Mount TypeRoof Curb
Number of Speeds1
Propeller Shaft Diameter1 1/4 in
Safety FeaturesBirdscreen, Windband
Spark Resistant Construction TypeA
Wheel TypeBackward Inclined
Country of OriginUnited States
(subject to change)