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 24⅞ inch width, 26⅝ inch height, 24⅜ inch length. This centrifugal downblast roof exhaust fan is designed for use with: industrial and commercial buildings. In addition, it is roof mountable, 1,526 cfm air flow, and 24⅜ inch diameter, and 1/3 max horsepower.
Technical Specs
ItemCentrifugal Downblast Roof Exhaust Fan
AssemblyUnassembled
Wheel Diameter11 in
Base Width22 in
Minimum Airflow793 cfm
Maximum Motor Horsepower1/3 hp
Minimum Motor Speed1,635 RPM
Maximum Static Pressure1 1/4 in wc
StandardsAMCA Sound and Air, UL/cUL 705
Wheel MaterialAluminum
Overall Diameter24 3/8 in
Overall Length24 3/8 in
Includes Drive PackageDrive Package Not Included
ApplicationIndustrial and Commercial Buildings
Bearing TypeSealed Pillow Block
Compatible Curb Manufacturer Part Number2RB76, 2ZV82, 4C453, 4C670, 4HX39, 4HX47
Cutout Size17.5 in L x 17.5 in W
Electrical ConnectionPower Cord
Housing Length24.4 in
Housing Width24.4 in
Maximum Fan Speed1,800 RPM
Motor LocationOut of Airstream
Noise Level @ 0.000 in SP @ 5 ft11.1 sones
Power SourceElectric Motor
Resistance PropertiesWeather Resistant
Sound LevelFan RPM 1635: 11.1 sones @ 0.000 in SP and 5 ft, 10.8 sones @ 0.125 in SP and 5 ft, 10.4 sones @ 0.250 in SP and 5 ft, 10.2 sones @ 0.375 in SP and 5 ft, 9.8 sones @ 0.500 in SP and 5 ft, 9.3 sones @ 0.625 in SP and 5 ft, 8.9 sones @ 0.750 in SP and 5 ft, 8.4 sones @ 0.875 in SP and 5 ft, 7.8 sones @ 1.000 in SP and 5 ft, Fan RPM 1800: 13.2 sones @ 0.000 in SP and 5 ft, 12.8 sones @ 0.125 in SP and 5 ft, 12.5 sones @ 0.250 in SP and 5 ft, 12.3 sones @ 0.375 in SP and 5 ft, 12.2 sones @ 0.500 in SP and 5 ft, 11.3 sones @ 0.625 in SP and 5 ft, 10.8 sones @ 0.750 in SP and 5 ft, 10.6 sones @ 0.875 in SP and 5 ft, 10.1 sones @ 1.000 in SP and 5 ft, 9.3 sones @ 1.250 in SP and 5 ft
Speed ControllableSpeed Not Controllable
Drive TypeBelt Drive
Mounting LocationRoof
Base Length22 in
Base ShapeSquare
Maximum Airflow1,526 cfm
Minimum Motor Horsepower1/4 hp
Maximum Motor Speed1,800 RPM
For High-Static Pressure ApplicationsNot For High-Static Pressure Applications
For Air TypeClean Air
Housing MaterialAluminum
Overall Height26 5/8 in
Overall Width24 7/8 in
Includes MotorMotor Not Included
Base Height1.8 in
Brake Horsepower1/4 hp
Cutout Length17.5 in
Damper Size15 x 15 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 Diameter3/4 in
Safety FeaturesBirdscreen, Windband
Spark Resistant Construction TypeA
Wheel TypeBackward Inclined
Country of OriginUnited States
(subject to change)