This axial downblast roof exhaust fans includes NEMA 1 junction box, and is made of aluminum. It features fully rolled baffle bead, galvanized steel venturi/inlet/supports, and more and measures 35¼ inch width, 30½ inch height, 35¼ inch length, and it is not speed controllable. This axial downblast roof exhaust fans is designed for use with: industrial and commercial buildings. In addition, it is roof mountable, 3,957 cfm air flow, and 35¼ inch diameter, and ¾ max horsepower.
Technical Specs
ItemAxial Downblast Roof Exhaust Fans
Mounting LocationRoof
Base Length30 in
Base Width30 in
Minimum Airflow960 cfm
Minimum Motor Horsepower1/4 hp
Maximum Motor Speed1,147 RPM
For High-Static Pressure ApplicationsNot For High-Static Pressure Applications
Blade MaterialSteel
Maximum Inlet Air Temperature120 Degrees F
StandardsAMCA Air Rated, UL/cUL 705
Overall Height30 1/2 in
Overall Width35 1/4 in
Includes MotorMotor Not Included
Base Height1 3/4 in
Blade DesignSwept Steeply Pitched
Compatible Curb Manufacturer Part Number2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49
Cutout Size25.5 in L x 25.5 in W
Electrical ConnectionPower Cord
Housing Length35.3 in
Housing Width35.3 in
Maximum Fan Speed1,147 RPM
Mount TypeRoof Curb
Propeller Shaft Diameter3/4 in
Safety FeaturesBirdscreen, Windband
AssemblyUnassembled
Blade Diameter20 in
Base ShapeSquare
Maximum Airflow3,957 cfm
Maximum Motor Horsepower3/4 hp
Minimum Motor Speed795 RPM
Maximum Static Pressure3/4 in wc
For Air TypeClean Air
Housing MaterialAluminum
Speed ControllableSpeed Not Controllable
Overall Diameter35 1/4 in
Overall Length35 1/4 in
Includes Drive PackageDrive Package Not Included
ApplicationIndustrial and Commercial Buildings
Bearing TypeRegreasable Pillow Block
Brake Horsepower13/50 hp, 17/50 hp, 13/25 hp, 39/50 hp
Cutout Length25.5 in
Damper Size23 x 23 in
FeaturesFully Rolled Baffle Bead for Stability and Ease of Transport With Spun Aluminum Hood Construction, Galvanized Steel Venturi, Inlet and Supports, NEMA 1 Junction Box Located in Motor Enclosure
Housing Material FabricationSpun
IncludesNEMA 1 Junction Box
Motor LocationIn Airstream
Number of Blades5
Resistance PropertiesWeather Resistant
Country of OriginUnited States
(subject to change)