This exhaust fan includes NEMA 1 junction box, and is made of aluminum. It features energy saving units with EC motors, fresh outside air is drawn in under the motor cover, and measures 21¾ inch width, 16⅜ inch height, 21¾ inch length. This exhaust fan is designed for use with: industrial/commercial buildings. In addition, it is one-phase, 60 Hz, is roof mountable, has variable speeds, is direct drive, 1,535 cfm @ 0.125 in SP air flow, 28⅜ inch diameter, and ¾ horsepower.
Technical Specs
ItemCentrifugal Downblast Roof Exhaust Fan
AssemblyAssembled
Base Length19 in
Base ShapeSquare
Phase1
Exhaust Airflow @ 0.000 in SP1,618 cfm
High-Efficiency MotorHigh-Efficiency Motor
Includes Drive PackageDrive Package Included
Mounting LocationRoof
Exhaust Airflow @ 0.500 in SP1,211 cfm
Housing MaterialAluminum
Motor EnclosureTotally Enclosed Fan Cooled
Overall Diameter28 3/8 in
Overall Length21 3/4 in
Airflow @ 0.000 in SP2,448 cfm
Base Height1 3/4 in
Compatible Curb Manufacturer Part Number2RB75, 2ZV82
Current10.6 A
Cutout Size14.5 in L x 14.5 in W
Electrical ConnectionPower Cord
Exhaust Airflow @ 0.250 in SP1,444 cfm
FeaturesEnergy Saving Units Feature Ec Motors Which Allow up to 80% Useable Turndown, Fresh Outside Air is Drawn In Under The Motor Cover to Maximize Motor Life, Fully Rolled Windband Bead For Increased Stability and Easy Transport, High-Efficiency Brushless DC Motor, Motor Features Potentiometer Dial for Speed Adjustment, Nema 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design, Optional Nema 1 And 4 Disconnects Available
Housing Length28.4 in
Housing Width28.4 in
Maximum Ambient Temperature130 Degrees F
Maximum Inlet Air Temperature130 Degrees F
Mounting OrientationVertical
Propeller Shaft Diameter5/8 in
Sound LevelFan RPM 1140: 10.0 sones @ 0.000 in SP and 5 ft, 9.8 sones @ 0.125 in SP and 5 ft, 9.6 sones @ 0.250 in SP and 5 ft, 9.2 sones @ 0.375 in SP and 5 ft, 8.8 sones @ 0.500 in SP and 5 ft, 8.5 sones @ 0.625 in SP and 5 ft, Fan RPM 1725: 17.4 sones @ 0.000 in SP and 5 ft, 17.0 sones @ 0.125 in SP and 5 ft, 16.7 sones @ 0.250 in SP and 5 ft, 16.3 sones @ 0.375 in SP and 5 ft, 15.9 sones @ 0.500 in SP and 5 ft, 15.6 sones @ 0.625 in SP and 5 ft, 15.4 sones @ 0.750 in SP and 5 ft, 14.9 sones @ 1.000 in SP and 5 ft, 14.3 sones @ 1.250 in SP and 5 ft, 13.8 sones @ 1.500 in SP and 5 ft, Fan RPM 860: 6.6 sones @ 0.000 in SP and 5 ft, 6.5 sones @ 0.125 in SP and 5 ft, 6.3 sones @ 0.250 in SP and 5 ft, 6.0 sones @ 0.375 in SP and 5 ft
Speed ControllableSpeed Controllable
Drive TypeDirect Drive
Wheel Diameter13 3/4 in
Base Width19 in
Nameplate Voltage115V AC
Motor Horsepower3/4 hp
For High-Static Pressure ApplicationsNot For High-Static Pressure Applications