| Application | Industrial and Commercial Buildings, Restaurants, Schools |
| Assembly | Unassembled |
| Base Diameter | Not Applicable |
| Base Height | 1.8 in |
| Base Length, Base Width | 26 in |
| Base Shape | Square |
| Bearing Type | Sealed Pillow Block |
| Brake Horsepower | 13/50 hp, 17/50 hp, 13/25 hp, 39/50 hp |
| Compatible Curb Grainger Part Number | 2RB77, 2ZV83, 3C437, 4C454, 4HX40, 4HX48, 4HX56, 4HX62 |
| Compatible Curb Manufacturer Part Number | 24Y860, 2RB75-2RB77, 2RB79-2RB82, 2ZV82-2ZV85 |
| Compatible Damper Grainger Part Number | 4HX66 |
| Cutout Length | 21.5 in |
| Cutout Size | 21.5 in L x 21.5 in W |
| Damper Size | 19 x 19 in |
| Drive Type | Belt |
| Electrical Connection | Power Cord |
| Features | Air Handling Quality Bearings Meet Minimum of L10-100,000 Hours, NEMA 1 Junction Box Located in Motor Enclosure, Nonoverloading Centrifugal Wheel Design |
| For Air Type | Kitchen Air |
| For High-Static Pressure Applications | Yes |
| Housing Length, Housing Width | 28.9 in |
| Housing Material Fabrication | Spun |
| Housing Material, Wheel Material | Aluminum |
| Includes | NEMA 1 Junction Box |
| Includes Drive Package, Includes Motor, Speed Controllable | No |
| Item | Centrifugal Upblast Roof Exhaust Fan |
| Maximum Airflow | 1,592 cfm |
| Maximum Ambient Temperature, Maximum Inlet Air Temperature | 300 Degrees F |
| Maximum Fan Speed, Maximum Motor Speed | 2,110 RPM |
| Maximum Motor Horsepower | 3/4 hp |
| Maximum Static Pressure | 2 3/4 in wc |
| Minimum Airflow | 642 cfm |
| Minimum Motor Horsepower | 1/4 hp |
| Minimum Motor Speed | 1,465 RPM |
| Motor Location | Out of Airstream |
| Mount Type | Roof Curb |
| Mounting Location | Roof |
| Number of Speeds | 1 |
| Overall Depth, Overall Height | 28 1/8 in |
| Overall Diameter, Overall Width | 28 7/8 in |
| Propeller Shaft Diameter | 3/4 in |
| Resistance Properties | Spark Resistant |
| Safety Features | Fully Rolled Windband |
| Sound Level | Fan RPM 1465: 14.2 sones @ 0.500 in SP and 5 ft, 13.7 sones @ 0.625 in SP and 5 ft, 13.5 sones @ 0.750 in SP and 5 ft, 13.4 sones @ 0.875 in SP and 5 ft, 13.2 sones @ 1.000 in SP and 5 ft, 15.5 sones @ 1.250 in SP and 5 ft, Fan RPM 1605: 15.2 sones @ 0.500 in SP and 5 ft, 14.7 sones @ 0.625 in SP and 5 ft, 14.4 sones @ 0.750 in SP and 5 ft, 14.3 sones @ 0.875 in SP and 5 ft, 14.2 sones @ 1.000 in SP and 5 ft, 14.0 sones @ 1.250 in SP and 5 ft, 15.2 sones @ 1.500 in SP and 5 ft, Fan RPM 1845: 17.0 sones @ 0.500 in SP and 5 ft, 16.8 sones @ 0.625 in SP and 5 ft, 16.6 sones @ 0.750 in SP and 5 ft, 16.4 sones @ 0.875 in SP and 5 ft, 16.2 sones @ 1.000 in SP and 5 ft, 16.0 sones @ 1.250 in SP and 5 ft, 15.9 sones @ 1.500 in SP and 5 ft, 15.6 sones @ 1.750 in SP and 5 ft, 16.1 sones @ 2.000 in SP and 5 ft, Fan RPM 2110: 19.8 sones @ 0.500 in SP and 5 ft, 19.6 sones @ 0.625 in SP and 5 ft, 19.3 sones @ 0.750 in SP and 5 ft, 19.2 sones @ 0.875 in SP and 5 ft, 19.1 sones @ 1.000 in SP and 5 ft, 19.0 sones @ 1.250 in SP and 5 ft, 18.9 sones @ 1.500 in SP and 5 ft, 18.8 sones @ 1.750 in SP and 5 ft, 18.6 sones @ 2.000 in SP and 5 ft, 18.5 sones @ 2.250 in SP and 5 ft, 18.3 sones @ 2.500 in SP and 5 ft, 20.0 sones @ 2.750 in SP |
| Spark Resistant Construction Type | A |
| Standards | AMCA Sound and Air, UL/cUL 762 |
| Wheel Diameter | 14 3/4 in |
| Wheel Type | Backward Inclined |