| Item | Downblast Ventilator Less Drv Pkg |
| Assembly | Unassembled |
| Base Dia. | Not Applicable |
| Base Height | 1 3/4" , 1 4/5" |
| Base Length | 26" |
| Base Shape | Square |
| Base Size | 26" x 26" |
| Base Width | 26" |
| Bearing Type | Sealed Pillow Block |
| Brake Hp | 13/50 hp |
| Cfm Range | 2555 To 4062 @ 0.0-in. sp |
| Cutout Length | 21 1/2" |
| Dimension A | 26" |
| Dimension B | 28 3/8" |
| Dimension C | 27 1/4" |
| Dimension D | 4" |
| Drive Package With Motor Included | No |
| Drive Type | Belt Drive |
| Duty Rating | Hazardous Location |
| Electrical Connection | Power Cord |
| Flow Rate | 2555-4062 CFM |
| For Air Type | Clean Air |
| For High-static Pressure Applications | No |
| Housing Length | 28 2/5" |
| Housing Material | Aluminum , Spun |
| Housing Width | 28 2/5" |
| Includes Drive Package | No |
| Includes Motor | No |
| Max. Inlet Temp. | 180°F |
| Max. Motor Hp | 1 hp |
| Min. Motor Hp | 1/4 hp |
| Motor Hp | 1/4 hp to 1 hp |
| Motor Location | Out Of Airstream |
| Mount Type | Roof Curb |
| Mounting Location | Roof |
| Overall Dia. | 28 3/8" |
| Overall Height | 27 1/4" , 29" |
| Overall Length | 28 3/8" |
| Overall Width | 27 1/4" |
| Power Source | Electric Motor |
| Propeller Shaft Dia. | 3/4" |
| Recommended Damper Size (in.) | 19" x 19" |
| Requires | Roof Curb For New Installations |
| Resistance Properties | Weather Resistant |
| Rpm Range | 865-1375 RPM |
| Safety Features | Birdscreen, Windband |
| Shaft Dia. Sheave End | 3/4" |
| Shaft Dia. Wheel End | 3/4" |
| Spark Resistant Construction Type | A |
| Speed Controllable | No |
| Wheel Dia. | 16 3/4" |
| Wheel Material | Aluminum |
| Wheel Type | Backward Inclined , Centrifugal Backward Inclined |
| Application | Industrial And Commercial Buildings |
| Brake Horsepower | 13/50 bhp |
| Compatible Damper Grainger Part Number | 4HX66 |
| Damper Size | 19" x 19" |
| Features | Air 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 Fabrication | Spun |
| Includes Drive Package With Motor | No |
| Maximum Airflow | 4062 CFM |
| Maximum Fan Speed | 1375 RPM |
| Maximum Inlet Air Temperature | 180°F |
| Maximum Motor Horsepower | 1 hp |
| Maximum Motor Speed | 1375 RPM |
| Maximum Static Pressure | 1 1/2 in. wc |
| Minimum Airflow | 1624 CFM |
| Minimum Motor Horsepower | 1/4 hp |
| Minimum Motor Speed | 865 RPM |
| Noise Level @ 0.000 In Sp @ 5 Ft | 10 sones |
| Number Of Speeds | 1 |
| Overall Diameter | 28 3/8" |
| Standards | AMCA SOUND AND AIR, UL/CUL 705 |
| Wheel Diameter | 16 3/4" |
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