| Item | Downblast Ventilator |
| Assembled/unassembled | Unassembled |
| Assembly | Unassembled |
| Base Dia. | Not Applicable |
| Base Height | 1 3/4" |
| Base Length | 22" |
| Base Shape | Square |
| Base Size | 22" x 22" |
| Base Width | 22" |
| Bearing Type | Sealed Pillow Block |
| Brake Hp | 17/50 hp |
| Dimension A | 22" |
| Dimension B | 28 3/8" |
| Dimension C | 27 1/4" |
| Dimension D | 4" |
| Drive Package Included | Yes |
| Drive Package With Motor Included | Yes |
| Drive Type | Belt Drive |
| Duty Rating | Standard |
| Electrical Connection | Power Cord |
| For Air Type | Clean Air |
| For High-static Pressure Applications | No |
| High-efficiency Motor | No |
| Housing Length | 28 2/5" |
| Housing Material | Aluminum , Spun |
| Housing Width | 28 2/5" |
| Includes Drive Package | Yes |
| Includes Motor | Yes |
| Max. Bhp | 0.34 bhp |
| Max. Inlet Temp. | 180°F |
| Motor Hp | 333/1000 hp |
| Motor Location | Out Of Airstream |
| Motor Voltage | 115/208-230V |
| 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 | 28 3/8" |
| Phase | 1 |
| Propeller Shaft Dia. | 3/4" |
| Resistance Properties | Weather Resistant |
| Safety Features | Birdscreen, Windband |
| Shaft Dia. Sheave End | 3/4" |
| Shaft Dia. Wheel End | 3/4" |
| Sones @ 0.125-in. Sp @ 5 Ft. | 12 sones |
| Sones @ 0.250-in. Sp @ 5 Ft. | 11.5 sones |
| Sones @ 0.500-in. Sp @ 5 Ft. | 10.7 sones |
| Spark Resistant Construction Type | A |
| Speed Control | No |
| Wheel Dia. | 16 3/4" |
| Wheel Material | Aluminum |
| Wheel Type | Backward Inclined , Centrifugal Backward Inclined |
| Application | Industrial And Commercial Applications |
| Brake Horsepower | 17/50 bhp |
| Compatible Curb Grainger Part Number | 2RB76, 2ZV82 |
| Compatible Damper Grainger Part Number | 4HX65 |
| Current | 6.6/3.4-3.1A |
| Damper Size | 15" x 15" |
| Exhaust Airflow @ 0.000 In Sp | 2791 CFM |
| Exhaust Airflow @ 0.125 In Sp | 2612 CFM |
| Exhaust Airflow @ 0.250 In Sp | 2434 CFM |
| Exhaust Airflow @ 0.375 In Sp | 2236 CFM |
| Exhaust Airflow @ 0.500 In Sp | 2010 CFM |
| Features | Fresh Outside Air Is Drawn In Under The Motor Cover To Maximize Motor Life, Fully Rolled Windband Bead For Increased Stability And Easy Transport, Nonoverloading Centrifugal Wheel Design |
| Frequency | 60 Hz |
| Housing Material Fabrication | Spun |
| Includes Drive Package With Motor | Yes |
| Maximum Fan Speed | 945 RPM |
| Maximum Inlet Air Temperature | 180°F |
| Maximum Static Pressure | 5/8 in. wc |
| Motor Enclosure | Open Dripproof |
| Motor Horsepower | 1/3 hp |
| Motor Speed | 1725 RPM |
| Nameplate Voltage | 115/208-230V AC |
| Number Of Speeds | 1 |
| Overall Diameter | 28 3/8" |
| Sound Level | 10.0 sones @ 0.625 in SP and 5 ft, 10.7 sones @ 0.500 in SP and 5 ft, 11.2 sones @ 0.375 in SP and 5 ft, 11.5 sones @ 0.250 in SP and 5 ft, 12.0 sones @ 0.125 in SP and 5 ft, 12.6 sones @ 0.000 in SP and 5 ft |
| Speed Controllable | No |
| Standards | AMCA SOUND AND AIR, UL/CUL 705 |
| Wheel Diameter | 16 3/4" |
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