| Item | Downblast Ventilator |
| Assembled/unassembled | Assembled |
| Assembly | Assembled |
| Base Dia. | Not Applicable |
| Base Height | 1 3/4" |
| Base Length | 30" |
| Base Shape | Square |
| Base Size | 30" x 30" |
| Base Width | 30" |
| Bearing Type | Regreasable Pillow Block |
| Brake Hp | 1 1/10 hp |
| Cutout Length | 25 1/2" |
| Dimension A | 30" |
| Dimension B | 35 1/2" |
| Dimension C | 34 3/8" |
| Dimension D | 5 1/2" |
| 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 | 35 1/2" |
| Housing Material | Aluminum , Spun |
| Housing Width | 35 1/2" |
| Includes Drive Package | Yes |
| Includes Motor | Yes |
| Max. Bhp | 1.1 bhp |
| Max. Inlet Temp. | 180°F |
| Motor Location | Out Of Airstream |
| Motor Voltage | 115/230V |
| Mount Type | Roof Curb |
| Mounting Location | Roof |
| Number Of Speeds | 1 |
| Overall Dia. | 35 1/2" |
| Overall Height | 34 3/8" , 37 3/4" |
| Overall Length | 35 1/2" |
| Overall Width | 35 1/2" |
| 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. | 18.4 sones |
| Sones @ 0.250-in. Sp @ 5 Ft. | 17.8 sones |
| Sones @ 0.500-in. Sp @ 5 Ft. | 17.1 sones |
| Spark Resistant Construction Type | A |
| Speed Control | No |
| Wheel Dia. | 18 1/2" |
| Wheel Material | Aluminum |
| Wheel Type | Backward Inclined , Centrifugal Backward Inclined |
| Application | Industrial And Commercial Applications |
| Brake Horsepower | 1 1/10 bhp |
| Compatible Curb Grainger Part Number | 2RB79, 2ZV83, 3C437, 4C454, 4HX41, 4HX49 |
| Compatible Damper Grainger Part Number | 4HX67 |
| Current | 12.8/6.4-6.4A |
| Damper Size | 23" x 23" |
| Exhaust Airflow @ 0.000 In Sp | 4608 CFM |
| Exhaust Airflow @ 0.125 In Sp | 4508 CFM |
| Exhaust Airflow @ 0.250 In Sp | 4401 CFM |
| Exhaust Airflow @ 0.375 In Sp | 4290 CFM |
| Exhaust Airflow @ 0.500 In Sp | 4179 CFM |
| 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 |
| Frequency | 60 Hz |
| Housing Material Fabrication | Spun |
| Includes Drive Package With Motor | Yes |
| Maximum Ambient Temperature | 180°F |
| Maximum Fan Speed | 1185 RPM |
| Maximum Inlet Air Temperature | 180°F |
| Maximum Static Pressure | 1 1/2 in. wc |
| Motor Enclosure | Open Dripproof |
| Motor Horsepower | 1 hp |
| Motor Speed | 1725 RPM |
| Nameplate Voltage | 115/208-230V AC |
| Overall Diameter | 35 1/2" |
| Sound Level | 13.7 sones @ 1.500 in SP and 5 ft, 14.7 sones @ 1.250 in SP and 5 ft, 15.4 sones @ 1.000 in SP and 5 ft, 15.8 sones @ 0.875 in SP and 5 ft, 16.2 sones @ 0.750 in SP and 5 ft, 16.7 sones @ 0.625 in SP and 5 ft, 17.1 sones @ 0.500 in SP and 5 ft, 17.4 sones @ 0.375 in SP and 5 ft, 17.8 sones @ 0.250 in SP and 5 ft, 18.4 sones @ 0.125 in SP and 5 ft, 19.0 sones @ 0.000 in SP and 5 ft |
| Speed Controllable | No |
| Standards | AMCA SOUND AND AIR, UL/CUL 705 |
| Wheel Diameter | 18 1/2" |
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