Downblast Vent, Belt Drive, 50 In
| Item - Roof Ventilators | Downblast Ventilator |
|---|---|
| Drive Package With Motor Included | Yes |
| Duty Rating - Roof Ventilators | Standard |
| Drive Type - Roof Ventilators | Belt Drive |
| Mounting Location - Roof Ventilators | Roof |
| Number of Speeds | 1 |
| Voltage - Roof Ventilators | 208V AC/230V AC/460V AC |
| Motor HP - Roof Ventilators | 10 HP |
| Base Size - Roof Ventilators | 64 in x 64 in |
| CFM @ 0.000-In. SP | 37,068 |
| Max. Operating Amps | 26.7-24.2/12.1 |
| Motor HP | 10 |
| CFM @ 0.375-In. SP | 33,900 |
| CFM @ 0.750-In. SP | 30,342 |
| Sones @ 0.250-In. SP @ 5 Ft. | 32 |
| Hz | 60 |
| Base Length | 64 in |
| CFM @ 0.500-In. SP | 32,805 |
| Overall Height | 52-1/2 in |
| Wheel Type | Backward Inclined |
| Adj. 12 3/8"H Roof Curb Stock No. | 1VN43 or 2ZV87 |
| Mounting Location | Roof |
| Dimension B | 83 in |
| CFM @ 0.125-In. SP | 36,030 |
| CFM @ 1.000-In. SP | 27,917 |
| Max. Inlet Temp. | 180 deg F |
| Phase | 3 |
| Drive Type | Belt Drive |
| Sones @ 0.125-In. SP @ 5 Ft. | 32 |
| Assembled/Unassembled | Unassembled |
| Dimension A | 64 in |
| CFM @ 0.625-In. SP | 31,625 |
| Dimension D | 14-1/2 in |
| Base Square Size - Roof Ventilators | 64" x 64" |
| Includes | Drive Package, NEMA 1 Junction Box |
| CFM @ 1.250-In. SP | 25,310 |
| Housing Material | Aluminum |
| Overall Dia. | 83 in |
| Item | Centrifugal Downblast Roof Exhaust Fan |
| Motor Voltage | 208/230/460 |
| Base Width | 64 in |
| CFM @ 0.875-In. SP | 29,127 |
| Wheel Dia. | 50 in |
| Shaft Dia. Wheel End | 1-1/4 in |
| Drive Package Included | Yes |
| RPM | 460 |
| Max. BHP | 10.26 |
| CFM @ 0.250-In. SP | 34,991 |
| Base Height | 1-3/4 in |
| Recommended 8 In. Fixed Curb Item No. | 4YY76 |
| Agency Compliance | AMCA Sound & Air, UL/cUL 705 |
| Dimension C | 50-3/4 in |
| Wheel Material | Aluminum |
| Recommended 12 In. Fixed Curb Item No. | 2RB83 or 4YY77 |
| Speed Controllable | No |
| Sones @ 0.500-In. SP @ 5 Ft. | 32 |
| Bearing Type | Regreasable Pillow Block |
| Standards | AMCA Sound and Air, UL/cUL 705 |
| Base Diameter | Not Applicable |
| Brake Horsepower | 10 13/50 hp |
| Motor Location | Out of Airstream |
| Includes Motor | Yes |
| Exhaust Airflow @ 0.250 in SP | 34,991 cfm |
| Compatible Curb Manufacturer Part Number | 1VN43, 2RB83, 2ZV87, 4YY76, 4YY77 |
| Propeller Shaft Diameter | 1-1/4 in |
| Safety Features | Birdscreen, Windband |
| Exhaust Airflow @ 0.125 in SP | 36,030 cfm |
| Overall Width | 83 in |
| 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 |
| Wheel Diameter | 50 in |
| Assembly | Unassembled |
| Housing Width | 83 in |
| Maximum Inlet Air Temperature | 180 deg F |
| For Air Type | Clean Air |
| Airflow @ 0.000 in SP | 37,068 cfm |
| Maximum Static Pressure | 1.25 in wc |
| Exhaust Airflow @ 0.000 in SP | 37,068 cfm |
| Nameplate Voltage | 208-230/460V AC |
| Damper Size | 50 in x 50 in |
| Overall Length | 83 in |
| High-Efficiency Motor | No |
| Maximum Fan Speed | 460 RPM |
| Resistance Properties | Weather Resistant |
| Current | 27.4 to 24.8/12.4 A |
| Electrical Connection | Power Cord |
| Motor Enclosure | Open Dripproof |
| Exhaust Airflow @ 0.375 in SP | 33,900 cfm |
| Includes Drive Package | Yes |
| Motor Speed | 1,770 rpm |
| Mount Type | Roof Curb |
| Sound Level | 27.0 sones @ 1.250 in SP and 5 ft, 28.0 sones @ 1.000 in SP and 5 ft, 29.0 sones @ 0.875 in SP and 5 ft, 30.0 sones @ 0.750 in SP and 5 ft, 31.0 sones @ 0.625 in SP and 5 ft, 32.0 sones @ 0.000 in SP and 5 ft, 32.0 sones @ 0.125 in SP and 5 ft, 32.0 sones @ 0.250 in SP and 5 ft, 32.0 sones @ 0.375 in SP and 5 ft, 32.0 sones @ 0.500 in SP and 5 ft |
| For High-Static Pressure Applications | No |
| Exhaust Airflow @ 0.500 in SP | 32,805 cfm |
| Overall Diameter | 83 in |
| Housing Length | 83 in |
| Base Shape | Square |
| Application | Industrial and Commercial Applications |
| Spark Resistant Construction Type | A |
| Motor Horsepower | 10 HP |
| Housing Material Fabrication | Spun |
| Frequency | 60 Hz |
| Country of Origin (subject to change) | Multiple |
| Package Quantity | 1 |