Downblast Vent, Belt Drive, 30-1/2 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 | 115V AC/208V AC/230V AC |
| Motor HP - Roof Ventilators | 1 HP |
| Base Size - Roof Ventilators | 42 in x 42 in |
| CFM @ 0.000-In. SP | 8,585 |
| Phase | 1 |
| Motor Voltage | 115/208/230 |
| Wheel Material | Aluminum |
| Speed Controllable | No |
| Recommended 12 In. Fixed Curb Item No. | 4HX51 |
| Base Width | 42 in |
| Dimension B | 50 in |
| Item | Centrifugal Downblast Roof Exhaust Fan |
| Base Height | 1-3/4 in |
| Sones @ 0.250-In. SP @ 5 Ft. | 12.2 |
| CFM @ 0.500-In. SP | 6,456 |
| Shaft Dia. Wheel End | 1 in |
| CFM @ 0.125-In. SP | 8,150 |
| Sones @ 0.500-In. SP @ 5 Ft. | 10.7 |
| Drive Type | Belt Drive |
| Dimension A | 42 in |
| Motor HP | 1 |
| Dimension C | 36 in |
| Includes | Drive Package, NEMA 1 Junction Box |
| Dimension D | 8-1/4 in |
| Base Length | 42 in |
| Drive Package Included | Yes |
| Overall Height | 37-3/4 in |
| CFM @ 0.375-In. SP | 7,094 |
| Adj. 12 3/8"H Roof Curb Stock No. | 3C438 |
| Sones @ 0.125-In. SP @ 5 Ft. | 12.9 |
| Overall Dia. | 50 in |
| Housing Material | Aluminum |
| Base Square Size - Roof Ventilators | 42" x 42" |
| Max. Inlet Temp. | 180 deg F |
| CFM @ 0.250-In. SP | 7,640 |
| Max. BHP | 1.07 |
| Agency Compliance | AMCA Sound & Air, UL/cUL 705 |
| Mounting Location | Roof |
| CFM @ 0.625-In. SP | 5,668 |
| Hz | 60 |
| Adj. 6 3/8"H Roof Curb Stock No. | 4c455 |
| CFM @ 0.750-In. SP | 4,195 |
| Recommended 8 In. Fixed Curb Item No. | 4HX43 |
| Assembled/Unassembled | Unassembled |
| RPM | 530 |
| Wheel Type | Backward Inclined |
| Wheel Dia. | 30-1/2 in |
| Standards | AMCA Sound and Air, UL/cUL 705 |
| Bearing Type | Regreasable Pillow Block |
| Motor Location | Out of Airstream |
| Motor Enclosure | Open Dripproof |
| Safety Features | Birdscreen, Windband |
| Includes Drive Package | Yes |
| Housing Width | 50 in |
| Electrical Connection | Power Cord |
| Brake Horsepower | 1 7/100 hp |
| Spark Resistant Construction Type | A |
| Includes Motor | Yes |
| Motor Speed | 1,725 rpm |
| For High-Static Pressure Applications | No |
| Assembly | Unassembled |
| Overall Width | 50 in |
| Base Diameter | Not Applicable |
| High-Efficiency Motor | No |
| Damper Size | 35 in x 35 in |
| Exhaust Airflow @ 0.125 in SP | 8,150 cfm |
| Exhaust Airflow @ 0.500 in SP | 6,456 cfm |
| Application | Industrial and Commercial Applications |
| Nameplate Voltage | 115/208-230V AC |
| Overall Length | 50 in |
| Wheel Diameter | 30-1/2 in |
| Propeller Shaft Diameter | 1 in |
| Current | 13.6/6.9 to 6.9 A |
| Exhaust Airflow @ 0.375 in SP | 7,094 cfm |
| Maximum Inlet Air Temperature | 180 deg F |
| For Air Type | Clean Air |
| Housing Length | 50 in |
| Airflow @ 0.000 in SP | 8,585 cfm |
| Sound Level | 10.0 sones @ 0.625 in SP and 5 ft, 10.7 sones @ 0.500 in SP and 5 ft, 11.5 sones @ 0.375 in SP and 5 ft, 12.2 sones @ 0.250 in SP and 5 ft, 12.9 sones @ 0.125 in SP and 5 ft, 13.4 sones @ 0.000 in SP and 5 ft, 9.4 sones @ 0.750 in SP and 5 ft |
| Frequency | 60 Hz |
| Overall Diameter | 50 in |
| Mount Type | Roof Curb |
| Compatible Curb Manufacturer Part Number | 2RB81, 2ZV84, 3C438, 4C455, 4HX43, 4HX51 |
| Exhaust Airflow @ 0.250 in SP | 7,640 cfm |
| Base Shape | Square |
| Maximum Fan Speed | 530 RPM |
| Housing Material Fabrication | Spun |
| Maximum Static Pressure | 0.75 in wc |
| Exhaust Airflow @ 0.000 in SP | 8,585 cfm |
| Features | Fully Rolled Windband Bead for Increased Stability and Easy Transport, NEMA 1 Junction Box Located in Motor Enclosure |
| Motor Horsepower | 1 HP |
| Resistance Properties | Weather Resistant |
| Country of Origin (subject to change) | Multiple |
| Package Quantity | 1 |