Downblast Vent, Belt Drive, 11 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 | 0.3333 HP |
| Base Size - Roof Ventilators | 22 in x 22 in |
| CFM @ 0.000-In. SP | 1,526 |
| Max. Inlet Temp. | 180 deg F |
| Agency Compliance | AMCA Sound & Air, CSA Certified Motor, UL/cUL 705 |
| Drive Type | Belt Drive |
| CFM @ 1.000-In. SP | 1,065 |
| Max. BHP | 0.3255 |
| Overall Dia. | 24-3/8 in |
| CFM @ 0.875-In. SP | 1,142 |
| Shaft Dia. Wheel End | 3/4 in |
| CFM @ 0.750-In. SP | 1,209 |
| Wheel Dia. | 11 in |
| Drive Package Included | Yes |
| Hz | 60 |
| Phase | 1 |
| Sones @ 0.250-In. SP @ 5 Ft. | 12.5 |
| CFM @ 0.125-In. SP | 1,471 |
| Speed Controllable | No |
| Sones @ 0.125-In. SP @ 5 Ft. | 12.8 |
| Adj. 12 3/8"H Roof Curb Stock No. | 2ZV82 |
| Wheel Material | Aluminum |
| Dimension B | 24-3/8 in |
| CFM @ 0.250-In. SP | 1,419 |
| Base Length | 22 in |
| Sones @ 0.500-In. SP @ 5 Ft. | 12.2 |
| Base Width | 22 in |
| CFM @ 1.250-In. SP | 793 |
| Dimension D | 4-3/8 in |
| Recommended 12 In. Fixed Curb Item No. | 2RB76 |
| CFM @ 0.625-In. SP | 1,270 |
| Assembled/Unassembled | Assembled |
| Motor HP | 0.3333 |
| Base Square Size - Roof Ventilators | 22" x 22" |
| Base Height | 1-3/4 in |
| Housing Material | Aluminum |
| Mounting Location | Roof |
| Dimension A | 22 in |
| CFM @ 0.500-In. SP | 1,321 |
| RPM | 1,800 |
| Motor Voltage | 115/208/230 |
| Includes | NEMA 1 Junction Box |
| Wheel Type | Backward Inclined |
| Item | Centrifugal Downblast Roof Exhaust Fan |
| Dimension C | 24-7/8 in |
| Recommended 8 In. Fixed Curb Item No. | 4HX39 |
| CFM @ 0.375-In. SP | 1,368 |
| Max. Operating Amps | 6/3 |
| Overall Height | 26-5/8 in |
| Adj. 6 3/8"H Roof Curb Stock No. | 4c453 |
| Standards | AMCA Sound and Air, CSA, UL/cUL 705 |
| Bearing Type | Sealed Pillow Block |
| 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 |
| Application | Industrial and Commercial Applications |
| Overall Length | 24-3/8 in |
| Overall Width | 24-3/8 in |
| Exhaust Airflow @ 0.375 in SP | 1,368 cfm |
| Mount Type | Roof Curb |
| Assembly | Assembled |
| Motor Enclosure | Open Dripproof |
| Base Diameter | Not Applicable |
| Exhaust Airflow @ 0.000 in SP | 1,526 cfm |
| Wheel Diameter | 11 in |
| Cutout Length | 17-1/2 in |
| Safety Features | Birdscreen, Windband |
| Maximum Fan Speed | 1,800 rpm |
| Housing Material Fabrication | Spun |
| Cutout Size | 17-1/2 in L x 17-1/2 in W |
| High-Efficiency Motor | No |
| Frequency | 60 Hz |
| Airflow @ 0.000 in SP | 1,526 cfm |
| Housing Width | 24.4 in |
| Brake Horsepower | 33/100 hp |
| Compatible Curb Manufacturer Part Number | 2RB76, 2ZV82, 4C453, 4C670, 4HX39, 4HX47 |
| Propeller Shaft Diameter | 3/4 in |
| Nameplate Voltage | 115/208-230V AC |
| Motor Horsepower | 0.3333 HP |
| Maximum Static Pressure | 1.25 in wc |
| Damper Size | 15 in x 15 in |
| Sound Level | 10.1 sones @ 1.000 in SP and 5 ft, 10.6 sones @ 0.875 in SP and 5 ft, 10.8 sones @ 0.750 in SP and 5 ft, 11.3 sones @ 0.625 in SP and 5 ft, 12.2 sones @ 0.500 in SP and 5 ft, 12.3 sones @ 0.375 in SP and 5 ft, 12.5 sones @ 0.250 in SP and 5 ft, 12.8 sones @ 0.125 in SP and 5 ft, 13.2 sones @ 0.000 in SP and 5 ft, 9.3 sones @ 1.250 in SP and 5 ft |
| Maximum Ambient Temperature | 180 deg F |
| Spark Resistant Construction Type | A |
| Includes Motor | Yes |
| Current | 5.8/3.1 to 2.9 A |
| Includes Drive Package | Yes |
| Electrical Connection | Power Cord |
| Exhaust Airflow @ 0.250 in SP | 1,419 cfm |
| Base Shape | Square |
| Housing Length | 24.4 in |
| Resistance Properties | Weather Resistant |
| Motor Location | Out of Airstream |
| Exhaust Airflow @ 0.125 in SP | 1,471 cfm |
| Exhaust Airflow @ 0.500 in SP | 1,321 cfm |
| For Air Type | Clean Air |
| For High-Static Pressure Applications | No |
| Overall Diameter | 24-3/8 in |
| Motor Speed | 1,725 rpm |
| Maximum Inlet Air Temperature | 180 deg F |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |