| Property | Value |
|---|---|
| Item - Roof Ventilators | Downblast Ventilator |
| Drive Package With Motor Included | No |
| Duty Rating - Roof Ventilators | Standard |
| Drive Type - Roof Ventilators | Belt Drive |
| Mounting Location - Roof Ventilators | Roof |
| Number of Speeds | 1 |
| Base Size - Roof Ventilators | 42 in x 42 in |
| Recommended 12 In. Fixed Curb Item No. | 2RB81 |
| CFM Range | 6005 to 10,784 @ 0.0 in SP |
| Max. Inlet Temp. | 180 Degrees |
| Includes | NEMA 1 Junction Box |
| Item | Centrifugal Downblast Roof Exhaust Fan |
| Dimension D | 8 1/4 in |
| Motor HP Range | 1/2 to 3 |
| Dimension C | 36 in |
| RPM Range | 465 to 835 |
| Mounting Location | Roof |
| Dimension B | 50 in |
| Drive Type | Belt Drive |
| Shaft Dia. Wheel End | 1 in |
| Recommended Damper Size (In.) | 35 x 35 |
| Dimension A | 42 in |
| Standards | AMCA Sound and Air, UL/cUL 705 |
| Bearing Type | Regreasable Pillow Block |
| Requires | Roof curb for new installations |
| Base Height | 1.8 in |
| Shaft Dia. Sheave End | 1 in |
| Overall Dia. | 50 in |
| Adj. 12 3/8 | 2ZV85 |
| Base Length | 42 in |
| Wheel Type | Backward Inclined |
| Recommended Damper Stock No. | 4HX69 |
| Housing Material | Aluminum |
| Base Width | 42 in |
| Wheel Material | Aluminum |
| Adj. 6 3/8 | 3C438 |
| Wheel Dia. | 26 1/2 in |
| Overall Height | 37 3/4 in |
| Speed Controllable | No |
| Overall Width | 36 in |
| 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 Buildings |
| Overall Length | 50 in |
| Material | Aluminum Blade with Aluminum Housing |
| For Airflow (Dependent on Motor) | 2,322 cfm to 10,784 cfm |
| Base Dimension | 42 in Square |
| For Air Type | Clean Air |
| Assembly | Unassembled |
| Sound Level | Fan RPM 465: 11.4 sones @ 0.000 in SP and 5 ft, 10.9 sones @ 0.125 in SP and 5 ft, 10.4 sones @ 0.250 in SP and 5 ft, 10.1 sones @ 0.375 in SP and 5 ft, 9.6 sones @ 0.500 in SP and 5 ft, 9.5 sones @ 0.625 in SP and 5 ft, Fan RPM 520: 12.9 sones @ 0.000 in SP and 5 ft, 12.1 sones @ 0.125 in SP and 5 ft, 11.3 sones @ 0.250 in SP and 5 ft, 10.9 sones @ 0.375 in SP and 5 ft, 10.3 sones @ 0.500 in SP and 5 ft, 9.6 sones @ 0.625 in SP and 5 ft, 9.4 sones @ 0.750 in SP and 5 ft, Fan RPM 580: 14.4 sones @ 0.000 in SP and 5 ft, 13.7 sones @ 0.125 in SP and 5 ft, 13.0 sones @ 0.250 in SP and 5 ft, 12.6 sones @ 0.375 in SP and 5 ft, 12.2 sones @ 0.500 in SP and 5 ft, 11.6 sones @ 0.625 in SP and 5 ft, 11.0 sones @ 0.750 in SP and 5 ft, 10.3 sones @ 0.875 in SP and 5 ft, Fan RPM 665: 16.7 sones @ 0.000 in SP and 5 ft, 16.2 sones @ 0.125 in SP and 5 ft, 15.8 sones @ 0.250 in SP and 5 ft, 15.3 sones @ 0.375 in SP and 5 ft, 15.0 sones @ 0.500 in SP and 5 ft, 14.6 sones @ 0.625 in SP and 5 ft, 14.2 sones @ 0.750 in SP and 5 ft, 13.8 sones @ 0.875 in SP and 5 ft, 13.3 sones @ 1.000 in SP and 5 ft, 12.8 sones @ 1.250 in SP and 5 ft, Fan RPM 735: 18.9 sones @ 0.000 in SP and 5 ft, 18.6 sones @ 0.125 in SP and 5 ft, 18.3 sones @ 0.250 in SP and 5 ft, 17.9 sones @ 0.375 in SP and 5 ft, 17.6 sones @ 0.500 in SP and 5 ft, 17.2 sones @ 0.625 in SP and 5 ft, 16.8 sones @ 0.750 in SP and 5 ft, 16.5 sones @ 0.875 in SP and 5 ft, 16.2 sones @ 1.000 in SP and 5 ft, 15.6 sones @ 1.250 in SP and 5 ft, 14.9 sones @ 1.500 in SP and 5 ft, Fan RPM 835: 23.0 sones @ 0.000 in SP and 5 ft, 23.0 sones @ 0.125 in SP and 5 ft, 22.0 sones @ 0.250 in SP and 5 ft, 22.0 sones @ 0.375 in SP and 5 ft, 22.0 sones @ 0.500 in SP and 5 ft, 22.0 sones @ 0.625 in SP and 5 ft, 21.0 sones @ 0.750 in SP and 5 ft, 21.0 sones @ 0.875 in SP and 5 ft, 20.0 sones @ 1.000 in SP and 5 ft, 19.9 sones @ 1.250 in SP and 5 ft, 19.7 sones @ 1.500 in SP and 5 ft, 18.7 sones @ 1.750 in SP and 5 ft, 18.6 sones @ 2.000 in SP and 5 ft |
| Maximum Motor Horsepower | 3 hp |
| Housing Width | 50 in |
| Safety Features | Birdscreen, Windband |
| Brake Horsepower | 27/50 hp |
| Minimum Motor Speed | 465 RPM |
| Spark Resistant Construction Type | A |
| Propeller Shaft Diameter | 1 in |
| Maximum Motor Speed | 835 RPM |
| Minimum Motor Horsepower | 1/2 hp |
| Electrical Connection | Power Cord |
| Includes Motor | No |
| Mount Type | Roof Curb |
| Maximum Airflow | 10,784 cfm |
| Cutout Size | 37.5 in L x 37.5 in W |
| Power Source | Electric Motor |
| Base Shape | Square |
| Resistance Properties | Weather Resistant |
| Noise Level @ 0.000 in SP @ 5 ft | 11.4 sones |
| For High-Static Pressure Applications | No |
| Minimum Airflow | 2,322 cfm |
| Maximum Static Pressure | 2 in wc |
| Housing Length | 50 in |
| Maximum Fan Speed | 835 RPM |
| Overall Diameter | 50 in |
| Compatible Curb Manufacturer Part Number | 2RB81, 2ZV85, 3C597, 3C598, 4HX43, 4HX51 |
| Maximum Inlet Air Temperature | 180 Degrees F |
| Cutout Length | 37.5 in |
| Wheel Diameter | 26 in |
| Housing Material Fabrication | Spun |
| Base Diameter | Not Applicable |
| Damper Size | 35 x 35 in |
| Includes Drive Package | No |
| Country of Origin (subject to change) | United States |
| Package Quantity | 1 |
Downblast Less Drive Package, 26-1/2In, Dayton, Mfr#: 5EFH9
$2232,99
Free shipping will be applied on orders over $50
Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Mounting Location Roof, Wheel Diameter 26 in, Base Diameter Not Applicable, Base Length 42 in, Base Width 42 in, Base Shape Square, Minimum Airflow 2,322 cfm, Maximum Airflow 10,784 cfm, Maximum Motor Horsepower 3 hp, Minimum Motor Horsepower 1/2 hp, Minimum Motor Speed 465 RPM, Maximum Motor Speed 835 RPM, Maximum Static Pressure 2 in wc, For High-Static Pressure Applications No
9999 in stock
Must order in multiples of 1
Subtotal:
$2232.99
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