Model 1900-B-F – Filtered Hooded Roof Ventilator Exhaust or Supply-Air – Belt Drive
Sizes 24″ to 60″
– Direct Drive Available
– Filter Box Section containing Pleated Merv-8 rated Filters (Throw-Away Type)
– All Aluminum Hood (with Bird Screen)
– Filtered intake or Exhaust Air
- Description
- Cut Sheets and Drawings
Description
APPLICATION
The Model 1900-B-F Filtered Belt Driven Roof Ventilators are specifically designed for supplying filtered exhaust or supply air from your plant spaces.
OUTSTANDING FEATURES
- Standard construction. May be used for exhaust or supply. Special units can be manufactured for both exhaust and supply.
- Heavy industrial construction-steel base with aluminum hood. 1900 Series roof exhausters incorporate standard fans. Steel base is coated with cold galvanizing compound as standard.
- Quiet operation.
- Birdscreen included.
- Self aligning pillow block bearings with locking collars.
- Industrial quality motors – 1900 roof exhauster units are completely assembled and tested at factory before shipping.
NOTE: Hood is packaged separately from fan assembly, to protect hood in transit. - Steel propellers standard. Cast aluminum propellers available.
THE FILTERS WE USE ARE:
- High Capacity, Pleated, MERV 8 rated filters meets ASHRAE 52.2-1999
- 5 times more efficient than fiberglass filters
- 50% more surface area than standard capacity filters extending the service life by 30% and providing reduced resistance
- Filters are made from 100% synthetic media which prevent the fibers from shedding
- UL class 2
- All filters are 2″ thick (H x W change per fan size requirements)
Model Number | Fan Size | Horsepower | Fan Speed | Capacity |
---|---|---|---|---|
1924-B-1F |
24″
|
1
|
780 RPM
|
2807 CFM
|
1930-B-2F |
30″
|
2
|
1140 RPM
|
11,112 CFM
|
1936-B-2F |
36″
|
2
|
720 RPM
|
12,012 CFM
|
1942-B-3F |
42″
|
3
|
550 RPM
|
13,117 CFM
|
1948-B-5F |
48″
|
5
|
465 RPM
|
14,991 CFM
|
1954-B-5F |
54″
|
5
|
410 RPM
|
19,375 CFM
|
1960-B-5F |
60″
|
5
|
423 RPM
|
23,690 CFM
|
Fan Size | Filter Box Size and Number of Rows of Filters | Number and Size of Filters Used |
---|---|---|
24″
|
30” X 30” (2-Rows)
|
(4) 14” X 25” (2) per row
|
30″
|
36” X 36” (4-Rows)
|
(8) 18” X 24” (2) per row
|
36″
|
42” X 42” (4-Rows)
|
(1) 18″ X 24″ per row |
42″
|
48” X 48” (4-Rows)
|
(8) 24” X 24” (2) per row
|
48″
|
54” X 54” (4-Rows)
|
(12) 18” X 24” (3) per row
|
54″
|
60” X 60” (4-Rows)
|
(2) 18″ X 24″ per row
(1) 24″ X 24″ per row (12) Total Filters |
60″
|
66” X 66” (4-Rows)
|
(2) 25″ X 25″ per row
(1) 16″ X 25″ per row (12) Total filters |

Model 1900 B-F Filtered Hooded Roof Ventilator Exhaust or Supply Air Belt Drive Drawing