This product has been discontinued

5BDD20HX-A Downblast Roof Fan

20" Belt Drive Downblast Roof Fan, 2 HP, 208-220/460v, 3~

Item Number: 46941

• All ventilators are UL 705 Standard listed
• Durable spun aluminum construction with steel support braces
• Inlet temperatures up to 170°F
• Backward inclined aluminum fan wheel
• Equipped with a built-in bird screen to protect discharge
• Externally cooled motor compartment

Roof mounted belt drive downblast ventilators are designed to exhaust air out of commercial and industrial buildings. All models are for roof mounting only. Motor and wheel are easily detachable without removing ventilator from curb. Permanently lubricated ball bearings (5BDD10 - 5BDD13) and regreasable pillow block bearings (5BDD15 - 5BDD24).

Welded curb cap corners eliminate water entry into ducts or building. Ball bearing motors and variable pitch drives are packed separately when ordered with ventilators.

Technical parameters

Norminal data
Voltage (nominal) 440 V
Rated voltage 220 to 440 V
Frequency 60 Hz
Phase(s) 3~
Nominal power at shaft (P2) 2 hp
Impeller speed 1,270 r.p.m.
Air flow max 6,022 cfm
Temperature of transported air max 170 °F
Protection/Classification
Certificate AMCA and cULus Certified
Dimensions and weights
Weight 54 lb
Images Dimensions - 5BDD20HX-A Downblast Roof Fan - Fantech
Model A B C D E

5BDD 10BB-A

19

25 3/4

22 7/8

3

1 1/2

5BDD 12CB-A

22

28

23 3/8

3

1 1/2

5BDD 13DB-A

22

29 3/4

24 5/8

3 1/4

1 1/2

5BDD 15DB-A

26

31 11/16

27 3/8

3 3/4

1 1/2

5BDD 16EB-A

26

33 11/16

27 3/4

4 3/16

1 1/2

5BDD 18FB-A

30

36

29 5/8

4 3/4

1 1/2

5BDD 20GB-A

30

38 1/4

30 1/4

5 1/4

1 1/2

5BDD 24GB-A

34

44 1/4

33

6 11/16

1 1/2

5BDD 24HX-A

34

44 1/4

33

6 11/16

1 1/2

Dimensions in inches