ECOM Symbol ECOM Symbol

5BDD24HX-A Downblast Roof Fan

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

Item Number: 46951

• 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) 230 V
Voltage type AC
Frequency 60 Hz
Phase(s) 3~
Input power 1,715 W
Nominal power at shaft (P2) 2 hp
Input current 2.8 A
Impeller speed 877 r.p.m.
Air flow max 7,492 cfm
Temperature of transported air max 170 °F
Max temperature of transported air, when speed controlled 170 °F
Dimensions and weights
Weight 259 lb
Images Wiring - 5BDD24HX-A Downblast Roof Fan - Fantech
Images Dimensions - 5BDD24HX-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

5ACC 02MS Motor Disc. Switch - Fantech Item Number: 47183 5ACC 02MS Motor Disc. Switch

NEMA I Disconnect Switch 3 Pole

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5ACC27RD Roof Mount Damper - Fantech Item Number: 47220 5ACC27RD Roof Mount Damper

27"x27" square damper

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5ACC32FS Fixed Non-Vented Curb - Fantech Item Number: 47226 5ACC32FS Fixed Non-Vented Curb

Fixed Curb 34" Sq Base Ventilator,8" H,29.5" Sq,32.5" Outer

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5ACC32FT Fixed Non-Vented Curb - Fantech Item Number: 47227 5ACC32FT Fixed Non-Vented Curb

Fixed Curb 34" Sq Base Ventilator,12" Ht,29.5" Sq,32.5" Oute

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