Sizing Data

DFD-155 Type CR, CO, C, & R

Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size. These multi-section damper assemblies may have slightly less than 100% free area because of the mullions where damper sections join.

The following charts shows minimum and maximum damper section sizes . Dimensions are in inches (mm in parentheses).

C, CO, & CR transitions

are positioned 1 in.(25mm)

from bottom of sleeve.

 

Type CR

Type CO & C

Type R*1

Inches (mm)

 

 

 

 

 

 

Minimum

Maximum

Minimum

Maximum

Minimum

Maximum

 

 

 

 

 

 

 

 

Single Section

3

31

3 x 3

34 x 31

3

34

Vertical

(76)

(787)

(76 x 76)

(864 x 787)

(76)

(864)

 

 

 

 

 

 

 

 

 

 

 

70 x 44

 

 

Multi Section

 

55

 

(1778 x 1118)

 

58

NA

NA

or

NA

Vertical**

(1397)

(1473)

 

 

58 x 55

 

 

 

 

 

 

 

 

 

 

 

(1473 x 1397)

 

 

 

 

 

 

 

 

 

Single Section

3

25

3 x 3

28 x 25

3

28

Horizontal

(76)

(635)

(76 x 76)

(711 x 635)

(76)

(711)

 

 

 

 

 

 

 

Multi Section

NA

31

NA

46 x 31

NA

34

Horizontal**

(787)

(1163 x 787)

(864)

 

 

 

 

 

 

 

 

 

 

Overall Damper Dimensions

D*+2

Type CR

O*

D*

W*+2

Type CO

O*

H*

W*

W*+2

Type C

O*

H*

W*

*1 With 2 in. (50mm) offset. Sizes adjust with 0 offset & 1 in. (25mm) offset. ** Consult factory for number of sections.

Maximum Single Section

Dimensions

Type C

Type CO

31in.

31 in.

(787mm)

(787mm)

Max.

 

Max.

34 in.

34 in.

(864mm)

(864mm)

Max.

Max.

Type R

Type CR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31 in.

34 in. (889mm) max.

 

 

 

 

 

(787mm)

 

 

 

 

 

 

 

Max.

Type R transition is centered on damper frame. Dimensions are with 2 in. (50mm) offset.

*All multiple section dampers, with transitions, will include a factory installed 8 in. (203mm) sleeve.

H or D*

O*

 

H or D*

O*

 

 

 

 

 

 

3

(76)

6 (152)

 

27 (686)

32 (813)

 

 

 

 

 

4 (102)

7 (178)

 

28 (711)

33 (838)

 

 

 

 

 

5 (127)

8 (203)

 

29 (737)

34 (864)

 

 

 

 

 

6 (152)

9 (229)

 

30 (762)

35 (889)

 

 

 

 

 

7 (178)

10 (254)

 

31 (787)

36 (914)

 

 

 

 

 

8 (203)

11 (279)

 

32 (813)

36 (914)

 

 

 

 

 

9 (229)

12 (305)

 

33 (838)

37 (940)

 

 

 

 

 

 

10

(254)

13 (330)

 

34 (864)

38 (965)

 

 

 

 

 

 

11

(279)

14 (356)

 

35 (889)

39 (991)

 

 

 

 

 

 

12

(305)

15 (381)

 

36 (914)

40 (1016)

 

 

 

 

 

 

13

(330)

16 (406)

 

37 (940)

41 (1041)

 

 

 

 

 

 

14

(356)

17 (432)

 

38 (965)

42 (1067)

 

 

 

 

 

 

15

(381)

19 (483)

 

39 (991)

43 (1092)

 

 

 

 

 

 

16

(406)

20 (508)

 

40 (1016)

44 (1118)

 

 

 

 

 

 

17

(432)

21 (533)

 

41 (1041)

45 (1143)

 

 

 

 

 

 

18

(457)

22 (559)

 

42 (1067)

46 (1168)

 

 

 

 

 

 

19

(483)

23 (584)

 

43 (1092)

47 (1194)

 

 

 

 

 

 

20

(508)

24 (610)

 

44 (1118)

48 (1219)

 

 

 

 

 

 

21

(533)

25 (635)

 

45 (1143)

50 (1270)

 

 

 

 

 

 

22

(559)

27 (686)

 

46 (1168)

51 (1295)

 

 

 

 

 

 

23

(584)

28 (711)

 

47 (1194)

52 (1321)

 

 

 

 

 

 

24

(610)

29 (737)

 

48 (1219)

53 (1346)

 

 

 

 

 

 

25

(635)

30 (762)

 

49 (1245)

54 (1372)

 

 

 

 

 

 

26

(660)

31 (787)

 

50 (1270)

55 (1397)

 

 

 

 

 

 

*Dimensions are in inches (mm in parentheses). These dimensions are furnished approximately 1/4 in. (6mm) undersize. (All 'H' dimensions larger than single section height are two sections high. Refer to chart.) Dimension are in inches (mm).

Copyright © 2007 Greenheck Fan Corporation DFD-155 Rev. 9 Sept 2007

Page 2
Image 2
Greenheck Fan installation instructions Sizing Data DFD-155 Type CR, CO, C, & R

DFD-155 specifications

The Greenheck Fan DFD-155 is a high-performance direct drive fan designed specifically for a variety of applications within commercial and industrial facilities. Known for its efficiency and reliability, the DFD-155 stands out as a key component in ventilation and air management systems.

One of the main features of the DFD-155 is its direct drive system. This eliminates the need for belts or pulleys, resulting in less maintenance and improved energy efficiency. Direct drive systems also provide a more compact design, making it easier to integrate the fan into existing layouts or new construction projects.

The DFD-155 is equipped with advanced technologies that enhance its performance. It includes a low-profile design, which reduces space requirements while still delivering high airflow rates. This fan is capable of handling a wide range of airflows, making it suitable for both light and heavy-duty applications. The DFD-155 operates quietly, ensuring minimal noise disruption, which is particularly advantageous in environments requiring focused attention, such as offices or labs.

Constructed from high-quality materials, the DFD-155 is designed for longevity and durability. It features corrosion-resistant coatings, achieving compatibility with various demanding environments, including those with high humidity or corrosive elements. This makes the fan an excellent choice for exhaust applications in kitchens, warehouses, and manufacturing plants.

Energy efficiency is another hallmark of the DFD-155. It meets or exceeds industry standards, helping businesses reduce their operational costs. The fan’s performance is optimized through dynamic balancing and advanced motor control technologies, allowing for smooth operation and lower energy consumption.

Installation and maintenance of the DFD-155 are straightforward. The fan's design allows for easy access to components, which simplifies routine checks and repairs. Additionally, the DFD-155 is compatible with various control systems and can be integrated with Building Management Systems (BMS) for enhanced monitoring and control capabilities.

In summary, the Greenheck Fan DFD-155 excels in performance and reliability while offering a host of features that make it an exceptional choice for ventilation solutions. Its direct drive system, low-profile design, durability, and energy efficiency characteristics make it well-suited for a variety of applications, ensuring optimal air management for any facility.