Steel Stud Connection (SSC) Option
The Steel Stud Connection (SSC) Option allows fastening of the damper sleeve (up
to 36 in. W x 36 in. H [914mm x 914m]) directly to the wall's steel stud framing. This
option replaces the angles that were previously required for wall installations.
DFD-150X Types CR, CO & C
DFD-150X dampers with C, CO, CR, and R transitions are available only as single section dampers.
The following chart show minimum and maximum damper size. Dimensions are in inches (mm in parentheses).
C, CO, CR transitions are
positioned 1 in. (25mm)
from bottom of sleeve.
*1
With 2 in. (50mm) offset. Sizes adjust with 1 in.(25mm) offset.
Single Section
Vertical
Single Section
Horizontal
Type CR Type CO & C Type R*
1
Minimum Maximum Minimum Maximum Minimum Maximum
6 31 6 x 5 34 x 31 6 34
(152) (787) (152 x 127) (864 x 787) (152) (864)
6 31 6 x 5 34 X 31 6 34
(152) (787) (152 x 127) (864 X 787) (152)
(864)
inches (mm)
O*
H*
Type C
W*+2
W*
O*
H*
Type CO
W*+2
W*
D*
Type CR
O*
D*+2
31in. (787mm) max.
31 in. (787mm)
Max
Type CType CO
31 in. (787mm)
Max
34 in. (864mm)
Max
34 in. (864mm)
Max
Type CR
34 in. (787mm) max.
Type R
Retaining Bar
Cross-Section A-A
Wallboard
Steel Stud Frame
Steel Stud Wall
Steel Stud
Frame
A-A
Damper
Sleeve
Retaining Bar
Cross-Section A-A
Wallboard
Steel Stud Frame
Steel Stud Wall
Steel Stud
Frame
A-A
Damper
Sleeve
* Dimension are in inches (mm). These dimensions are
furnished approximately 1/4 in. (6mm) undersize.
H or D* O*
5 (127) 8 (203)
6 (152) 9 (229)
7 (178) 10 (254)
8 (203) 11 (279)
9 (229) 12 (305)
10 (254) 13 (330)
11 (279) 14 (356)
12 (305) 15 (381)
13 (330) 16 (406)
14 (356) 17 (432)
15 (381) 19 (483)
16 (406) 20 (508)
17 (432) 21 (533)
18 (457) 22 (559)
19 (483) 23 (584)
20 (508) 24 (610)
21 (533) 25 (635)
22 (559) 27 (686)
23 (584) 28 (711)
24 (610) 29 (737)
25 (635) 30 (762)
26 (660) 31 (787)
27 (686) 32 (813)
28 (711) 33 (838)
29 (737) 34 (894)
30 (762) 35 (889)
31 (787) 36 (914)
Copyright © 2008 Greenheck Fan Corporation
DFD-150X series Rev. 13 July 2008
