DFD-150X Types CR, CO & C
The following chart show minimum and maximum damper size. Dimensions are in inches (mm in parentheses).
| inches (mm) | Type CR | Type CO & C |
| Type R*1 | |||
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| Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | |
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| Single Section | 6 | 31 | 6 x 5 | 34 x | 31 | 6 | 34 |
| Vertical | (152) | (787) | (152 x 127) | (864 x | 787) | (152) | (864) |
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| Single Section | 6 | 31 | 6 x 5 | 34 X 31 | 6 | 34 | |
| Horizontal | (152) | (787) | (152 x 127) | (864 X 787) | (152) | (864) | |
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D*+2
Type CR
O*
D* 
W*+2
Type CO
*1 With 2 in. (50mm) offset. Sizes adjust with 1 in.(25mm) offset.
C, CO, CR transitions are positioned 1 in. (25mm) from bottom of sleeve.
Type R | Type CR |
O*
H*
W*
W*+2
Type C
O*
H*
W*
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34 |
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| max. | 31in. (787mm) | max. | |||
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Type C | Type CO | ||||||||||
H or D* | O* |
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5 (127) | 8 (203) |
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6 (152) | 9 (229) |
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7 (178) | 10 (254) |
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8 (203) | 11 (279) |
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9 (229) | 12 (305) |
31 in. (787mm) Max
34 in. (864mm) Max
31 in. (787mm) |
Max |
34 in. (864mm) Max
10 (254) | 13 (330) |
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11 (279) | 14 (356) |
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12 (305) | 15 (381) |
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13 (330) | 16 (406) |
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14 (356) | 17 (432) |
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15 (381) | 19 (483) |
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16 (406) | 20 (508) |
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.
Steel Stud | Wallboard |
Frame | Steel Stud Frame |
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Retaining Bar | Damper |
| Sleeve |
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17 (432) | 21 (533) |
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18 (457) | 22 (559) |
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19 (483) | 23 (584) |
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20 (508) | 24 (610) |
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21 (533) | 25 (635) |
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22 (559) | 27 (686) |
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23 (584) | 28 (711) |
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24 (610) | 29 (737) |
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25 (635) | 30 (762) |
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26 (660) | 31 (787) |
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27 (686) | 32 (813) |
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28 (711) | 33 (838) |
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29 (737) | 34 (894) |
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30 (762) | 35 (889) |
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31 (787) | 36 (914) |
| * Dimension are in inches (mm). These dimensions are |
Steel Stud Wall | furnished approximately 1/4 in. (6mm) undersize. |
Copyright © 2008 Greenheck Fan Corporation
