SSDFD-155 Type CR, CO, C, & R
The following chart show minimum and maximum damper size. Dimensions are in inches (mm in parentheses).
Size Limitations
| Type CR | Type CO & C | Type R*1 | ||||
inches (mm) |
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Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | ||
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Single section | 3 | 25 | 3 x 3 | 28 x 25 | 3 | 29 | |
Vertical | (76) | (635) | (76 x 76) | (711 x 635) | (76) | (737) | |
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*1 With 2 in. (50mm) offset. Sizes adjust with | 0 offset & 1 in. (25mm) offset. |
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Maximum Single Section
Dimensions
Type C | Type CO | ||||
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25 in. (635mm) | 25 in. (635mm) |
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Max. | Max. |
28 in. | 28 in. |
(711mm) | (711mm) |
Max. | Max. |
C, CO, CR transitions
are positioned 1
in.(25mm) from bottom
of sleeve.
Type CR | Type R |
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25 in. |
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| 29 in. |
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(635mm) |
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Max.
Type R transition is centered on damper frame. Dimensions are with 2 in. (50mm) offset.
Overall Damper Dimensions
D*+2
Type CR
O*
D* 
W*+2
Type CO
O*
H*
W*
W*+2
Type C
O*
H*
W*
H* or D* | O* |
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3 (76) | 6 (152) |
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4 (102) | 7 (178) |
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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) |
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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) |
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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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*Dimensions are in inches (mm). These dimensions are furnished approximately 1/4 in. (6mm) undersize.
Copyright © 2006 Greenheck Fan Corporation
