Sizing Data |
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Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size. These
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) |
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Minimum | Maximum | Minimum | Maximum | Minimum | Maximum | ||
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Single Section | 3 | 31 | 3 x 3 | 34 x 31 | 3 | 34 | |
Vertical | (76) | (787) | (76 x 76) | (864 x 787) | (76) | (864) | |
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| 70 x 44 |
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Multi Section |
| 55 |
| (1778 x 1118) |
| 58 | |
NA | NA | or | NA | ||||
Vertical** | (1397) | (1473) | |||||
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| 58 x 55 |
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| (1473 x 1397) |
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Single Section | 3 | 25 | 3 x 3 | 28 x 25 | 3 | 28 | |
Horizontal | (76) | (635) | (76 x 76) | (711 x 635) | (76) | (711) | |
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Multi Section | NA | 31 | NA | 46 x 31 | NA | 34 | |
Horizontal** | (787) | (1163 x 787) | (864) | ||||
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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 |
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| 31 in. |
34 in. (889mm) max. |
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| 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* | |
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3 | (76) | 6 (152) |
| 27 (686) | 32 (813) |
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4 (102) | 7 (178) |
| 28 (711) | 33 (838) | |
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5 (127) | 8 (203) |
| 29 (737) | 34 (864) | |
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6 (152) | 9 (229) |
| 30 (762) | 35 (889) | |
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7 (178) | 10 (254) |
| 31 (787) | 36 (914) | |
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8 (203) | 11 (279) |
| 32 (813) | 36 (914) | |
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9 (229) | 12 (305) |
| 33 (838) | 37 (940) | |
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10 | (254) | 13 (330) |
| 34 (864) | 38 (965) |
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11 | (279) | 14 (356) |
| 35 (889) | 39 (991) |
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12 | (305) | 15 (381) |
| 36 (914) | 40 (1016) |
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13 | (330) | 16 (406) |
| 37 (940) | 41 (1041) |
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14 | (356) | 17 (432) |
| 38 (965) | 42 (1067) |
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15 | (381) | 19 (483) |
| 39 (991) | 43 (1092) |
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16 | (406) | 20 (508) |
| 40 (1016) | 44 (1118) |
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17 | (432) | 21 (533) |
| 41 (1041) | 45 (1143) |
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18 | (457) | 22 (559) |
| 42 (1067) | 46 (1168) |
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19 | (483) | 23 (584) |
| 43 (1092) | 47 (1194) |
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20 | (508) | 24 (610) |
| 44 (1118) | 48 (1219) |
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21 | (533) | 25 (635) |
| 45 (1143) | 50 (1270) |
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22 | (559) | 27 (686) |
| 46 (1168) | 51 (1295) |
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23 | (584) | 28 (711) |
| 47 (1194) | 52 (1321) |
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24 | (610) | 29 (737) |
| 48 (1219) | 53 (1346) |
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25 | (635) | 30 (762) |
| 49 (1245) | 54 (1372) |
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26 | (660) | 31 (787) |
| 50 (1270) | 55 (1397) |
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*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
