Typical Installation
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Fan to Curb Mounting
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Size | Size | Per Side | Fasteners |
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060 - 141 | 098 - 161 | 3 | 12 |
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150 - 180 | 180 - 300 | 5 | 20 |
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Fan to curb tie down is not required to meet 150 MPH wind loads for size 240 and smaller.
Fasteners | Total | ||
Size | Size | Per Side | Fasteners |
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060 - 161 | 098 - 161 | 3 | 12 |
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180 - 200 | 180 - 240 | 5 | 20 |
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- | 300 | 9 | 36 |
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Model
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Tie Down is optional on sizes 060 - 240
Fastener
Model
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Fastener
Fasteners on each side of the fan are to be installed with one fastener 4 inches (102 mm) from each edge and one fastener centered. The remaining fasteners are to be equally spaced.
Typical Installation
Concrete Deck Anchoring
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| Outside of Roof Curb |
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| (1 inch (25 mm) less than |
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| Fan Curb Cap) |
1¼ inch (32 mm) |
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| 1 inch (25 mm) Insulation | ||
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| 8 to 18 inches |
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| 1¼ inch |
| (203 to 457 mm) |
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| (Optional 24 inch |
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| (32 mm) |
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| (610 mm) SD Curb) |
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| Minimum Concrete |
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| Strength of 2000 PSI |
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Corner Detail |
| Minimum 1¾ inch |
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| (44 mm) edge distance |
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| 5 inch (127 mm) Mounting Flange | |
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| Outside Flange |
Use 3/8 inch (10 mm) expansion anchor or equal into concrete.
Fasteners one on each corner as detailed.
Each side at center of unit. Maximum fastener spacing of 8 inches (203 mm), add additional fasteners to satisfy.
2½ inch (64 mm)
Embedment Recommended.
Minimum 15/8 inch (41 mm).
Center fasteners on flange
Fan Curb Cap | Roof Opening | Fasteners | Outside Flange | |||||||||||
Size | Size | Size | Size | Per Side | ||||||||||
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060 - 075 |
| - | 060 - 075 |
| - | 17 x 17 (432 x 432) | 10½ x 10½ (267 x 267) | 5 | 26 x 26 (660 x 660) | |||||
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080 | - 095 |
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| - | 17 x 17 (432 x 432) | 12½ x 12½ (318 x 318) | 5 | 26 x 26 (660 x 660) | |||
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| - | 19 x 19 (483 x 483) | 12½ x 12½ (318 x 318) | 5 | 28 x 28 (711 x 711) | |||
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101 | - 121 | 071 - 131 | 098 - 131 | 098 - 131 | 19 x 19 (483 x 483) | 14½ x 14½ (368 x 368) | 5 | 28 x 28 (711 x 711) | ||||||
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131 | - 141 | 141 | - 161 | 141 | - 161 | 141 | - 161 | 22 x 22 (559 x 559) | 18½ x 18½ (470 x 470) | 5 | 31 x 31 (787 x 787) | |||
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150 |
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| - | 26 x 26 | (660 x 660) | 18½ x 18½ (470 x 470) | 5 | 35 x 35 | (889 x 889) | ||
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160 | - 180 | 180 - 200 | 180 - 200 | 180 - 200 | 30 x 30 | (762 x 762) | 20½ x 20½ (521 x 521) | 7 | 39 x 39 | (991 x 991) | ||||
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| - | 220 | - 240 |
| - | 220 | - 240 | 34 x 34 | (864 x 864) | 26½ x 26½ (673 x 673) | 7 | 43 x 43 | (1092 x 1092) | |
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| - | 260 | - 300 |
| - | 300 | 40 x 40 | (1016 x 1016) | 32½ x 32½ (826 x 826) | 7 | 49 x 49 | (1245 x 1245) | ||
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4All dimensions in inches (millimeters).
