Pre-Installation Checks
•Check chart below for correct wall opening dimensions.
•Check motor voltage and amperage rating for compatibility with electrical supply. Supply wiring must be properly fused and conform to local and national codes.
•Motor load amperage must be checked and compared to nameplate rating to avoid serious damage to motor when speed is increased.
Wall Opening Requirements
Wall opening size and
Fans mounted to the wall require a different wall opening (W.O.) size than those mounted in collars or wall housings.
Figure 1 and 2 show the wall opening (W.O.) required for installations with either a wall housing or collar.
Figure 3 shows the recommended wall opening (W.O.) and the minimum distance (M) suggested between the fan and damper for direct to wall installations.
Figure 4 shows the dimensions and wall opening (W.O.) required for installations with a filtered supply wall housing.
W.O.
W.O.
Figure 1 - Wall Housing Installation
Figure 2 - Wall Collar Installation
W.O.
Wall Housing
A
Filter |
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Section | INTERIOR |
| EXTERIOR | Optional 90º |
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| Weatherhood |
| Filters |
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| Airflow |
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M 
Figure 3 - Direct to Wall Installation
C | 24 in. | 15 in. | Wall | Optional |
| B |
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Figure 4 - Filtered Supply Wall Housing Installation | ||||
| Damper | Recommended Wall Opening (W.O.) |
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| Filtered Supply Wall Housing Only | |||||
Fan |
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Size | Size |
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Figures 1 |
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Square | Figure 3 | Figure 4 | A | B | C |
| Filter Quantity & Size | |||
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8 | 10 (254) | 141/4 (362) | 101 (267) | - | 6 (152) | - | - | - |
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10 | 12 (305) | 161/4 (413) | 121 (318) | - | 6 (152) | - | - | - |
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12 | 14 (356) | 191/4 (489) | 141 (368) | - | 7 (178) | - | - | - |
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14 | 16 (406) | 211/4 (540) | 161 (419) | - | 8 (203) | - | - | - |
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16 | 18 (457) | 231/4 (591) | 181 (470) | - | 9 (229) | - | - | - |
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18 | 20 (508) | 251/4 (641) | 201 (521) | - | 10 (254) | - | - | - |
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20 | 22 (559) | 271/4 (692) | 221 (572) | - | 12 (305) | - | - | - |
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24 | 26 (660) | 333/4 (857) | 261 (673) | 333⁄4 (857) | 13 (330) | 321⁄4 (819) | 63 (1600) | 24 (610) | 4 | 231⁄4 x 161⁄4 (591 x 413) |
30 | 32 (813) | 393/4 (1010) | 321 (826) | 393⁄4 (1010) | 13 (330) | 381⁄4 (972) | 65 (1651) | 26 (660) | 4 | 245⁄8 x 191⁄4 (625 x 489) |
36 | 38 (965) | 453/4 (1162) | 381 (978) | 453⁄4 (1162) | 14 (356) | 441⁄4 (1124) | 671⁄4 (1708) | 281/4 (718) | 6 | 231⁄4 x 221⁄8 (591 x 562) |
42 | 44 (1118) | 513/4 (1314) | 441 (1130) | 513⁄4 (1314) | 15 (381) | 501⁄8 (1273) | 727⁄8 (1851) | 34 (864) | 6 | 241⁄8 x 251⁄8 (613 x 638) |
48 | 50 (1270) | 573/4 (1467) | 501 (1283) | 573⁄4 (1467) | 16 (406) | 561⁄8 (1426) | 727⁄8 (1851) | 34 (864) | 12 | 231⁄4 x 183⁄4 (591 x 476) |
54 | 56 (1422) | 633/4 (1619) | 561 (1435) | 633⁄4 (1619) | 17 (432) | 623⁄8 (1584) | 7911⁄16 (2024) | 4011⁄16 (1033) | 12 | 231⁄4 x 203⁄4 (591 x 527) |
60 | 62 (1575) | 693/4 (1772) | 621 (1588) | - | 19 (483) | - | - | - |
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72 | 74 (1880) | 843/4 (2153) | 741 (1892) | - | 19 (483) | - | - | - |
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All dimensions given in inches (millimeters). Filters are 2 inch (51 mm) nominal thickness. Above filter sizes are actual dimensions.
Sidewall Propeller Fans • Exhaust, Supply and Filtered Supply 3
®
