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| Size 27 |
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Fan Size 27” |
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| Minimum Fan RPM (Without VFRB Option) | |||||||||||||||||
Wheel Dia. | 27.0 inches |
| 686 mm |
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| Maximum RPM |
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Inlet Area | 5.20 square feet | 0.483 m2 |
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| 1800 RPM |
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Outlet Area | 4.54 square feet | 0.422 m2 |
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| 1200 RPM |
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Tip Speed | 7.07 x RPM |
| 2.155 |
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Table |
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CFM | Out- |
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| Total Static Pressure |
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Std. | let | 1/4” |
| 3/8” | 1/2” |
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| 1 1/4” | 1 1/2” | 1 3/4” | 2” |
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Air | Vel. | RPM | BHP | RPM BHP | RPM | BHP |
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| RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP |
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3000 | 660 | 510 | 0.2 | 559 | 0.3 | 607 | 0.3 | 657 | 0.4 |
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3500 | 770 | 564 | 0.2 | 607 | 0.3 | 649 | 0.4 | 690 | 0.5 |
| 731 | 0.6 |
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4000 | 881 | 623 | 0.3 | 658 | 0.4 | 697 | 0.5 | 734 | 0.6 |
| 769 | 0.7 | 842 | 0.9 | 918 |
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4500 | 991 | 684 | 0.4 | 715 | 0.5 | 747 | 0.6 | 781 | 0.7 |
| 815 | 0.8 | 878 | 1.0 | 943 |
| 1.2 | 1011 | 1.5 |
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5000 1101 | 746 | 0.5 | 775 | 0.6 | 803 | 0.7 | 832 | 0.8 |
| 863 | 0.9 | 923 | 1.1 | 979 |
| 1.4 | 1038 | 1.6 | 1098 | 1.9 | 1160 | 2.2 |
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5500 1211 | 810 | 0.6 | 836 | 0.7 | 862 | 0.8 | 887 | 0.9 |
| 914 | 1.0 | 970 | 1.3 | 1023 |
| 1.5 | 1075 | 1.8 | 1127 | 2.1 | 1182 | 2.4 |
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6000 1321 | 874 | 0.7 | 898 | 0.8 | 922 | 1.0 | 945 | 1.1 |
| 969 | 1.2 | 1020 | 1.4 | 1070 |
| 1.7 | 1119 | 2.0 | 1166 | 2.3 | 1214 | 2.6 |
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6500 1431 | 939 | 0.9 | 961 | 1.0 | 983 | 1.1 | 1005 | 1.2 |
| 1027 | 1.4 | 1072 | 1.6 | 1119 |
| 1.9 | 1165 | 2.2 | 1210 | 2.5 | 1253 | 2.9 |
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7000 1541 | 1005 | 1.1 | 1026 | 1.2 | 1046 | 1.3 | 1067 | 1.4 |
| 1087 | 1.6 | 1127 | 1.9 | 1170 |
| 2.2 | 1214 | 2.5 | 1256 | 2.8 | 1298 | 3.1 |
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7500 1651 | 1071 | 1.3 | 1090 | 1.4 | 1109 | 1.5 | 1129 | 1.7 |
| 1148 | 1.8 | 1185 | 2.1 | 1224 |
| 2.4 | 1264 | 2.7 | 1305 | 3.1 | 1345 | 3.4 |
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8000 1762 | 1138 | 1.5 | 1156 | 1.6 | 1174 | 1.8 | 1191 | 1.9 |
| 1209 | 2.1 | 1245 | 2.4 | 1280 |
| 2.7 | 1317 | 3.0 | 1355 | 3.4 | 1393 | 3.7 |
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8500 1872 | 1205 | 1.7 | 1221 | 1.9 | 1238 | 2.0 | 1255 | 2.2 |
| 1272 | 2.4 | 1306 | 2.7 | 1338 |
| 3.0 | 1372 | 3.4 | 1407 | 3.7 | 1443 | 4.1 |
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9000 1982 | 1272 | 2.0 | 1287 | 2.2 | 1303 | 2.4 | 1319 | 2.5 |
| 1335 | 2.7 | 1367 | 3.0 | 1399 |
| 3.4 | 1430 | 3.7 | 1462 | 4.1 | 1495 | 4.5 |
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9500 2092 | 1339 | 2.4 | 1354 | 2.5 | 1369 | 2.7 | 1384 | 2.9 |
| 1399 | 3.0 | 1429 | 3.4 | 1459 |
| 3.8 | 1489 | 4.1 | 1518 | 4.5 | 1549 | 4.9 |
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10000 2202 | 1406 | 2.7 | 1420 | 2.9 | 1435 | 3.1 | 1449 | 3.2 |
| 1463 | 3.4 | 1492 | 3.8 | 1521 |
| 4.2 | 1549 | 4.6 | 1577 | 5.0 | 1605 | 5.4 |
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10500 2312 | 1474 | 3.1 | 1487 | 3.3 | 1501 | 3.5 | 1515 | 3.6 |
| 1528 | 3.8 | 1555 | 4.2 | 1583 |
| 4.6 | 1610 | 5.0 | 1637 | 5.5 | 1663 | 5.9 |
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11000 2422 | 1541 | 3.5 | 1554 | 3.7 | 1567 | 3.9 | 1580 | 4.1 |
| 1593 | 4.3 |
| 1619 | 4.7 | 1645 |
| 5.1 | 1671 | 5.5 | 1697 | 6.0 | 1723 | 6.4 |
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11500 2533 | 1609 | 4.0 | 1622 | 4.2 | 1634 | 4.4 | 1646 | 4.6 |
| 1659 | 4.8 |
| 1684 | 5.2 | 1709 |
| 5.6 | 1734 | 6.1 | 1758 | 6.5 | 1783 | 7.0 |
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12000 2643 | 1677 | 4.5 | 1689 | 4.7 | 1701 | 4.9 | 1713 | 5.1 |
| 1725 | 5.3 |
| 1748 | 5.8 | 1772 |
| 6.2 | 1796 | 6.7 | 1820 | 7.1 | 1844 | 7.6 |
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12500 2753 | 1745 | 5.0 | 1756 | 5.3 | 1768 | 5.5 | 1779 | 5.7 |
| 1791 | 5.9 |
| 1813 | 6.4 | 1836 |
| 6.8 | 1859 | 7.3 | 1882 | 7.8 | 1905 | 8.3 |
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13000 2863 | 1813 | 5.6 | 1824 | 5.9 | 1835 | 6.1 | 1846 | 6.3 |
| 1857 | 6.5 |
| 1879 | 7.0 | 1901 |
| 7.5 | 1923 | 8.0 | 1945 | 8.5 | 1967 | 9.0 |
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13500 2973 | 1881 | 6.3 | 1892 | 6.5 | 1902 | 6.7 | 1913 | 7.0 |
| 1923 | 7.2 |
| 1944 | 7.7 | 1966 |
| 8.2 | 1987 | 8.7 | 2008 | 9.2 | 2029 | 9.7 |
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14000 3083 | 1949 | 7.0 | 1959 | 7.2 | 1969 | 7.4 | 1980 | 7.7 |
| 1990 | 7.9 |
| 2010 | 8.4 | 2031 |
| 8.9 | 2051 | 9.4 | 2072 | 10.0 | 2092 | 10.5 |
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14500 3193 | 2017 | 7.7 | 2027 | 7.9 | 2037 | 8.2 | 2047 | 8.4 |
| 2057 | 8.7 |
| 2076 | 9.2 | 2096 |
| 9.7 | 2116 | 10.3 | 2136 | 10.8 | 2155 | 11.3 |
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CFM | Out- |
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Std. | let | 2 1/4” | 2 1/2” | 3” |
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| 5” |
| 5 1/2” | 6” |
| 6 1/2” | ||||||||||
Air | Vel. | RPM | BHP | RPM BHP | RPM | BHP |
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6000 1321 | 1263 | 3.0 | 1313 | 3.3 |
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6500 1431 | 1298 | 3.2 | 1342 | 3.6 | 1435 | 4.3 |
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7000 1541 | 1338 | 3.5 | 1380 | 3.8 | 1463 | 4.6 | 1549 | 5.4 |
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7500 1651 | 1384 | 3.8 | 1421 | 4.1 | 1498 | 4.9 | 1576 | 5.8 |
| 1657 | 6.6 |
| 1740 | 7.6 |
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8000 1762 | 1430 | 4.1 | 1467 | 4.5 | 1538 | 5.3 |
| 1611 | 6.1 |
| 1684 | 7.0 |
| 1760 | 7.9 | 1837 |
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8500 1872 | 1479 | 4.5 | 1514 | 4.9 | 1584 | 5.7 |
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| 1718 | 7.4 |
| 1787 | 8.4 | 1858 |
| 9.4 | 1931 | 10.4 |
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9000 1982 | 1529 | 4.9 | 1563 | 5.3 | 1629 | 6.1 |
| 1694 | 7.0 |
| 1757 | 7.9 |
| 1821 | 8.9 | 1886 |
| 9.9 | 1953 | 10.9 | 2021 | 12.0 | 2090 | 13.2 |
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9500 2092 | 1581 | 5.3 | 1613 | 5.7 | 1677 | 6.6 |
| 1739 | 7.5 |
| 1799 | 8.4 |
| 1859 | 9.4 | 1921 |
| 10.4 | 1982 | 11.5 | 2045 | 12.6 | 2110 | 13.7 |
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10000 2202 | 1635 | 5.8 | 1665 | 6.2 | 1726 | 7.1 |
| 1786 | 3.0 |
| 1845 | 9.0 |
| 1901 | 9.9 | 1959 |
| 11.0 | 2017 | 12.0 | 2075 | 13.2 | 2135 | 14.3 |
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10500 2312 | 1691 | 6.3 | 1719 | 6.7 | 1777 | 7.6 |
| 1835 | 8.6 |
| 1891 | 9.6 |
| 1948 | 10.6 | 2001 |
| 11.6 | 2056 | 12.7 | 2111 | 13.8 | 2166 | 14.9 |
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11000 2422 | 1748 | 6.9 | 1774 | 7.3 | 1828 | 8.2 |
| 1885 | 9.2 |
| 1939 | 10.2 |
| 1993 | 11.2 | 2047 |
| 12.3 | 2097 | 13.4 | 2150 | 14.5 | 2202 | 15.7 |
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11500 2533 | 1808 | 7.5 | 1832 | 7.9 | 1882 | 8.9 |
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| 1989 | 10.9 |
| 2041 | 11.9 | 2092 |
| 13.0 | 2143 | 14.2 | 2191 | 15.2 | 2241 | 16.4 |
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12000 2643 | 1868 | 8.1 | 1890 | 8.5 | 1938 | 9.5 |
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| 1988 | 10.5 |
| 2039 | 11.6 |
| 2090 | 12.7 | 2139 |
| 13.8 | 2189 | 14.9 | 2238 | 16.1 | 2284 | 17.2 |
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12500 2753 | 1928 | 8.8 | 1951 | 9.3 | 1995 | 10.2 |
| 2042 | 11.3 |
| 2091 | 12.3 |
| 2140 | 13.4 | 2188 |
| 14.6 | 2236 | 15.8 | 2283 | 17.0 | 2330 | 18.2 |
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13000 2863 | 1989 | 9.5 | 2011 | 10.0 | 2053 | 11.0 |
| 2098 | 12.1 |
| 2143 | 13.2 |
| 2191 | 14.3 | 2238 |
| 15.4 | 2284 | 16.6 | 2330 | 17.9 | 2375 | 19.1 |
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13500 2973 | 2051 | 10.2 | 2072 | 10.8 | 2114 | 11.8 |
| 2155 | 12.9 |
| 2198 | 14.0 |
| 2242 | 15.2 | 2289 |
| 16.3 | 2333 | 17.5 | 2378 | 18.8 | 2422 | 20.1 |
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14000 3083 | 2113 | 11.0 | 2133 | 116 | 2174 | 12.7 | 2213 | 13.8 |
| 2254 | 14.9 |
| 2296 | 16.1 | 2341 |
| 17.3 | 2384 | 18.5 | 2427 | 19.8 | 2470 | 21.1 |
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14500 3193 | 2175 | 11.9 | 2195 | 12.5 | 2234 | 13.6 | 2274 | 14.8 |
| 2312 | 15.9 |
| 2352 | 17.1 | 2393 |
| 18.3 | 2436 | 19.5 | 2477 | 20.8 | 2519 | 22.1 |
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15000 3303 | 2238 | 12.8 | 2257 | 13.4 | 2295 | 14.6 | 2333 | 15.8 |
| 2370 | 16.9 |
| 2408 | 18.1 | 2447 |
| 19.4 | 2487 | 20.7 | 2529 | 21.9 | 2569 | 23.3 |
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15500 3414 | 2301 | 13.8 | 2320 | 14.4 | 2357 | 15.6 | 2394 | 16.6 |
| 2430 | 18.0 |
| 2466 | 19.2 | 2503 |
| 20.5 | 2541 | 21.8 | 2580 | 23.1 | 2620 | 24.4 |
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16000 3524 | 2365 | 14.8 | 2383 | 15.4 | 2419 | 16.6 | 2455 | 17.9 |
| 2490 | 19.2 |
| 2524 | 20.4 | 2560 |
| 21.7 | 2596 | 23.0 | 2633 | 24.4 | 2673 | 25.7 |
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16500 3634 | 2429 | 15.9 | 2446 | 16.5 | 2481 | 17.8 | 2516 | 19.0 |
| 2550 | 20.3 |
| 2585 | 21.7 | 2618 |
| 23.0 | 2653 | 24.3 | 2688 | 25.7 | 2724 | 27.1 |
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17000 3744 | 2493 | 17.0 | 2510 | 17.6 | 2544 | 18.9 | 2578 | 20.3 |
| 2611 | 21.6 |
| 2645 | 22.9 | 2677 |
| 24.3 | 2710 | 25.6 | 2744 | 27.0 | 2779 | 28.5 |
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17500 3854 | 2558 | 18.2 | 2574 | 18.9 | 2607 | 20.2 | 2640 | 21.5 |
| 2672 | 22.9 |
| 2705 | 24.3 | 2738 |
| 25.7 | 2768 | 27.0 | 2801 | 28.5 | 2835 | 29.9 |
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Std. | let | 7” |
| 7 1/2” | 8” |
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| 10” | 10 1/2” | 11” |
| 11 1/2” |
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Air | Vel. | RPM | BHP | RPM BHP | RPM | BHP |
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| RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP |
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10000 2202 | 2196 | 15.4 | 2258 | 16.7 | 2319 | 18.0 |
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10500 2312 | 2223 | 16.2 | 2280 | 17.4 | 2339 | 18.6 |
| 2398 | 19.9 |
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11000 2422 | 2255 | 16.9 | 2309 | 18.1 | 2363 | 19.4 |
| 2419 | 20.6 |
| 2475 | 22.0 | 2531 | 23.4 |
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11500 2533 | 2292 | 17.6 | 2342 | 18.9 | 2393 | 20.2 |
| 2445 | 21.5 |
| 2498 | 22.9 | 2551 | 24.2 | 2605 |
| 25.6 | 2659 | 27.1 |
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12000 2643 | 2331 | 18.5 | 2380 | 19.7 | 2428 | 21.0 |
| 2476 | 22.3 |
| 2526 | 23.7 | 2576 | 25.1 | 2627 |
| 26.6 | 2678 | 27.9 | 2730 | 29.4 | 2781 | 31.0 |
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12500 2753 | 2374 | 19.3 | 2420 | 20.6 | 2466 | 21.9 |
| 2513 | 23.3 |
| 2558 | 24.6 | 2606 | 26.0 | 2654 |
| 27.5 | 2702 | 29.0 | 2751 | 30.4 | 2800 | 31.9 |
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13000 2863 | 2420 | 20.4 | 2463 | 21.6 | 2507 | 22.9 |
| 2551 | 24.2 |
| 2596 | 25.6 | 2640 | 27.0 | 2685 |
| 28.5 | 2731 | 30.0 | 2777 | 31.5 | 2823 | 33.0 |
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13500 2973 | 2466 | 21.4 | 2509 | 22.7 | 2552 | 24.0 |
| 2592 | 25.3 |
| 2635 | 26.7 | 2678 | 28.1 | 2721 |
| 29.5 | 2763 | 31.0 | 2807 | 32.6 | 2851 | 34.1 |
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14000 3083 | 2513 | 22.4 | 2555 | 23.8 | 2597 | 25.1 |
| 2638 | 26.5 |
| 2677 | 27.8 | 2718 | 29.2 | 2759 |
| 30.7 | 2801 | 32.2 | 2841 | 33.7 | 2883 | 35.3 |
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14500 3193 | 2561 | 23.5 | 2602 | 24.9 | 2642 | 26.3 |
| 2683 | 27.7 |
| 2723 | 29.1 | 2760 | 30.4 | 2800 |
| 31.9 | 2839 | 33.4 | 2879 | 34.9 |
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15000 3303 | 2609 | 24.6 | 2650 | 26.0 | 2689 | 27.5 |
| 2729 | 28.9 |
| 2768 | 30.4 | 2807 | 31.9 | 2842 |
| 33.2 | 2881 | 34.7 |
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15500 3414 | 2659 | 25.8 | 2698 | 27.2 | 2737 | 28.7 |
| 2776 | 30.2 |
| 2814 | 31.7 | 2852 | 33.2 | 2890 |
| 34.7 |
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16000 3524 | 2711 | 27.1 | 2748 | 28.5 | 2786 | 30.0 |
| 2824 | 31.5 |
| 2861 | 33.0 | 2898 | 34.6 |
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16500 3634 | 2763 | 28.4 | 2799 | 29.9 | 2836 | 31.4 |
| 2873 | 32.9 |
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17000 3744 | 2814 | 29.9 | 2851 | 31.3 | 2887 | 32.8 |
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17500 3854 | 2868 | 31.4 | 2902 | 32.9 |
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Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installationType B: free inlet, ducted outlet. |
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Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream. |
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When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent. | 30 |
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Fan tables cover part of fan operating range; fan curves show full operating range. |
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