Forward Curve Blowers

Sample Specifications for canada Blower Forward Curve Blower BI Utility Fan Set

• Forward Curve Blower Fan shall be single width, single The Forward Curve Blower fan shall have self-aligning Fan to be arrangement 10, Class I inlet with forward curve blade, ball bearings and the shaft shall or Class I construction. wheel size 8" through 24". be ground and polished solid steel
• CW or CCW rotation as specified.
• The fan shall be of welded and bolted, heavy gauge steel construction coated with NIS-CO Forward Curve Blowers’ electrostatically applied baked polyester coating. The housing shall be easily rotated to any of eight standard positions.
• The Forward Curve Blower fan shall have self-aligning ball bearings and the shaft shall be ground and polished solid steel keywayed on both ends. The fan shall have a heavy duty, ball bearing motor matched to the fan load and furnished at the specified voltage, phase and enclosure.
• The Forward Curve Blower fan shall have a drive with a cast iron adjustable pitch motor sheave. The belts shall be oil and heat resistant.
• Fan to be arrangement 10, Class I or Class I construction.
• All Forward Curve Blower fans to be manufactured in an ISO 9001 Certified Facility ventilating.com fanblower.com highpressureblower.net industrialblowerfan.com industrialfanblower.net industrialfanblower.com pressureblower.net industrialpressureblower.com tenderall.com chicagoblowercanada.com cbblower.com buffaloblower.com buffalofan.com nis-co.com canadianblower.com olegsystems.com canadablower.com abbblower.com acmefan.net industrialblower.net fansandblowers.net americanblower.net barryfan.com cincinnatifan.net canadafans.com barryfan.net.
• All Canada Blower Forward Curve Blower fans shall bear the AMCA seal for air performance.
• Fan to be model “FCB” as manufactured by NIS-CO Blowers (Hot Springs, NC).

NIS-CO Forward Curve Blowers BI Utility Fan Set Performance Tables

FCB-8

TIP SPEED (FPM) = 1.996 x RPM
OUTLET .296 Sq. Ft. Inside / 81/4" x 53/8" Outside
MAX. SPEED = 3006 RPM
WHEEL DIAMETER — 73/4"
INLET .338 Sq. Ft. Inside / 8" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
237 266 296	800 900 1000	758 775 798	0.02 0.03 0.03	909 917 931	0.03 0.04 0.04	— 1049 1055	— 0.05 0.06	— — 1172	— — 0.07	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
326 355 385	1100 1200 1300	825 854 886	0.04 0.04 0.05	949 971 997	0.05 0.06 0.06	1067 1083 1102	0.06 0.07 0.08	1178 1189 1203	0.08 0.08 0.09	1285 1290 1300	0.09 0.10 0.11	— 1388 1394	— 0.12 0.13	— 1482 1485	— 0.13 0.14	— — 1657	— — 0.18
414 444 474	1400 1500 1600	918 955 991	0.06 0.07 0.08	1024 1055 1088	0.07 0.08 0.09	1125 1150 1179	0.09 0.10 0.11	1221 1243 1267	0.10 0.11 0.13	1314 1331 1352	0.12 0.13 0.14	1404 1417 1434	0.14 0.15 0.16	1491 1501 1515	0.15 0.17 0.18	1658 1662 1670	0.19 0.21 0.22
503 533 562	1700 1800 1900	1027 1065 1104	0.09 0.10 0.12	1121 1156 1191	0.11 0.12 0.14	1208 1240 1272	0.12 0.14 0.15	1293 1321 1350	0.14 0.16 0.17	1374 1400 1426	0.16 0.17 0.19	1454 1476 1500	0.18 0.19 0.21	1531 1550 1572	0.20 0.21 0.23	1681 1695 1712	0.24 0.25 0.27
592 651 710	2000 2200 2400	1144 1223 1304	0.13 0.17 0.21	1228 1303 1380	0.15 0.19 0.23	1307 1377 1451	0.17 0.21 0.25	1382 1448 1518	0.19 0.23 0.28	1455 1517 1583	0.21 0.25 0.30	1527 1583 1646	0.23 0.27 0.32	1596 1649 1707	0.25 0.30 0.35	1731 1775 1827	0.29 0.34 0.39
770 829 888	2600 2800 3000	1388 1471 1556	0.26 0.32 0.38	1461 1541 1623	0.28 0.34 0.41	1528 1606 1684	0.31 0.37 0.44	1592 1667 1743	0.33 0.39 0.46	1654 1726 1800	0.36 0.42 0.49	1713 1783 1854	0.38 0.45 0.52	1771 1838 1908	0.41 0.47 0.55	1884 1946 2011	0.46 0.53 0.60
947 1006 1066	3200 3400 3600	1640 1726 1813	0.45 0.53 0.62	1705 1789 1874	0.48 0.57 0.66	1765 1846 1930	0.51 0.60 0.69	1822 1901 1983	0.54 0.63 0.73	1876 1954 2034	0.57 0.66 0.76	1929 2004 2083	0.60 0.69 0.80	1980 2054 2131	0.63 0.72 0.83	2079 2149 2223	0.69 0.79 0.90
1125 1184 1243	3800 4000 4200	1900 1986 2073	0.72 0.83 0.96	1958 2043 2129	0.76 0.88 1.00	2013 2097 2181	0.80 0.92 1.04	2064 2147 2229	0.84 0.95 1.08	2114 2195 2276	0.87 0.99 1.12	2162 2241 2321	0.91 1.03 1.16	2207 2286 2365	0.94 1.07 1.20	2297 2371 2449	1.01 1.14 1.28
1302 1362 1421	4400 4600 4800	2162 2251 2339	1.09 1.24 1.40	2215 2303 2389	1.14 1.29 1.45	2265 2351 2437	1.18 1.33 1.50	2312 2399 2483	1.22 1.38 1.55	2358 2443 2526	1.27 1.43 1.59	2402 2485 2567	1.31 1.47 1.64	2445 2527 2608	1.35 1.51 1.69	2527 2606 2686	1.43 1.60 1.78
1480 1539 1598	5000 5200 5400	2428 2516 2605	1.57 1.76 1.96	2477 2565 2652	1.62 1.81 2.02	2523 2610 2696	1.67 1.87 2.07	2568 2653 2738	1.73 1.92 2.13	2610 2695 2779	1.78 1.97 2.18	2651 2735 2818	1.82 2.02 2.23	2690 2774 2856	1.87 2.07 2.29	2766 2847 2929	1.97 2.17 2.39
1658 1717 1776	5600 5800 6000	2695 2783 2874	2.18 2.40 2.65	2742 2830 2918	2.24 2.47 2.72	2784 2872 2959	2.30 2.53 2.79	2826 2912 2999	2.35 2.59 2.85	2865 2951 —	2.41 2.65 —	2903 2988 —	2.46 2.71 —	2941 — —	2.52 — —	— — —	— — —
1835	6200	2963	2.92	3006	2.99	—	—	—	—	—	—	—	—	—	—	—	—

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
444 474 503	1500 1600 1700	1815 1819 1825	0.25 0.27 0.28	— — 1963	— — 0.33	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
533 562 592	1800 1900 2000	1835 1846 1862	0.30 0.32 0.34	1969 1977 1988	0.35 0.37 0.39	2098 2103 2110	0.40 0.42 0.44	— — 2345	— — 0.55	— — —	— — —	— — —	— — —	— — —	— — —
651 710 770	2200 2400 2600	1898 1942 1994	0.39 0.45 0.51	2017 2055 2100	0.44 0.50 0.56	2133 2165 2205	0.49 0.55 0.62	2356 2377 2406	0.61 0.67 0.74	2569 2580 2600	0.73 0.79 0.87	— 2776 2788	— 0.93 1.01	— — 2969	— — 1.15
829 888 947	2800 3000 3200	2050 2109 2174	0.58 0.66 0.75	2151 2206 2266	0.64 0.72 0.81	2250 2300 2357	0.70 0.78 0.88	2442 2485 2533	0.82 0.91 1.01	2628 2662 2703	0.95 1.05 1.15	2808 2834 2868	1.09 1.19 1.29	2982 3002 —	1.24 1.34 —
1006 1066 1125	3400 3600 3800	2241 2311 2382	0.85 0.96 1.08	2329 2396 2464	0.92 1.03 1.15	2416 2480 2545	0.98 1.10 1.23	2585 2642 2701	1.12 1.24 1.37	2748 2799 2853	1.26 1.39 1.53	2907 2952 3000	1.41 1.54 1.68	— — —	— — —
1184 1243 1302	4000 4200 4400	2455 2529 2605	1.21 1.36 1.51	2535 2607 2680	1.29 1.43 1.59	2613 2682 2754	1.36 1.51 1.68	2764 2829 2896	1.52 1.67 1.84	2910 2970 —	1.67 1.84 —	— — —	— — —	— — —	— — —
1362 1421 1480	4600 4800 5000	2683 2760 2839	1.68 1.86 2.06	2755 2832 2909	1.77 1.95 2.15	2828 2901 2977	1.85 2.04 2.24	2966 — —	2.02 — —	— — —	— — —	— — —	— — —	— — —	— — —
1539 1598	5200 5400	2919 2998	2.27 2.49	2987 —	2.36 —	— —	— —	— —	— —	— —	— —	— —	— —	— —	— —

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-9

TIP SPEED (FPM) = 2.356 x RPM
OUTLET .468 Sq. Ft. Inside / 103/4" x 61/2" Outside
MAX. SPEED = 2547 RPM
WHEEL DIAMETER—9" INLET .406 Sq. Ft. Inside / 9" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
374 421 468	800 900 1000	615 635 658	0.03 0.04 0.05	730 741 757	0.04 0.05 0.06	— 841 850	— 0.06 0.07	— — 940	— — 0.09	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
515 562 608	1100 1200 1300	685 714 745	0.06 0.07 0.09	777 801 826	0.07 0.09 0.10	865 883 904	0.09 0.10 0.12	949 962 979	0.10 0.11 0.13	1030 1039 1051	0.12 0.13 0.15	— 1113 1122	— 0.15 0.17	— 1185 1191	— 0.16 0.18	— — 1323	— — 0.22
655 702 749	1400 1500 1600	776 809 842	0.10 0.12 0.14	854 884 915	0.12 0.14 0.16	928 954 981	0.13 0.15 0.18	999 1022 1046	0.15 0.17 0.20	1068 1087 1109	0.17 0.19 0.21	1135 1151 1170	0.19 0.21 0.23	1201 1214 1230	0.20 0.23 0.25	1328 1336 1347	0.24 0.27 0.30
796 842 889	1700 1800 1900	877 911 946	0.16 0.19 0.22	946 978 1011	0.18 0.21 0.24	1011 1041 1072	0.20 0.23 0.26	1073 1100 1130	0.22 0.25 0.28	1133 1158 1185	0.24 0.27 0.30	1192 1214 1239	0.26 0.29 0.33	1249 1270 1292	0.28 0.31 0.35	1361 1377 1396	0.33 0.36 0.39
936 1030 1123	2000 2200 2400	981 1053 1124	0.25 0.32 0.40	1045 1114 1184	0.27 0.35 0.43	1104 1170 1238	0.30 0.37 0.46	1160 1223 1288	0.32 0.40 0.49	1214 1274 1336	0.34 0.42 0.52	1266 1323 1383	0.36 0.45 0.54	1317 1371 1428	0.39 0.47 0.57	1417 1464 1516	0.43 0.52 0.62
1217 1310 1404	2600 2800 3000	1198 1271 1344	0.50 0.61 0.74	1255 1327 1399	0.53 0.65 0.78	1307 1377 1449	0.57 0.68 0.82	1356 1424 1494	0.60 0.72 0.86	1402 1468 1537	0.63 0.75 0.89	1446 1511 1578	0.66 0.78 0.93	1489 1552 1618	0.68 0.81 0.96	1572 1631 1694	0.74 0.88 1.03
1498 1591 1685	3200 3400 3600	1419 1493 1567	0.89 1.05 1.23	1472 1546 1619	0.93 1.10 1.29	1521 1592 1666	0.97 1.14 1.34	1565 1636 1708	1.01 1.19 1.38	1607 1676 1748	1.05 1.23 1.43	1646 1715 1785	1.09 1.27 1.47	1685 1752 1821	1.13 1.31 1.51	1758 1824 1891	1.20 1.39 1.60
1778 1872 1966	3800 4000 4200	1641 1716 1790	1.43 1.66 1.90	1693 1767 1842	1.49 1.72 1.97	1738 1812 1886	1.55 1.78 2.04	1780 1853 1926	1.60 1.84 2.10	1818 1891 1963	1.64 1.89 2.15	1855 1927 1999	1.69 1.94 2.21	1891 1962 2033	1.74 1.99 2.26	1959 2028 2098	1.83 2.08 2.36
2059 2153 2246	4400 4600 4800	1865 1940 2015	2.17 2.46 2.78	1916 1990 2064	2.25 2.55 2.87	1959 2034 2107	2.31 2.62 2.95	1999 2073 2146	2.38 2.69 3.02	2036 2110 2183	2.44 2.75 3.09	2071 2144 2217	2.50 2.81 3.16	2104 2177 2249	2.55 2.87 3.22	2168 2239 2310	2.66 2.99 3.34
2340 2434 2527	5000 5200 5400	2089 2165 2239	3.13 3.50 3.90	2139 2214 2289	3.22 3.60 4.01	2181 2256 2331	3.31 3.69 4.11	2221 2295 2368	3.39 3.78 4.19	2257 2331 2403	3.46 3.86 4.28	2290 2363 2436	3.53 3.93 4.35	2322 2395 2468	3.60 4.00 4.43	2382 2455 2527	3.73 4.14 4.58
2621 2714 2808	5600 5800 6000	2315 2389 2464	4.33 4.79 5.28	2364 2438 2513	4.45 4.92 5.42	2406 2480 —	4.55 5.02 —	2443 2517 —	4.65 5.12 —	2478 — —	4.74 — —	2511 — —	4.82 — —	2542 — —	4.90 — —	— — —	— — —
2902	6200	2540	5.81	—	—	—	—	—	—	—	—	—	—	—	—	—	—

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.		4.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
655 702 749	1400 1500 1600	1449 1453 1459	0.28 0.31 0.34	— 1565 1568	— 0.35 0.38	— — 1673	— — 0.43	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
796 842 889	1700 1800 1900	1469 1481 1497	0.37 0.40 0.44	1574 1583 1594	0.42 0.45 0.49	1676 1681 1690	0.47 0.50 0.54	— 1870 1874	— 0.61 0.65	— — 2048	— — 0.77	— — —	— — —	— — —	— — —	— — —	— — —
936 1030 1123	2000 2200 2400	1514 1554 1600	0.48 0.57 0.68	1608 1643 1684	0.53 0.63 0.74	1701 1729 1765	0.59 0.68 0.80	1879 1897 1924	0.70 0.80 0.92	2049 2059 2077	0.81 0.92 1.04	— 2215 2226	— 1.05 1.18	— — 2370	— — 1.31	— — —	— — —
1217 1310 1404	2600 2800 3000	1653 1708 1767	0.80 0.94 1.10	1731 1782 1838	0.86 1.00 1.16	1808 1855 1907	0.92 1.07 1.23	1958 1997 2043	1.05 1.20 1.37	2103 2135 2174	1.18 1.34 1.52	2244 2270 2302	1.32 1.48 1.67	2382 2402 2428	1.46 1.63 1.82	2516 2530 —	1.61 1.78 —
1498 1591 1685	3200 3400 3600	1829 1891 1957	1.27 1.46 1.68	1897 1957 2020	1.34 1.54 1.76	1963 2021 2082	1.42 1.62 1.84	2092 2145 2201	1.56 1.77 2.01	2217 2265 2316	1.71 1.93 2.17	2340 2382 2429	1.87 2.09 2.34	2460 2497 2539	2.03 2.26 2.51	— — —	— — —
1778 1872 1966	3800 4000 4200	2022 2090 2158	1.91 2.18 2.46	2084 2150 2217	2.00 2.27 2.56	2144 2208 2274	2.09 2.36 2.65	2259 2320 2382	2.26 2.54 2.84	2370 2427 2486	2.43 2.72 3.03	2479 2532 —	2.61 2.90 —	— — —	— — —	— — —	— — —
2059 2153 2246	4400 4600 4800	2227 2298 2368	2.76 3.10 3.46	2285 2354 2422	2.87 3.21 3.57	2339 2407 2475	2.97 3.32 3.69	2445 2510 —	3.17 3.53 —	2546 — —	3.37 — —	— — —	— — —	— — —	— — —	— — —	— — —
2340 2434	5000 5200	2439 2510	3.85 4.27	2492 —	3.97 —	2544 —	4.09 —	— —	— —	— —	— —	— —	— —	— —	— —	— —	— —

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-11

TIP SPEED (FPM) = 2.782 x
RPM OUTLET .636 Sq. Ft. Inside / 113/4" x 8" Outside
MAX. SPEED = 2157 RPM
WHEEL DIAMETER —101/2" INLET .525 Sq. Ft. Inside / 10" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
509 572 636	800 900 1000	522 538 558	0.04 0.05 0.06	621 630 642	0.06 0.07 0.08	— 716 723	— 0.08 0.10	— — 801	— — 0.12	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
700 763 827	1100 1200 1300	580 603 629	0.07 0.09 0.11	659 678 699	0.09 0.11 0.13	734 749 766	0.11 0.13 0.15	807 817 830	0.13 0.15 0.17	877 884 894	0.15 0.17 0.19	— 948 955	— 0.20 0.22	— — 1014	— — 0.24	— — —	— — —
890 954 1018	1400 1500 1600	655 683 711	0.12 0.15 0.17	722 746 772	0.15 0.17 0.20	785 807 830	0.17 0.19 0.22	846 865 885	0.19 0.22 0.25	906 922 939	0.22 0.24 0.27	965 977 992	0.24 0.27 0.30	1022 1032 1044	0.27 0.30 0.33	1131 1137 1145	0.32 0.35 0.39
1081 1145 1208	1700 1800 1900	739 769 798	0.20 0.23 0.26	798 826 853	0.22 0.26 0.29	854 879 905	0.25 0.29 0.32	907 930 954	0.28 0.31 0.35	959 980 1002	0.31 0.34 0.38	1009 1028 1049	0.33 0.37 0.41	1059 1076 1094	0.36 0.40 0.44	1156 1169 1184	0.42 0.46 0.51
1272 1399 1526	2000 2200 2400	828 889 950	0.30 0.38 0.48	882 940 999	0.33 0.42 0.52	932 987 1044	0.36 0.45 0.56	980 1032 1087	0.39 0.49 0.60	1026 1075 1128	0.42 0.52 0.63	1071 1117 1168	0.46 0.56 0.67	1115 1159 1206	0.49 0.59 0.71	1201 1239 1282	0.55 0.66 0.78
1654 1781 1908	2600 2800 3000	1012 1075 1138	0.60 0.73 0.88	1060 1121 1182	0.64 0.78 0.93	1103 1163 1223	0.68 0.82 0.98	1144 1202 1261	0.72 0.87 1.03	1183 1239 1297	0.76 0.91 1.08	1221 1275 1332	0.80 0.96 1.13	1257 1310 1365	0.84 1.00 1.17	1329 1378 1430	0.93 1.09 1.27
2035 2162 2290	3200 3400 3600	1201 1265 1329	1.05 1.24 1.46	1244 1307 1370	1.11 1.31 1.53	1284 1345 1408	1.16 1.37 1.59	1321 1381 1443	1.22 1.42 1.66	1355 1415 1475	1.27 1.48 1.71	1389 1447 1507	1.32 1.53 1.77	1421 1479 1537	1.37 1.59 1.83	1484 1539 1595	1.47 1.69 1.94
2417 2544 2671	3800 4000 4200	1393 1457 1522	1.70 1.97 2.26	1434 1497 1561	1.78 2.04 2.34	1470 1533 1596	1.84 2.12 2.42	1504 1566 1628	1.91 2.19 2.50	1536 1597 1659	1.97 2.26 2.57	1567 1627 1688	2.03 2.32 2.64	1596 1656 1716	2.10 2.39 2.71	1653 1711 1770	2.22 2.52 2.85
2798 2926 3053	4400 4600 4800	1586 1651 1716	2.58 2.92 3.30	1624 1689 1753	2.67 3.02 3.41	1659 1723 1786	2.75 3.11 3.50	1691 1754 1817	2.83 3.20 3.60	1721 1784 1846	2.91 3.28 3.68	1750 1812 1874	2.99 3.36 3.77	1777 1839 1900	3.06 3.44 3.85	1830 1890 1951	3.20 3.59 4.01
3180 3307 3434	5000 5200 5400	1781 1846 1911	3.71 4.16 4.63	1817 1882 1946	3.83 4.27 4.76	1850 1914 1978	3.93 4.38 4.87	1881 1944 2008	4.02 4.49 4.98	1909 1972 2035	4.12 4.58 5.08	1936 1999 2062	4.21 4.68 5.18	1962 2025 2087	4.29 4.77 5.28	2012 2073 2135	4.46 4.95 5.47
3566 3689 3816	5600 5800 6000	1979 2043 2108	5.17 5.70 6.29	2014 2076 2141	5.30 5.84 6.43	2045 2107 —	5.42 5.97 —	2074 2136 —	5.53 6.09 —	2101 — —	5.64 — —	2127 — —	5.75 — —	2152 — —	5.85 — —	— — —	— — —

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.		4.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
954 1018 1081	1500 1600 1700	1238 1243 1250	0.42 0.45 0.49	— 1337 1341	— 0.52 0.56	— — 1429	— — 0.63	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
1145 1208 1272	1800 1900 2000	1259 1271 1284	0.53 0.57 0.62	1347 1356 1366	0.60 0.65 0.70	1433 1438 1446	0.67 0.72 0.77	— 1597 1601	— 0.87 0.93	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
1399 1526 1654	2200 2400 2600	1317 1355 1398	0.73 0.86 1.01	1393 1426 1465	0.81 0.94 1.09	1468 1497 1531	0.89 1.02 1.18	1614 1634 1661	1.05 1.20 1.36	1754 1767 1787	1.23 1.38 1.55	— 1896 1910	— 1.57 1.74	— — 2029	— — 1.95	— — —	— — —
1781 1908 2035	2800 3000 3200	1444 1493 1544	1.17 1.36 1.57	1508 1553 1602	1.26 1.45 1.67	1570 1613 1659	1.35 1.55 1.77	1693 1730 1770	1.54 1.75 1.97	1813 1843 1878	1.74 1.95 2.19	1929 1954 1984	1.94 2.16 2.40	2043 2063 2088	2.15 2.38 2.63	2154 — —	2.37 — —
2162 2290 2417	3400 3600 3800	1596 1651 1707	1.80 2.05 2.33	1653 1705 1759	1.90 2.17 2.45	1707 1758 1810	2.01 2.28 2.57	1814 1860 1909	2.23 2.50 2.81	1917 1959 2004	2.44 2.73 3.05	2019 2057 2097	2.67 2.97 3.29	2118 2152 —	2.91 3.21 —	— — —	— — —
2544 2671 2798	4000 4200 4400	1764 1821 1880	2.64 2.98 3.34	1814 1870 1928	2.77 3.11 3.48	1864 1919 1974	2.89 3.24 3.62	1959 2011 2064	3.14 3.50 3.89	2051 2100 2150	3.39 3.76 4.16	2141 — —	3.64 — —	— — —	— — —	— — —	— — —
2926 3053 3180	4600 4800 5000	1939 1999 2059	3.74 4.17 4.63	1986 2044 2104	3.89 4.32 4.79	2032 2089 2147	4.03 4.47 4.94	2119 — —	4.31 — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
3307	5200	2119	5.12	—	—	—	—	—	—	—	—	—	—	—	—	—	—

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-12

TIP SPEED (FPM) = 3.207 x RPM OUTLET .858 Sq. Ft. Inside / 131/4" x 95/8" Outside
MAX. SPEED = 1871 RPM
WHEEL DIAMETER —121/4" INLET .921 Sq. Ft. Inside / 131/4" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
686 772 858	800 900 1000	431 446 464	0.06 0.07 0.08	513 519 531	0.08 0.09 0.11	— — 596	— — 0.13	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
944 1030 1115	1100 1200 1300	485 508 531	0.10 0.12 0.15	546 564 584	0.13 0.15 0.17	606 619 635	0.15 0.17 0.20	665 674 686	0.18 0.20 0.23	— 728 737	— 0.23 0.26	— — 787	— — 0.29	— — —	— — —	— — —	— — —
1201 1287 1373	1400 1500 1600	555 581 606	0.18 0.21 0.24	606 628 652	0.20 0.24 0.28	654 674 696	0.23 0.27 0.31	701 719 738	0.26 0.30 0.34	748 763 779	0.29 0.33 0.37	795 807 821	0.33 0.37 0.41	842 850 862	0.36 0.40 0.45	— 938 944	— 0.48 0.52
1459 1544 1630	1700 1800 1900	633 659 686	0.29 0.33 0.38	677 702 727	0.32 0.36 0.42	718 742 766	0.35 0.40 0.45	758 780 803	0.39 0.44 0.49	798 818 839	0.42 0.47 0.53	837 855 874	0.46 0.51 0.57	876 892 909	0.50 0.55 0.61	953 965 979	0.57 0.63 0.69
1716 1888 2059	2000 2200 2400	713 767 822	0.43 0.56 0.70	753 806 860	0.47 0.60 0.75	790 841 893	0.51 0.65 0.80	826 875 925	0.55 0.69 0.85	861 907 956	0.59 0.73 0.90	895 939 985	0.63 0.78 0.94	928 970 1014	0.67 0.82 0.99	995 1031 1071	0.76 0.91 1.09
2231 2402 2574	2600 2800 3000	878 934 990	0.87 1.07 1.29	914 969 1024	0.93 1.13 1.36	946 1000 1054	0.98 1.19 1.43	977 1029 1083	1.04 1.25 1.49	1006 1057 1110	1.09 1.30 1.55	1034 1084 1136	1.14 1.36 1.61	1062 1111 1161	1.19 1.41 1.67	1115 1161 1210	1.29 1.52 1.79
2746 2917 3089	3200 3400 3600	1046 1103 1160	1.55 1.84 2.16	1080 1135 1192	1.63 1.92 2.25	1110 1164 1220	1.70 2.00 2.33	1137 1192 1247	1.76 2.07 2.41	1163 1217 1271	1.83 2.14 2.49	1188 1241 1295	1.89 2.21 2.56	1213 1265 1318	1.96 2.28 2.63	1259 1310 1361	2.08 2.41 2.78
3260 3432 3603	3800 4000 4200	1216 1273 1330	2.51 2.91 3.34	1247 1304 1361	2.61 3.01 3.46	1276 1332 1388	2.70 3.11 3.56	1302 1357 1413	2.79 3.20 3.66	1326 1381 1436	2.87 3.29 3.75	1349 1404 1458	2.95 3.38 3.84	1371 1425 1480	3.03 3.46 3.93	1413 1467 1520	3.18 3.62 4.11
3775 3947 4118	4400 4600 4800	1387 1445 1502	3.81 4.33 4.89	1417 1474 1531	3.94 4.47 5.04	1444 1501 1557	4.05 4.59 5.17	1469 1525 1581	4.16 4.70 5.29	1492 1548 1603	4.26 4.81 5.40	1513 1569 1624	4.36 4.91 5.51	1534 1589 1644	4.45 5.02 5.62	1574 1628 1682	4.64 5.21 5.83
4290 4462 4633	5000 5200 5400	1559 1617 1674	5.51 6.17 6.88	1588 1645 1702	5.66 6.33 7.05	1614 1671 1727	5.80 6.48 7.20	1637 1694 1750	5.93 6.61 7.35	1659 1716 1772	6.05 6.74 7.49	1680 1736 1792	6.17 6.87 7.62	1700 1756 1811	6.28 6.99 7.75	1738 1793 1848	6.50 7.22 7.99
4805 4976 5148	5600 5800 6000	1732 1789 1847	7.64 8.46 9.33	1760 1817 —	7.82 8.65 —	1784 1841 —	7.99 8.82 —	1807 1864 —	8.14 8.99 —	1828 — —	8.29 — —	1848 — —	8.43 — —	1868 — —	8.56 — —	— — —	— — —

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.		4.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1373 1459 1544	1600 1700 1800	1026 1030 1038	0.61 0.66 0.72	— — 1111	— — 0.81	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
1630 1716 1888	1900 2000 2200	1048 1061 1091	0.78 0.85 1.00	1117 1127 1151	0.87 0.94 1.10	1186 1192 1211	0.97 1.04 1.21	— — 1331	— — 1.43	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
2059 2231 2402	2400 2600 2800	1127 1168 1211	1.19 1.40 1.63	1183 1219 1259	1.29 1.50 1.75	1238 1270 1307	1.39 1.61 1.86	1347 1372 1402	1.62 1.85 2.10	1457 1473 1496	1.86 2.09 2.36	— 1574 1590	— 2.36 2.63	— — 1684	— — 2.91	— — 1777	— — 3.21
2574 2746 2917	3000 3200 3400	1257 1304 1353	1.90 2.21 2.54	1303 1348 1395	2.02 2.33 2.68	1348 1391 1436	2.14 2.46 2.81	1437 1475 1517	2.39 2.72 3.08	1525 1559 1595	2.66 2.99 3.36	1613 1641 1674	2.93 3.27 3.65	1701 1724 1751	3.22 3.57 3.96	1788 1806 1829	3.52 3.88 4.27
3089 3260 3432	3600 3800 4000	1403 1454 1506	2.92 3.33 3.78	1444 1493 1544	3.06 3.48 3.94	1483 1531 1581	3.20 3.63 4.10	1560 1605 1652	3.48 3.92 4.41	1635 1677 1721	3.78 4.23 4.72	1710 1748 1789	4.08 4.54 5.05	1783 1819 1857	4.39 4.86 5.38	1857 — —	4.71 — —
3603 3775 3947	4200 4400 4600	1558 1611 1665	4.28 4.82 5.40	1595 1647 1700	4.44 4.99 5.58	1631 1682 1734	4.61 5.16 5.76	1700 1749 1799	4.93 5.51 6.13	1767 1814 1862	5.26 5.85 6.48	1832 — —	5.60 — —	— — —	— — —	— — —	— — —
4118 4290 4462	4800 5000 5200	1719 1773 1828	6.03 6.71 7.44	1753 1807 1861	6.22 6.91 7.66	1786 1839 —	6.41 7.12 —	1850 — —	6.79 — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-13

TIP SPEED (FPM) = 3.534 x RPM OUTLET 1.049 Sq. Ft. Inside / 145/8" x 103/4" Outside
MAX. SPEED = 1698 RPM
WHEEL DIAMETER —131/2" INLET 1.108 Sq. Ft. Inside / 141/2" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
839 944 1049	800 900 1000	392 403 418	0.07 0.08 0.10	— 474 482	— 0.11 0.13	— — 546	— — 0.16	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
1154 1259 1364	1100 1200 1300	435 454 474	0.12 0.15 0.17	493 508 524	0.15 0.18 0.21	551 561 573	0.19 0.21 0.24	610 614 623	0.22 0.25 0.28	— 668 672	— 0.29 0.32	— — 721	— — 0.37	— — —	— — —	— — —	— — —
1469 1574 1678	1400 1500 1600	495 516 539	0.21 0.24 0.28	542 562 582	0.24 0.28 0.32	588 605 623	0.28 0.32 0.36	634 648 663	0.32 0.36 0.40	680 690 703	0.36 0.40 0.45	725 733 743	0.41 0.45 0.50	771 776 783	0.46 0.50 0.55	— — 863	— — 0.66
1783 1888 1993	1700 1800 1900	561 584 607	0.33 0.38 0.43	603 624 646	0.37 0.42 0.48	642 662 683	0.41 0.47 0.53	680 698 718	0.46 0.51 0.57	718 734 752	0.50 0.56 0.62	756 770 786	0.55 0.61 0.67	793 806 820	0.60 0.66 0.73	869 877 887	0.71 0.77 0.84
2098 2308 2518	2000 2200 2400	631 679 727	0.49 0.64 0.80	669 715 761	0.54 0.69 0.86	704 748 793	0.59 0.74 0.92	738 779 823	0.64 0.80 0.98	770 810 851	0.69 0.85 1.04	803 840 880	0.75 0.91 1.10	835 869 907	0.80 0.97 1.16	899 928 961	0.91 1.08 1.28
2727 2937 3147	2600 2800 3000	775 824 873	0.99 1.22 1.47	808 856 905	1.06 1.29 1.55	839 886 933	1.13 1.36 1.63	867 913 959	1.19 1.43 1.71	894 939 985	1.25 1.50 1.78	921 964 1009	1.32 1.57 1.86	947 989 1033	1.38 1.64 1.93	998 1037 1078	1.51 1.78 2.08
3357 3567 3776	3200 3400 3600	923 972 1022	1.76 2.08 2.44	953 1002 1051	1.85 2.18 2.55	981 1029 1077	1.93 2.28 2.65	1006 1054 1102	2.02 2.36 2.75	1031 1078 1125	2.10 2.45 2.84	1054 1100 1147	2.18 2.53 2.93	1077 1122 1168	2.25 2.62 3.02	1121 1165 1209	2.41 2.79 3.20
3986 4196 4406	3800 4000 4200	1071 1121 1171	2.85 3.29 3.78	1100 1150 1199	2.96 3.42 3.92	1126 1175 1224	3.07 3.54 4.04	1150 1199 1247	3.18 3.65 4.16	1173 1221 1269	3.27 3.75 4.28	1194 1242 1289	3.37 3.86 4.39	1215 1262 1309	3.47 3.96 4.50	1254 1300 1347	3.66 4.16 4.71
4616 4825 5035	4400 4600 4800	1221 1271 1322	4.32 4.90 5.54	1249 1299 1348	4.47 5.06 5.71	1274 1323 1372	4.60 5.20 5.86	1296 1345 1394	4.73 5.34 6.00	1317 1366 1415	4.85 5.47 6.14	1338 1386 1434	4.97 5.59 6.27	1357 1405 1453	5.08 5.71 6.40	1394 1441 1488	5.30 5.95 6.65
5245 5455 5665	5000 5200 5400	1372 1422 1473	6.23 6.98 7.78	1398 1448 1499	6.41 7.17 7.98	1422 1472 1522	6.57 7.34 8.16	1444 1493 1543	6.72 7.50 8.34	1464 1513 1563	6.87 7.66 8.50	1483 1532 1581	7.01 7.80 8.66	1502 1550 1599	7.15 7.95 8.81	1536 1585 1633	7.41 8.23 9.10
5874 6084 6294	5600 5800 6000	1523 1573 1624	8.64 9.56 10.55	1549 1599 1649	8.85 9.79 10.79	1571 1621 1671	9.05 10.00 11.01	1592 1642 1692	9.23 10.19 11.21	1612 1661 —	9.40 10.37 —	1630 1680 —	9.57 10.54 —	1648 1697 —	9.73 10.71 —	1681 — —	10.03 — —
6504	6200	1674	11.61	—	—	—	—	—	—	—	—	—	—	—	—	—	—

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.		4.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1783 1888 1993	1700 1800 1900	944 948 954	0.83 0.89 0.96	— — 1022	— — 1.09	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
2098 2308 2518	2000 2200 2400	963 986 1015	1.04 1.21 1.41	1027 1044 1068	1.17 1.34 1.55	1091 1103 1122	1.31 1.48 1.69	— 1219 1228	— 1.79 2.00	— — 1335	— — 2.34	— — —	— — —	— — —	— — —	— — —	— — —
2727 2937 3147	2600 2800 3000	1048 1084 1123	1.65 1.92 2.23	1097 1130 1166	1.79 2.07 2.38	1147 1176 1210	1.94 2.22 2.54	1245 1268 1295	2.25 2.54 2.87	1344 1359 1381	2.59 2.88 3.22	1442 1451 1466	2.96 3.26 3.59	— 1543 1551	— 3.65 3.99	— — 1637	— — 4.41
3357 3567 3776	3200 3400 3600	1163 1205 1248	2.57 2.95 3.37	1205 1245 1286	2.73 3.12 3.55	1246 1284 1324	2.89 3.29 3.73	1326 1361 1397	3.23 3.64 4.09	1407 1436 1469	3.59 4.01 4.47	1487 1512 1540	3.97 4.40 4.87	1567 1587 1611	4.37 4.80 5.28	1647 1662 1682	4.80 5.23 5.72
3986 4196 4406	3800 4000 4200	1292 1337 1383	3.84 4.35 4.91	1329 1373 1417	4.03 4.55 5.12	1365 1407 1451	4.21 4.74 5.32	1435 1475 1516	4.59 5.14 5.74	1504 1541 1579	4.98 5.55 6.16	1572 1606 1642	5.39 5.96 6.59	1639 1670 —	5.81 6.40 —	— — —	— — —
4616 4825 5035	4400 4600 4800	1429 1475 1522	5.52 6.18 6.89	1463 1508 1554	5.74 6.41 7.14	1495 1540 1585	5.96 6.63 7.37	1558 1601 1645	6.38 7.08 7.84	1619 1660 —	6.82 7.54 —	1680 — —	7.27 — —	— — —	— — —	— — —	— — —
5245 5455 5665	5000 5200 5400	1569 1617 1665	7.67 8.49 9.38	1601 1648 1695	7.92 8.76 9.66	1631 1677 —	8.16 9.02 —	1689 — —	8.65 — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-15

TIP SPEED (FPM) = 3.927 x RPM OUTLET 1.280 Sq. Ft. Inside / 161/4" x 113/4" Outside
MAX. SPEED = 1400 RPM
WHEEL DIAMETER —15" INLET 1.374 Sq. Ft. Inside / 161/2" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1024 1152 1280	800 900 1000	346 359 375	0.07 0.09 0.11	409 415 426	0.10 0.12 0.14	— 471 476	— 0.15 0.17	— — 527	— — 0.21	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
1408 1536 1664	1100 1200 1300	393 412 432	0.14 0.17 0.20	439 455 473	0.17 0.20 0.23	485 497 512	0.20 0.23 0.27	531 539 551	0.24 0.27 0.31	577 582 590	0.28 0.31 0.35	— 624 628	— 0.35 0.39	— — 667	— — 0.44	— — —	— — —
1792 1920 2048	1400 1500 1600	453 474 496	0.24 0.28 0.33	491 511 531	0.27 0.32 0.37	528 546 564	0.31 0.36 0.41	564 580 596	0.35 0.40 0.46	600 613 628	0.39 0.44 0.50	636 647 660	0.44 0.49 0.55	672 681 691	0.49 0.54 0.60	745 748 754	0.59 0.64 0.70
2176 2304 2432	1700 1800 1900	518 540 562	0.39 0.45 0.51	552 573 594	0.43 0.49 0.56	583 603 624	0.47 0.54 0.61	614 633 652	0.52 0.59 0.66	644 662 680	0.56 0.63 0.71	674 690 707	0.61 0.68 0.76	704 718 734	0.66 0.73 0.81	763 774 787	0.77 0.84 0.92
2560 2816 3072	2000 2200 2400	585 630 676	0.59 0.76 0.96	616 660 705	0.64 0.82 1.02	645 687 731	0.69 0.87 1.09	672 713 756	0.74 0.93 1.15	699 738 779	0.79 0.99 1.21	725 762 802	0.85 1.04 1.27	750 786 824	0.90 1.10 1.33	801 833 868	1.02 1.22 1.46
3328 3584 3840	2600 2800 3000	722 768 814	1.19 1.46 1.76	750 795 841	1.26 1.54 1.86	775 820 865	1.33 1.62 1.94	799 843 888	1.40 1.69 2.02	821 865 909	1.47 1.76 2.10	843 885 929	1.53 1.83 2.18	864 906 948	1.60 1.91 2.25	905 945 985	1.74 2.05 2.41
4096 4352 4608	3200 3400 3600	861 908 954	2.11 2.51 2.94	888 934 980	2.21 2.61 3.06	911 957 1003	2.30 2.71 3.17	933 978 1024	2.39 2.81 3.28	953 998 1043	2.48 2.90 3.37	972 1017 1061	2.56 2.99 3.47	991 1035 1079	2.65 3.08 3.57	1027 1070 1113	2.81 3.26 3.76
4864 5120 5376	3800 4000 4200	1001 1048 1095	3.43 3.97 4.56	1027 1073 1120	3.56 4.11 4.72	1049 1095 1142	3.68 4.24 4.85	1069 1115 1162	3.79 4.36 4.98	1088 1134 1180	3.90 4.47 5.10	1107 1152 1198	4.00 4.59 5.22	1124 1169 1214	4.10 4.69 5.34	1157 1201 1246	4.30 4.91 5.57
5632 5888 6144	4400 4600 4800	1142 1189 1236	5.21 5.92 6.70	1167 1214 1261	5.38 6.10 6.88	1188 1235 1282	5.53 6.26 7.05	1208 1254 1301	5.66 6.40 7.21	1226 1272 1319	5.79 6.54 7.36	1243 1289 1335	5.92 6.68 7.50	1260 1305 1351	6.05 6.81 7.64	1291 1336 1381	6.28 7.07 7.91
6400 6656 6912	5000 5200 5400	1283 1331 1378	7.53 8.43 9.41	1308 1354 —	7.73 8.65 —	1328 1375 —	7.91 8.84 —	1347 1394 —	8.08 9.02 —	1365 — —	8.24 — —	1381 — —	8.39 — —	1397 — —	8.54 — —	— — —	— — —

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2048 2176 2304	1600 1700 1800	818 823 830	0.81 0.88 0.96	— 882 886	— 1.00 1.08	— — 943	— — 1.21	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
2432 2560 2816	1900 2000 2200	840 851 879	1.04 1.13 1.34	893 902 925	1.17 1.26 1.47	946 952 970	1.30 1.39 1.61	— 1054 1062	— 1.68 1.90	— — 1155	— — 2.22	— — —	— — —	— — —	— — —
3072 3328 3584	2400 2600 2800	910 945 982	1.59 1.87 2.20	953 985 1019	1.73 2.02 2.35	995 1024 1056	1.87 2.16 2.50	1079 1101 1128	2.16 2.47 2.82	1163 1179 1201	2.49 2.80 3.15	1248 1257 1273	2.83 3.14 3.51	— 1335 1345	— 3.52 3.88
3840 4096 4352	3000 3200 3400	1021 1062 1103	2.56 2.98 3.43	1056 1095 1135	2.72 3.14 3.61	1091 1128 1167	2.88 3.31 3.78	1159 1193 1228	3.21 3.65 4.14	1227 1256 1288	3.56 4.01 4.51	1294 1319 1348	3.92 4.38 4.90	1361 1382 —	4.30 4.77 —
4608 4864 5120	3600 3800 4000	1145 1188 1232	3.94 4.50 5.12	1176 1218 1261	4.13 4.70 5.32	1207 1247 1289	4.31 4.89 5.53	1265 1304 1344	4.69 5.29 5.94	1323 1359 1397	5.07 5.68 6.35	1380 — —	5.47 — —	— — —	— — —
5376 5632 5888	4200 4400 4600	1275 1320 1364	5.79 6.52 7.31	1304 1348 1392	6.00 6.75 7.56	1332 1374 —	6.22 6.97 —	1385 — —	6.65 — —	— — —	— — —	— — —	— — —	— — —	— — —

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-16

TIP SPEED (FPM) = 4.189 x RPM OUTLET 1.560 Sq. Ft. Inside / 173/4" x 13" Outside
MAX. SPEED = 1313 RPM
WHEEL DIAMETER —161/4" INLET 1.670 Sq. Ft. Inside / 177/8" Dia. Outside

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.		1.25 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1248 1404 1560	800 900 1000	328 340 355	0.10 0.12 0.15	388 394 403	0.13 0.15 0.18	— 448 452	— 0.19 0.22	— — 500	— — 0.27	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
1716 1872 2028	1100 1200 1300	371 389 408	0.18 0.21 0.26	416 430 447	0.22 0.26 0.30	460 471 484	0.26 0.30 0.35	504 511 522	0.30 0.35 0.40	548 552 559	0.35 0.40 0.45	— 592 596	— 0.45 0.50	— — 634	— — 0.56	— — —	— — —
2184 2340 2496	1400 1500 1600	427 447 467	0.31 0.36 0.42	464 482 501	0.35 0.41 0.48	499 515 533	0.40 0.46 0.53	534 548 564	0.45 0.52 0.59	569 581 594	0.51 0.57 0.65	603 613 625	0.56 0.63 0.71	638 645 655	0.62 0.69 0.77	708 710 716	0.74 0.82 0.90
2652 2808 2964	1700 1800 1900	488 509 530	0.49 0.57 0.66	520 540 560	0.55 0.63 0.72	551 569 588	0.61 0.69 0.78	580 597 615	0.67 0.75 0.85	609 625 642	0.73 0.82 0.92	638 652 668	0.79 0.88 0.98	666 679 694	0.85 0.95 1.05	724 733 745	0.99 1.09 1.19
3120 3432 3744	2000 2200 2400	551 594 637	0.75 0.96 1.22	581 622 664	0.82 1.04 1.31	608 648 689	0.89 1.12 1.39	634 672 712	0.95 1.19 1.47	659 696 735	1.02 1.27 1.55	684 719 756	1.09 1.34 1.63	709 742 778	1.16 1.42 1.71	758 787 820	1.31 1.57 1.88
4056 4368 4680	2600 2800 3000	681 725 769	1.52 1.86 2.26	707 750 794	1.61 1.97 2.37	731 773 816	1.70 2.06 2.48	753 795 837	1.79 2.16 2.58	774 815 856	1.88 2.25 2.68	795 835 875	1.97 2.35 2.79	815 854 894	2.06 2.44 2.89	855 891 929	2.23 2.63 3.09
4992 5304 5616	3200 3400 3600	814 859 903	2.71 3.21 3.78	838 882 926	2.83 3.34 3.92	859 903 946	2.94 3.47 4.05	879 922 965	3.06 3.59 4.18	898 941 983	3.17 3.71 4.31	917 958 1001	3.28 3.82 4.44	934 976 1017	3.38 3.94 4.56	969 1009 1049	3.60 4.17 4.80
5928 6240 6552	3800 4000 4200	948 993 1038	4.41 5.10 5.87	970 1015 1059	4.56 5.27 6.04	990 1034 1079	4.70 5.42 6.21	1009 1053 1097	4.84 5.57 6.37	1026 1070 1113	4.98 5.71 6.52	1043 1086 1129	5.11 5.86 6.67	1059 1102 1145	5.24 5.99 6.82	1090 1132 1174	5.50 6.27 7.11
6864 7176 7488	4400 4600 4800	1084 1129 1174	6.71 7.63 8.63	1104 1149 1194	6.90 7.83 8.84	1123 1168 1212	7.07 8.02 9.04	1141 1185 1229	7.24 8.19 9.23	1157 1201 1245	7.40 8.37 9.41	1173 1216 1260	7.56 8.53 9.59	1188 1231 1275	7.72 8.70 9.76	1217 1259 1302	8.03 9.02 10.10
7800 8112 8424	5000 5200 5400	1220 1265 1311	9.72 10.90 12.16	1239 1284 —	9.94 11.13 —	1257 1302 —	10.15 11.35 —	1274 — —	10.35 — —	1289 — —	10.54 — —	1304 — —	10.72 — —	— — —	— — —	— — —	— — —

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.		4.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2496 2652 2808	1600 1700 1800	776 781 787	1.03 1.13 1.23	— 838 841	— 1.27 1.38	— — 895	— — 1.54	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
2964 3120 3432	1900 2000 2200	796 807 832	1.34 1.46 1.74	847 855 876	1.50 1.62 1.90	898 904 920	1.66 1.78 2.07	— 1001 1008	— 2.13 2.43	— — 1097	— — 2.81	— — —	— — —	— — —	— — —
3744 4056 4368	2400 2600 2800	861 893 927	2.05 2.42 2.83	901 931 963	2.23 2.60 3.02	942 968 998	2.41 2.79 3.23	1023 1043 1068	2.79 3.19 3.64	1104 1118 1137	3.18 3.60 4.07	1185 1193 1207	3.59 4.03 4.51	— 1268 1276	— 4.47 4.97
4680 4992 5304	3000 3200 3400	964 1001 1040	3.29 3.82 4.40	998 1034 1071	3.50 4.04 4.63	1031 1065 1101	3.71 4.26 4.87	1096 1127 1160	4.14 4.71 5.34	1161 1188 1218	4.59 5.18 5.82	1226 1249 1276	5.05 5.65 6.32	1291 1310 —	5.53 6.15 —
5616 5928 6240	3600 3800 4000	1080 1120 1161	5.05 5.76 6.54	1109 1149 1189	5.29 6.02 6.81	1138 1177 1216	5.54 6.28 7.08	1195 1231 1268	6.03 6.80 7.63	1250 1284 —	6.54 7.32 —	1305 — —	7.06 — —	— — —	— — —
6552 6864 7176	4200 4400 4600	1202 1244 1286	7.40 8.33 9.34	1229 1270 1312	7.68 8.63 9.66	1255 1296 —	7.97 8.93 —	1306 — —	8.54 — —	— — —	— — —	— — —	— — —	— — —	— — —

FORWARD CURVE BLOWER

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-18

TIP SPEED (FPM) = 4.712 x RPM OUTLET 1.899 Sq. Ft. Inside / 195/8" x 141/4" Outside
MAX. SPEED = 1061 RPM
WHEEL DIAMETER —181/4" INLET 2.020 Sq. Ft. Inside / 195/8" Dia. Outside

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1519 1709 1899	800 900 1000	296 306 318	0.11 0.14 0.17	352 356 364	0.16 0.19 0.22	— 406 409	— 0.24 0.27	— — 454	— — 0.33	— — —	— — —	— — —	— — —	— — —	— — —
2089 2279 2469	1100 1200 1300	331 346 361	0.20 0.24 0.29	374 386 399	0.25 0.29 0.34	416 425 435	0.31 0.35 0.40	457 463 471	0.37 0.42 0.47	497 500 506	0.44 0.49 0.54	— 537 540	— 0.56 0.61	— — 575	— — 0.69
2659 2849 3038	1400 1500 1600	377 394 411	0.34 0.40 0.46	413 428 443	0.40 0.46 0.53	447 460 475	0.46 0.53 0.60	481 492 504	0.53 0.60 0.67	513 523 534	0.60 0.67 0.75	546 554 563	0.68 0.75 0.83	578 584 591	0.76 0.83 0.91
3228 3418 3608	1700 1800 1900	428 445 463	0.54 0.62 0.71	459 476 493	0.61 0.69 0.79	489 505 520	0.68 0.77 0.87	518 532 547	0.76 0.85 0.95	546 559 573	0.84 0.93 1.04	573 585 598	0.92 1.02 1.12	601 611 623	1.00 1.10 1.21
3798 4178 4558	2000 2200 2400	481 517 553	0.81 1.03 1.30	510 544 580	0.89 1.13 1.41	537 570 604	0.98 1.22 1.51	562 594 627	1.06 1.32 1.61	587 617 649	1.15 1.41 1.72	611 640 671	1.24 1.51 1.82	635 662 691	1.33 1.60 1.92
4937 5317 5697	2600 2800 3000	590 627 665	1.61 1.97 2.38	616 652 689	1.73 2.10 2.52	639 675 711	1.84 2.22 2.66	661 696 731	1.95 2.35 2.79	682 716 750	2.06 2.46 2.92	702 735 769	2.18 2.58 3.05	722 754 787	2.29 2.70 3.17
6077 6457 6836	3200 3400 3600	702 740 778	2.85 3.37 3.95	726 763 800	3.00 3.54 4.13	747 784 820	3.15 3.70 4.31	767 803 839	3.29 3.85 4.47	786 821 857	3.43 4.00 4.63	804 839 874	3.57 4.15 4.79	821 855 890	3.70 4.29 4.94
7216 7596 7976	3800 4000 4200	816 854 892	4.60 5.32 6.11	838 875 913	4.80 5.53 6.34	857 895 932	4.98 5.73 6.55	876 913 950	5.16 5.92 6.75	893 930 966	5.33 6.10 6.95	910 946 982	5.50 6.28 7.14	926 961 997	5.66 6.46 7.32
8356 8735 9115	4400 4600 4800	931 969 1008	6.98 7.92 8.95	951 989 1027	7.22 8.18 9.22	970 1007 1045	7.44 8.42 9.48	987 1024 —	7.66 8.65 —	1003 1040 —	7.87 8.87 —	1019 1055 —	8.07 9.08 —	1034 — —	8.27 — —
9495	5000	1046	10.07	—	—	—	—	—	—	—	—	—	—	—	—

FORWARD CURVE BLOWER

VOL. CFM	OUTLET VEL. FPM	1.25 S.P.		1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2659 2849 3038	1400 1500 1600	642 644 648	0.93 1.00 1.09	— — 704	— — 1.28	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
3228 3418 3608	1700 1800 1900	654 662 671	1.18 1.29 1.40	707 713 720	1.38 1.48 1.60	760 763 767	1.58 1.69 1.81	— 812 814	— 1.92 2.04	— — —	— — —	— — —	— — —
3798 4178 4558	2000 2200 2400	682 705 732	1.52 1.81 2.14	728 748 772	1.73 2.02 2.36	773 790 810	1.94 2.24 2.59	819 831 849	2.17 2.47 2.83	908 914 925	2.66 2.97 3.33	— 995 1000	— 3.51 3.88
4937 5317 5697	2600 2800 3000	760 791 822	2.51 2.94 3.43	798 826 856	2.75 3.19 3.69	834 860 889	2.98 3.44 3.95	870 894 921	3.23 3.70 4.22	941 961 984	3.75 4.24 4.78	1011 1027 1046	4.31 4.81 5.37
6077 6457 6836	3200 3400 3600	855 888 922	3.97 4.58 5.25	887 919 952	4.25 4.87 5.56	918 949 981	4.52 5.16 5.86	949 979 1009	4.81 5.45 6.17	1009 1036 —	5.39 6.06 —	— — —	— — —
7216 7596 7976	3800 4000 4200	956 991 1026	5.99 6.80 7.69	985 1019 1054	6.31 7.14 8.05	1013 1047 —	6.64 7.48 —	1041 — —	6.96 — —	— — —	— — —	— — —	— — —

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-20

TIP SPEED (FPM) = 5.236 x RPM OUTLET 2.316 Sq. Ft. Inside / 211/2" x 157/8" Outside
MAX. SPEED = 955 RPM
WHEEL DIAMETER —20" INLET 2.435 Sq. Ft. Inside / 211/2" Dia. Outside

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
1853 2084 2316	800 900 1000	256 263 272	0.14 0.16 0.20	308 309 314	0.19 0.22 0.26	— — 356	— — 0.33	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
2548 2780 3011	1100 1200 1300	282 294 307	0.24 0.29 0.34	321 330 341	0.30 0.35 0.41	360 366 374	0.37 0.42 0.48	398 401 406	0.45 0.50 0.56	— 436 439	— 0.59 0.65	— — 471	— — 0.74	— — —	— — —
3242 3474 3706	1400 1500 1600	320 333 347	0.40 0.47 0.55	352 364 376	0.47 0.55 0.63	383 393 404	0.55 0.63 0.71	413 422 431	0.63 0.71 0.80	444 450 458	0.72 0.80 0.89	474 478 485	0.81 0.90 0.99	503 506 511	0.91 1.00 1.09
3937 4169 4400	1700 1800 1900	362 376 391	0.64 0.74 0.85	389 403 417	0.72 0.83 0.94	416 428 441	0.81 0.92 1.03	442 453 465	0.90 1.01 1.13	467 477 488	0.99 1.10 1.23	493 501 511	1.09 1.21 1.33	518 525 534	1.19 1.31 1.44
4632 5095 5558	2000 2200 2400	406 437 468	0.97 1.25 1.57	431 460 490	1.07 1.35 1.69	455 482 511	1.16 1.46 1.80	477 504 531	1.26 1.57 1.92	500 524 550	1.37 1.67 2.04	522 544 569	1.47 1.79 2.16	543 564 588	1.58 1.90 2.28
6022 6485 6948	2600 2800 3000	499 531 563	1.96 2.40 2.90	520 551 582	2.08 2.54 3.05	540 570 601	2.21 2.67 3.20	559 588 618	2.33 2.81 3.34	578 606 634	2.46 2.94 3.49	595 623 651	2.59 3.08 3.63	613 639 667	2.71 3.21 3.78
7411 7875 8338	3200 3400 3600	595 628 660	3.48 4.13 4.85	614 646 678	3.64 4.30 5.04	631 663 694	3.80 4.47 5.22	648 679 709	3.95 4.64 5.40	664 694 724	4.11 4.80 5.57	679 709 739	4.26 4.96 5.74	695 723 753	4.41 5.13 5.92
8801 9264 9727	3800 4000 4200	693 726 759	5.66 6.55 7.54	710 742 775	5.86 6.77 7.76	726 757 789	6.05 6.97 7.98	740 772 803	6.24 7.17 8.19	755 786 817	6.43 7.37 8.40	769 799 830	6.61 7.56 8.61	782 812 843	6.79 7.76 8.81
10190 10654 11117	4400 4600 4800	792 825 859	8.62 9.80 11.09	807 840 873	8.86 10.05 11.36	822 854 886	9.09 10.30 11.61	835 867 899	9.31 10.53 11.86	848 880 912	9.53 10.76 12.10	861 892 924	9.75 10.99 12.34	873 904 936	9.96 11.22 12.58
11580 12043	5000 5200	892 925	12.49 14.00	906 939	12.76 14.29	919 952	13.03 14.57	932 —	13.29 —	944 —	13.55 —	955 —	13.80 —	— —	— —

VOL. CFM	OUTLET VEL. FPM	1.25 S.P.		1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
3474 3706 3937	1500 1600 1700	562 564 567	1.21 1.31 1.42	— — 616	— — 1.66	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
4169 4400 4632	1800 1900 2000	572 579 586	1.54 1.67 1.81	619 623 629	1.78 1.92 2.06	665 667 671	2.04 2.18 2.33	— 711 712	— 2.46 2.61	— — —	— — —	— — —	— — —	— — —	— — —
5095 5558 6022	2200 2400 2600	604 624 647	2.14 2.53 2.98	643 661 681	2.40 2.80 3.26	681 696 714	2.67 3.08 3.54	720 732 747	2.96 3.37 3.85	796 802 813	3.58 4.00 4.49	— 871 877	— 4.68 5.18	— — 941	— — 5.93
6485 6948 7411	2800 3000 3200	672 697 724	3.49 4.07 4.72	703 727 753	3.78 4.37 5.04	735 757 781	4.08 4.69 5.37	766 786 808	4.39 5.01 5.70	827 844 863	5.05 5.68 6.39	887 901 917	5.75 6.40 7.12	947 — —	6.50 — —
7875 8338 8801	3400 3600 3800	752 780 808	5.46 6.26 7.16	779 806 834	5.79 6.61 7.52	806 832 859	6.12 6.97 7.89	832 857 883	6.47 7.33 8.27	884 906 930	7.19 8.07 9.04	935 955 —	7.94 8.84 —	— — —	— — —
9264 9727 10190	4000 4200 4400	838 867 897	8.14 9.22 10.39	862 891 920	8.52 9.62 10.81	886 914 943	8.91 10.02 11.23	909 937 —	9.30 10.43 —	955 — —	10.10 — —	— — —	— — —	— — —	— — —
10654	4600	928	11.67	950	12.11	—	—	—	—	—	—	—	—	—	—

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-22

TIP SPEED (FPM) = 5.825 x RPM OUTLET 2.827 Sq. Ft. Inside / 24" x 173/8" Outside
MAX. SPEED = 858 RPM
WHEEL DIAMETER —221/4" INLET 3.015 Sq. Ft. Inside / 237/8" Dia. Outside

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2262 2544 2827	800 900 1000	232 236 242	0.16 0.19 0.23	— — 285	— — 0.31	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
3110 3392 3675	1100 1200 1300	250 259 269	0.27 0.32 0.38	289 294 302	0.35 0.40 0.47	328 330 335	0.45 0.50 0.56	— 367 368	— 0.60 0.67	— — 401	— — 0.78	— — —	— — —	— — —	— — —
3958 4241 4523	1400 1500 1600	280 291 303	0.45 0.52 0.61	310 320 330	0.54 0.62 0.71	341 348 357	0.63 0.72 0.81	372 377 384	0.74 0.82 0.92	403 406 410	0.86 0.94 1.04	434 435 437	0.99 1.07 1.17	— 464 465	— 1.21 1.30
4806 5089 5371	1700 1800 1900	315 328 340	0.70 0.81 0.93	341 352 364	0.80 0.92 1.04	366 376 387	0.91 1.03 1.15	391 400 409	1.02 1.14 1.27	416 424 432	1.15 1.27 1.40	442 448 454	1.27 1.40 1.53	467 471 477	1.41 1.53 1.67
5654 6219 6785	2000 2200 2400	353 379 406	1.05 1.35 1.70	376 401 426	1.17 1.48 1.84	398 421 445	1.29 1.61 1.98	419 441 464	1.42 1.74 2.12	441 460 482	1.54 1.88 2.27	462 480 500	1.68 2.02 2.42	483 499 518	1.82 2.17 2.57
7350 7916 8481	2600 2800 3000	433 460 488	2.10 2.57 3.11	452 479 505	2.26 2.74 3.29	470 496 522	2.41 2.91 3.47	488 512 538	2.57 3.07 3.65	505 529 553	2.72 3.24 3.82	521 544 568	2.88 3.40 4.00	538 560 583	3.04 3.57 4.18
9046 9612 10177	3200 3400 3600	515 543 571	3.72 4.40 5.17	532 560 587	3.91 4.61 5.40	548 575 602	4.11 4.82 5.62	563 590 616	4.30 5.03 5.84	578 604 630	4.49 5.23 6.05	592 617 643	4.67 5.43 6.26	606 631 656	4.86 5.63 6.47
10743 11308 11873	3800 4000 4200	599 628 656	6.02 6.96 8.00	615 643 670	6.27 7.22 8.28	629 656 684	6.50 7.48 8.55	643 670 697	6.73 7.72 8.81	656 682 709	6.96 7.96 9.06	669 695 721	7.19 8.20 9.31	681 707 733	7.41 8.44 9.56
12439 13004 13570	4400 4600 4800	684 713 741	9.14 10.38 11.74	698 726 755	9.44 10.69 12.07	712 739 767	9.72 11.00 12.39	724 751 779	10.00 11.29 12.69	736 763 790	10.27 11.57 12.99	748 774 801	10.53 11.85 13.29	759 785 812	10.79 12.13 13.58
14135 14700 15266	5000 5200 5400	770 798 827	13.20 14.79 16.50	783 811 840	13.55 15.16 16.89	795 823 851	13.89 15.51 17.26	807 834 —	14.21 15.85 —	818 845 —	14.52 16.18 —	829 856 —	14.83 16.50 —	839 — —	15.14 — —
15831	5600	856	18.34	—	—	—	—	—	—	—	—	—	—	—	—

VOL. CFM	OUTLET VEL. FPM	1.25 S.P.		1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
4806 5089 5371	1700 1800 1900	518 520 522	1.71 1.84 1.97	— — 568	— — 2.30	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
5654 6219 6785	2000 2200 2400	526 538 553	2.12 2.48 2.89	570 577 589	2.46 2.81 3.23	613 617 625	2.82 3.17 3.60	— 656 661	— 3.56 3.99	— — 733	— — 4.83	— — —	— — —
7350 7916 8481	2600 2800 3000	571 590 611	3.37 3.92 4.55	603 621 640	3.72 4.28 4.92	636 651 668	4.09 4.66 5.31	669 682 697	4.48 5.06 5.72	736 743 754	5.34 5.92 6.59	803 805 811	6.28 6.86 7.53
9046 9612 10177	3200 3400 3600	634 657 680	5.25 6.03 6.90	660 682 705	5.64 6.44 7.33	687 707 729	6.04 6.86 7.76	714 732 753	6.46 7.29 8.21	767 783 800	7.35 8.20 9.14	821 833 847	8.30 9.17 10.13
10743 11308 11873	3800 4000 4200	705 730 755	7.86 8.91 10.06	728 752 777	8.31 9.38 10.55	751 774 798	8.76 9.85 11.05	774 796 819	9.23 10.34 11.55	819 839 —	10.19 11.33 —	— — —	— — —
12439 13004 13570	4400 4600 4800	781 807 833	11.31 12.67 14.15	802 827 853	11.83 13.22 14.72	822 847 —	12.35 13.76 —	842 — —	12.87 — —	— — —	— — —	— — —	— — —

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

FCB-24

TIP SPEED (FPM) = 6.414 x RPM OUTLET 3.458 Sq. Ft. Inside / 261/4" x 193/4" Outside
MAX. SPEED = 779 RPM
WHEEL DIAMETER —241/2" INLET 3.650 Sq. Ft. Inside / 263/8" Dia. Outside

VOL. CFM	OUTLET VEL. FPM	.25 S.P.		.375 S.P.		.5 S.P.		.625 S.P.		.75 S.P.		.875 S.P.		1.0 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
2766 3112 3458	800 900 1000	209 214 220	0.19 0.23 0.28	252 254 257	0.28 0.32 0.37	— — 292	— — 0.47	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
3804 4150 4495	1100 1200 1300	228 236 245	0.33 0.39 0.47	262 268 275	0.43 0.49 0.57	295 299 304	0.53 0.60 0.68	326 329 332	0.64 0.72 0.80	— 357 360	— 0.84 0.93	— — 386	— — 1.06	— — —	— — —
4841 5187 5533	1400 1500 1600	254 263 273	0.55 0.64 0.74	283 291 300	0.66 0.75 0.86	311 318 325	0.77 0.88 0.99	337 343 350	0.89 1.00 1.12	363 368 373	1.03 1.14 1.26	388 392 396	1.16 1.28 1.41	413 415 419	1.31 1.43 1.56
5879 6224 6570	1700 1800 1900	283 294 304	0.85 0.98 1.12	309 319 329	0.98 1.12 1.27	334 342 351	1.12 1.26 1.41	357 365 373	1.25 1.40 1.56	379 386 394	1.40 1.55 1.71	401 407 414	1.55 1.70 1.87	423 428 434	1.70 1.86 2.03
6916 7608 8299	2000 2200 2400	315 337 359	1.27 1.62 2.03	339 359 381	1.43 1.79 2.22	361 380 400	1.58 1.96 2.41	382 400 419	1.74 2.13 2.59	402 419 437	1.89 2.30 2.77	422 437 455	2.06 2.47 2.96	441 455 472	2.22 2.65 3.15
8991 9682 10374	2600 2800 3000	381 404 427	2.50 3.05 3.67	402 424 446	2.72 3.28 3.93	421 442 464	2.92 3.51 4.17	439 460 481	3.12 3.72 4.41	456 476 497	3.32 3.94 4.64	473 492 512	3.52 4.15 4.87	489 508 527	3.72 4.37 5.10
11066 11757 12449	3200 3400 3600	450 473 496	4.38 5.17 6.06	469 491 514	4.66 5.48 6.39	486 508 531	4.92 5.76 6.69	502 524 546	5.18 6.04 6.99	518 539 560	5.43 6.31 7.28	532 553 574	5.68 6.57 7.56	547 567 588	5.92 6.83 7.84
13140 13832 14524	3800 4000 4200	520 543 567	7.04 8.12 9.32	537 560 583	7.39 8.51 9.73	553 576 599	7.73 8.86 10.11	568 590 613	8.04 9.20 10.47	582 604 626	8.35 9.53 10.83	596 617 639	8.66 9.86 11.17	609 630 652	8.95 10.17 11.51
15215 15907 16598	4400 4600 4800	590 614 638	10.62 12.05 13.60	607 630 654	11.06 12.52 14.09	622 645 668	11.47 12.95 14.55	636 658 681	11.86 13.36 14.99	649 671 694	12.23 13.76 15.41	661 684 706	12.60 14.15 15.82	673 696 718	12.95 14.52 16.22
17290 17982 18673	5000 5200 5400	662 686 710	15.28 17.10 19.05	677 701 724	15.80 17.65 19.63	691 714 738	16.29 18.16 20.17	704 727 751	16.75 18.65 20.69	717 740 763	17.20 19.12 21.19	729 751 774	17.63 19.58 21.67	740 763 —	18.05 20.02 —
19365 20056	5600 5800	734 758	21.15 23.40	748 772	21.76 24.04	761 —	22.33 —	774 —	22.88 —	— —	— —	— —	— —	— —	— —

VOL. CFM	OUTLET VEL. FPM	1.25 S.P.		1.50 S.P.		1.75 S.P.		2.0 S.P.		2.5 S.P.		3.0 S.P.		3.5 S.P.
		RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP	RPM	BHP
5187 5533 5879	1500 1600 1700	461 462 465	1.75 1.88 2.03	— 505 506	— 2.23 2.39	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —
6224 6570 6916	1800 1900 2000	468 473 478	2.19 2.38 2.57	507 510 514	2.55 2.74 2.94	546 547 550	2.94 3.13 3.34	— 583 584	— 3.54 3.75	— — —	— — —	— — —	— — —	— — —	— — —
7608 8299 8991	2200 2400 2600	490 505 520	3.02 3.54 4.13	524 536 550	3.41 3.94 4.55	557 567 580	3.81 4.36 4.99	590 598 609	4.24 4.80 5.44	653 657 665	5.15 5.73 6.40	— 715 719	— 6.73 7.42	— — 772	— — 8.50
9682 10374 11066	2800 3000 3200	537 555 574	4.80 5.56 6.41	566 583 600	5.25 6.03 6.91	594 609 626	5.71 6.51 7.41	621 635 651	6.18 7.00 7.92	674 686 699	7.16 8.02 8.98	726 735 746	8.21 9.09 10.08	776 — —	9.32 — —
11757 12449 13140	3400 3600 3800	593 613 634	7.35 8.40 9.54	619 638 658	7.88 8.95 10.12	644 662 681	8.40 9.50 10.71	667 685 703	8.94 10.06 11.29	714 730 746	10.03 11.20 12.48	759 773 —	11.18 12.38 —	— — —	— — —
13832 14524 15215	4000 4200 4400	654 675 697	10.80 12.17 13.65	678 698 719	11.41 12.81 14.34	700 720 740	12.02 13.46 15.01	722 741 761	12.64 14.10 15.69	763 — —	13.88 — —	— — —	— — —	— — —	— — —
15907 16598 17290	4600 4800 5000	718 740 762	15.26 17.00 18.87	740 761 —	15.98 17.76 —	761 — —	16.70 — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —	— — —

Performance certified is for installation type B – free inlet, ducted outlet. Power Rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories).

Arrangement #10 All Positions Viewed From Drive Side

SIZE	WHEELDIA.	SHAFT DIA.	A	B	C*	D	E	F	H STR	J AIGHTTH, DB,	K DISCHA BH, UB	L RGE	HBAANG	J ULARU, TAU,	K DISCHA TAD, B	L RGE AD	M	N	P	Q	R	S	T	V	X	Y	MAX. MOTOR FRAME
8	73/4	3/4	91/8	13	81/4	53/8	141/4	71/2	6	45/8	63/4	67/8	103/8	61/4	73/8	51/4	201/8	33⁄4	8	—	—	18	181/2	7/16	12	23/16	145T
9	9	3/4	103/8	13	103/4	61/2	141/4	83/8	63/4	55/8	73/4	71/8	115/8	71/2	81/4	61/8	203/4	45/16	9	—	—	18	181/2	7/16	12	23/4	145T
11	101/2	3/4	127/8	13	113/4	8	141/4	103/4	77/8	63/4	91/8	81/16	131/4	87/8	95/8	71/8	211/2	51/8	10	—	—	201/2	181/2	7/16	14	31/2	145T
12	121/4	1	163/8	131/2	131/4	95/8	131/2	143/4	101/8	81/2	111/2	101/2	165/8	103/4	121/2	91/8	237/8	63/8	131/4	111/4	123⁄4	251/4	20	1/2	17	—	182T
13	131/2	1	175/8	131/2	145/8	103/4	131/2	16	111/8	93/8	125/8	113/8	181/4	117/8	133/4	10	243/8	7	141/2	123/8	137/8	257/8	20	1/2	17	—	182T
15	15	1	191/4	151/2	161/4	113/4	151/2	175/8	123/8	103/8	141/8	123/8	201/8	131/4	151/4	111/8	267/8	71/2	161/8	133/8	147/8	275/8	22	1/2	177/8	—	182T
16	161/4	1	213/8	15	173/4	13	151/2	193/4	135/8	113/8	151/2	133/8	217/8	145/8	163/4	121/4	271/2	81/2	177/8	141/2	17	301/8	22	1/2	191/2	—	184T
18	181/4	13/16	231/8	17	195/8	141/4	171/2	211/2	15	125/8	171/8	145/8	241/8	16	181/2	135/8	305/8	91/8	195/8	153/4	181/4	333/8	25	1/2	217/8	—	184T
20	20	13/16	25	17	211/2	157/8	17	233/8	161/2	133/4	183/4	153/4	263/8	175/8	203/8	147/8	311/2	10	211/2	177/8	201/8	361/4	25	1/2	233/4	—	213T
22	221/4	13/16	273/8	161/2	24	173/8	17	253/4	181/4	151/4	207/8	171/4	29	191/2	225/8	161/2	323/4	105/8	237/8	193/8	225/8	393/4	26	1/2	261/8	—	213T
24	241/2	17/16	301/4	161/2	261/4	191/4	163/4	235/8	201/8	167/8	23	197/8	321/2	211/2	247/8	181/4	335/8	113/4	263/8	211/4	241/4	427/8	26	1/2	273/4	—	215T

NOTE: Letters “C” and “D” are outside housing dimensions. “C” dimension extends beyond center-line, size #8 (5/16), size #9 (19/16) & size #11 (11/16)