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| | | Maximum BHP = 118 [ ^Jjjj]3 | | |
| | | Wheel diameter: 60.0" Wheel circumference: 15.7' | | |
| | | Capacity outlet area: 15.1 ft.2 | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 12"SP | ■ 16"SP | 20"SP | 24"SP | 28"SP | 32"SP | 34"SP | 36"SP | 38"SP | 40"SP | | | | CFM | OV | | | | | | | | | | | | | | | | | | | | | | | | | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM BHP | | | | 24000 | 1589 | 835 | 54.9 | 950 | 75.1 | 1046 | 94.9 | 1141 | 117 | 1225 | 138 | 1311 | 162 | 1347 | 173 | 1391 | 187 | 1428 | 199 | | | | | 28500 | 1887 | 861 | 64.4 | 970 | 87.1 | 1066 | 110 | 1156 | 134 | 1239 | 158 | 1321 | 184 | 1356 | 196 | 1392 | 209 | 1431 | 223 | 1467 236 | | | | 33000 | 2185 | 893 | 75.3 | 995 | 99.6 | 1092 | 126 | 1181 | 153 | 1259 | 179 | 1336 | 207 | 1372 | 220 | 1411 | 235 | 1444 | 249 | 1479 264 | | | | 37500 | 2483 | 931 | 87.8 | 1027 | 114 | 1118 | 142 | 1203 | 171 | 1282 | 200 | 1356 | 230 | 1394 | 246 | 1428 | 261 | 1464 | 277 | 1495 292 | | | | 42000 | 2781 | 970 | 101 | 1063 | 130 | 1149 | 160 | 1231 | 191 | 1308 | 223 | 1380 | 255 | 1420 | 274 | 1451 | 289 | 1483 | 305 | 1517 323 | | | | 46500 | 3079 | 1015 | 117 | 1102 | 148 | 1184 | 179 | 1261 | 212 | 1336 | 246 | 1408 | 281 | 1444 | 300 | 1477 | 318 | 1507 | 334 | | | | | 51000 | 3377 | 1063 | 134 | 1146 | 168 | 1222 | 200 | 1298 | 236 | 1370 | 272 | 1437 | 309 | 1471 | 328 | 1503 | 346 | | | | | | | 55500 | 3675 | 1112 | 154 | 1192 | 190 | 1266 | 226 | 1337 | 262 | 1406 | 300 | 1470 | 338 | 1502 | 358 | | | | | | | | | 60000 | 3974 | 1167 | 178 | 1238 | 213 | 1311 | 252 | 1380 | 291 | 1446 | 332 | 1508 | 371 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | Size 661 | | |
| | | Maximum BHP = 190 [ ^Jjjj]3 | | |
| | | Wheel diameter: 66.0" Wheel circumference: 17.3' | | |
| | | Capacity outlet area: 18.4 ft.2 | | |
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r\\i | 12"SP | 16"SP | 20"SP | 24"SP | 28"SP | 32"SP | 34"SP | 36"SP | 38"SP | 40"SP | | | | CFM | OV | | | | | | | | | | | | | | | | | | | | | | | | | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM | BHP | RPM BHP | | | | 29500 | 1604 | 764 | 68.0 | 864 | 92.0 | 956 | 117 | 1036 | 142 | 1118 | 171 | 1192 | 199 | 1229 | 214 | 1261 | 227 | 1298 | 243 | 1329 257 | | | | 35000 | 1903 | 785 | 79.2 | 885 | 107 | 972 | 135 | 1054 | 164 | 1129 | 194 | 1203 | 225 | 1234 | 240 | 1267 | 255 | 1302 | 272 | 1334 289 | | | | 40500 | 2202 | 816 | 92.6 | 909 | 123 | 993 | 153 | 1073 | 186 | 1149 | 220 | 1219 | 254 | 1252 | 271 | 1281 | 286 | 1317 | 306 | 1349 324 | | | | 46000 | 2501 | 848 | 107 | 938 | 140 | 1019 | 174 | 1095 | 209 | 1167 | 245 | 1239 | 284 | 1269 | 301 | 1300 | 319 | 1332 | 339 | 1366 360 | | | | 51500 | 2801 | 889 | 125 | 969 | 159 | 1048 | 196 | 1122 | 234 | 1192 | 273 | 1258 | 313 | 1289 | 333 | 1322 | 354 | 1352 | 374 | 1383 396 | | | | 57000 | 3100 | 929 | 145 | 1008 | 182 | 1083 | 221 | 1150 | 260 | 1219 | 302 | 1284 | 345 | 1313 | 366 | 1344 | 388 | 1375 | 411 | | | | | 62500 | 3399 | 971 | 165 | 1048 | 207 | 1118 | 248 | 1185 | 290 | 1251 | 335 | 1309 | 377 | 1340 | 401 | 1372 | 426 | | | | | | | 68000 | 3698 | 1019 | 191 | 1090 | 234 | 1158 | 278 | 1221 | 322 | 1280 | 367 | 1343 | 416 | 1372 | 441 | | | | | | | | | 73500 | 3997 | 1070 | 221 | 1134 | 264 | 1199 | 311 | 1260 | 358 | 1321 | 408 | 1375 | 455 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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| | | Performance shown is for HP Backward-curved Fans with evase discharges, with outlet ducts, and with or without inlet ducts. BHP does not include belt losses. Highlighted area indicates maximum mechanical efficiency. | | |
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| | | MATERIAL SPECIFICATIONS [inches, pounds, wr2 in lb-ft2] | | |
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| | | | | | | | | | | | | | | | | | | | | Size | Housing | Base bars | Base angles | Inlet flange angles | Outlet flange angles | Bearing pedestal | Wheel | | | | | Side and scroll | Side channels | Blades | Backplate | Weight [lbs.]* | WR2 [lbs.-ft.2]* | | | | Arr. 1 | | | | 241 | 3/16 | 3"-4.1# | 3 x 3/8 | 3 x 2 x 3/16 | 11/2 x 11/2 x 3/16 | 11/4 x 11/4 x 346 | 3/8 | 346 | 7 GA | 105 | 47 | | | | | 271 | 3/16 | 3"-4.1# | 3 x 3/8 | 3 x 2 x 3/16 | 11/2 x 11/2 x 3/16 | 11/4 x 11/4 x 3/16 | 3/8 | 346 | 7 GA | 120 | 66 | ˇ^ˇ■965 | | | | 301 | 1/4 | 3"-4.1# | 3 x 3/8 | 3 x 2 x 3/16 | 2 x 2 x 3/16 | 11/2 x 11/2 x 3/16 | 3/8 | 3/16 | 7 GA | 140 | 98 | 1244 | | | | 331 | 1/4 | 4"-5.4# | 4 x V2 | 4 x 3 x M | 2 x 2 x 3/16 | 11/2 x 11/2 x 3/16 | 3/8 | 3/16 | 7 GA | 160 | 141 | 1584 | | | | 361 | 1/4 | 4"-5.4# | 4 x V2 | 4 x 3 x M | 2 x 2 x 3/16 | 11/2 x 11/2 x 3/16 | 3/8 | 3/16 | 1/4 | 240 | 256 | 1924 | | | | 401 | | 4"-5.4# | 4 x 1/i | 4 x 3 x 1/4 | 2 x 2 x 3/16 | 11/2 x 11/2 x 346 | 3/8 | 1/4 | 1/4 | 335 | 439 | 2185 | | | | 441 | 1/4 | 4"-5.4# | 4 x V2 | 4 x 3 x M | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 1/4 | 1/4 | 390 | 641 | 2686 | | | | 491 | | 4"-5.4# | 4 x 1/ | 4 x 3 x 1/4 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 1/4 | 1/4 | 450 | 926 | 3086 | | | | 541 | | 5"-6.7# | 5 x 5/8 | 5 x 31/2 x 5/16 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 1/4 | 1/4 | 530 | 1374 | 3850 | | | | 601 | 1/4 | 5"-6.7# | 5 x 5/8 | 5 x 3^2 x 5/16 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 1/4 | 1/4 | 625 | 2052 | 4486 | | | | 661 | | 5"-6.7# | 5 x 5/8 | 5 x 31/2 x 5/16 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 1/4 | 1/4 | 895 | 3358 | 5567 | | | | 731 | 1/4 | 5"-6.7# | 5 x 5/8 | 5 x 3^2 x 5/16 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 3/8 | 3/8 | 1390 | 6685 | — | | | | 801 | 1/4 | 5"-6.7# | 5 x 5/8 | 5 x 31Ax 5/16 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 3/8 | 3/8 | 1645 | 9867 | — | | | | 891 | | 5"-6.7# | 5 x 5/8 | 5 x 31/2 x 5/16 | 2 x 2 x 3/16 | 2 x 2 x 3/16 | 3/8 | 3/8 | 3/8 | 1960 | 14452 | — | | | | | | | | | | | | | | | | | | | | |
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| | | * Wheel weight and WR2 will change with special diameter and narrow-width construction. Consult nyb. % Bare fan weights for Arr. 4 and Arr. 8 fans are available on application. Consult nyb. | | |
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| | | FLANGED INLET Furnished as standard with holes on vertical centerline. | | |
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| | | FLANGED OUTLET AND EVASE 1. Mounted flush with edge of housing outlet. 2. Furnished as standard with holes on 4" centers from centerlines. | | |
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| | | T C | | |
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| | | DIMENSIONS [inches] | | DIMENSIONS [inches] | | |
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| | | | | | | | | | | | | | Size | Inside diameter | Bolt circle | Outside diameter | Holes | | | | Number | Diameter | | | | 241 | 213/4 | 231/2 | 243/4 | 16 | 9/16 | | | | 271 | 243/8 | 261/8 | 273/8 | 16 | 9/16 | | | | 301 | 267/8 | 291/8 | 307/8 | 16 | 9/16 | | | | 331 | 291/2 | 313/4 | 3312 | 16 | 9/16 | | | | 361 | 327/8 | 351/8 | 367/8 | 16 | 9/16 | | | | 401 | 3618 | 383/8 | 4018 | 16 | 9/16 | | | | 441 | 401/8 | 423/8 | 4418 | 16 | 9/16 | | | | 491 | 437/8 | 461/8 | 477/8 | 24 | 9/16 | | | | 541 | 487/8 | 511-8 | 527/8 | 24 | 9/16 | | | | 601 | 537/8 | 561/8 | 57% | 24 | 9/16 | | | | 661 | 593/8 | 615/8 | 633/8 | 24 | 9/16 | | | | 731 | 661/8 | 683/8 | 7018 | 32 | 9/16 | | | | 801 | 725/8 | 747/8 | 765/8 | 32 | 9/16 | | | | 891 | 805/8 | 827/8 | 845/8 | 32 | 9/16 | | | | | | | | | | | | | |
| | | Standard holes | | |
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| | | | | | | | | | | | | | | | | | | | Size | | Bt | C | D | Mt | Sides | tTop/ bottom | Size | | | | Fan | Evase | Fan | Evase | Fan | Evase | | | | 241 | 23 | 323/4 | 15 | 3/4 | 2012 | 301/4 | 121/2 | 5 | 9 | 3 | 7/16 | | | | 271 | 25 | 36 | 1614 | 3/4 | 221/2 | 331/2 | 133/4 | 7 | 9 | 3 | 7/16 | | | | 301 | 273/8 | 391/2 | 173/4 | 3/4 | 247/8 | 37 | 151/4 | 7 | 9 | 3 | 7/16 | | | | 331 | 303/8 | 44 | 193/4 | 7/8 | 273/8 | 41 | 163/4 | 7 | 11 | 3 | 7/16 | | | | 361 | 331/4 | 481/2 | 211-2 | 7/8 | 301/4 | 451/2 | 181/2 | 9 | 11 | 5 | 7/16 | | | | 401 | 361/2 | 53 | 233/8 | 7/8 | 3312 | 50 | 203/8 | 9 | 13 | 5 | 7/16 | | | | 441 | 39% | 58V4 | 2512 | 7/8 | 367/8 | 5514 | 221/2 | 9 | 5 | 5 | 7/16 | | | | 491 | 443/4 | 647/8 | 285/8 | 11/8 | 403/4 | 607/8 | 245/8 | 11 | 15 | 5 | 9/16 | | | | 541 | 487/8 | 711/4 | 311/4 | 11/8 | 447/8 | 671/4 | 271/4 | 11 | 17 | 7 | 9/16 | | | | 601 | 535/8 | 78 | 341/8 | 11/8 | 495/8 | 74 | 301/8 | 13 | 19 | 7 | 9/16 | | | | 661 | 585/8 | 857/8 | 37 | 11/8 | 545/8 | 817/8 | 33 | 15 | 21 | 9 | 9/16 | | | | 731 | 643/8 | 941/2 | 401/2 | 11/8 | 603/8 | 901/2 | 361/2 | 15 | 23 | 9 | 9/16 | | | | 801 | 707/8 | 1031/2 | 443/8 | 11/8 | 667/8 | 991/2 | 403/8 | 17 | 25 | 9 | 9/16 | | | | 891 | 771/2 | 114 | 483/8 | 11/8 | 731/2 | 110 | 443/8 | 19 | 29 | 11 | 9/16 | | | | | | | | | | | | | | | | | | | |
| | | PAGE 9 | | |
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| | | tDimensions will vary with narrow-width construction. Tolerance: ±V8" | | | Tolerance: ± V8" | | |
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