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PERFORMANCE DATA (cont)
FAN PERFORMANCE — 580F180-300 UNITS (cont)
LEGEND
*Standard low-medium static drive range is 1002 to 1151 rpm. Alternate
high-static drive range is 1193 to 1369. Other rpms require a field-
supplied drive.
Refer to page 221 for general Fan Performance Data notes.
NOTE: Maximum continuous bhp for the standard motor is 8.70 (for
208/230 and 575-v units) and 9.50 (for 460-v units). The maximum con-
tinuous watts is 7915 (for 208/230 and 575-v units) and 8640 (for 460-v
units). Do not adjust motor rpm such that motor maximum bhp and/or
watts is exceeded at the maximum operating cfm. See Evaporator Fan
Motor Performance table for additional information.
580F240275 (20 TONS)*
Cfm
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
6,000 824 2607 3.09 894 2844 3.37 961 3085 3.66 1023 3330 3.95 1083 3578 4.24
6,500 881 3030 3.59 947 3266 3.88 1009 3507 4.16 1069 3751 4.45 1126 3998 4.74
7,000 939 3488 4.14 1001 3725 4.42 1060 3965 4.70 1116 4208 4.99 1170 4454 5.28
7,500 998 3982 4.72 1055 4218 5.00 1111 4458 5.29 1165 4701 5.58 1217 4946 5.87
8,000 1056 4512 5.35 1111 4748 5.63 1164 4988 5.92 1215 5230 6.20 1264 5474 6.49
8,500 1116 5077 6.02 1167 5314 6.30 1218 5553 6.59 1266 5795 6.87 1314 6039 7.16
9,000 1175 5678 6.74 1224 5915 7.02 1272 6154 7.30 1319 6395 7.59 1364 6639 7.88
9,500 1235 6315 7.49 1282 6552 7.77 1327 6791 8.06 1372 7033 8.34 1415 7276 8.63
10,000 1295 6988 8.29 1340 7225 8.57 1383 7465 8.86 1426 7706 9.14 1468 7949 9.43
580F240275 (20 TONS)* (cont)
Cfm
Available External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
6,000 1141 3829 4.54 1196 4082 4.84 1249 4337 5.15 1301 4596 5.45 1351 4856 5.76
6,500 1181 4247 5.04 1234 4499 5.34 1285 4753 5.64 1334 5009 5.94 1383 5267 6.25
7,000 1223 4702 5.58 1274 4953 5.88 1323 5205 6.18 1371 5460 6.48 1417 5716 6.78
7,500 1267 5194 6.16 1316 5443 6.46 1363 5694 6.76 1409 5947 7.06 1454 6202 7.36
8,000 1313 5721 6.79 1359 5970 7.08 1405 6220 7.38 1449 6472 7.68 1493 6726 7.98
8,500 1360 6285 7.46 1405 6533 7.75 1449 6783 8.05 1491 7034 8.34 1533 7286 8.64
9,000 1408 6885 8.17 1451 7132 8.46 1494 7381 8.76 1535 7631 9.05 — — —
9,500 1458 7521 8.92 1499 7768 9.22 1540 8180 9.51 — — — — — —
10,000 1508 8193 9.72 1549 8440 10.01 —————————
580F240275 (20 TONS)* (cont)
Cfm
Available External Static Pressure (in. wg)
2.2 2.4 2.6 2.8 3.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
6,000 1399 5118 6.07 1446 5381 6.38 1492 5647 6.70 1537 5914 7.02 — — —
6,500 1429 5527 6.56 1475 5789 6.87 1520 6052 7.18 — — — — — —
7,000 1462 5974 7.09 1507 6234 7.40 1550 6495 7.71 — — — — — —
7,500 1498 6459 7.66 1540 6717 7.97 —————————
8,000 1535 6981 8.28 — — ——————————
8,500 ———————————————
9,000 ———————————————
9,500 ———————————————
10,000 ———————————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor