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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 more information.
580F240360 (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
6,000 868 2752 3.26 934 2987 3.54 997 3227 3.83 1058 3470 4.12 1115 3716 4.41
6,500 929 3201 3.80 991 3436 4.08 1051 3675 4.36 1108 3917 4.65 1162 4163 4.94
7,000 991 3687 4.37 1049 3923 4.65 1105 4161 4.94 1159 4403 5.22 1211 4647 5.51
7,500 1054 4211 5.00 1109 4447 5.28 1161 4686 5.56 1213 4926 5.84 1262 5170 6.13
8,000 1117 4773 5.66 1168 5009 5.94 1218 5247 6.22 1267 5488 6.51 1314 5731 6.80
8,500 1180 5373 6.37 1229 5609 6.65 1277 5847 6.94 1323 6088 7.22 1368 6331 7.51
9,000 1244 6011 7.13 1290 6247 7.41 1335 6485 7.69 1380 6726 7.98 1423 6968 8.27
9,500 1308 6687 7.93 1352 6924 8.21 1395 7162 8.50 1437 7402 8.78 1479 7644 9.07
10,000 1372 7401 8.78 1414 7638 9.06 1455 7876 9.34 1496 8117 9.63 1535 8358 9.92
580F240360 (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 1171 3965 4.70 1224 4216 5.00 1276 4469 5.30 1326 4726 5.61 1374 4983 5.91
6,500 1215 4410 5.23 1266 4659 5.53 1316 4911 5.83 1364 5165 6.13 1411 5421 6.43
7,000 1262 4894 5.81 1311 5142 6.10 1358 5392 6.40 1404 5645 6.70 1449 5899 7.00
7,500 1310 5415 6.42 1357 5663 6.72 1403 5912 7.01 1447 6164 7.31 1490 6416 7.61
8,000 1360 5976 7.09 1405 6222 7.38 1449 6471 7.68 1492 6721 7.97 1533 6973 8.27
8,500 1412 6575 7.80 1455 6821 8.09 1497 7068 8.39 1538 7318 8.68 — — —
9,000 146572128.56150674578.85154777059.14——————
9,500 151978889.36————————————
10,000 ———————————————
580F240360 (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 1422 5243 6.22 1468 5505 6.53 1513 5768 6.84 — — — — — —
6,500 1456 5679 6.74 1501 5938 7.04 1544 6199 7.35 — — — — — —
7,000 1493 6155 7.30 1536 6412 7.61 —————————
7,500 1533 6670 7.91 — — ——————————
8,000 ———————————————
8,500 ———————————————
9,000 ———————————————
9,500 ———————————————
10,000 ———————————————
Bhp — Brake Horsepower
Watts — Input Watts to Motor
580F180-300