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AIR DELIVERY — 559F180-300 UNITS (cont)
559F300 (25 TON)
Airflow
(Cfm)
Standard Belt-Drive Motor
External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0 1.2
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
7,000 832 2.49 2297 916 2.86 2634 993 3.23 2978 1065 3.62 3332 1134 4.01 3,697 1200 4.43 4,076
7,500 881 3.00 2761 961 3.39 3119 1035 3.78 3483 1104 4.19 3855 1170 4.60 4,237 1233 5.03 4,631
8,000 930 3.57 3284 1007 3.98 3664 1077 4.40 4049 1144 4.82 4440 1207 5.25 4,840 1268 5.70 5,249
8,500 980 4.20 3873 1053 4.64 4274 1121 5.08 4679 1185 5.53 5090 1246 5.98 5,508 1305 6.44 5,934
9,000 1030 4.92 4528 1100 5.38 4951 1166 5.84 5377 1228 6.31 5808 1286 6.78 6,244 1343 7.26 6,689
9,500 1081 5.70 5254 1148 6.19 5700 1211 6.67 6146 1271 7.16 6597 1328 7.66 7,053 1383 8.16 7,515
10,000 1132 6.57 6055 1197 7.08 6523 1257 7.59 6991 1315 8.10 7462 1370 8.62 7,937 1423 9.14 8,418
10,500 1183 7.53 6935 1245 8.06 7425 1304 8.59 7913 1360 9.13 8404 1413 9.66 8,899 1465 10.20 9,400
11,000 1235 8.57 7896 1295 9.13 8408 1351 9.68 8918 1405 10.24 9430 1457 10.80 9,944 1507 11.36 10,465
11,250 1261 9.13 8408 1320 9.70 8932 1375 10.26 9452 1428 10.83 9974 1479 11.40 10,499 — — —
559F300 (25 TON) (cont)
Airflow
(Cfm)
Standard Belt-Drive Motor
External Static Pressure (in. wg)
1.4 1.6 1.8
Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts
7,000 1263 4.85 4470 1326 5.30 4880 1386 5.76 5307
7,500 1294 5.47 5038 1353 5.93 5458 1411 6.40 5893
8,000 1327 6.16 5670 1384 6.63 6102 1440 7.11 6549
8,500 1362 6.92 6371 1416 7.40 6816 1470 7.90 7215
9,000 1398 7.75 7141 1451 8.25 7602 1503 8.77 8074
9,500 1436 8.67 7985 1487 9.19 8462 — — —
10,000 1475 9.67 8905 1525 10.20 9400 — — —
10,500 1515 10.76 9907 — — — — — —
11,000 —— ——— ————
11,250 —— ——— ————
LEGEND
Bhp — Brake Horsepower Input to Fan
FIOP — Factory-Installed Option
Watts — Watts Input to Motor
NOTES:
1. Boldface indicates field-supplied drive is required. (See Note 3.)
2. indicates additional capability of 460-v motor.
3. Factory-shipped motor drive range is 1323 to 1579 rpm. Other rpms
require a field-supplied drive.
4. Maximum continuous bhp is 10.26 (208/230, 575 v) or 11.80 (460 v)
and maximum continuous watts are 9510 (208/230, 575 v) or
11,000 (460 v). Do not adjust motor rpm such that motor maximum
bhp and/or watts is exceeded at the maximum operating cfm.
5. Static pressure losses (i.e., economizer) must be added to external
static pressure before entering Air Delivery table.
6. Interpolation is permissible. Do not extrapolate.
7. Fan performance is based on wet coils, clean filters, and
casing losses. See page 47 for accessory/FIOP static pressure
information.
8. Extensive motor and drive testing on these units ensures that the
full horsepower and watts range of the motor can be utilized with
confidence. Using your fan motors up to the watts or bhp rating
shown will not result in nuisance tripping orpremature motor failure.
Unit warranty will not be affected.
9. Minimum allowable cfm is 280 cfm/ton in cooling.
10. Use of a field-supplied motor may affect wire sizing. Contact your
local representative for details. For additional information on motor
performance, refer to Evaporator-Fan Motor Performance table on
page 62.
NOTE: The 389210-201 high static regain adapter accessory may
be used to provide horizontal supply/return.
NOTE: The 389210-201 horizontal supply/return adapter accessory
improves 559F180-300 fan performance by increasing external
static pressure by amount shown above.
559F180-300 Horizontal Supply/Return Fan Performance
With 389210-201 High Static Regain Adapter Curb
46