Bryant 558F User Manual
Page 46
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 or premature 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