Bryant 580D User Manual
Page 49

PERFORMANCE DATA (cont)
FAN PERFORMANCE — 579F180-300 UNITS (cont)
579F240 (20 TONS)*
Airflow
(Cfm)
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
6000
767
1.80
1617
858
2.20
1932
944
2.50
2256
1026
2.90
2600
1104
3.30
2967
1181
3.80
3358
6500
817
2.20
1992
903
2.60
2329
985
3.00
2673
1062
3.40
3031
1136
3.80
3410
1209
4.30
3811
7000
869
2.70
2427
950
3.10
2787
1028
3.50
3151
1102
3.90
3527
1172
4.40
3919
1241
4.80
4331
7500
920
3.30
2919
998
3.70
3303
1073
4.10
3689
1143
4.60
4083
1210
5.00
4490
1275
5.50
4914
8000
973
3.90
3476
1047
4.30
3886
1119
4.80
4294
1186
5.30
4708
1250
5.70
5131
1313
6.20
5569
8500
1026
4.60
4102
1097
5.10
4635
1166
5.60
4967
1231
6.00
5401
1292
6.50
5843
1352
7.00
6297
9000
1079
5.40
4800
1147
5.90
5257
1214
6.40
5714
1276
6.90
6171
1336
7.40
6632
1393
7.90
7102
9500
1133
6.20
5576
1199
6.80
6058
1263
7.30
6540
1323
7.90
7018
1381
8.40
7500
1436
8.90
7988
10,000
1188
7.20
6432
1250
7.80
6939
1313
8.30
7444
1371
8.90
7946
1426
9.50
8449
—
—
—
579F240 (20 TONS)* (cont)
Airflow
(Cfm)
External Static Pressure (in. wg)
1.4
1.6
1.8
1.9
2.0
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
Rpm
Bhp
Watts
6000
1255
4.20
3772
1327
4.70
4206
1396
5.20
4658
1431
5.45
4884
1465
5.70
5110
6500
1279
4.70
4233
1348
5.20
4677
1415
5.80
5139
1449
6.10
5370
1482
6.40
5601
7000
1308
5.30
4762
1373
5.80
5215
1437
6.40
5686
1469
6.70
5922
1501
7.00
6157
7500
1339
6.00
5356
1401
6.50
5818
1462
7.00
6298
1493
7.25
6538
1523
7.50
6778
8000
1373
6.70
6024
1433
7.30
6495
1493
7.80
6966
1523
8.05
7202
—
—
—
8500
1410
7.60
6765
1467
8.10
7248
1524
8.70
7731
—
—
—
—
—
—
9000
1449
8.50
7584
1503
9.00
8033
—
—
—
—
—
—
—
—
—
9500
1488
9.40
8403
—
—
—
—
—
—
—
—
—
—
—
—
10,000
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
LEGEND
Bhp
— Brake Horsepower Input to Fan
FIOP
— Factory-Installed Option
Watts — Input Watts to Motor
*Standard low-medium static motor drive range is 1002 to 1225 rpm. Al-
ternate high static motor drive range is 1193 to 1458 rpm. Other rpms
require a field-supplied drive.
NOTES:
1. Static pressure losses (i.e., economizer) must be added to exter-
nal static pressure before entering Fan Performance table. See
Accessory/FIOP Static Pressure table on page 52 for more
information.
2. Interpolation is permissible. Do not extrapolate.
3. Maximum continuous bhp is 8.7 for 208/230-v units and 9.5 for 460-v
units. The maximum continuous watts are 7915 for the 208/230-v
units and 8640 for the 460-v units. Extensive motor and drive testing
on these units ensures that the full horsepower range of the motor
can be utilized with confidence. Using your fan motors up to the
watts rating shown will not result in nuisance tripping or premature
motor failure. Unit warranty will not be affected.
4. Deduct 0.2 in. wg static pressure for high heat units at or above
9000 cfm. Deduct 0.3 in. wg static pressure for high heat units at or
above 10,000 cfm.
49