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Bryant 548F User Manual

Page 29

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29

Table 18 — Fan Performance, 548F072 High-Static Motor — Vertical Discharge Units

LEGEND

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-

supplied drive.

NOTES:

1. Boldface indicates field-supplied drive is required.
2.

indicates field-supplied motor and drive are required.

3. Values include losses for filters, unit casings, and wet coils. See

Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 2.9 and the maximum continuous

watts are 2562. Extensive motor and electrical testing on these
units ensures that the full range of the motor can be utilized with
confidence. Using your fan motors up to the wattage ratings shown
will not result in nuisance tripping or premature motor failure. Unit
warranty will not be affected. See Indoor-Fan Motor Performance,
Table 6 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your

Bryant representative for details.

6. Interpolation is permissible. Do not extrapolate.

548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

Airflow

(Cfm)

External Static Pressure (in. wg)

0.2

0.4

0.6

0.8

1.0

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1800

978

0.66

700

1063

0.82

771

1147

0.97

891

1248

1.20

1081

1322

1.33

1190

1900

1023

0.78

779

1097

0.91

843

1175

1.11

1006

1266

1.29

1158

1356

1.47

1310

2000

1068

0.90

867

1132

1.01

924

1218

1.23

1106

1303

1.41

1258

1397

1.52

1353

2100

1115

1.00

998

1180

1.17

1056

1261

1.35

1207

1340

1.53

1361

1428

1.66

1473

2200

1159

1.15

1081

1214

1.28

1148

1310

1.52

1353

1375

1.63

1447

1459

1.80

1595

2300

1202

1.29

1140

1248

1.38

1233

1358

1.69

1499

1410

1.72

1526

1488

1.93

1709

2400

1237

1.41

1224

1292

1.55

1378

1392

1.81

1604

1460

1.90

1683

1532

2.14

1892

2500

1272

1.53

1335

1335

1.71

1517

1427

1.94

1718

1518

2.16

1910

1575

2.35

2076

2600

1320

1.68

1482

1368

1.81

1604

1458

2.06

1823

1562

2.42

2136

1620

2.59

2283

2700

1361

1.82

1595

1400

1.91

1691

1490

2.19

1936

1602

2.64

2326

1666

2.85

2504

2800

1402

1.95

1639

1439

2.08

1840

1543

2.43

2145

1642

2.86

2512

1775

3.62

3290

2900

1446

2.16

1814

1477

2.16

1989

1585

2.65

2335

1753

3.58

3262

3000

1489

2.36

2032

1529

2.52

2223

1598

2.73

2444

1767

3.69

3360

548F072 (6 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

External Static Pressure (in. wg)

0.2

0.4

0.6

0.8

1.0

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1800

1395

1.46

1301

1475

1.56

1387

1542

1.71

1517

1607

1.94

1761

1667

2.16

1967

1900

1430

1.58

1404

1504

1.69

1499

1556

1.82

1613

1621

2.06

1874

1682

2.30

2093

2000

1459

1.67

1482

1532

1.82

1613

1588

1.97

1744

1655

2.23

2029

1717

2.49

2266

2100

1489

1.80

1595

1567

1.99

1761

1626

2.16

1910

1694

2.44

2224

1758

2.73

2485

2200

1528

1.95

1726

1603

2.17

1919

1666

2.37

2093

1736

2.68

2441

2300

1561

2.13

1884

1637

2.35

2076

1710

2.54

2272

1782

2.87

2616

2400

1584

2.28

2015

1671

2.55

2249

1756

2.70

2467

2500

1633

2.53

2232

1698

2.72

2405

1779

3.13

2848

2600

1675

2.77

2436

1768

3.26

2964

2700

1775

3.45

3141

2800

2900

3000

Bhp

Brake Horsepower Input to Fan

FIOP

Factory-Installed Option

Watts — Input Watts to Motor