Bryant 548F User Manual

Page 35

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35

Table 28 — Fan Performance, 548F072 Standard Motor — Horizontal Discharge Units

LEGEND

*Motor drive range: 1070 to 1460 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. Maximum usable watts input is 2120 and maximum continuous bhp

is 2.40. Extensive motor and electrical testing on these units
ensures that the full range of the motor can be utilized with confi-
dence. Using your fan motors up to the wattage ratings shown will
not result in nuisance tripping or premature motor failure. Unit war-
ranty will not be affected. For additional information on motor perfor-
mance, refer to Indoor-Fan Motor Performance, Table 6.

4. Values include losses for filters, unit casing, and wet coils. See

Table 7 for accessory/FIOP static pressure 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) — STANDARD MOTOR (BELT DRIVE)*

Airflow

(Cfm)

External Static Pressure (in. wg)

0.1

0.2

0.4

0.6

0.8

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1800

765

0.45

487

821

0.51

532

923

0.65

638

1019

0.81

843

1099

0.96

883

1900

802

0.45

539

854

0.58

585

953

0.73

700

1046

0.90

835

1126

1.06

965

2000

840

0.60

600

888

0.66

646

984

0.82

771

1073

0.99

907

1154

1.16

1047

2100

878

0.69

669

923

0.75

716

1015

0.91

843

1101

1.08

981

1182

1.27

1140

2200

916

0.78

739

958

0.85

795

1046

1.01

924

1129

1.19

1072

1209

1.39

1241

2300

954

0.89

827

993

0.96

883

1079

1.13

1022

1160

1.31

1173

1237

1.51

1344

2400

993

1.00

916

1029

1.07

973

1112

1.25

1123

1190

1.43

1275

1264

1.63

1447

2500

1031

1.13

1022

1066

1.20

1081

1145

1.39

1241

1220

1.57

1396

1292

1.77

1569

2600

1070

1.26

1131

1103

1.34

1199

1179

1.52

1353

1251

1.71

1517

1322

1.92

1700

2700

1109

1.41

1258

1140

1.48

1318

1212

1.67

1482

1283

1.87

1656

1352

2.09

1849

2800

1148

1.57

1396

1177

1.64

1456

1246

1.83

1621

1316

2.04

1805

1383

2.26

1997

2900

1188

1.74

1543

1215

1.81

1604

1281

2.00

1770

1349

2.22

1962

1413

2.44

2154

3000

1227

1.92

1700

1253

2.00

1770

1316

2.19

1936

1382

2.42

2136

1444

2.63

2317

548F072 (6 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)

Airflow

(Cfm)

External Static Pressure (in. wg)

1.0

1.2

1.4

1.6

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1800

1178

1.14

1031

1249

1.32

1182

1316

1.52

1353

1382

1.72

1526

1900

1201

1.23

1106

1274

1.43

1275

1338

1.62

1439

1402

1.83

1621

2000

1226

1.33

1990

1297

1.53

1361

1363

1.73

1534

1424

1.94

1718

2100

1252

1.45

1292

1320

1.64

1456

1388

1.85

1639

1448

2.07

1831

2200

1280

1.58

1404

1345

1.77

1569

1410

1.97

1744

1473

2.20

1945

2300

1309

1.71

1517

1372

1.91

1691

1434

2.11

1866

1496

2.34

2067

2400

1336

1.85

1639

1400

2.06

1823

1459

2.26

1997

1519

2.48

2188

2500

1363

2.00

1770

1428

2.22

1962

1486

2.43

2145

1543

2.65

2335

2600

1390

2.15

1901

1456

2.38

2102

1514

2.61

2300

1569

2.83

2487

2700

1418

2.31

2041

1483

2.56

2257

1543

2.80

2462

2800

1446

2.48

2188

1510

2.73

2403

2900

1476

2.67

2352

1537

2.92

2562

3000

1506

2.88

2529

Bhp

Brake Horsepower Input to Fan

FIOP — Factory-Installed Option
Watts — Input Watts to Motor

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