Bryant 581B 800 350 904 438 999 535 1087 640, 753, 839 412 938 505 1030 605 1115 714, 829, 914

Page 32

Table 26 — Fan Performance 581B060 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

 

 

 

 

 

EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

0.2

 

 

0.4

 

 

0.6

 

 

0.8

 

 

1.0

 

CFM

 

 

 

 

 

 

 

 

 

 

 

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1500

800

0.39

350

904

0.49

438

999

0.60

535

1087

0.72

640

1169

0.85

753

1600

839

0.46

412

938

0.57

505

1030

0.68

605

1115

0.80

714

1195

0.93

829

1700

879

0.54

483

974

0.65

580

1062

0.77

684

1144

0.90

796

1221

1.03

914

1800

919

0.63

561

1010

0.75

663

1095

0.87

771

1174

1.00

886

1250

1.14

1008

1900

960

0.73

648

1047

0.85

754

1129

0.98

867

1206

1.11

986

1279

1.25

1111

2000

1001

0.84

744

1085

0.96

855

1163

1.09

972

1238

1.23

1095

1309

1.38

1224

2100

1043

0.96

850

1123

1.09

965

1199

1.22

1086

1271

1.37

1213

1340

1.52

1346

2200

1085

1.09

966

1162

1.22

1086

1235

1.36

1211

1305

1.51

1342

1372

1.67

1479

2300

1127

1.23

1092

1201

1.37

1217

1272

1.52

1347

1340

1.67

1482

1405

1.83

1623

2400

1169

1.38

1229

1241

1.53

1359

1310

1.68

1493

1375

1.84

1633

1439

2.00

1778

2500

1212

1.55

1378

1281

1.70

1513

1348

1.86

1652

1412

2.02

1796

1473

2.19

1945

 

 

 

 

 

 

 

 

 

 

 

 

AIRFLOW

 

 

 

 

 

EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

1.2

 

 

1.4

 

 

1.6

 

 

1.8

 

 

2.0

 

CFM

 

 

 

 

 

 

 

 

 

 

 

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1500

1247

0.98

873

1320

1.13

1002

1390

1.28

1137

1457

1.44

1280

1522

1.61

1430

1600

1270

1.07

952

1342

1.22

1083

1411

1.37

1221

1476

1.54

1365

1540

1.71

1517

1700

1295

1.17

1040

1365

1.32

1173

1432

1.48

1313

1497

1.64

1459

1559

1.82

1612

1800

1321

1.28

1137

1390

1.43

1273

1455

1.59

1415

1518

1.76

1563

1579

1.93

1718

1900

1348

1.40

1243

1415

1.56

1381

1479

1.72

1526

1541

1.89

1677

1601

2.06

1834

2000

1377

1.53

1359

1442

1.69

1500

1505

1.86

1648

1565

2.03

1801

1624

2.21

1961

2100

1406

1.67

1485

1470

1.83

1629

1531

2.00

1780

1591

2.18

1936

1648

2.36

2098

2200

1437

1.83

1621

1499

1.99

1769

1559

2.16

1923

1617

2.34

2082

1673

2.53

2246

2300

1468

1.99

1769

1529

2.16

1920

1587

2.34

2077

1644

2.52

2239

1699

2.71

2406

2400

1500

2.17

1928

1559

2.35

2083

1616

2.53

2243

1672

2.71

2408

1726

2.90

2579

2500

1533

2.36

2098

1591

2.54

2257

1647

2.73

2421

—

—

—

—

—

—

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

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

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 2.90.

3.See page 33 for general fan performance notes.

Table 27 — Fan Performance 581B072 — Horizontal Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

 

 

 

 

 

EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

0.2

 

 

0.4

 

 

0.6

 

 

0.8

 

 

1.0

 

CFM

 

 

 

 

 

 

 

 

 

 

 

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1800

913

0.64

569

1010

0.80

715

1098

0.98

869

1178

1.16

1032

1252

1.35

1203

1900

952

0.73

652

1046

0.91

805

1131

1.09

965

1210

1.28

1134

1282

1.48

1311

2000

992

0.84

744

1083

1.02

903

1166

1.21

1070

1242

1.40

1245

1313

1.61

1427

2100

1032

0.95

844

1120

1.14

1010

1200

1.33

1184

1275

1.54

1365

1345

1.75

1553

2200

1073

1.07

954

1158

1.27

1127

1236

1.47

1307

1308

1.68

1495

1377

1.90

1689

2300

1114

1.21

1074

1196

1.41

1254

1272

1.62

1440

1343

1.84

1634

1409

2.07

1834

2400

1155

1.36

1204

1234

1.57

1391

1308

1.78

1584

1377

2.01

1784

1443

2.24

1990

2500

1196

1.51

1345

1273

1.73

1538

1345

1.96

1738

1412

2.19

1945

—

—

—

2600

1238

1.69

1497

1312

1.91

1697

1382

2.14

1904

1448

2.38

2117

—

—

—

2700

1280

1.87

1660

1352

2.10

1867

1420

2.34

2081

—

—

—

—

—

—

2800

1322

2.07

1835

1392

2.31

2050

—

—

—

—

—

—

—

—

—

2900

1364

2.28

2023

—

—

—

—

—

—

—

—

—

—

—

—

3000

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

 

 

 

 

 

 

 

 

 

 

 

 

AIRFLOW

 

 

 

 

 

EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

1.2

 

 

1.4

 

 

1.6

 

 

1.8

 

 

2.0

 

CFM

 

 

 

 

 

 

 

 

 

 

 

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

Rpm

Bhp

Watts

1800

1322

1.56

1382

1388

1.77

1568

1451

1.98

1762

1510

2.21

1962

—

—

—

1900

1351

1.68

1495

1416

1.90

1686

1477

2.12

1885

1536

2.35

2090

—

—

—

2000

1380

1.82

1617

1444

2.04

1814

1505

2.27

2017

—

—

—

—

—

—

2100

1411

1.97

1748

1473

2.20

1950

—

—

—

—

—

—

—

—

—

2200

1441

2.13

1890

1503

2.36

2097

—

—

—

—

—

—

—

—

—

2300

1473

2.30

2041

—

—

—

—

—

—

—

—

—

—

—

—

2400

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2500

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2600

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2700

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2800

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

2900

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3000

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

*Motor drive range: 1119 to 1585 rpm. All other rpms require field- supplied drive.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 2.40.

3.See page 33 for general fan performance notes.

—32—

Page 31 Page 33
Image 32
Page 31 Page 33
Contents Contents Safety ConsiderationsInstallation Provide Unit SupportII. Field Fabricate Ductwork III. Determine Location of Drain Line and External TrapRoof Curb Unit Size Accessory CRRFCURB001A01 CRBTMPWR001A01CRBTMPWR002A01 CRBTMPWR003A01Install Flue Hood VI. Install GAS PipingIV. RIG and Place Unit PositioningUnit Operating Weight 581B 036048 060Physical Data 581B036-072 LOSS-OF-CHARGE SWITCH/LOW-PRESSURE Furnace SectionFreeze Protection Thermostat OUTDOOR-AIR Inlet ScreensBase Unit Dimensions 581B036-072 Field Power Supply Field Control WiringHeat Anticipator Settings Steel Pipe Spacing of Supports Nominal Diameter DimensionPower Wiring Connections Low-Voltage Connections With or Without EconomizerPower Exhaust MCA Mocp FAN MotorDisconnect SIZE† RLA LRA FLA MCA MocpSIZE† FAN Motor SupplyVIII. Adjust FACTORY-INSTALLED Options Disconnect SwitchPerfect Humidity Dehumidification System LPSDamper Panel with Manual Outdoor-Air Damper Installed Manual Outdoor-Air DamperOptional Manual Outdoor-Air Damper With Hood Attached Indoor Coil Access Panel Relocation EconoMi$er IV Standard SensorsBarometric Flow Capacity EconoMi$er IV Sensor Usage Supply Air Sensor Temperature/Resistance ValuesEconoMi$er IV Control Modes Return Air Temperature or Enthalpy Sensor Mounting Location Enthalpy Changeover Set Points Page 581B Fan Rpm at Motor Pulley Setting With High-Static Motor IX. Adjust EVAPORATOR-FAN Speed581B Fan Rpm at Motor Pulley Setting With Standard Motor Phase Continuous BHP Unit Maximum Unit Voltage581B AMP DrawEvaporator-Fan Motor Data High-Static Motors Accessory/FIOP EconoMi$er IV Static Pressure* in. wgOutdoor Sound Power Total Unit 1294 1175 1346 1275 1400 1147 972 12651320 1310 1371 1419 1500 1175 1086 1292666 257 778 367 871 471 952 572 670701 306 810 426 901 540 981 651 7601649 18031470 1784 1967967 563 1008 643805 1049 731Rpm Bhp Watts 900 553 134 782 316 870 417 9481000 582 163 807 358 894 466 971643 234 762 675 277707 326 740 382800 350 904 438 999 535 839 412 938 505 1030 605879 483 974 580 919 561800 350 904 438 999 535 1087 640 753839 412 938 505 1030 605 1115 714 829General FAN Performance Notes VI. Internal Wiring VII. Refrigerant Service PortsPRE-START-UP START-UP Unit PreparationXII. Heating CoolingXI. Main Burners XIII. Safety Relief XV. Operating SequencePerfect Humidity Normal Design Cooling Operation Thermostat Input Economizer Function 581B Unit OperationService Cleaning IV. ECONOMI$ER IV AdjustmentVI. HIGH-PRESSURE Switch VII. LOSS-OF-CHARGE SwitchTo Use Cooling Charging Chart, Standard Unit Low Charge CoolingPerfect Humidity System Charging Unit 581BCooling Charging Chart, Standard 581B036 Condenser FAN Must be Operating XII. Limit Switch XV. Replacement PartsFlue GAS Passageways XI. COMBUSTION-AIR BlowerLOW Heat Units Medium High Heat UnitsCAP OLRCLO CompTroubleshooting Unit Troubleshooting LED Error Code Service AnalysisSymptom Cause Remedy LED OFFHeating Service Analysis Problem Cause RemedyCooling Service Analysis Problem Cause RemedyII. ECONOMI$ER IV Troubleshooting EconoMi$er IV Troubleshooting Completion EconoMi$er IV Input/Output LogicInputs Outputs Demand Control EnthalpyIndex Page START-UP Checklist TemperaturesPreliminary Information III. START-UP Electrical
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581B specifications

The Bryant 581B is an innovative and highly efficient gas furnace that stands out in the HVAC market for its remarkable performance, reliability, and advanced features. Designed to provide optimal heating comfort, the Bryant 581B is perfect for homeowners seeking both quality and energy efficiency.

One of the main features of the Bryant 581B is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 80%, this gas furnace maximizes energy usage, ensuring that a significant portion of the fuel is converted into heat for your home. This efficiency not only translates into lower energy bills but also reduces the carbon footprint, making it an environmentally friendly choice.

The furnace is equipped with a multi-speed blower motor that enhances comfort by providing consistent airflow throughout the home. This technology adjusts to different heating demands, ensuring that every room reaches the desired temperature without the discomfort of hot or cold spots. The quiet operation of the blower motor also adds to the overall comfort, creating a peaceful home environment.

Another notable characteristic of the Bryant 581B is its durable construction. It features a robust heat exchanger built from high-quality materials, designed to withstand the rigors of daily use. The compact design of the furnace allows it to fit seamlessly into various spaces, making it an ideal choice for both new installations and replacement projects.

The Bryant 581B also comes with advanced safety features, including a self-diagnostic control board that monitors the system's performance. This feature allows for easy troubleshooting and maintenance, prolonging the life of the furnace. Additionally, the furnace is equipped with an induced draft blower that enhances venting efficiency and safety by ensuring that combustion gases are safely expelled from the home.

For homeowners looking for enhanced control, the Bryant 581B is compatible with a range of smart thermostats, providing the ability to monitor and adjust heating settings remotely. This integration with smart technology ensures that homeowners can maintain their desired comfort levels while maximizing efficiency.

In conclusion, the Bryant 581B gas furnace is a top-tier option that combines efficiency, durability, and modern technology. With its high AFUE rating, multi-speed blower, and advanced safety features, it promises to deliver unparalleled comfort and peace of mind for years to come. Whether for a new build or an upgrade, the Bryant 581B is an investment that pays off in both comfort and savings.
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