Bryant 581B 643 234 762, 707 326, 740 382, 1201, 1189 1191, 705, 675 277 790, 777, 855, 941

Page 30

Table 22 — Fan Performance 581B048 — 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

1200

643

0.23

234

762

0.34

343

859

0.46

458

944

0.58

579

1020

0.71

705

1300

675

0.28

277

790

0.40

394

886

0.52

517

969

0.65

644

1044

0.78

777

1400

707

0.33

326

819

0.45

452

913

0.58

581

996

0.72

716

1070

0.86

855

1500

740

0.38

382

849

0.52

515

941

0.66

653

1023

0.80

795

1096

0.95

941

1600

773

0.45

444

879

0.59

586

970

0.73

731

1050

0.88

880

1123

1.04

1034

1700

807

0.52

513

910

0.67

663

999

0.82

817

1078

0.98

973

1150

1.14

1134

1800

841

0.59

589

942

0.75

749

1029

0.91

910

1106

1.08

1074

1900

875

0.68

674

974

0.85

842

1059

1.02

1012

1135

1.19

1184

2000

910

0.77

767

1006

0.95

944

1090

1.13

1122

 

 

 

 

 

 

 

 

 

 

 

 

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

1200

1089

0.84

837

1153

0.98

974

1213

1.12

1115

1300

1113

0.92

915

1177

1.06

1058

1400

1138

1.01

1000

1201

1.15

1149

1500

1163

1.10

1092

1600

1189

1.20

1191

1700

1800

1900

2000

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

*Motor drive range: 770 to 1185 rpm. All other rpms require field- supplied drive.

NOTES:

1.Boldface indicates field-supplied drive is required.

2.Maximum continuous bhp is 1.20.

3.See page 33 for general fan performance notes.

Table 23 — Fan Performance 581B048 — 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

1200

643

0.23

234

762

0.34

343

859

0.46

458

944

0.58

579

1020

0.71

705

1300

675

0.28

277

790

0.40

394

886

0.52

517

969

0.65

644

1044

0.78

777

1400

707

0.33

326

819

0.45

452

913

0.58

581

996

0.72

716

1070

0.86

855

1500

740

0.38

382

849

0.52

515

941

0.66

653

1023

0.80

795

1096

0.95

941

1600

773

0.45

444

879

0.59

586

970

0.73

731

1050

0.88

880

1123

1.04

1034

1700

807

0.52

513

910

0.67

663

999

0.82

817

1078

0.98

973

1150

1.14

1134

1800

841

0.59

589

942

0.75

749

1029

0.91

910

1106

1.08

1074

1177

1.25

1242

1900

875

0.68

674

974

0.85

842

1059

1.02

1012

1135

1.19

1184

1205

1.37

1360

2000

910

0.77

767

1006

0.95

944

1090

1.13

1122

1165

1.31

1302

1234

1.49

1485

 

 

 

 

 

 

 

 

 

 

 

 

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

1200

1089

0.84

837

1153

0.98

974

1213

1.12

1115

1270

1.27

1262

1324

1.42

1413

1300

1113

0.92

915

1177

1.06

1058

1237

1.21

1205

1293

1.36

1358

1347

1.52

1514

1400

1138

1.01

1000

1201

1.15

1149

1261

1.31

1303

1317

1.47

1461

1370

1.63

1623

1500

1163

1.10

1092

1226

1.25

1247

1285

1.41

1407

1341

1.58

1571

1394

1.75

1740

1600

1189

1.20

1191

1252

1.36

1353

1310

1.53

1520

1365

1.70

1690

1418

1.87

1865

1700

1216

1.31

1299

1277

1.48

1468

1335

1.65

1640

1390

1.83

1817

1442

2.01

1998

1800

1242

1.42

1414

1303

1.60

1590

1361

1.78

1770

1415

1.96

1953

1467

2.15

2140

1900

1270

1.55

1538

1330

1.73

1721

1387

1.92

1908

1441

2.11

2098

1493

2.30

2292

2000

1297

1.68

1672

1357

1.87

1862

1414

2.07

2055

1467

2.26

2252

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

*Motor drive range: 1075 to 1455 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.

30

Image 30
Contents Installation ContentsSafety Considerations Provide Unit SupportII. Field Fabricate Ductwork III. Determine Location of Drain Line and External TrapCRBTMPWR002A01 Roof Curb Unit Size Accessory CRRFCURB001A01CRBTMPWR001A01 CRBTMPWR003A01IV. RIG and Place Unit Install Flue HoodVI. Install GAS Piping Positioning048 Unit Operating Weight581B 036 060Physical Data 581B036-072 Freeze Protection Thermostat LOSS-OF-CHARGE SWITCH/LOW-PRESSUREFurnace Section OUTDOOR-AIR Inlet ScreensBase Unit Dimensions 581B036-072 Heat Anticipator Settings Field Power SupplyField Control Wiring Steel Pipe Spacing of Supports Nominal Diameter DimensionPower Wiring Connections Low-Voltage Connections With or Without EconomizerDisconnect SIZE† Power Exhaust MCA MocpFAN Motor RLA LRA FLA MCA MocpSIZE† FAN Motor SupplyPerfect Humidity Dehumidification System VIII. Adjust FACTORY-INSTALLED OptionsDisconnect Switch 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$er IV Standard SensorsBarometric Flow Capacity Supply Air Sensor Temperature/Resistance Values EconoMi$er IV Control ModesEconoMi$er IV Sensor Usage Return Air Temperature or Enthalpy Sensor Mounting Location Enthalpy Changeover Set Points Page IX. Adjust EVAPORATOR-FAN Speed 581B Fan Rpm at Motor Pulley Setting With Standard Motor581B Fan Rpm at Motor Pulley Setting With High-Static Motor 581B Phase Continuous BHPUnit Maximum Unit Voltage AMP DrawAccessory/FIOP EconoMi$er IV Static Pressure* in. wg Outdoor Sound Power Total UnitEvaporator-Fan Motor Data High-Static Motors 1320 1310 1371 1419 1500 1175 1086 1294 1175 1346 1275 1400 1147 9721265 1292701 306 810 426 901 540 981 651 666 257 778 367 871 471 952 572670 7601470 1784 16491803 1967805 967 5631008 643 1049 7311000 582 163 Rpm Bhp Watts 900 553 134782 316 870 417 948 807 358 894 466 971707 326 643 234 762675 277 740 382879 483 974 580 800 350 904 438 999 535839 412 938 505 1030 605 919 561839 412 938 505 1030 605 1115 714 800 350 904 438 999 535 1087 640753 829General FAN Performance Notes PRE-START-UP VI. Internal WiringVII. Refrigerant Service Ports START-UP Unit PreparationCooling XI. Main BurnersXII. Heating XIII. Safety Relief XV. Operating SequencePerfect Humidity Normal Design Cooling Operation Thermostat Input Economizer Function 581B Unit OperationVI. HIGH-PRESSURE Switch Service CleaningIV. ECONOMI$ER IV Adjustment VII. LOSS-OF-CHARGE SwitchPerfect Humidity System Charging To Use Cooling Charging Chart, Standard UnitLow Charge Cooling Unit 581BCooling Charging Chart, Standard 581B036 Condenser FAN Must be Operating Flue GAS Passageways XII. Limit SwitchXV. Replacement Parts XI. COMBUSTION-AIR BlowerLOW Heat Units Medium High Heat UnitsCLO CAPOLR CompSymptom Cause Remedy Troubleshooting Unit TroubleshootingLED Error Code Service Analysis LED OFFHeating Service Analysis Problem Cause RemedyCooling Service Analysis Problem Cause RemedyII. ECONOMI$ER IV Troubleshooting Inputs Outputs EconoMi$er IV Troubleshooting CompletionEconoMi$er IV Input/Output Logic Demand Control EnthalpyIndex Page Preliminary Information START-UP ChecklistTemperatures 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.

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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.