Bryant 581B 1294 1175 1346 1275 1400 1147 972, 1265, 1320 1310 1371 1419 1500 1175 1086, 1292

Page 25

Table 12 — Fan Performance 581B036 — Vertical 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

900

567

0.15

145

688

0.22

222

786

0.30

296

871

0.37

368

947

0.44

437

1000

599

0.18

177

717

0.27

265

814

0.35

349

897

0.43

430

972

0.51

509

1100

632

0.22

215

747

0.31

313

842

0.41

407

925

0.50

498

999

0.59

587

1200

666

0.26

257

778

0.37

367

871

0.47

471

952

0.57

572

1025

0.67

670

1300

701

0.31

306

810

0.43

426

901

0.54

540

981

0.65

651

1053

0.76

760

1400

737

0.36

361

842

0.49

491

931

0.62

616

1010

0.74

738

1081

0.86

856

1500

773

0.42

422

875

0.57

564

963

0.70

699

1040

0.84

831

1110

0.96

960

 

 

 

 

 

 

 

 

 

 

 

 

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

900

1016

0.51

505

1080

0.57

572

1139

0.64

637

1195

0.71

702

1249

0.77

765

1000

1041

0.59

587

1104

0.67

662

1163

0.74

737

1219

0.81

811

1272

0.89

883

1100

1066

0.68

674

1129

0.76

759

1188

0.85

843

1243

0.93

925

1296

1.01

1007

1200

1093

0.77

767

1155

0.87

861

1213

0.96

955

1268

1.05

1047

1321

1.14

1137

1300

1119

0.87

866

1181

0.98

970

1239

1.08

1073

1294

1.18

1175

1346

1.28

1275

1400

1147

0.98

972

1208

1.09

1086

1265

1.21

1199

1320

1.32

1310

1371

1.43

1419

1500

1175

1.09

1086

1235

1.22

1209

1292

1.34

1332

1346

1.46

1452

1397

1.58

1572

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.

Table 13 — Fan Performance 581B048 — Vertical 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

666

0.26

257

778

0.37

367

871

0.47

471

952

0.57

572

1025

0.67

670

1300

701

0.31

306

810

0.43

426

901

0.54

540

981

0.65

651

1053

0.76

760

1400

737

0.36

361

842

0.49

491

931

0.62

616

1010

0.74

738

1081

0.86

856

1500

773

0.42

422

875

0.57

564

963

0.70

699

1040

0.84

831

1110

0.96

960

1600

810

0.49

491

909

0.65

643

994

0.79

790

1070

0.94

932

1140

1.08

1070

1700

847

0.57

567

943

0.73

730

1027

0.89

888

1101

1.05

1040

1170

1.20

1189

1800

885

0.66

652

978

0.83

826

1060

1.00

994

1133

1.16

1157

1900

923

0.75

745

1014

0.94

930

1093

1.11

1109

2000

962

0.85

847

1049

1.05

1043

 

 

 

 

 

 

 

 

 

 

 

 

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

1093

0.77

767

1155

0.87

861

1213

0.96

955

1268

1.05

1047

1321

1.14

1137

1300

1119

0.87

866

1181

0.98

970

1239

1.08

1073

1294

1.18

1175

1400

1147

0.98

972

1208

1.09

1086

1500

1175

1.09

1086

1600

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.

25

Image 25
Contents Safety Considerations ContentsInstallation Provide Unit SupportIII. Determine Location of Drain Line and External Trap II. Field Fabricate DuctworkCRBTMPWR001A01 Roof Curb Unit Size Accessory CRRFCURB001A01CRBTMPWR002A01 CRBTMPWR003A01VI. Install GAS Piping Install Flue HoodIV. RIG and Place Unit Positioning581B 036 Unit Operating Weight048 060Physical Data 581B036-072 Furnace Section LOSS-OF-CHARGE SWITCH/LOW-PRESSUREFreeze Protection Thermostat OUTDOOR-AIR Inlet ScreensBase Unit Dimensions 581B036-072 Field Control Wiring Field Power SupplyHeat Anticipator Settings Steel Pipe Spacing of Supports Nominal Diameter DimensionLow-Voltage Connections With or Without Economizer Power Wiring ConnectionsFAN Motor Power Exhaust MCA MocpDisconnect SIZE† RLA LRA FLA MCA MocpFAN Motor Supply SIZE†Disconnect Switch VIII. Adjust FACTORY-INSTALLED OptionsPerfect Humidity Dehumidification System LPSManual Outdoor-Air Damper Damper Panel with Manual Outdoor-Air Damper InstalledOptional Manual Outdoor-Air Damper With Hood Attached EconoMi$er IV Standard Sensors Indoor Coil Access Panel RelocationBarometric Flow Capacity EconoMi$er IV Control Modes Supply Air Sensor Temperature/Resistance ValuesEconoMi$er IV Sensor Usage Return Air Temperature or Enthalpy Sensor Mounting Location Enthalpy Changeover Set Points Page 581B Fan Rpm at Motor Pulley Setting With Standard Motor IX. Adjust EVAPORATOR-FAN Speed581B Fan Rpm at Motor Pulley Setting With High-Static Motor Unit Maximum Unit Voltage Phase Continuous BHP581B AMP DrawOutdoor Sound Power Total Unit Accessory/FIOP EconoMi$er IV Static Pressure* in. wgEvaporator-Fan Motor Data High-Static Motors 1265 1294 1175 1346 1275 1400 1147 9721320 1310 1371 1419 1500 1175 1086 1292670 666 257 778 367 871 471 952 572701 306 810 426 901 540 981 651 7601803 16491470 1784 19671008 643 967 563805 1049 731782 316 870 417 948 Rpm Bhp Watts 900 553 1341000 582 163 807 358 894 466 971675 277 643 234 762707 326 740 382839 412 938 505 1030 605 800 350 904 438 999 535879 483 974 580 919 561753 800 350 904 438 999 535 1087 640839 412 938 505 1030 605 1115 714 829General FAN Performance Notes VII. Refrigerant Service Ports VI. Internal WiringPRE-START-UP START-UP Unit PreparationXI. Main Burners CoolingXII. Heating XV. Operating Sequence XIII. Safety ReliefThermostat Input Economizer Function 581B Unit Operation Perfect Humidity Normal Design Cooling OperationIV. ECONOMI$ER IV Adjustment Service CleaningVI. HIGH-PRESSURE Switch VII. LOSS-OF-CHARGE SwitchLow Charge Cooling To Use Cooling Charging Chart, Standard UnitPerfect Humidity System Charging Unit 581BCooling Charging Chart, Standard 581B036 Condenser FAN Must be Operating XV. Replacement Parts XII. Limit SwitchFlue GAS Passageways XI. COMBUSTION-AIR BlowerMedium High Heat Units LOW Heat UnitsOLR CAPCLO CompLED Error Code Service Analysis Troubleshooting Unit TroubleshootingSymptom Cause Remedy LED OFFProblem Cause Remedy Heating Service AnalysisProblem Cause Remedy Cooling Service AnalysisII. ECONOMI$ER IV Troubleshooting EconoMi$er IV Input/Output Logic EconoMi$er IV Troubleshooting CompletionInputs Outputs Demand Control EnthalpyIndex Page Temperatures START-UP ChecklistPreliminary 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.