Bryant 581B Evaporator-Fan Motor Data High-Static Motors, Outdoor Sound Power Total Unit

Page 24

Table 8 — Evaporator-Fan Motor Data — High-Static Motors

UNIT

UNIT

MAXIMUM

MAXIMUM

UNIT VOLTAGE

MAXIMUM

581B

PHASE

CONTINUOUS BHP*

OPERATING WATTS*

AMP DRAW

 

 

 

 

 

208/230

6.7

036

Three

2.40

2120

460

3.0

 

 

 

 

575

3.0

 

 

 

 

208/230

6.7

046

Three

2.40

2120

460

3.0

 

 

 

 

575

3.0

 

 

 

 

208/230

8.6

060

Three

2.90

2615

460

3.9

 

 

 

 

575

3.9

 

 

 

 

208/230

8.6

072

Three

2.90

2615

460

3.9

 

 

 

 

575

3.9

LEGEND

Bhp — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with con- fidence. Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

Table 9 — Accessory/FIOP EconoMi$er IV Static Pressure* (in. wg)

COMPONENT

 

 

 

 

CFM

 

 

 

1250

1500

1750

2000

 

2250

2500

2750

3000

 

 

Vertical EconoMi$er IV

0.045

0.065

0.08

0.12

 

0.145

0.175

0.22

0.255

Horizontal EconoMi$er IV

—

—

0.1

0.125

 

0.15

0.18

0.225

0.275

LEGEND

FIOP — Factory-Installed Option

*The static pressure must be added to external static pressure. The sum and the evaporator entering-air cfm should be used in conjunction with the Fan Performance tables to determine indoor blower rpm and watts.

Table 10 — Outdoor Sound Power (Total Unit)

UNIT

ARI RATING

 

 

 

 

OCTAVE BANDS

 

 

 

581B

(decibels)

 

63

125

250

500

1000

2000

4000

8000

036-048

76

 

55.9

66.0

64.0

66.2

68.4

64.5

61.7

57.3

060-072

80

 

59.1

68.9

68.7

71.9

74.0

68.9

65.7

59.0

 

LEGEND

 

 

 

 

 

 

 

 

ARI —

Air Conditioning and Refrigeration Institute

 

 

 

 

 

Table 11 — Fan Performance 581B036 — 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

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

—

—

—

1400

1147

0.98

972

1208

1.09

1086

—

—

—

—

—

—

—

—

—

1500

1175

1.09

1086

—

—

—

—

—

—

—

—

—

—

—

—

LEGEND

Bhp — Brake Horsepower

Watts — Input Watts to Motor

*Motor drive range: 680 to 1044 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.

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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$er IV Standard SensorsBarometric Flow Capacity Supply Air Sensor Temperature/Resistance Values EconoMi$er IV Control ModesEconoMi$er IV Sensor Usage Return Air Temperature or Enthalpy Sensor Mounting Location Enthalpy Changeover Set Points Page IX. Adjust EVAPORATOR-FAN Speed 581B Fan Rpm at Motor Pulley Setting With Standard Motor581B Fan Rpm at Motor Pulley Setting With High-Static Motor Phase Continuous BHP Unit Maximum Unit Voltage581B AMP DrawAccessory/FIOP EconoMi$er IV Static Pressure* in. wg Outdoor Sound Power Total UnitEvaporator-Fan Motor Data High-Static Motors 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 PreparationCooling XI. Main BurnersXII. Heating 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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