Bryant 551B 489 386, 506 629 625 688 745, 866, 502 424, 548 640 672 697 797, 923, 515 465, 1044

Page 26

Table 17 — Fan Performance 551B102 — 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

2500

489

0.41

386

564

0.54

506

629

0.67

625

688

0.80

745

741

0.93

866

2600

502

0.45

424

576

0.59

548

640

0.72

672

697

0.85

797

750

0.99

923

2700

515

0.50

465

587

0.64

594

650

0.77

723

707

0.91

852

760

1.05

982

2800

529

0.55

508

599

0.69

642

661

0.83

776

718

0.98

910

769

1.12

1044

2900

542

0.59

555

611

0.74

693

672

0.89

832

728

1.04

970

779

1.19

1109

3000

556

0.65

604

623

0.80

748

684

0.95

891

738

1.11

1034

789

1.26

1177

3100

569

0.70

656

636

0.86

805

695

1.02

953

749

1.18

1100

799

1.34

1249

3200

583

0.76

712

648

0.93

865

707

1.09

1018

760

1.26

1170

809

1.42

1323

3300

597

0.83

770

661

1.00

929

718

1.17

1086

771

1.33

1244

820

1.50

1401

3400

611

0.89

832

674

1.07

996

730

1.24

1158

782

1.42

1320

831

1.59

1483

3500

625

0.96

898

687

1.14

1066

742

1.32

1233

794

1.50

1400

841

1.68

1567

3600

639

1.04

967

700

1.22

1140

754

1.41

1312

805

1.59

1484

852

1.78

1656

3700

654

1.11

1040

713

1.31

1218

767

1.50

1395

817

1.69

1571

863

1.87

1748

3800

668

1.20

1116

726

1.39

1299

779

1.59

1481

828

1.78

1662

874

1.98

1844

3900

683

1.28

1197

739

1.48

1385

792

1.69

1572

840

1.88

1758

886

2.08

1943

4000

697

1.37

1281

753

1.58

1474

804

1.79

1666

852

1.99

1857

897

2.20

2048

4100

712

1.47

1370

766

1.68

1567

817

1.89

1764

864

2.10

1960

909

2.31

2155

4200

726

1.57

1462

780

1.79

1665

830

2.00

1866

876

2.22

2067

920

2.43

2268

4300

741

1.67

1559

794

1.89

1767

843

2.12

1973

889

2.34

2179

932

2.56

2384

 

 

 

 

 

 

 

 

 

 

 

 

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

2500

791

1.06

988

837

1.19

1112

881

1.33

1236

922

1.46

1362

962

1.60

1490

2600

799

1.12

1049

845

1.26

1177

889

1.40

1306

930

1.54

1436

969

1.68

1568

2700

808

1.19

1113

854

1.34

1245

897

1.48

1378

938

1.62

1513

977

1.77

1648

2800

817

1.26

1179

863

1.41

1316

905

1.56

1454

946

1.71

1592

985

1.86

1732

2900

827

1.34

1249

872

1.49

1390

914

1.64

1532

954

1.80

1675

993

1.95

1819

3000

836

1.42

1322

881

1.57

1467

923

1.73

1613

963

1.89

1761

1001

2.05

1909

3100

846

1.50

1398

890

1.66

1547

932

1.82

1698

972

1.98

1849

1010

2.15

2002

3200

856

1.58

1477

899

1.75

1631

941

1.92

1786

980

2.08

1942

1018

2.25

2099

3300

866

1.67

1559

909

1.84

1718

950

2.01

1878

989

2.19

2038

1027

2.36

2199

3400

876

1.76

1645

919

1.94

1808

960

2.12

1972

998

2.29

2137

1036

2.47

2303

3500

886

1.86

1734

929

2.04

1902

969

2.22

2071

1008

2.40

2240

1045

2.58

2410

3600

897

1.96

1827

939

2.14

2000

979

2.33

2173

1017

2.52

2347

1054

2.70

2521

3700

907

2.06

1924

949

2.25

2101

989

2.44

2279

1027

2.63

2457

1063

2.83

2636

3800

918

2.17

2025

959

2.37

2207

999

2.56

2389

1036

2.76

2571

3900

929

2.28

2130

970

2.48

2316

1009

2.68

2502

1046

2.88

2690

4000

940

2.40

2238

980

2.61

2429

1019

2.81

2620

4100

951

2.52

2351

991

2.73

2547

4200

962

2.65

2468

1002

2.86

2668

4300

973

2.78

2589

LEGEND

Bhp — Brake Horsepower Input to Fan Watts — Input Watts to Motor

*Motor drive range: 840 to 1085 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 23 for general fan performance notes.

26

Image 26
Contents Installation ContentsSafety Considerations Provide Unit SupportPositioning III. Install Condensate Drain Line and External TrapIV. RIG and Place Unit Roof Curb Details Weight OperatingBase Unit Dimensions Physical Data Unit 551BIFC Field Power SupplyMake Electrical Connections NECElectrical Data FLA MCA Mocp LRA HacrVoltage Comp no Electric Heater Electric Heater Usage †Used to determine minimum disconnect per NECVI. Adjust FACTORY-INSTALLED Options A. Disconnect Switch Field Control WiringHeat Anticipator Settings Perfect Humidity Dehumidification SystemAccessory Field-Installed Humidistat Optional EconoMi$er Convenience OutletManual Outdoor-Air Damper EconoMi$er IV Standard Sensors Hood Box RemovalOutdoor-Air Hood Construction EconoMi$er IV Control Modes EconoMi$er IV Sensor UsageEconoMi$er IV Controller Potentiometer LED Locations Enthalpy Changeover Set Points Page CO2 Sensor Standard Settings PpmMinimum Required Airflow Exceptions VII. Adjust EVAPORATOR-FAN SpeedUnit Heater Required Config UrationEvaporator-Fan Motor Data Standard Motor Fan Rpm at Motor Pulley Setting* Standard Motor/DriveFan Rpm at Motor Pulley Setting* High-Static Motor/Drive Evaporator-Fan Motor Data High-Static Motors Accessory/FIOP EconoMi$er IV Static Pressure* in. wgAccessory/FIOP Electric Heaters Static Pressure in. wg General FAN Performance NotesAirflow 901 703 1125 762 1365 832 690 1051 750 1285866 697 1088 756 1324 974 716 1204 774 1449866 489 386506 629 625 688 745 502 4241748 15671656 1844865 707 748 684 891 738 1034 789 1177805 695 953 749 1100 799 1249 760 1170 809 13231665 865 707 1018 760 1170 809 1323929 718 1086 771 1244 820 1401 1873683 1197 739 654 1040 713668 1116 726 697 1281 7531252 465 402596 629 802 694 1021 471 421944 695 1194 756 1453 823 674 1059 737 1306882 684 1125 746 1378 1009 705 1266 766 1533868 462 348467 614 594 681 728 474 3812293 996 2501 1038 2713 27162821 2930723 1577 710 14821677 808 1876 855 2081 1775 820 19781677 808 1876 1492 784 16831582 796 1777 1877628 997 685 614 929 673781 1445 791 1525PRE-START-UP Internal WiringVI. Refrigerant Service Ports START-UP Unit PreparationIX. Cooling Heating if Accessory Heater is InstalledXI. Safety Relief XII. Ventilation Continuous FANPerfect Humidity System Normal Design Cooling Operation Evaporator Coil Units With Power ExhaustService Cleaning Condenser CoilsECONOMI$ER IV Adjustment III. CONDENSER-FAN Adjustment FIGIV. BELT/PULLEY Adjustment II. LubricationCooling Charging Charts, Standard 551B090 Unit Cooling Charging Charts, Standard 551B120 Unit VII. Replacement Parts Problem Cause Remedy Troubleshooting Unit TroubleshootingCooling Troubleshooting Will Not Energize Subcooling Mode Liquid ReheatReheat Mode Will Not Energize Low System CapacityII. ECONOMI$ER IV Troubleshooting Inputs Outputs EconoMi$er IV Troubleshooting CompletionEconoMi$er IV Input/Output Logic Demand Control EnthalpyOperating sequence Cooling EconoMi$er Heating IndexPage Preliminary Information START-UP ChecklistTemperatures III. START-UP Electrical
Related manuals
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551B specifications

The Bryant 551B and 551C are two highly efficient air conditioning units designed to provide optimal comfort in residential settings. Known for their reliability and performance, these models are part of Bryant's esteemed line of heating and cooling solutions.

One of the standout features of the Bryant 551B is its two-stage cooling system, which allows for better humidity control and increased comfort. This ensures that homeowners can enjoy consistent temperatures while reducing energy consumption. The unit operates quietly, thanks to its noise-reducing technology, making it an ideal choice for bedrooms and living spaces.

On the other hand, the Bryant 551C builds upon this foundation with its variable-speed compressor. This technology allows the unit to adjust its cooling output according to the specific needs of the home. This results in seamless operation and even greater energy efficiency. Both models also incorporate Bryant's advanced control capabilities, which allow users to monitor and adjust settings remotely via smart devices, adding a layer of convenience and modernity to home climate control.

With an emphasis on durability, both the 551B and 551C feature a galvanized steel cabinet that protects against weather-related damage. The powder coat finish further enhances their resistance to rust and corrosion, ensuring a long lifespan and minimal maintenance.

Another significant characteristic of these units is their excellent Seasonal Energy Efficiency Ratio (SEER) ratings. The 551B boasts a SEER rating of up to 16, while the 551C takes it even further with ratings exceeding 20. This efficiency not only translates to lower energy bills for homeowners but also contributes to a reduced carbon footprint, making these units environmentally friendly options.

Both models are also designed to operate with eco-friendly refrigerants, aligning with modern energy standards and regulations aimed at reducing greenhouse gas emissions.

In summary, the Bryant 551B and 551C are exemplary choices for homeowners looking for reliable, efficient, and high-performing air conditioning solutions. With features such as two-stage and variable-speed compressors, advanced smart technology, and robust construction, these models stand out in the competitive HVAC market. They promise a comfortable indoor environment along with significant energy savings, making them a wise investment for the future.