PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

580F090,091 (71/2 TONS) — ALTERNATE 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

2250

513

0.54

505

595

0.76

713

665

1.01

940

728

1.27

1187

786

1.56

1453

2300

521

0.57

531

601

0.79

741

671

1.04

972

734

1.31

1222

791

1.60

1489

2400

535

0.63

584

615

0.86

802

684

1.11

1038

745

1.39

1293

802

1.68

1566

2500

551

0.69

642

628

0.93

866

696

1.19

1109

757

1.47

1369

813

1.77

1647

2550

558

0.72

673

635

0.97

900

702

1.23

1146

763

1.51

1409

818

1.81

1689

2600

566

0.76

705

642

1.00

935

709

1.27

1183

769

1.55

1450

824

1.86

1732

2700

582

0.83

771

656

1.08

1008

721

1.35

1263

781

1.65

1535

835

1.95

1823

2800

597

0.90

842

670

1.16

1086

734

1.44

1347

793

1.74

1625

847

2.06

1917

2900

613

0.98

918

684

1.25

1169

748

1.54

1436

805

1.84

1720

859

2.16

2019

3000

629

1.07

999

699

1.35

1256

761

1.64

1530

818

1.95

1820

871

2.28

2125

3100

645

1.16

1085

713

1.45

1349

775

1.75

1630

831

2.06

1925

883

2.40

2235

3200

662

1.26

1176

728

1.55

1448

788

1.86

1734

844

2.18

2036

—

—

—

3300

678

1.36

1272

743

1.66

1551

802

1.98

1845

857

2.31

2152

—

—

—

3400

694

1.47

1374

758

1.78

1660

816

2.10

1961

—

—

—

—

—

—

3500

711

1.59

1482

773

1.90

1775

831

2.23

2082

—

—

—

—

—

—

3600

727

1.71

1596

789

2.03

1896

845

2.37

2210

—

—

—

—

—

—

3700

744

1.84

1716

804

2.17

2023

—

—

—

—

—

—

—

—

—

3750

752

1.91

1778

812

2.24

2089

—

—

—

—

—

—

—

—

—

 

 

 

 

 

 

 

 

 

580F090,091 (71/2 TONS) — ALTERNATE MOTOR (BELT DRIVE)* (cont)

 

 

 

 

 

 

 

 

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

2250

839

1.86

1735

889

2.18

2032

—

—

—

—

—

—

—

—

—

2300

844

1.90

1773

893

2.22

2073

—

—

—

—

—

—

—

—

—

2400

854

1.99

1855

903

2.32

2159

—

—

—

—

—

—

—

—

—

2500

865

2.08

1940

—

—

—

—

—

—

—

—

—

—

—

—

2550

870

2.13

1985

—

—

—

—

—

—

—

—

—

—

—

—

2600

875

2.18

2031

—

—

—

—

—

—

—

—

—

—

—

—

2700

886

2.28

2126

—

—

—

—

—

—

—

—

—

—

—

—

2800

897

2.39

2227

—

—

—

—

—

—

—

—

—

—

—

—

2900

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3000

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3100

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3200

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3300

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3400

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3500

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3600

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3700

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

3750

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

LEGEND

NOTES:

Bhp — Brake Horsepower Input to Fan

1.

Boldface indicates field-supplied drive is required.

2.

Maximum continuous bhp is 2.40.

Watts — Input Watts to Motor

3.

See page 70 for General Fan Performance Notes.

 

*Motor drive range: 685 to 935 rpm. All other rpms require field-supplied drive.

580F036-151

43

Page 42 Page 44
Page 43
Image 43
Bryant 581A/B manual 580F090,091 71/2 Tons Alternate Motor Belt Drive
Page 42 Page 44

581A/B specifications

The Bryant 581A/B is a sophisticated rooftop unit designed for commercial heating and cooling applications, striking a balance between performance, efficiency, and versatility. This unit is engineered to cater to various building sizes and configurations, making it an excellent choice for businesses seeking reliable climate control solutions.

One of the standout features of the Bryant 581A/B is its high efficiency. With SEER ratings reaching up to 14.5, this unit can significantly reduce energy costs while providing optimal performance throughout its operational lifespan. The design incorporates advanced compressor technology, allowing for variable speed operation that not only enhances comfort but also promotes energy savings by adjusting to the real-time demands of the environment.

The Bryant 581A/B also integrates cutting-edge refrigerant technology. Utilizing Puron refrigerant, it adheres to current environmental standards, minimizing its impact on ozone depletion while maximizing cooling performance. This commitment to sustainability is complemented by energy-efficient components, including high-efficiency coils and fan motors, which further optimize energy consumption.

In terms of construction, the Bryant 581A/B is built to withstand the rigors of outdoor installation. The unit features a rugged cabinet design with durable, corrosion-resistant materials, ensuring long-term reliability even in challenging weather conditions. Additionally, the easily accessible components simplify maintenance, reducing downtime for businesses.

The functionality of the Bryant 581A/B extends beyond mere cooling and heating. It is equipped with advanced control systems that can be interfaced with building management systems, allowing for seamless integration and enhanced control over indoor climate. This technology provides operators with the ability to monitor and adjust settings remotely, ensuring a comfortable indoor environment while optimizing energy use.

Noise reduction is another important characteristic of the Bryant 581A/B. The unit is designed with sound-dampening features, making it suitable for applications where low noise levels are a priority, such as retail spaces or office buildings.

Overall, the Bryant 581A/B is a robust solution for businesses seeking efficient, reliable, and flexible climate control. Its combination of advanced technology, durable construction, and user-friendly features make it a leading choice in the commercial HVAC market.
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