PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

581A300 (25 TONS) (Medium Heat Units)*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

6,500

799

2,730

3.14

833

2,914

3.35

872

3,135

3.61

914

3,392

3.90

958

3,687

4.24

7,000

856

3,294

3.79

887

3,481

4.00

921

3,699

4.25

958

3,950

4.54

999

4,235

4.87

7,500

913

3,929

4.52

941

4,118

4.74

972

4,335

4.99

1006

4,582

5.27

1042

4,860

5.59

8,000

971

4,637

5.33

996

4,829

5.55

1024

5,046

5.80

1055

5,290

6.08

1088

5,562

6.40

8,500

1029

5,421

6.24

1052

5,617

6.46

1078

5,835

6.71

1106

6,077

6.99

1136

6,345

7.30

9,000

1087

6,285

7.23

1108

6,484

7.46

1132

6,703

7.71

1158

6,946

7.99

1185

7,211

8.29

9,500

1145

7,231

8.32

1165

7,433

8.55

1187

7,655

8.80

1211

7,898

9.08

1236

8,161

9.39

10,000

1203

8,262

9.50

1222

8,468

9.74

1243

8,693

10.00

1265

8,936

10.28

1288

9,199

10.58

10,500

1261

9,381

10.79

1279

9,592

11.03

1299

9,820

11.29

1319

10,065

11.58

1341

10,327

11.88

11,000

1320

10,592

12.18

1337

10,807

12.43

1355

11,038

12.70

1374

11,284

12.98

1394

11,547

13.28

11,500

1378

11,896

13.68

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

12,000

—

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

12,500

—

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

581A300 (25 TONS) (Medium Heat Units)* (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

6,500

1005

4,020

 

4.62

 

1052

 

4,390

 

5.05

 

1100

 

4,791

 

5.51

 

1148

 

5,221

 

6.00

 

1195

 

5673

6.52

7,000

1041

4,555

 

5.24

 

1084

 

4,908

 

5.64

 

1128

 

5,294

 

6.09

 

1172

 

5,710

 

6.57

 

1217

 

6153

7.08

7,500

1080

5,168

 

5.94

 

1119

 

5,508

 

6.33

 

1160

 

5,878

 

6.76

 

1201

 

6,279

 

7.22

 

1242

 

6708

7.71

8,000

1122

5,862

 

6.74

 

1158

 

6,190

 

7.12

 

1195

 

6,548

 

7.53

 

1233

 

6,934

 

7.97

 

1272

 

7347

8.45

8,500

1167

6,638

 

7.63

 

1200

 

6,959

 

8.00

 

1234

 

7,305

 

8.40

 

1269

 

7,677

 

8.83

 

1304

 

8076

9.29

9,000

1214

7,499

 

8.63

 

1244

 

7,813

 

8.99

 

1275

 

8,149

 

9.37

 

1308

 

8,511

 

9.79

 

1340

 

8896

10.23

9,500

1262

8,447

 

9.72

 

1290

 

8,754

 

10.07

 

1319

 

9,084

 

10.45

 

1349

 

9,437

 

10.85

 

1379

 

9812

11.28

10,000

1312

9,482

 

10.91

 

1338

 

9,785

 

11.25

 

1365

 

10,110

 

11.63

 

1392

 

10,454

 

12.02

 

—

 

—

—

10,500

1363

10,608

 

12.20

 

1387

 

10,909

 

12.55

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

11,000

—

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

11,500

—

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

12,000

—

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

12,500

—

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

 

—

—

LEGEND

Refer to page 230 for general Fan Performance Data notes.

Bhp — Brake Horsepower Input to Fan

NOTE: Maximum continuous bhp is:

Watts — Input Watts to Motor

Low Range: 5.75

*Motor drive ranges:

High Range: 8.63

 

Low Range: 805-1007

 

High Range: 941-1176

 

All other rpms require field-supplied drive.

 

581A155-300

238

Page 237 Page 239
Page 238
Image 238
Bryant 581A/B manual 581A300 25 Tons Medium Heat Units
Page 237 Page 239

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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