PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

581A180 (15 TONS) (Low Heat Units)*

Airflow

 

 

 

 

 

Available External Static Pressure (in. wg)

 

 

 

 

 

 

0.2

 

 

0.4

 

 

0.6

 

 

0.8

 

 

1.0

 

(Cfm)

 

 

 

 

 

 

 

 

 

 

 

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

4500

753

1307

1.53

761

1330

1.56

840

1572

1.84

912

1822

2.14

980

2080

2.44

4800

747

1384

1.62

790

1515

1.78

866

1765

2.07

936

2023

2.37

1002

2289

2.68

5100

741

1465

1.72

820

1718

2.01

893

1977

2.32

961

2243

2.63

1025

2516

2.95

5700

810

1911

2.24

882

2182

2.56

950

2459

2.88

1014

2741

3.21

1075

3029

3.55

6000

844

2164

2.54

914

2444

2.87

980

2730

3.20

1042

3021

3.54

1100

3317

3.89

6300

879

2439

2.86

947

2729

3.20

1010

3023

3.55

1070

3322

3.90

1127

3626

4.25

6600

915

2737

3.21

980

3035

3.56

1041

3338

3.91

1099

3645

4.28

1155

3957

4.64

6900

950

3057

3.59

1013

3364

3.95

1072

3675

4.31

1129

3991

4.68

1183

4311

5.06

7200

986

3401

3.99

1047

3717

4.36

1104

4037

4.74

1159

4361

5.11

1211

4689

5.50

7500

1022

3770

4.42

1081

4095

4.80

1136

4423

5.19

1189

4755

5.58

1241

5091

5.97

 

 

 

 

 

 

 

 

 

 

 

 

581A180 (15 TONS) (Low Heat Units)* (cont)

 

 

 

 

 

 

 

 

 

 

 

Airflow

 

 

 

 

 

Available External Static Pressure (in. wg)

 

 

 

 

 

 

1.2

 

 

1.4

 

 

1.6

 

 

1.8

 

 

2.0

 

(Cfm)

 

 

 

 

 

 

 

 

 

 

 

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

4500

1044

2345

2.75

1105

2619

3.07

1163

2899

3.40

1218

3187

3.74

1271

3481

4.08

4800

1065

2561

3.00

1124

2841

3.33

1180

3127

3.67

1235

3420

4.01

1287

3720

4.36

5100

1086

2795

3.28

1144

3082

3.61

1199

3375

3.96

1252

3674

4.31

1304

3979

4.67

5700

1132

3324

3.90

1187

3624

4.25

1240

3929

4.61

1291

4241

4.97

1341

4558

5.35

6000

1157

3619

4.24

1210

3925

4.60

1262

4239

4.97

1312

4557

5.34

1361

4880

5.72

6300

1182

3935

4.62

1234

4249

4.98

1285

4569

5.36

1334

4894

5.74

—

—

—

6600

1208

4274

5.01

1259

4595

5.39

1309

4922

5.77

—

—

—

—

—

—

6900

1235

4636

5.44

1285

4964

5.82

—

—

—

—

—

—

—

—

—

7200

1262

5021

5.89

—

—

—

—

—

—

—

—

—

—

—

—

7500

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

 

 

 

 

 

 

 

 

 

 

 

 

581A180 (15 TONS) (Low Heat Units)* (cont)

 

 

 

 

 

 

 

 

 

 

 

Airflow

 

 

 

 

 

Available External Static Pressure (in. wg)

 

 

 

 

 

 

2.2

 

 

2.4

 

 

2.6

 

 

2.8

 

 

3.0

 

(Cfm)

 

 

 

 

 

 

 

 

 

 

 

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

4500

1322

3781

4.43

1372

4088

4.79

1419

4400

5.16

1466

4719

5.53

1511

5042

5.91

4800

1337

4025

4.72

1386

4337

5.09

1433

4655

5.46

1479

4978

5.84

—

—

—

5100

1353

4290

5.03

1401

4607

5.40

1448

4930

5.78

—

—

—

—

—

—

5700

1388

4881

5.72

—

—

—

—

—

—

—

—

—

—

—

—

6000

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

6300

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

6600

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

6900

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

7200

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

7500

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

LEGEND

Bhp — Brake Horsepower

FIOP — Factory-Installed Option

Watts — Input Watts to Motor

*Standard low-medium static drive range is 873 to 1021 rpm. Alternate high-static drive range is 1025 to 1200. Other rpms require a field- supplied drive.

Refer to page 230 for general Fan Performance Data notes.

NOTES:

1.Maximum continuous bhp for the standard motor is 6.13. The max- imum continuous watts is 5180. Do not adjust motor rpm such that motor maximum bhp and/or watts is exceeded at the maximum operating cfm. See Evaporator Fan Motor Data tables for more information.

2.Fan performance is identical for horizontal discharge applications using Bryant horizontal adapter curb.

581A155-300

220

Page 219 Page 221
Page 220
Image 220
Bryant 581A/B manual 581A180 15 Tons Low Heat Units Airflow, Available External Static Pressure in. wg Cfm
Page 219 Page 221

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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