PERFORMANCE DATA (cont)

ACCESSORY/FIOP STATIC PRESSURE (in. wg)* — 581A155,180

COMPONENT

 

 

 

 

CFM

 

 

 

 

4500

5000

5400

6000

7200

7500

9000

10,000

11,250

 

EconoMi$er IV

0.040

0.050

0.060

0.070

0.090

0.100

0.110

0.120

0.140

LEGEND

 

 

*The static pressure must be added to external static pressure. The sum and

FIOP — Factory-Installed Option

 

 

the evaporator entering-air cfm should then be used in conjunction with the

 

 

Fan Performance tables to determine blower rpm and watts.

 

 

 

 

 

 

 

INDOOR SOUND DATA (TOTAL UNIT) — 581A155,180

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SOUND

A-WEIGHTED

 

 

 

SOUND POWER (dB)

 

 

 

UNIT 581A

RATING-dB

 

 

 

Octave Bands

 

 

 

(dB)

 

 

 

 

 

 

 

(60 Hz)

 

 

 

 

 

 

 

 

 

 

 

63

125

250

500

 

1000

2000

4000

8000

 

 

 

 

155

87

87.3

87.1

89.9

86.4

84.0

 

82.7

79.0

73.9

68.6

180

88

88.0

95.7

88.9

87.2

85.2

 

91.9

79.5

72.7

66.0

EVAPORATOR FAN MOTOR PERFORMANCE — 581A155,180

 

UNIT 581A

NOMINAL HP

VOLTAGE

MAX WATTS

EFF. %

MAX BHP

MAX BkW

MAX AMPS

 

155

2.9

208

2700

85.8

3.13

2.34

9.46

 

2.9

230

2700

85.8

3.13

2.34

8.6

(Standard Motor)

2.9

460

2700

85.8

3.13

2.34

4.3

 

 

3

575

3065

81.7

3.38

2.53

3.9

 

155

3.7

208

3610

85.8

4.38

3.27

10.5

(Optional Motor)

3.7

230

3610

85.8

4.38

3.27

10.5

 

 

3.7

460

3610

85.8

4.38

3.27

4.8

 

 

5

208

5180

87.5

6.13

4.57

15.8

 

180

5

230

5180

87.5

6.13

4.57

15.8

 

 

5

460

5180

87.5

6.13

4.57

7.9

 

 

5

575

5180

87.5

6.13

4.57

6.0

 

LEGEND

 

 

 

 

 

 

 

BHP —

Brake Horsepower

 

 

 

 

 

 

 

BkW —

Brake Kilowatts

 

 

 

 

 

 

 

FAN RPM AT MOTOR PULLEY SETTINGS* — 581A155,180

UNIT

 

 

 

 

 

MOTOR PULLEY TURNS OPEN

 

 

 

 

 

581A

0

1/2

1

11/2

2

 

21/2

3

31/2

 

4

41/2

5

51/2

6

155†

1147

1124

1101

1078

1055

 

1032

1010

987

 

964

941

918

895

††

155**

1315

1292

1269

1246

1223

 

1200

1178

1155

 

1132

1109

1086

1063

1040

180†

††

††

††

††

1021

 

1002

984

965

 

947

928

910

891

873

180**

††

††

††

††

1200

 

1178

1156

1134

 

1112

1091

1069

1047

1025

*Approximate fan rpm shown. †Indicates standard drive package. **Indicates alternate drive package.

††Due to belt and pulley style, pulley cannot be set to this number of turns open.

581A155-300

241

Page 241
Image 241
Bryant 581A/B manual ACCESSORY/FIOP Static Pressure in. wg* 581A155,180, Indoor Sound Data Total Unit 581A155,180

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.