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Bryant 581A/B manual Physical Data 581A210-300, 581A155-300, Unit 581A

Models: 581A/B

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PHYSICAL DATA — 581A210-300

UNIT 581A

 

210

240

300

NOMINAL CAPACITY (tons)

 

18

20

25

OPERATING WEIGHT (lb)

 

 

 

 

Al/Al

 

2224

2272

2526

COMPRESSOR

 

 

 

 

Quantity

 

3

3

2

Number of Refrigerant Circuits

 

3

3

2

Oil (ounces) Ckt A...Ckt B...Ckt C

 

68...68...90

90...90...90

110...110...NA

REFRIGERANT TYPE

 

 

 

 

Expansion Device

 

TXV

TXV

TXV

Operating Charge (lb)

 

 

 

 

Circuit A

 

13.1

13.8

21.8

Circuit B

 

12.7

13.9

20.3

Circuit C

 

15.2

15.5

NA

CONDENSER FAN

 

 

 

 

Nominal Cfm (Total, all fans)

 

14,000

14,000

21,000

Quantity...Diameter (in.)

 

4...22

4...22

6...22

Motor Hp...Rpm

 

1/4...1100

1/4...1100

1/4...1100

Watts Input (Total)

 

1400

1400

2100

CONDENSER COIL

 

 

 

 

Rows...Fins/in.

 

2...17

2...17

2...17

Total Face Area (sq ft)

 

57.78

57.78

66.67

EVAPORATOR FAN

 

 

 

 

Quantity...Size

 

2...15x11

2...15x11

2...15x11

Type Drive

 

Belt

Belt

Belt

Nominal Cfm

 

7000

8000

10,000

Motor Bearing Type

 

Ball

Ball

Ball

Maximum Allowable Fan Rpm

 

1400

1400

1400

EVAPORATOR COIL

 

 

 

 

Rows...Fins/in.

 

3...15

4...15

4...15

Total Face Area (sq ft)

 

23.33

23.33

27.22

FURNACE SECTION

 

 

 

 

Rollout Switch Cutout Temp (F)

 

225

225

225

Burner Orifice Diameter (in. ...drill size)

 

0.136...29

0.136...29

0.136...29

Gas

 

Natural

Natural

Natural

Thermostat Heat Anticipator Setting

 

 

 

 

Stage 1 (amps)

 

0.98

0.98

0.98

Stage 2 (amps)

 

0.44

0.44

0.44

Gas Input (Btuh) HIGH HEAT

Stage 1

317,000

317,000

317,000

 

Stage 2

400,000

400,000

400,000

Efficiency (Steady State) %

Vertical

82

82

82

Temperature Rise Range

 

25-55

25-55

25-55

Gas Input (Btuh) MEDIUM HEAT

Stage 1

281,000

281,000

281,000

 

Stage 2

365,000

365,000

365,000

Efficiency (Steady State) %

Vertical

81

81

81

Temperature Rise Range

 

25-55

25-55

25-55

Gas Input (Btuh) LOW HEAT

Stage 1

199,000

199,000

199,000

 

Stage 2

250,000

250,000

250,000

Efficiency (Steady State) %

Vertical

82

82

82

Temperature Rise Range (F)

 

15-45

15-45

15-45

Manifold Pressure

 

 

 

 

Natural Gas (in. wg)

Vertical

3.00

3.00

3.00

Natural Gas (in. wg)

Horizontal

2.95

2.95

2.95

Gas Valve Quantity

 

1

1

1

Gas Valve Pressure Range

(in. wg)

5.5-13.0

5.5-13.0

5.5-13.0

Min-Max Allowable

(psig)

.235-.469

.235-.469

.235-.469

Field Gas Connection Size (in. FPT)

 

3/4

3/4

3/4

HIGH-PRESSURE SWITCH (psig)

 

 

 

 

Cutout

 

426

426

426

Reset (Auto)

 

320

320

320

OUTDOOR-AIR INLET SCREENS

 

 

 

 

Quantity...Size (in.)

 

3...20x25

3...20x25

3...20x25

RETURN-AIR FILTERS

 

 

 

 

Quantity...Size (in.)

 

9...16x25

9...16x25

9...18x24

LEGEND

TXV — Thermostatic Expansion Valve

581A155-300

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Bryant 581A/B manual Physical Data 581A210-300, 581A155-300, Unit 581A
Page 197 Page 199

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.