Bryant 581B manual Nominal Voltage Combustion Power Minimum Unit Compressor

Page 47

ELECTRICAL DATA (cont)

581B090-150 STANDARD MOTOR (Units Without Electrical Convenience Outlet)

 

NOMINAL

VOLTAGE

 

 

 

 

COMBUSTION

POWER

MINIMUM UNIT

UNIT

COMPRESSOR

OFM

IFM

SUPPLY

DISCONNECT

VOLTAGE

RANGE

FAN MOTOR

581B

 

 

 

 

WITH OUTLET

 

SIZE*

(V-Ph-Hz)

 

 

 

 

 

 

 

 

 

Min

Max

RLA

LRA

FLA

FLA

FLA

MCA

MOCP

FLA

 

LRA

 

 

 

 

208/230-3-60

187

254

12.4

88.0

1.4

7.5

.57

38.2/38.2

45/45†

40/40

 

242/242

090

460-3-60

414

508

6.4

44.0

0.7

3.4

.30

19.2

25†

20

 

121

 

575-3-60

518

632

4.8

34.0

0.7

3.4

.30

14.6

20†

16

 

95

 

208/230-3-60

187

254

15.0

99.0

1.4

7.5

.57

44.1/44.1

50/50†

46/46

 

264/264

102

460-3-60

414

508

8.2

49.5

0.7

3.4

.30

23.3

30†

24

 

132

 

575-3-60

518

632

5.8

40.0

0.7

3.4

.30

16.9

20†

18

 

107

 

208/230-3-60

187

254

18.9

125.0

1.4

10.6

.57

55.9/55.9

60/60†

59/59

 

341/341

120

460-3-60

414

508

9.0

62.5

0.7

4.8

.30

26.5

30†

28

 

171

 

575-3-60

518

632

7.1

50.0

0.7

4.8

.30

20.9

25†

22

 

136

 

208/230-3-60

187

254

19.0

156.0

1.4

15.0

.57

60.6/60.6

70/70

64/64

 

426/426

150

460-3-60

414

508

9.0

70.0

0.7

7.4

.30

29.1

35†

31

 

197

 

575-3-60

518

632

7.4

54.0

0.7

7.4

.30

23.7

30†

25

 

154

581B090-150 STANDARD MOTOR (Units With Electrical Convenience Outlet)

 

NOMINAL

VOLTAGE

 

 

 

 

COMBUSTION

POWER

MINIMUM UNIT

UNIT

COMPRESSOR

OFM

IFM

SUPPLY

DISCONNECT

VOLTAGE

RANGE

FAN MOTOR

581B

 

 

 

 

WITH OUTLET

 

SIZE*

(V-Ph-Hz)

 

 

 

 

 

 

 

 

 

Min

Max

RLA

LRA

FLA

FLA

FLA

MCA

MOCP

FLA

 

LRA

 

 

 

 

208/230-3-60

187

254

12.4

88.0

1.4

7.5

.57

44.2/44.2

50/50†

46/46

 

247/247

090

460-3-60

414

508

6.4

44.0

0.7

3.4

.30

21.9

25†

23

 

124

 

575-3-60

518

632

4.8

34.0

0.7

3.4

.30

16.8

20†

18

 

97

 

208/230-3-60

187

254

15.0

99.0

1.4

7.5

.57

50.1/50.1

60/60†

52/52

 

269/269

102

460-3-60

414

508

8.2

49.5

0.7

3.4

.30

26.0

30†

27

 

135

 

575-3-60

518

632

5.8

40.0

0.7

3.4

.30

19.1

25†

20

 

109

 

208/230-3-60

187

254

18.9

125.0

1.4

10.6

.57

61.9/61.9

70/70

64/64

 

345/345

120

460-3-60

414

508

9.0

62.5

0.7

4.8

.30

29.2

35†

30

 

173

 

575-3-60

518

632

7.1

50.0

0.7

4.8

.30

23.1

25†

24

 

139

 

208/230-3-60

187

254

19.0

156.0

1.4

15.0

.57

66.6/66.6

80/70

70/70

 

430/430

150

460-3-60

414

508

9.0

70.0

0.7

7.4

.30

31.8

35†

33

 

199

 

575-3-60

518

632

7.4

54.0

0.7

7.4

.30

25.9

30†

27

 

156

LEGEND

FLA — Full Load Amps

HACR — Heating, Air Conditioning and Refrigeration

IFM — Indoor (Evaporator) Fan Motor

LRA — Locked Rotor Amps

MCA — Minimum Circuit Amps

MOCP— Maximum Overcurrent Protection

NEC — National Electrical Code

OFM — Outdoor (Condenser) Fan Motor

RLA — Rated Load Amps

UL — Underwriters’ Laboratories

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker per NEC.

NOTES:

1. In compliance with NEC requirements for multimotor and combina-

tion load equipment (refer to NEC Articles 430 and 440), the overcur-

rent protective device for the unit shall be fuse or HACR breaker. The

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

452 + 464 + 455

Average Voltage =

3

1371

=

3

= 457

Determine maximum deviation from average voltage. (AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v (AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

UL, Canadian approved units may be fuse or circuit breaker.

2. Unbalanced 3-Phase Supply Voltage

% Voltage Imbalance = 100 x

7

Never operate a motor where a phase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the percent

of voltage imbalance.

% Voltage imbalance

= 100 x

max voltage deviation from average voltage

average voltage

 

457

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maxi- mum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

47

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Contents Unit 581B090-150 FEATURES/BENEFITSEasy Maintenance and Installation Unit 581B036-072FEATURES/BENEFITS Table of Contents Indoor AIR Quality IAQ ServiceabilityCompressors and Safety Switches are Easily Accessible for Model Number NomenclatureHeating Capacities and Efficiencies ARI* CapacitiesLiquid Propane Conversion KIT Options and AccessoriesLOW Ambient Controls Time Guard II ControlOptions and Accessories Bryant Light Commercial Thermidistat Hail Guard Accusensor II Enthalpy ControlCoil Guard Grille Bryant Commercial Programmable ThermostatHi-Static Physical Data120N††† Physical Data060N††† 090N†††090 102 120 150 Nominal Capacity tons LOSS-OF-CHARGE LOW-PRESSURE 581B036-072 Base Unit Dimensions581B090-150 Base Unit DimensionsAccessory Dimensions 581B036-072 CRRFCURB003A00 Accessory Dimensions 581B090-150Connector ALT Drain PKG. Accy GAS ControlDetermine NET Cooling Capacity Selection Procedure With 581B048 ExampleII Select Unit Based on Required Cooling Capacity Cooling Capacities Performance DataCooling Capacities Performance Data581B090 71/2 Tons 581B120 10 Tons Temp F Cooling CAPACITIES, Units with Perfect Humidity Option Cooling CAPACITIES, Units with Perfect Humidity Option 2250/0.10 3000/0.11 3750/0.14 Condenser 134.3 581B036 3 Tons HIGH-STATIC Motor Airflow FAN Performance Vertical Discharge Units581B036 3 Tons Standard Motor Airflow 581B048 4 Tons HIGH-STATIC Motor Airflow FAN Performance Vertical Discharge Units581B048 4 Tons Standard Motor Airflow 581B060 5 Tons HIGH-STATIC Motor 581B060 5 Tons Standard Motor SINGLE-PHASE Units Airflow581B060 5 Tons Standard Motor THREE-PHASE Units Airflow 581B072 6 Tons HIGH-STATIC Motor 581B072 6 Tons Standard Motor Airflow581B090 71/2 Tons HIGH-STATIC Motor Airflow 581B090 71/2 Tons Standard Motor581B102 81/2 Tons HIGH-STATIC Motor Airflow 581B120 10 Tons Standard and HIGH-STATIC Motor Airflow FAN Performance Horizontal Discharge Units FAN Performance Horizontal Discharge Units 581B060 5 Tons HIGH-STATIC Motor Airflow 581B060 5 Tons Standard Motor 3-PHASE Units Airflow2100 1063 1140 1196 1272 Bhp Rpm 1800 885 942 10471900 982 1084 1160 1223 2000 1022 1121 1188 1264581B090 71/2 Tons HIGH-STATIC Motor Airflow 2800 588 662 723 782 809 837 Bhp Rpm 2550 627 692 754 783 8122600 557 634 698 759 787 816 2700 573 648 711 770 798 8273400 561 704 761 3100 500 669 731 8083200 519 680 741 818 3300 537 692 751 828Fiop Perfect Humidity Dehumidification Outdoor Sound Power Total UnitEVAPORATOR-FAN Motor Efficiency EVAPORATOR-FAN Motor Data Standard Motor 581B FAN RPM AT Motor Pulley Setting with Standard Motor581B FAN RPM AT Motor Pulley Setting with HIGH-STATIC Motor Operating Watts EVAPORATOR-FAN Motor Data HIGH-STATIC MotorsEconoMi$er Return-Air Pressure Drop EconoMi$er Barometric Relief Damper CharacteristicsEconoMi$er Outdoor-Air Leakage 581B036-150 Altitude CompensationAltitude Derating Factor FAN Motor Electrical DataOFM SupplyRLA LRA FLA MCA MOCP† Electrical DataNominal Voltage Combustion Power Minimum Unit Compressor RLA LRA Applications Maximum Operating OUTDOOR-AIR TemperatureApplication Data Application Data Perfect Humidity Dehumidification Option Pressure Enthalpy Curve Psychrometric Chart 581B072 Shown Horizontal Discharge Typical Piping and WiringVertical Discharge Typical Wiring Schematic Typical Wiring Schematic Tran 581B090-150 Typical Wiring SchematicOFC Operating Sequence for 581B090-150 Units ControlsOperating Sequence for 581B036-072 Units Operating Sequence for 581B036-150 Size Units ControlsPart 2 Products Guide SpecificationsPart 1 General Guide Specifications Light Commercial Thermidistat Page Specifications Subject to Change Without Notice
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581B specifications

The Bryant 581B is an innovative and highly efficient gas furnace that stands out in the HVAC market for its remarkable performance, reliability, and advanced features. Designed to provide optimal heating comfort, the Bryant 581B is perfect for homeowners seeking both quality and energy efficiency.

One of the main features of the Bryant 581B is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 80%, this gas furnace maximizes energy usage, ensuring that a significant portion of the fuel is converted into heat for your home. This efficiency not only translates into lower energy bills but also reduces the carbon footprint, making it an environmentally friendly choice.

The furnace is equipped with a multi-speed blower motor that enhances comfort by providing consistent airflow throughout the home. This technology adjusts to different heating demands, ensuring that every room reaches the desired temperature without the discomfort of hot or cold spots. The quiet operation of the blower motor also adds to the overall comfort, creating a peaceful home environment.

Another notable characteristic of the Bryant 581B is its durable construction. It features a robust heat exchanger built from high-quality materials, designed to withstand the rigors of daily use. The compact design of the furnace allows it to fit seamlessly into various spaces, making it an ideal choice for both new installations and replacement projects.

The Bryant 581B also comes with advanced safety features, including a self-diagnostic control board that monitors the system's performance. This feature allows for easy troubleshooting and maintenance, prolonging the life of the furnace. Additionally, the furnace is equipped with an induced draft blower that enhances venting efficiency and safety by ensuring that combustion gases are safely expelled from the home.

For homeowners looking for enhanced control, the Bryant 581B is compatible with a range of smart thermostats, providing the ability to monitor and adjust heating settings remotely. This integration with smart technology ensures that homeowners can maintain their desired comfort levels while maximizing efficiency.

In conclusion, the Bryant 581B gas furnace is a top-tier option that combines efficiency, durability, and modern technology. With its high AFUE rating, multi-speed blower, and advanced safety features, it promises to deliver unparalleled comfort and peace of mind for years to come. Whether for a new build or an upgrade, the Bryant 581B is an investment that pays off in both comfort and savings.
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