Bryant 581A operation manual 753 942 844 1101 949

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Table 8 — Fan Performance — 581A155300 (High Heat Units with Optional Indoor Fan Motor)

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

CFM

 

0.2

 

 

0.4

 

 

0.6

 

 

0.8

 

 

1.0

 

 

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

Watts

Bhp

3750

753

942

1.08

844

1101

1.27

949

1306

1.50

1047

1520

1.75

1139

1741

2.00

4000

764

1035

1.19

872

1236

1.42

972

1444

1.66

1067

1661

1.91

1156

1885

2.17

4250

798

1177

1.35

901

1382

1.59

997

1594

1.83

1089

1814

2.09

1175

2041

2.35

4500

832

1331

1.53

931

1540

1.77

1024

1757

2.02

1112

1980

2.28

1195

2209

2.54

4750

868

1498

1.72

962

1711

1.97

1051

1932

2.22

1136

2158

2.48

1217

2390

2.75

5000

903

1677

1.93

994

1896

2.18

1079

2120

2.44

1161

2350

2.70

1240

2585

2.97

5250

939

1871

2.15

1026

2093

2.41

1109

2321

2.67

1188

2554

2.94

1264

2793

3.21

5500

976

2077

2.39

1059

2304

2.65

1139

2536

2.92

1215

2773

3.19

1289

3015

3.47

5750

1012

2298

2.64

1093

2529

2.91

1170

2765

3.18

1244

3005

3.46

1315

3250

3.74

6000

1049

2533

2.91

1127

2768

3.18

1201

3008

3.46

1273

3252

3.74

1342

3500

4.03

 

 

 

 

 

AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)

 

 

 

 

 

 

CFM

 

1.2

 

 

1.4

 

 

 

1.6

 

 

1.8

 

 

 

2.0

 

 

 

Rpm

Watts

Bhp

Rpm

Watts

Bhp

Rpm

 

Watts

Bhp

Rpm

Watts

 

Bhp

Rpm

Watts

 

Bhp

3750

1227

1970

2.27

1310

2206

2.54

1390

 

2448

2.82

1467

2696

 

3.10

1541

2951

 

3.39

4000

1241

2116

2.43

1323

2353

2.71

1400

 

2597

2.99

1475

2847

 

3.27

1548

3102

 

3.57

4250

1258

2274

2.62

1337

2513

2.89

1413

 

2759

3.17

1486

3010

 

3.46

 

4500

1275

2445

2.81

1352

2687

3.09

1426

 

2934

3.37

1498

3187

 

3.67

 

4750

1295

2629

3.02

1369

2873

3.30

1442

 

3122

3.59

1511

3377

 

3.88

 

5000

1315

2826

3.25

1388

3073

3.53

1458

 

3324

3.82

1527

3581

 

4.12

 

5250

1337

3037

3.49

1408

3286

3.78

1477

 

3540

4.07

 

 

5500

1360

3262

3.75

1429

3513

4.04

1496

 

3769

4.34

 

 

5750

1384

3500

4.03

1452

3755

4.32

 

 

 

6000

1410

3753

4.32

 

 

 

 

 

LEGEND

Bhp

Brake Horsepower

FIOP

Factory-Installed Option

Watts —

Input Watts to Motor

*Standard low-medium static drive range is 834 to 1064 rpm. Alternate high-static drive range is 1161 to 1426. Other rpms require a field- supplied drive.

NOTES:

1.Maximum continuous bhp for the optional motor is 4.38. The maxi- mum continuous watts is 3775. Do not adjust motor rpm such that motor maximum bhp and/or watts is exceeded at the maximum operating cfm.

2.Static pressure losses (i.e., economizer) must be added to external static pressure before entering Fan Performance table.

3.Interpolation is permissible. Do not extrapolate.

4.Fan performance is based on wet coils, clean filters, and casing losses. See Table 13 for accessory/FIOP static pressure information.

5.Extensive motor and drive testing on these units ensures that the full bhp and watts range of the motor can be utilized with confidence. Using your fan motors up to the watts or bhp rating shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

6.Use of a field-supplied motor may affect wiring size. Contact your Bryant representative for details.

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Contents Installation Provide Unit Support ContentsSafety Considerations Roof Curb Details Alternate Unit Support II. RIG and Place UnitPositioning Roof MountBase Unit Dimensions 581A155 Base Unit Dimensions 581A240 Physical Data Unit 581AInstall Flue Hood and Wind Baffle III. Field Fabricate DuctworkIV. Make Unit Duct Connections 581A180, 240 Unit ShownVII. Install GAS Piping Field Power SupplyVI. Trap Condensate Drain VIII. Make Electrical ConnectionsField Control Wiring Make OUTDOOR-AIR Inlet AdjustmentsManual Outdoor-Air Damper Optional EconomizerElectrical Data FLA LRA MCA MocpInstall OUTDOOR-AIR Hood 25% Outdoor-Air Section DetailsEnthalpy Control Installation Seal Strip LocationXI. Install ALL Accessories Motormaster I Control Installation 581A155 and 180 OnlyII. Service Valves IV. Refrigerant Service PortsSTART-UP Unit PreparationVI. Internal Wiring XII. Accessory Economizer AdjustmentVII. Crankcase Heaters VIII. Evaporator FANBhp Brake Horsepower Fan Performance 581A180270 Low Heat Units Fan Performance 581A240270 Low Heat Units 753 915 844 1077 949 1287 1047 753 942 844 1101 949 Fan Performance 581A180360 High Heat Units Fan Performance 581A240360 High Heat Units Evaporator Fan Motor Specifications Accessory/FIOP Economizer Static Pressure in. wgFan RPM at Motor Pulley Setting Air Quantity LimitsXIII. GAS Heat XIV. Base Unit OperationService Cleaning IV. Evaporator FAN Service and Replacement II. LubricationBelt Tension Adjustment VI. CONDENSER-FAN Adjustment581A155 and 180 Units Fig 581A240 Units FigIX. Refrigerant Charge VII. Economizer AdjustmentVIII. Power Failure GAS Valve Adjustment XI. Main BurnersXII. Filter Drier XIII. Protective DevicesXVI. Replacement Parts XVII. Diagnostic LedsXIV. Relief Devices XV. Control CircuitSpark Gap Adjustment Typical Wiring Schematic and Typical Component Arrangement Typical Wiring Schematic 581A180, 208/230 V Unit Shown Typical Component Arrangement 581A180 Shown Problem Cause Remedy TroubleshootingCooling Service Analysis Heating Service Analysis Burners will not igniteIGC Control Heating and Cooling Packaged Service Training Call for Free CatalogPage Temperatures ElectricalPressures General
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581A specifications

The Bryant 581A is a pivotal model in the realm of heating, ventilation, and air conditioning (HVAC) systems, known for its robust performance and energy efficiency. As part of the Bryant product lineup, the 581A offers a blend of innovative technologies combined with reliable engineering, making it a suitable choice for both residential and light commercial applications.

One of the standout features of the Bryant 581A is its outstanding energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating of up to 16, this model meets Energy Star qualifications, ensuring that homeowners can enjoy lower utility bills while helping to reduce their environmental footprint. The efficiency is further enhanced by the unit’s environmentally friendly refrigerant, which not only improves performance but also aligns with modern sustainability standards.

Another key characteristic of the Bryant 581A is its durable construction. Designed to withstand various weather conditions, the unit features a robust cabinet that protects internal components. This durability not only prolongs the lifespan of the system but also minimizes the need for frequent maintenance or repairs. The coil design is optimized for heat transfer efficiency, enhancing the unit's overall performance in both cooling and heating modes.

In terms of technology, the Bryant 581A incorporates advanced control systems that enable precise temperature regulation. The multi-stage cooling capabilities ensure that the system can adapt to varying temperature demands, providing comfort in all seasons. Additionally, the model is compatible with smart thermostats, allowing homeowners to control their HVAC system remotely via smartphone or other connected devices.

Noise reduction is another aspect where the Bryant 581A excels. Equipped with a variable-speed compressor and sound-dampening features, this model operates quietly, minimizing disruption in residential or office environments. This focus on acoustic comfort makes it an ideal choice for those who value a peaceful living or working space.

Overall, the Bryant 581A represents an excellent balance of efficiency, durability, and modern technology. With features aimed at enhancing user comfort and reducing operational costs, it stands out as a reliable solution in the competitive HVAC market. Whether for new installations or replacements, the Bryant 581A is a testament to the brand’s commitment to quality and innovation in home climate control.