Bryant 581A operation manual Air Quantity Limits, Evaporator Fan Motor Specifications

Page 23

Table 11 — Air Quantity Limits

UNIT

MINIMUM

MAXIMUM

581A

CFM

CFM

155

3600

6,000

180

4500

7,500

240

6000

10,000

Table 12 — Evaporator Fan Motor Specifications

UNIT

NOMINAL

VOLTAGE

MAX

EFF.

MAX

MAX

MAX

581A

Hp

WATTS

BHP

BkW

AMPS

 

 

155

2.9

208

2700

85.8%

3.13

2.34

9.46

(Standard

2.9

230

2700

85.8%

3.13

2.34

8.6

Motor)

2.9

460

2700

85.8%

3.13

2.34

4.3

155

3.7

208

3775

85.8%

4.38

3.27

10.5

(Optional

3.7

230

3775

85.8%

4.38

3.27

10.5

Motor)

3.7

460

3775

85.8%

4.38

3.27

4.8

180

5

208

5180

87.5%

6.13

4.57

15.8

5

230

5180

87.5%

6.13

4.57

15.8

 

5

460

5180

87.5%

6.13

4.57

7.9

240

7.5

208

7915

88.5%

9.47

7.06

22

7.5

230

8640

88.5%

10.33

7.71

22

 

7.5

460

8640

88.5%

10.33

7.71

13

BHP — Brake Horsepower

Table 13 — Accessory/FIOP Economizer Static Pressure (in. wg)

UNIT

UNIT

CFM

ECONOMIZER

581A

VOLTAGE

PRESSURE DROP

 

 

 

3,750

.03

155, 180

All

4,000

.03

5,000

.05

 

 

 

6,000

.07

 

 

7,500

.10

 

 

6,000

.07

240

All

7,200

.09

9,000

.11

 

 

 

 

10,000

.12

LEGEND

bhp — Brake Horsepower FIOP — Factory-Installed Option

NOTES:

1.The factory-assembled horizontal adapter substantially improves fan performance. See Fig. 27.

2.The static pressure must be added to external static pressure. The sum and the evaporator entering-air cfm should then be used in con- junction with the Fan Performance table to determine blower rpm, bhp, and watts.

Table 14 — Fan RPM at Motor Pulley Setting*

581A

0

1/

1

11/

2

21/

3

31/

2

4

41/

5

51/

6

 

 

2

 

2

 

2

 

 

 

2

 

2

 

155†

††

††

††

††

1064

1035

1006

 

978

949

920

891

863

834

 

 

 

 

 

 

 

 

 

 

 

 

 

 

155**

††

††

††

††

1426

1393

1360

1327

1294

1261

1227

1194

1161

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

180†

††

††

††

††

1021

1002

984

 

965

947

928

910

891

873

 

 

 

 

 

 

 

 

 

 

 

 

 

 

180**

††

††

††

††

1200

1178

1156

1134

1112

1091

1069

1047

1025

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240†

††

††

††

††

1151

1132

1114

1095

1077

1058

1040

1021

1002

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240**

††

††

††

††

1369

1347

1325

1303

1281

1259

1237

1215

1193

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*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.

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Contents Installation Provide Unit Support ContentsSafety Considerations Roof Curb Details Roof Mount Alternate Unit SupportII. RIG and Place Unit PositioningBase Unit Dimensions 581A155 Base Unit Dimensions 581A240 Unit 581A Physical Data581A180, 240 Unit Shown Install Flue Hood and Wind BaffleIII. Field Fabricate Ductwork IV. Make Unit Duct ConnectionsVIII. Make Electrical Connections VII. Install GAS PipingField Power Supply VI. Trap Condensate DrainOptional Economizer Field Control WiringMake OUTDOOR-AIR Inlet Adjustments Manual Outdoor-Air DamperFLA LRA MCA Mocp Electrical Data25% Outdoor-Air Section Details Install OUTDOOR-AIR HoodSeal Strip Location Enthalpy Control InstallationMotormaster I Control Installation 581A155 and 180 Only XI. Install ALL AccessoriesUnit Preparation II. Service ValvesIV. Refrigerant Service Ports START-UPVIII. Evaporator FAN VI. Internal WiringXII. Accessory Economizer Adjustment VII. Crankcase HeatersBhp 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 Air Quantity Limits Evaporator Fan Motor SpecificationsAccessory/FIOP Economizer Static Pressure in. wg Fan RPM at Motor Pulley SettingXIV. Base Unit Operation XIII. GAS HeatService Cleaning II. Lubrication IV. Evaporator FAN Service and Replacement581A240 Units Fig Belt Tension AdjustmentVI. CONDENSER-FAN Adjustment 581A155 and 180 Units FigIX. Refrigerant Charge VII. Economizer AdjustmentVIII. Power Failure XIII. Protective Devices GAS Valve AdjustmentXI. Main Burners XII. Filter DrierXV. Control Circuit XVI. Replacement PartsXVII. Diagnostic Leds XIV. Relief DevicesSpark 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 Burners will not ignite Heating Service AnalysisIGC Control Heating and Cooling Call for Free Catalog Packaged Service TrainingPage General TemperaturesElectrical Pressures
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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.

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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.
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