Accessory/fiop static pressure, Indoor sound data, Evaporator fan motor performance – Bryant 581C User Manual

Page 272: Fan rpm at motor pulley settings, 272 performance data (cont)

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272

PERFORMANCE DATA (cont)

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

LEGEND

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

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

EVAPORATOR FAN MOTOR PERFORMANCE — 581A155,180

LEGEND

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

*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.

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

FIOP — Factory-Installed Option

UNIT 581A

SOUND

RATING-dB

(60 Hz)

A-WEIGHTED

(dB)

SOUND POWER (dB)

Octave Bands

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

UNIT 581A

NOMINAL HP

VOLTAGE

MAX WATTS

EFF. %

MAX BHP

MAX BkW

MAX AMPS

155

(Standard Motor)

2.9

208

2700

85.8

3.13

2.34

9.46

2.9

230

2700

85.8

3.13

2.34

8.6

2.9

460

2700

85.8

3.13

2.34

4.3

3

575

3065

81.7

3.38

2.53

3.9

155

(Optional Motor)

3.7

208

3610

85.8

4.38

3.27

10.5

3.7

230

3610

85.8

4.38

3.27

10.5

3.7

460

3610

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

5

575

5180

87.5

6.13

4.57

6.0

BHP — Brake Horsepower
BkW — Brake Kilowatts

UNIT
581A

MOTOR PULLEY TURNS OPEN

0

1

/

2

1

1

1

/

2

2

2

1

/

2

3

3

1

/

2

4

4

1

/

2

5

5

1

/

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

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