Table 1—Physical Data 581B

BASE UNIT 581B

 

036

 

048

 

060

 

072

NOMINAL CAPACITY (tons)

 

3

 

4

 

5

 

6

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

 

Unit

 

530

 

540

 

560

 

635

Perfect HumidityAdaptive Dehumidification System

 

15

 

23

 

25

 

29

EconoMi$er IV

 

50

 

50

 

50

 

50

Roof Curb

 

115

 

115

 

115

 

115

COMPRESSOR

 

 

 

Scroll

 

 

 

Quantity

 

1

 

1

 

1

 

1

Oil (oz)

 

42

 

53

 

50

 

60

REFRIGERANT TYPE

 

 

 

R-22

 

 

 

Expansion Device

 

 

 

AcutrolMetering Device

 

 

 

Operating Charge (lb-oz)

 

 

 

 

 

 

 

 

Standard Unit

 

5-8

 

10-2

 

10-0

 

12- 8

Unit With Perfect Humidity Adaptive Dehumidification System

12-5

 

18-8

 

20-5

 

23-14

CONDENSER FAN

 

 

 

Propeller

 

 

 

Quantity...Diameter (in.)

 

1...22

 

1...22

 

1...22

 

1...22

Nominal Cfm

 

3500

 

3500

 

4100

 

4100

Motor Hp...Rpm

 

1/ ...825

 

1/ ...825

 

1/ ...1100

 

1/ ...1100

Watts Input (Total)

 

4

 

4

 

4

 

4

 

180

 

180

 

320

 

320

CONDENSER COIL

 

 

3/8---in. OD Enhanced Copper Tubes, Aluminum Lanced Fins

 

Rows...Fins/in.

 

1...17

 

2...17

 

2...17

 

2...17

Total Face Area (sq ft)

 

14.6

 

16.5

 

16.5

 

21.3

EVAPORATOR COIL

 

3/8---in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins

 

Standard Unit

 

 

 

 

 

 

 

 

Rows...Fins/in.

 

2...15

 

2...15

 

4...15

 

4...15

Total Face Area (sq ft)

 

5.5

 

5.5

 

5.5

 

7.3

Unit with Perfect Humidity Adaptive Dehumidification System

 

 

 

 

 

 

 

Rows...Fins/in.

 

1...17

 

2...17

 

2...17

 

2...17

Total Face Area (sq ft)

 

3.9

 

3.9

 

3.9

 

5.2

EVAPORATOR FAN

 

 

 

Centrifugal Type, Belt Drive

 

Quantity...Size (in.)

 

1...10 x 10

 

1...10 x 10

 

1...10 x 10

 

1...10 x 10

Nominal Cfm

Std

1200

 

1600

 

2000

 

2400

Maximum Continuous Bhp

1.20

 

1.20

 

1.30/2.40*

 

2.40

 

Hi-Static

2.40

 

2.40

 

2.90

 

2.90

Motor RPM

Std

1620

 

1620

 

1725

 

1725

 

Hi-Static

1725

 

1725

 

1725

 

1725

Motor Frame Size

Std

48

 

48

 

48/56*

 

56

 

Hi-Static

56

 

56

 

56

 

56

Fan Rpm Range

Std

680-1044

 

770-1185

 

1035-1460

 

1119-1585

Motor Bearing Type

Hi-Static

1075-1455

 

1075-1455

 

1300-1685

 

1300-1685

 

Ball

 

Ball

 

Ball

 

Ball

Maximum Fan Rpm

Std

2100

 

2100

 

2100

 

2100

Motor Pulley Pitch Diameter A/B (in.)

1.9/2.9

 

1.9/2.0

 

2.4/3.4

 

2.4/3.4

 

Hi-Static

2.8/3.8

 

2.8/3.8

 

3.4/4.4

 

3.4/3.4

Nominal Motor Shaft Diameter (in.)

Std

1/2

 

1/2

 

5/8

 

5/8

 

Hi-Static

5/8

 

5/8

 

5/8

 

7/8

Fan Pulley Pitch Diameter (in.)

Std

4.5

 

4.0

 

4.0

 

4.0

 

Hi-Static

4.5

 

4.0

 

4.5

 

4.5

Belt — Type...Length (in.)

Std

1...A...36

 

1...A...36

 

1....4...40

 

1...A...38

Pulley Center Line Distance (in.)

Hi-Static

1...A...39

 

1...A...39

 

1...A...40

 

1...A...40

Std

10.0-12.4

 

10.0-12.4

 

14.7-15.5

 

14.7-15.5

Speed Change per Full Turn of

65

 

70

 

75

 

95

Movable Pulley Flange (rpm)

Hi-Static

65

 

65

 

60

 

60

Movable Pulley Maximum Full

Std

5

 

5

 

6

 

5

Turns from Closed Position

Hi-Static

6

 

6

 

5

 

5

Factory Setting — Full Turns Open

Std

3

 

3

 

3

 

3

 

Hi-Static

31/2

 

31/2

 

31/2

 

31/2

Factory Speed Setting (rpm)

Std

826

 

936

 

1248

 

1305

Fan Shaft Diameter at Pulley (in.)

Hi-Static

1233

 

1233

 

1396

 

1396

 

5/8

 

5/8

 

5/8

 

5/8

LEGEND

Bhp — Brake Horsepower

581B,C

9

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Bryant 581B036--072, 581C024--060 installation instructions Physical Data 581B, Base Unit 581B