Bryant 549B036-072, Physical Data, Scroll, R-22, Propeller, Centrifugal, Cleanable, Throwaway

Models: 549B 548F 542J

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PHYSICAL DATA

549B036-072

 

 

 

BASE UNIT 549B

036

048

 

060

072

 

 

 

NOMINAL CAPACITY (tons)

3

4

 

5

6

 

 

 

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

 

Unit

500

550

 

590

630

 

 

 

Durablade Economizer

34

34

 

34

34

 

 

 

EconoMi$er

47

47

 

47

47

 

 

 

Roof Curb

115

115

 

115

115

 

 

 

COMPRESSOR

 

 

Scroll

 

 

 

 

Quantity

1

1

 

1

1

 

 

 

Oil (oz)

42

53

 

50

60

 

 

 

REFRIGERANT TYPE

 

 

 

R-22

 

 

 

 

Operating Charge (lb)

6.9

9.6

 

10.8

17.7

 

 

 

OUTDOOR FAN

 

 

Propeller

 

 

 

 

Quantity...Diameter (in.)

1...22

1...22

 

1...22

1...22

 

 

 

Nominal Cfm

3500

3500

 

3500

3500

 

 

 

Motor Hp...Rpm

1/8...825

1/8...825

 

1/4...1100

1/4...1100

 

 

 

OUTDOOR COIL

Enhanced Copper Tubes, Aluminum Fins, Fixed Orifice Metering Device

 

120-549B036

 

Rows...Fins/in.

1...17

2...17

 

2...17

2...17

 

 

Total Face Area (sq ft)

14.58

16.53

 

16.53

16.53

 

 

 

 

 

 

 

INDOOR FAN

 

 

Centrifugal

 

 

 

 

Size (in.)

10 x 10

10 x 10

 

10 x 10

10 x 10

 

 

 

Type Drive

Belt

Belt

 

Belt

Belt

 

 

 

Nominal Cfm

1200

1600

 

2000

2400

 

 

 

Maximum Continuous Bhp

1.20

1.20

 

1.80

2.40

 

 

 

Motor Frame

48

48

 

48

56

 

 

 

Fan Rpm

760-1090

840-1185

 

1020-1460

1120-1585

 

 

 

Motor Bearing Type

Ball

Ball

 

Ball

Ball

 

 

 

Maximum Fan Rpm

1725

1725

 

1725

1725

 

 

 

Motor Pulley Pitch Diameter A/B (in.)

1.9/2.9

1.9/2.9

 

2.4/3.4

2.4/3.4

 

 

 

Fan Pulley Pitch Diameter (in.)

4.5

4.0

 

4.0

3.7

 

 

 

Belt — Type...Length (in.)

A...33

A...33

 

A...38

A...38

 

 

 

Pulley Center Line Distance (in.)

10.0-12.4

10.0-12.4

 

14.7-15.5

14.7-15.5

 

 

 

Speed Change per Full Turn of

 

 

 

 

 

 

 

 

Movable Pulley Flange (rpm)

65

70

 

93

93

 

 

 

Movable Pulley Maximum Full Turns

 

 

 

 

 

 

 

 

From Closed Position

5

5

 

6

5

 

 

 

Factory Setting Full Turns Open

3

3

 

3

3

 

 

 

Factory Speed Setting (rpm)

890

980

 

1240

1305

 

 

 

Fan Shaft Diameter at Pulley (in.)

5/8

5/8

 

5/8

5/8

 

 

 

INDOOR COIL

Enhanced Copper Tubes, Aluminum Double Wavy Fins, Fixed Orifice Metering Device

 

 

 

Rows...Fins/in.

2...15

2...15

 

4...15

4...15

 

 

 

Total Face Area (sq ft)

5.5

5.5

 

5.5

5.5

 

 

 

HIGH-PRESSURE SWITCH (psig)

 

 

 

 

 

 

 

 

Standard Compressor Internal Relief

 

 

625

 

 

 

 

Cutout

 

 

428

 

 

 

 

Reset (Auto.)

 

 

320

 

 

 

 

LOSS-OF-CHARGE/LOW-PRESSURE SWITCH

 

 

 

 

 

 

 

 

(Liquid Line) (psig)

 

 

 

 

 

 

 

 

Cutout

 

 

7 ± 3

 

 

 

 

Reset (Auto.)

 

 

22 ± 5

 

 

 

 

FREEZE PROTECTION THERMOSTAT

 

 

 

 

 

 

 

 

Opens (F)

 

 

30

 

 

 

 

Closes (F)

 

 

45

 

 

 

 

OUTDOOR-AIR INLET SCREENS

 

 

Cleanable

 

 

 

 

Quantity...Size (in.)

 

 

1...20 x 24 x 1

 

 

 

 

RETURN-AIR FILTERS

 

 

Throwaway

 

 

 

 

Quantity...Size (in.)

 

 

2...16 x 25 x 2

 

LEGEND

Bhp — Brake Horsepower

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Page 68
Image 68
Bryant 542J, 548F manual 549B036-072, Physical Data, Scroll, R-22, Propeller, Centrifugal, Cleanable, Throwaway