PHYSICAL DATA

548F090-120

UNIT SIZE 548F

 

 

090

 

120

NOMINAL CAPACITY (tons)

 

 

71/2

 

10

OPERATING WEIGHT (lb)

 

 

 

 

1015

Unit

 

 

940

 

Economizer

 

 

75

 

75

EconoMi$erIV or EconoMi$er2

 

 

 

Roof Curb*

 

 

143

 

143

COMPRESSOR (Hermetic)

 

 

Reciprocating

 

Scroll

Quantity

 

 

2

 

2

Oil (oz)

 

 

45 ea

 

54 ea

REFRIGERANT TYPE

 

 

 

R-22

Operating Charge (lb-oz)

 

 

 

 

 

Circuit 1

 

 

5-14

 

7-14

Circuit 2

 

 

5-13

 

8- 3

OUTDOOR COIL

 

 

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

 

 

 

Fixed Orifice Metering Device

 

 

 

 

Rows...Fins/in.

 

 

1...17

 

2...17

Total Face Area (sq ft)

 

 

20.50

 

18.30

OUTDOOR FAN

 

 

 

Propeller Type

Nominal Cfm

 

 

6500

 

6500

Quantity...Diameter (in.)

 

 

2...22

 

2...22

Motor Hp...Rpm

 

 

1/4...1100

 

1/4...1100

Watts Input (Total)

 

 

500

 

500

INDOOR COIL

 

 

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

 

 

 

Fixed Orifice Metering Device

 

 

 

 

Rows...Fins/in.

 

 

3...15

 

3...15

Total Face Area (sq ft)

 

 

8.0

 

11.1

INDOOR FAN

 

 

 

Centrifugal Type

Quantity...Size (in.)

Std

 

1...15 x 15

 

1...15 x 15

 

Alt

 

1...15 x 15

 

1...15 x 15

Type Drive

High-Static

 

1...15 x 15

 

1...15 x 15

Std

 

Belt

 

Belt

 

Alt

 

Belt

 

Belt

Nominal Cfm

High-Static

 

Belt

 

Belt

Std

 

3000

 

4000

Maximum Continuous Bhp

 

2.40

 

2.40

 

Alt

 

2.40

 

2.90

Motor Frame Size

High-Static

 

3.70

 

5.25

Std

 

56

 

56

 

Alt

 

56

 

56

Nominal Rpm

High-Static

 

56

 

56

Std

 

 

 

Alt

 

 

Fan Rpm Range

High-Static

 

1725

 

1725

Std

 

590- 840

 

685- 935

 

Alt

 

685- 935

 

835-1085

Motor Bearing Type

High-Static

 

860-1080

 

830-1130

 

 

Ball

 

Ball

Maximum Allowable Rpm

Std

 

2100

 

2100

Motor Pulley Pitch Diameter Min/Max (in.)

 

2.4/3.4

 

2.8/3.8

 

Alt

 

2.8/3.8

 

3.4/4.4

 

High-Static

 

4.0/5.0

 

2.8/3.8

Nominal Motor Shaft Diameter (in.)

Std

 

5/8

 

5/8

 

Alt

 

5/8

 

7/8

Fan Pulley Pitch Diameter (in.)

High-Static

 

7/8

 

7/8

Std

 

7.0

 

7.0

 

Alt

 

7.0

 

7.0

Belt, Quantity...Type...Length (in.)

High-Static

 

8.0

 

5.8

Std

 

1...A...53

 

1...A...49

 

Alt

 

1...A...49

 

1...A...51

Pulley Center Line Distance (in.)

High-Static

 

1...A...65

 

1...BX...48

Std

 

16.75-19.25

 

15.85-17.50

 

Alt

 

16.75-19.25

 

15.85-17.50

Speed Change per Full Turn of

High-Static

 

16.75-19.25

 

15.85-17.50

Std

 

50

 

50

Moveable Pulley Flange (rpm)

Alt

 

50

 

50

Moveable Pulley Maximum Full Turns

High-Static

 

60

 

60

Std

 

5

 

5

From Closed Position

Alt

 

5

 

5

Factory Setting

High-Static

 

5

 

6

Std

 

5

 

5

 

Alt

 

5

 

5

Factory Speed Setting (rpm)

High-Static

 

5

 

5

Std

 

590

 

685

 

Alt

 

685

 

835

Fan Shaft Diameter at Pulley (in.)

High-Static

 

860

 

887

 

 

1

 

1

HIGH-PRESSURE SWITCH (psig)

 

 

 

450 ± 50

Standard Compressor Internal Relief (Differential)

 

 

 

Cutout

 

 

 

428

Reset (Auto.)

 

 

 

320

LOSS-OF-CHARGE (LOW-PRESSURE) SWITCH (psig)

 

 

 

7 ± 3

Cutout

 

 

 

Reset (Auto.)

 

 

 

22 ± 5

FREEZE PROTECTION THERMOSTAT (F)

 

 

 

30 ± 5

Opens

 

 

 

Closes

 

 

 

45 ± 5

OUTDOOR-AIR INLET SCREENS

 

 

 

Cleanable.

 

 

 

Screen quantity and size vary based on options selected.

RETURN-AIR FILTERS

 

 

 

Throwaway

Quantity...Size (in.)

 

 

4...16 x 20 x 2

 

4...20 x 20 x 2

LEGEND

 

*Weight of 14-in. roof curb.

 

 

Bhp — Brake Horsepower

 

 

 

 

 

548F

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Bryant 549C manual 548F090-120