PHYSICAL DATA

548F036-072

UNIT SIZE 548F

 

036

048

 

060

072

NOMINAL CAPACITY (tons)

 

3

4

 

5

6

OPERATING WEIGHT (lb)

 

 

 

 

 

 

Unit

 

500

520

 

550

590

Economizer

 

 

 

 

 

 

Durablade

 

34

34

 

34

34

EconoMi$er

 

47

47

 

47

47

Roof Curb*

 

115

115

 

115

115

COMPRESSOR

 

 

 

Hermetic

 

Quantity

 

1

1

 

1

1

Oil (oz)

 

45

54

 

50

54

REFRIGERANT TYPE

 

 

 

R-22

 

Operating Charge (lb-oz)

 

 

 

 

 

 

Circuit 1

 

5-1

6-0

 

8-0

11-2

Circuit 2

 

—

—

 

—

—

OUTDOOR COIL

 

Enhanced Copper Tubes, Aluminum Lanced Fins, Fixed Orifice Metering Device

Rows...Fins/in.

 

1...17

1...17

 

2...17

2...17

Total Face Area (sq ft)

 

10.31

14.58

 

12.25

16.53

OUTDOOR FAN

 

 

 

Propeller Type

 

Nominal Cfm

 

4000

4000

 

4000

4000

Quantity...Diameter (in.)

 

1...22.0

1...22.0

 

1...22.0

1...22.0

Motor Hp...Rpm

 

1/4...1100

1/4...1100

 

1/4...1100

1/4...1100

Watts Input (Total)

 

325

325

 

325

325

INDOOR COIL

 

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

Rows...Fins/in.

 

2...15

2...15

 

3...15

3...15

Total Face Area (sq ft)

 

4.2

4.2

 

5.5

5.5

INDOOR FAN

 

 

 

Centrifugal Type

 

Quantity...Size (in.)

Std

1...10 x 10

1...10 x 10

 

1...11 x 10

1...10 x 10

 

Alt

1...10 x 10

1...10 x 10

 

1...10 x 10

—

 

High-Static

1...10 x 10

1...10 x 10

 

1...10 x 10

1...10 x 10

Type Drive

Std

Direct

Direct

 

Direct

Belt

 

Alt

Belt

Belt

 

Belt

—

Nominal Cfm

High-Static

Belt

Belt

 

Belt

Belt

 

1200

1600

 

2000

2400

Maximum Continuous Bhp

Std

.34

.75

 

1.20

2.40

 

Alt

1.00

1.00

 

1.30/2.40†

—

 

High-Static

2.40

2.40

 

2.90

2.90

Motor Frame Size

Std

48

48

 

48

56

 

Alt

48

48

 

56

—

 

High-Static

56

56

 

56

56

Nominal Rpm High/Low

Std

860/800

1075/970

 

1075/970

—

 

Alt

1620

1620

 

1725

—

 

High-Static

1725

1725

 

1725

1725

Fan Rpm Range

Std

—

—

 

—

1070-1460

 

Alt

760-1000

835-1185

 

900-1300

—

Motor Bearing Type

High-Static

1075-1455

1075-1455

 

1300-1685

1300-1685

 

Ball

Ball

 

Ball

Ball

Maximum Allowable Rpm

 

2100

2100

 

2100

2100

Motor Pulley Pitch Diameter Min/Max (in.)

Std

—

—

 

—

2.8/3.8

 

Alt

1.9/2.9

1.9/2.9

 

2.4/3.4

—

 

High-Static

2.8/3.8

2.8/3.8

 

3.4/4.4

3.4/4.4

Nominal Motor Shaft Diameter (in.)

Std

1/2

1/2

 

1/2

5/8

 

Alt

1/2

1/2

 

5/8

—

Fan Pulley Pitch Diameter (in.)

High-Static

5/8

5/8

 

5/8

5/8

Std

—

—

 

—

4.5

 

Alt

4.5

4.0

 

4.5

—

 

High-Static

4.5

4.5

 

4.5

4.5

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

Std

—

—

 

—

1...A...40

 

Alt

1...A...34

1...A...34

 

1...A...39

—

 

High-Static

1...A...39

1...A...39

 

1...A...40

1...A...40

Pulley Center Line Distance (in.)

Std

—

—

 

—

14.7-15.5

 

Alt

10.0-12.4

10.0-12.4

 

14.7-15.5

—

Speed Change per Full Turn of

High-Static

10.0-12.4

10.0-12.4

 

14.7-15.5

14.7-15.5

 

—

—

 

—

80

Movable Pulley Flange (rpm)

Std

 

 

 

 

 

 

 

Alt

48

70

 

80

—

Movable Pulley Maximum Full Turns

High-Static

65

65

 

60

60

 

—

—

 

—

5

From Closed Position

Std

 

 

 

 

 

 

 

Alt

5

5

 

5

—

 

High-Static

6

6

 

5

5

Factory Setting

Std

—

—

 

—

3

 

Alt

3

3

 

3

—

Factory Speed Setting (rpm)

High-Static

31/2

31/2

 

31/2

31/2

Std

—

—

 

—

1225

 

Alt

856

975

 

1060

—

Fan Shaft Diameter at Pulley (in.)

High-Static

1233

1233

 

1396

1396

 

5/8

5/8

 

5/8

5/8

HIGH-PRESSURE SWITCH (psig)

 

 

 

 

 

 

Standard Compressor Internal Relief (Differential)

 

 

 

450 ± 50

 

Cutout

 

 

 

428

 

Reset (Auto.)

 

 

 

320

 

LOSS-OF-CHARGE SWITCH (psig)

 

 

 

 

 

 

Cutout

 

 

 

7 ± 3

 

Reset (Auto.)

 

 

 

22 ± 7

 

FREEZE-PROTECTION THERMOSTAT (F)

 

 

 

 

 

 

Opens

 

 

 

30 ± 5

 

Closes

 

 

 

45 ± 5

 

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

*Weight of 14-in. roof curb.

†Single phase/three phase.

NOTE: The 548F units have a loss-of-charge switch located in the liquid line.

548F036-120

19

Page 18 Page 20
Page 19
Image 19
Bryant 542J, 549B manual Physical Data, 548F036-072
Page 18 Page 20

549B, 548F, 542J specifications

Bryant 542J is a high-efficiency gas furnace that stands out for its reliability and advanced heating technologies. Designed to deliver consistent warmth and comfort in residential settings, it combines innovative engineering with energy-efficient features.

One of the key characteristics of the Bryant 542J is its two-stage heating capability. This means that the furnace can adjust its heat output according to the heating demands of your home. During milder weather, it operates at a lower stage, consuming less energy while still maintaining a comfortable environment. When the temperatures drop, the furnace shifts to its higher capacity, providing the necessary warmth efficiently. This not only enhances comfort but also contributes to lower energy bills.

In addition to its two-stage operation, the Bryant 542J also incorporates a variable-speed blower motor. This technology allows the furnace to adjust the airflow depending on the heating requirements, ensuring an even distribution of warm air throughout the home. The variable-speed blower also operates more quietly than conventional fixed-speed motors, creating a serene indoor environment.

Energy efficiency is a hallmark of the Bryant 542J, boasting an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96.5%. This impressive rating means that a significant portion of the energy consumed is effectively converted into usable heat, resulting in substantial savings on heating costs over time. Furthermore, the furnace is equipped with a sealed combustion system that draws air from outside the home, minimizing energy waste and improving indoor air quality.

Diagnostic features are another highlight of the Bryant 542J, which come equipped with SmartEvap technology. This allows the unit to self-diagnose potential issues, providing homeowners with peace of mind and simplifying maintenance procedures.

Durability is also a key feature of the Bryant 542J. It is constructed with high-quality materials designed to withstand harsh winter conditions, ensuring a long lifespan and reliable performance. Its compact design also allows for flexible installation, making it suitable for various residential layouts.

In summary, the Bryant 542J is more than just a gas furnace; it is a sophisticated heating solution that combines efficiency, comfort, and reliability. With features such as two-stage heating, a variable-speed blower, high AFUE ratings, and advanced diagnostics, it is an excellent choice for homeowners seeking an efficient and effective heating system.
Top Page Image Contents