PHYSICAL DATA (cont)

549B090,120

BASE UNIT 549B

090

 

 

120

 

 

 

NOMINAL CAPACITY (tons)

71/2

 

 

10

 

 

 

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

Unit

870

 

 

1000

 

 

 

Durablade Economizer

44

 

 

44

 

 

 

EconoMi$er

62

 

 

62

 

 

 

Roof Curb

223

 

 

223

 

 

 

COMPRESSOR

 

Scroll

 

 

 

Quantity

2

 

 

2

 

 

 

Oil (oz) (each compr)

57

 

 

57

 

 

 

REFRIGERANT TYPE

 

R-22

 

 

 

Operating Charge (lb)

 

 

 

 

 

 

 

Circuit 1

9.1

 

 

10.6

 

 

 

 

 

 

 

Circuit 2

9.6

 

 

9.9

 

 

 

OUTDOOR FAN

 

Propeller

 

 

 

Quantity...Diameter (in.)

2...22

 

 

2...22

 

 

 

Nominal Cfm

6500

 

 

6500

 

 

 

Motor Hp...Rpm

1/4...1100

 

 

1/4...1100

 

 

 

OUTDOOR COIL

Enhanced Copper Tubes, Aluminum Fins, Fixed Orifice Metering Device

 

549B036

 

Rows...Fins/in.

2...17

 

 

2...17

 

 

Total Face Area (sq ft)

20.5

 

 

25.1

 

 

 

INDOOR FAN

 

Centrifugal

 

 

 

Size (in.)

15 x 15

 

 

15 x 15

 

 

 

Type Drive

Belt

 

 

Belt

 

-120

 

Nominal Cfm

3000

 

 

4000

 

 

Maximum Continuous Bhp

2.90

 

 

4.20

 

 

 

Motor Frame

56

 

 

56

 

 

 

Fan Rpm Range

725-925

 

 

860-1080

 

 

 

Motor Bearing Type

Ball

 

 

Ball

 

 

 

Maximum Fan Rpm

1725

 

 

2100

 

 

 

Motor Pulley Pitch Diameter

 

 

 

 

 

 

 

A/B (in.)

3.4/4.4

 

 

4.0/5.0

 

 

 

Fan Pulley Pitch Diameter (in.)

8.0

 

 

8.0

 

 

 

Belt — Type...Length (in.)

A...51

 

 

A...51

 

 

 

Pulley Center Line Distance (in.)

16.75-19.25

 

 

15.85-17.50

 

 

 

Fan Shaft Diameter at Pulley (in.)

1

 

 

1

 

 

 

Speed Change per Full Turn of

 

 

 

 

 

 

 

Movable Pulley Flange (rpm)

50

 

 

45

 

 

 

Movable Pulley Maximum Full

 

 

 

 

 

 

 

Turns from Closed Position

5

 

 

5

 

 

 

Factory Setting — Full Turns Open

5

 

 

5

 

 

 

Factory Speed Setting (rpm)

725

 

 

860

 

 

 

INDOOR COIL

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

 

 

 

Rows...Fins/in.

3...15

 

 

4...15

 

 

 

Total Face Area (sq ft)

8.89

 

 

11.11

 

 

 

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 FILTER

 

Cleanable

 

 

 

Quantity...Size (in.)

 

1...20 x 25 x 1

 

 

 

 

1...16 x 25 x 1

 

 

 

 

 

 

 

 

RETURN-AIR FILTERS

 

Throwaway

 

 

 

Quantity...Size (in.)

4...16 x 20 x 2

 

 

4...20 x 20 x 2

 

 

 

LEGEND

Bhp — Brake Horsepower

69

Page 68 Page 70
Page 69
Image 69
Bryant 542J, 548F manual 549B090,120
Page 68 Page 70

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.
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