PHYSICAL DATA — 551B036-072

 

 

 

UNIT 551B

036

 

048

 

060

 

072

 

 

 

NOMINAL CAPACITY (tons)

3

 

4

 

5

 

6

 

 

 

OPERATING WEIGHT (lb)

 

 

 

 

 

 

 

 

 

 

Unit

435

 

445

 

465

 

520

 

 

 

EconoMi$er

47

 

47

 

47

 

47

 

 

 

Perfect Humidity™ Dehumidification Package

18

 

18

 

18

 

18

 

 

 

Roof Curb

115

 

115

 

115

 

115

 

 

 

COMPRESSOR

 

 

 

 

Scroll

 

 

 

 

Quantity

1

 

1

 

1

 

1

 

 

 

Oil (oz)

42

 

53

 

50

 

60

 

 

 

 

 

 

150-

 

REFRIGERANT TYPE

 

 

 

 

R-22

 

 

Operating Charge (lb-oz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard Unit

5- 8

 

8-6

 

10- 0

 

9-10

 

551B036

 

Unit With Perfect Humidity Dehumidification Package

8-13

 

11-2

 

12-13

 

13- 6

 

 

CONDENSER FAN

 

 

 

Propeller Type

 

 

 

 

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)

8

 

8

 

4

 

4

 

 

 

180

 

180

 

320

 

320

 

 

 

CONDENSER COIL

 

High-Efficiency Enhanced Copper Tubes, Lanced Aluminum Fins

 

 

 

 

Standard Unit

 

 

 

 

 

 

 

 

 

 

Rows...Fins/in.

1...17

 

2...17

 

2...17

 

2...17

 

 

 

 

 

 

 

 

 

Total Face Area (sq ft)

14.6

 

16.5

 

16.5

 

16.5

 

 

 

Unit With Perfect Humidity Dehumidification Package

 

 

 

 

 

 

 

 

 

 

Rows...Fins/in.

1...17

 

1...17

 

1...17

 

1...17

 

 

 

Total Face Area (sq ft)

3.9

 

3.9

 

3.9

 

3.9

 

 

 

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

1200

 

1600

 

2000

 

2400

 

 

 

Maximum Continuous Bhp

 

 

 

 

 

 

 

 

 

 

Standard

1.20

 

1.20

 

1.30/2.40*

 

2.40

 

 

 

High Static

2.40

 

2.40

 

2.90

 

2.90

 

 

 

Motor Frame

 

 

 

 

 

 

 

 

 

 

Standard

48

 

48

 

56

 

56

 

 

 

High Static

56

 

56

 

56

 

56

 

 

 

Fan Rpm Range

 

 

 

 

 

 

 

 

 

 

Standard

760-1090

 

840-1185

 

1020-1460/1120-1585*

 

1120-1585

 

 

 

High Static

1075-1455

 

1075-1455

 

1300-1685

 

1300-1685

 

 

 

Motor Bearing Type

Ball

 

Ball

 

Ball

 

Ball

 

 

 

Maximum Fan Rpm

2100

 

2100

 

2100

 

2100

 

 

 

Motor Pulley Pitch Diameter A/B (in.)

 

 

 

 

 

 

 

 

 

 

Standard

1.9/2.9

 

1.9/2.9

 

2.4/3.4

 

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.)

 

 

 

 

 

 

 

 

 

 

Standard

1/

 

1/

 

5/

 

5/

 

 

 

High Static

2

 

2

 

8

 

8

 

 

 

5/

 

5/

 

7/

 

7/

 

 

 

Fan Pulley Pitch Diameter (in.)

8

 

8

 

8

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard

4.5

 

4.0

 

4.0

 

4.0

 

 

 

High Static

4.5

 

4.0

 

4.5

 

4.5

 

 

 

Belt — Quantity...Type...Length (in.)

 

 

 

 

 

 

 

 

 

 

Standard

1...A...33

 

1...A...36

 

1...A...40

 

1...A...38

 

 

 

High Static

1...A...39

 

1...A...39

 

1...A...40

 

1...A...40

 

 

 

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)

 

 

 

 

 

 

 

 

 

 

Standard

65

 

70

 

75

 

95

 

 

 

High Static

65

 

65

 

60

 

60

 

 

 

Movable Pulley Maximum Full Turns

 

 

 

 

 

 

 

 

 

 

From Closed Position

 

 

 

 

 

 

 

 

 

 

Standard

5

 

5

 

6

 

5

 

 

 

High Static

6

 

6

 

5

 

5

 

 

 

Factory Setting — Full Turns Open

 

 

 

 

 

 

 

 

 

 

Standard

3

 

3

 

3

 

3

 

 

 

High Static

31/

 

31/

 

31/

 

31/

 

 

 

Factory Speed Setting (rpm)

2

 

2

 

2

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard

890

 

980

 

1240

 

1304

 

 

 

High Static

1233

 

1233

 

1396

 

1396

 

 

 

Fan Shaft Diameter at Pulley (in.)

5/

 

5/

 

5/

 

5/

 

 

 

 

8

 

8

 

8

 

8

 

 

 

EVAPORATOR COIL

High Efficiency Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ 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 (Differential)

 

 

 

450 ± 50

 

 

 

 

 

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 *Single-phase/three-phase.

72

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Image 72
Bryant 558F, 551A manual PHYSICAL DATA - 551B036-072
Page 71 Page 73

551A, 551B, 558F specifications

The Bryant 551B and 551C are two highly efficient air conditioning units designed to provide optimal comfort in residential settings. Known for their reliability and performance, these models are part of Bryant's esteemed line of heating and cooling solutions.

One of the standout features of the Bryant 551B is its two-stage cooling system, which allows for better humidity control and increased comfort. This ensures that homeowners can enjoy consistent temperatures while reducing energy consumption. The unit operates quietly, thanks to its noise-reducing technology, making it an ideal choice for bedrooms and living spaces.

On the other hand, the Bryant 551C builds upon this foundation with its variable-speed compressor. This technology allows the unit to adjust its cooling output according to the specific needs of the home. This results in seamless operation and even greater energy efficiency. Both models also incorporate Bryant's advanced control capabilities, which allow users to monitor and adjust settings remotely via smart devices, adding a layer of convenience and modernity to home climate control.

With an emphasis on durability, both the 551B and 551C feature a galvanized steel cabinet that protects against weather-related damage. The powder coat finish further enhances their resistance to rust and corrosion, ensuring a long lifespan and minimal maintenance.

Another significant characteristic of these units is their excellent Seasonal Energy Efficiency Ratio (SEER) ratings. The 551B boasts a SEER rating of up to 16, while the 551C takes it even further with ratings exceeding 20. This efficiency not only translates to lower energy bills for homeowners but also contributes to a reduced carbon footprint, making these units environmentally friendly options.

Both models are also designed to operate with eco-friendly refrigerants, aligning with modern energy standards and regulations aimed at reducing greenhouse gas emissions.

In summary, the Bryant 551B and 551C are exemplary choices for homeowners looking for reliable, efficient, and high-performing air conditioning solutions. With features such as two-stage and variable-speed compressors, advanced smart technology, and robust construction, these models stand out in the competitive HVAC market. They promise a comfortable indoor environment along with significant energy savings, making them a wise investment for the future.
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