PERFORMANCE DATA (cont)

FAN RPM AT MOTOR PULLEY SETTINGS*

 

551A

 

0

1/

1

11/

2

2

21/

 

3

 

31/

2

4

41/

5

51/

6

 

 

 

 

2

 

 

 

2

 

 

 

 

 

2

 

2

 

155

(208/230, 460 v)†

 

††

††

††

††

1064

1035

 

1006

 

978

949

920

891

863

834

155

(208/230, 460 v)**

 

††

††

††

††

1426

1393

 

1360

 

1327

1294

1261

1227

1194

1161

180†

 

††

††

††

††

1021

1002

 

984

 

965

947

928

910

891

873

180**

 

††

††

††

††

1200

1178

 

1156

 

1134

1112

1091

1069

1047

1025

*Approximate fan rpm shown.

 

 

 

 

 

 

††Due to belt and pulley style, pulley cannot be set to this number of

†Indicates standard drive package.

 

 

 

 

 

 

 

turns open.

 

 

 

 

 

 

 

**Indicates alternate drive package.

EVAPORATOR FAN MOTOR PERFORMANCE

 

UNIT

 

NOMINAL

VOLTAGE

MAX

EFF.

MAX

MAX

MAX

 

551A

 

HP

WATTS

%

BHP

BkW

AMPS

 

 

 

 

155

 

2.9

208

2700

85.8

3.13

2.34

9.46

 

(Standard

 

2.9

230

2700

85.8

3.13

2.34

8.6

 

Motor)

 

2.9

460

2700

85.8

3.13

2.34

4.3

 

155

 

3.7

208

3775

85.8

4.38

3.27

10.5

 

(Optional

 

3.7

230

3775

85.8

4.38

3.27

10.5

 

Motor)

 

3.7

460

3775

85.8

4.38

3.27

4.8

 

180

 

5

208

5180

87.5

6.13

4.57

15.8

 

 

5

230

5180

87.5

6.13

4.57

15.8

 

 

 

5

460

5180

87.5

6.13

4.57

7.9

 

LEGEND

 

 

 

 

 

 

 

BHP

Brake Horsepower

 

 

 

 

 

 

 

BkW

Brake Kilowatts

 

 

 

 

 

 

 

EVAPORATOR-FAN MOTOR EFFICIENCY

MOTOR

MOTOR EFFICIENCY

HORSEPOWER

(%)

2.9, 3.7

85.8

5.0

87.5

NOTE: All indoor-fan motors 5 hp and larger meet the minimum efficiency re- quirements as established by the Energy Policy Act of 1992 (EPACT) effective October 24, 1997.

Fan Performance Using Accessory Power Exhaust

(551A155,180)

 

NOTE: The CRRFCURB013A00 horizontal supply/return adapter accessory

NOTE: The CRRFCURB013A00 high static regain adapter accessory may be

improves 551A155,180 fan performance by increasing external static pressure

by amount shown above. To convert from in. wg to Pa use the following formula:

used to provide horizontal supply/return.

in. wg x 249.1 = Pa

 

 

 

Horizontal Supply/Return Fan Performance with CRRFCURB013A00

High Static Regain Adapter

551A155-180

163

Page 163
Image 163
Bryant 551B, 558F Evaporator Fan Motor Performance, Fan Performance Using Accessory Power Exhaust 551A155,180, 551A155-180

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.