PERFORMANCE DATA (cont)

ELECTRIC HEATING CAPACITIES

 

 

 

ACCESSORY

ACCESSORY

UNIT

VOLTAGE

ACCESSORY

HEATER

SINGLE POINT BOX

551B

(60 Hz)

kW

PART NUMBER

PART NO.

 

 

 

CRHEATER---A00

CRSINGLE---A00

 

 

4.4

101

—

 

208/230

6.5

102

—

 

(single

8.7

103

—

 

phase)

10.5

104

—

 

 

13.0*

102*

004

 

 

4.4

101

—

036

208/230

6.5

102

—

8.7

103

—

 

(3 phase)

 

10.5

104

—

 

 

 

 

16.0

105

—

 

 

6.0

106

—

 

460

8.8

107

—

 

(3 phase)

11.5

108

—

 

 

14.0

109

—

 

 

4.4

101

—

 

208/230

8.7

103

—

 

(single

13.0*

102*

004

 

phase)

17.4*

103*

004

 

 

21.0*

104*

004

048

 

6.5

102

—

208/230

8.7

103

—

 

(3 phase)

16.0

105

—

 

 

21.0*

104*

002

 

 

6.0

106

—

 

460

11.5

108

—

 

(3 phase)

14.0

109

—

 

 

23.0*

108*

—

 

 

6.5

102

—

 

208/230

8.7

103

—

 

(single

13.0*

102*

004

 

phase)

17.4*

103*

004

 

 

21.0*

104*

004

 

 

6.5

102

—

060

208/230

10.5

104

—

16.0

105

—

(3 phase)

 

21.0*

104*

002

 

 

 

 

26.5*

105,104

002

 

 

6.0

106

—

 

460

11.5

108

—

 

14.0

109

—

 

(3 phase)

 

23.0*

108*

—

 

 

 

 

25.5*

109,108

—

 

 

6.5

102

—

 

208/230

10.5

104

—

 

16.0

105

—

 

(3 phase)

 

21.0*

104*

002

 

 

072

 

26.5*

105,104

002

 

6.0

106

—

 

 

 

460

11.5

108

—

 

14.0

109

—

 

(3 phase)

 

23.0*

108*

—

 

 

 

 

25.5*

109,108

—

 

 

 

ACCESSORY

ACCESSORY

 

 

 

UNIT

VOLTAGE

ACCESSORY

HEATER

SINGLE POINT BOX

 

 

 

551B

(60 Hz)

kW

PART NUMBER

PART NO.

 

 

 

 

 

 

CRHEATER---A00

CRSINGLE---A00

 

 

 

 

 

10.5

117

006

 

 

 

 

208/230

16.0

110

006

 

 

 

 

24.8

111

007

 

 

 

 

(3 phase)

 

 

 

 

32.0

112

007

 

 

 

 

 

 

 

 

 

 

42.4*

112,117

007†

 

551B036-

 

090,

(3 phase)

34.0

119

006

 

 

 

14.0

116

006

 

 

 

102

460

16.5

113

006

 

 

 

 

(3 phase)

27.8

114

006

 

 

 

 

33.0

115

006

 

 

 

 

 

41.7*

114,116

008

 

 

 

 

575

17.0

118

006

 

 

 

 

 

 

 

 

 

150

 

 

 

10.5

117

012

 

 

 

208/230

16.0

110

012

 

 

 

 

32.0

112

012

 

 

 

 

(3 phase)

 

 

 

 

42.4*

112,117

015

 

 

 

 

 

 

 

 

 

 

50.0*

112,110

015

 

 

 

 

 

 

 

 

120,

 

16.5

113

011

 

 

 

 

27.8

114

011

 

 

 

150

460

 

 

 

33.0

115

011**

 

 

 

 

(3 phase)

 

 

 

 

41.7*

114,116

014

 

 

 

 

 

 

 

 

 

 

50.0*

115,113

014

 

 

 

 

575

17.0

118

011

 

 

 

 

34.0

119

011

 

 

 

 

(3 phase)

 

 

 

 

51.0*

119,118

014

 

 

 

 

 

 

 

 

*Two heater packages required to provide kW indicated.

†009 for 551B102 units.

**On units with factory-installed outlet, use CRSINGLE014A00.

NOTES:

1.The kW ratings shown above are at 240, 480, and 600 v. Use the Multiplica- tion Factors table below to determine heater capacity for your particular voltage.

MULTIPLICATION FACTORS

HEATER kW

VOLTAGE DISTRIBUTION

MULTIPLICATION

RATING

V/3/60

FACTOR

 

200

.69

240

208

.75

230

.92

 

 

240

1.00

480

440

.84

460

.92

 

480

1.00

600

550

.84

575

.92

 

600

1.00

Example: 32.0 kW (at 240 v) heater on 208 v

=32.0 (.75 mult factor)

=24.0 kW capacity at 208 v

2.Heaters are not available for size 036-072 575-v units.

LEGEND AND NOTES FOR ELECTRICAL DATA TABLES

LEGEND

FLA — Full Load Amps

HACR — Heating, Air Conditioning and Refrigeration

IFM — Indoor (Evaporator) Fan Motor

LRA — Locked Rotor Amps

MCA — Minimum Circuit Amps

MOCP — Maximum Overcurrent Protection

NEC — National Electrical Code

OFM — Outdoor (Condenser) Fan Motor

RLA — Rated Load Amps

UL — Underwriters’ Laboratories

*Used to determine minimum disconnect per NEC.

†Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v or 575 v. If power distribution voltage to unit varies form rated heater voltage, heater kW will vary accordingly.

**Fuse or HACR circuit breaker per NEC. ††Units have 2 condenser-fan motors.

NOTES:

1.In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.

2.Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent of voltage imbalance.

% Voltage ImbalanceExample: Supply voltage is 460-3-60.

max voltage deviation from average voltage

= 100 x

average voltage

Example: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

452 + 464 + 455

Average Voltage =

3

1371

=

3 = 457

Determine maximum deviation from average voltage. (AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v (AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance. % Voltage Imbalance = 100 x 4577

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

3.Non-fused disconnect switch cannot be used when rooftop unit electrical ratings exceed 80 amps.

4.575-v units have UL, Canada approval only. Electric heaters are not avail- able for 036-072, 575-v units.

97

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Image 97
Bryant 558F Legend And Notes For Electrical Data Tables, PERFORMANCE DATA cont, Electric Heating Capacities, 551B036
Page 96 Page 98

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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