ELECTRICAL DATA (cont)

ELECTRICAL DATA — 558F180-300 (cont)

 

 

NOMINAL

VOLTAGE

 

COMPRESSOR

 

 

OFM

 

 

IFM

POWER

ELECTRIC

 

POWER SUPPLY

UNIT

 

VOLTAGE

RANGE

NO. 1

NO.2

 

 

 

 

 

 

EXHAUST

HEAT*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

558F

 

(3 Ph, 60 Hz)

Min

Max

RLA

 

LRA

RLA

 

LRA

Qty

Hp

 

FLA

Hp

FLA

FLA

LRA

kW

FLA

MCA

MOCP†

 

 

 

 

 

 

(ea)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

124/124

150/150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

18.8

 

129/129

150/150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26/34

71/ 82

124/134

150/150

 

208/230

187

253

42

 

239

33.6

 

225

2

1

 

6.6

7.5

25.0/25.0

4.6

18.8

26/34

71/

82

129/140

150/150

 

 

 

 

42/56

117/135

178/166

200/175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

18.8

42/56

117/135

183/172

200/175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

56/75

156/180

187/211

200/225

240

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

18.8

56/75

156/180

193/217

200/225

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

61

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3

6

 

63

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

39

 

65

80

 

460

414

508

19.2

 

125

17.3

 

114

2

1

 

3.3

7.5

13.0

2.3

6

32

39

 

68

80

 

 

 

 

55

66

 

82

90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3

6

55

66

 

85

90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

96

 

112

125

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3

6

80

96

 

115

125

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

138/138

175/175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

18.8

 

143/143

175/175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26/34

71/ 82

138/138

175/175

 

208/230

187

253

41.4

 

312

47.1

 

245

6

0.5

 

1.7

10.0

28.0/28.0

4.6

18.8

26/34

71/

82

143/143

175/175

 

 

 

 

42/56

117/135

181/170

200/175

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

18.8

42/56

117/135

187/176

200/200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

56/75

156/180

191/215

200/225

300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.6

18.8

56/75

156/180

197/221

200/225

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3

6

 

66

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

39

 

67

80

 

460

414

508

20

 

150

19.6

 

125

6

0.5

 

0.8

10.0

14.6

2.3

6

32

39

 

70

80

 

 

 

 

55

66

 

84

90

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3

6

55

66

 

87

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80

96

 

114

125

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3

6

80

96

 

117

125

LEGEND AND NOTES FOR ELECTRICAL DATA TABLES

558F180-300

 

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

*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v, and 600 v. Heaters are rated at 240 v, 480 v, or 600 v. If power distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly. To deter- mine heater capacity at actual unit voltage, multiply 240 v, 480 v, or 600 v capac- ity by multipliers found in table on page 130. Electric heaters are field installed.

†Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combination load

EXAMPLE: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

Average Voltage = 452 + 464 + 455

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 voltage imbalance.

equipment (refer to NEC Articles 430 and 440), the overcurrent protective

device for the unit shall be fuse or HACR breaker. The Canadian units may

% Voltage Imbalance = 100 x

7

be fuse or circuit 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 Imbalance

max voltage deviation from average voltage

= 100 x

average voltage

457

= 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%, con- tact your local electric utility company immediately.

3.MCA calculation for 558F180-300 units with electric heaters over 50 kW = (1.25 x IFM amps) + (1.00 x heater FLA).

148

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Image 148
Bryant 551B, 551A ELECTRICAL DATA - 558F180-300 cont, ELECTRICAL DATA cont, Legend And Notes For Electrical Data Tables

551A, 551B, 558F specifications

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