Table 5 — Electrical Data — 38AUZ*07-14

60 Hz Units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNIT

FACTORY-

 

NOMINAL

VOLTAGE

COMPRESSOR

FAN MOTORS

POWER

SIZE

INSTALLED

 

VOLTAGE

RANGE*

 

 

 

(Qty 2)

SUPPLY

38AU

OPTION

 

V-Ph-Hz

MIN

MAX

RLA

 

LRA

FLA (ea)

LRA (ea)

MCA

MOCP

 

NONE OR DISCONNECT

 

208/230-3-60

187

253

19

 

123

1.5

3.7

25.2

45

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Z*07

NONE OR DISCONNECT

 

460-3-60

414

506

9.7

 

62

0.8

1.9

12.9

20

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

575-3-60

518

633

7.4

 

50

0.6

1.6

9.9

15

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

208/230-3-60

187

253

25

 

164

1.5

3.7

32.7

50

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Z*08

NONE OR DISCONNECT

 

460-3-60

414

506

12.2

 

100

0.8

1.9

16.0

25

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

575-3-60

518

633

9.0

 

78

0.6

1.6

11.8

20

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

208/230-3-60

187

253

30.1

 

225

1.5

3.7

39.1

60

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Z*12

NONE OR DISCONNECT

 

460-3-60

414

506

16.7

 

114

0.8

1.9

21.7

30

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

575-3-60

518

633

12.2

 

80

0.6

1.6

15.8

25

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

208/230-3-60

187

253

48.1

 

245

1.5

3.7

61.6

80

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Z*14

NONE OR DISCONNECT

 

460-3-60

414

506

18.6

 

125

0.8

1.9

24.0

30

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NONE OR DISCONNECT

 

575-3-60

518

633

14.7

 

100

0.6

1.6

19.0

30

 

CONVENIENCE OUTLET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEGEND

FLA

Full Load Amps

LRA

Locked Rotor Amps

MCA

Minimum Circuit Amps

MOCP —

Maximum Overcurrent

Protection

NEC

National Electrical Code

RLA

Rated Load Amps

*Units are suitable for use on electrical systems where voltage supplied to the unit terminals is not below or above the listed limits.

NOTES:

1.The MCA and MOCP values are calculated in accordance with the NEC, Article 440.

2.Motor RLA and LRA values are established in accordance with Underwriters’ Laboratories (UL), Standard 1995.

3.The 575-v units are UL, Canada-listed only.

4.Convenience outlet is available as a factory-installed option and is 115-v, 1 ph, 60 Hz.

5.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 percentage of voltage imbalance.

max voltage deviation from average voltage

% Voltage Imbalance = 100 x

 

 

average voltage

Example: Supply voltage is 230-3-60

 

 

 

AB = 224 v

 

 

 

BC = 231 v

 

 

 

AC = 226 v

 

 

 

(224 + 231 + 226)

681

Average Voltage =

 

 

=

 

3

3

=227

Determine maximum deviation from average voltage. (AB) 227 – 224 = 3 v

(BC) 231 – 227 = 4 v (AC) 227 – 226 = 1 v Maximum deviation is 4 v.

Determine percent of voltage imbalance.

 

4

% Voltage Imbalance

= 100 x

 

 

227

= 1.76%

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.

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Carrier appendix Electrical Data 38AUZ*07-14 Hz Units

38AUZ specifications

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