Carrier 38AUQ Manuel d'utilisateur télécharger pdf (Page 14)

Table 8 — Electrical Data — 38AUQ*07-12 60 Hz Units

LEGEND

UNIT

SIZE

38AUQ

FACTORY-

INSTALLED

OPTION

NOMINAL

VOLTAGE

RANGE

‡

COMPRESSOR FAN MOTORS

POWER

SUPPLY

V-Ph-Hz MIN MAX RLA LRA FLA (ea) QTY MCA MOCP

*07

NONE OR DISCONNECT

208/230-3-60 187 253 19.0 123 1.5 2

26.8 45

CONVENIENCE OUTLET 31.6 50

NONE OR DISCONNECT

460-3-60 414 506 9.7 62 0.9 2

13.9 20

CONVENIENCE OUTLET 16.1 25

NONE OR DISCONNECT

575-3-60 518 633 7.4 50 0.6 2

10.5 15

CONVENIENCE OUTLET 12.2 15

*08

NONE OR DISCONNECT

208/230-3-60 187 253 25.0 164 1.5 2

34.3 50

CONVENIENCE OUTLET 39.1 60

NONE OR DISCONNECT

460-3-60 414 506 12.2 100 0.9 2

17.1 25

CONVENIENCE OUTLET 19.3 30

NONE OR DISCONNECT

575-3-60 518 633 9.0 78 0.6 2

12.5 20

CONVENIENCE OUTLET 14.2 20

*12

NONE OR DISCONNECT

208/230-3-60 187 253 30.1 225 1.5 2

40.6 60

CONVENIENCE OUTLET 45.4 60

NONE OR DISCONNECT

460-3-60 414 506 16.7 114 0.8 2

22.5 30

CONVENIENCE OUTLET 24.7 30

NONE OR DISCONNECT

575-3-60 518 633 12.2 80 0.6 2

16.5 25

CONVENIENCE OUTLET 18.2 30

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.

Example: Supply voltage is 208/230-3-60

AB = 224 v

BC = 231 v

AC = 226 v

Average Voltage =

(224 + 231 + 226)

681

=227

Determine maximum deviation from average voltage.

(AB) 227 – 224 = 3 v

(BC) 231 – 227 = 4 v

(AC)227–226=1v

Maximum deviation is 4 v.

Determine percent of voltage imbalance.

% 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.

%VoltageImbalance =100x

max voltage deviation from average voltage

average voltage

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 35 36

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Carrier 38AUQ Manuel d'utilisateur Page 14

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