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Table 5 — Electrical Data — 38AUZ*07-14 60 Hz Units
LEGEND
UNIT
SIZE
38AU
FACTORY-
INSTALLED
OPTION
NOMINAL
VOLTAGE
VOLTAGE
RANGE*
COMPRESSOR
FAN MOTORS
(Qty 2)
POWER
SUPPLY
V-Ph-Hz MIN MAX RLA LRA FLA (ea) LRA (ea) MCA MOCP
Z*07
NONE OR DISCONNECT
CONVENIENCE OUTLET
208/230-3-60 187 253 19 123 1.5 3.7 25.2 45
NONE OR DISCONNECT
CONVENIENCE OUTLET
460-3-60 414 506 9.7 62 0.8 1.9 12.9 20
NONE OR DISCONNECT
CONVENIENCE OUTLET
575-3-60 518 633 7.4 50 0.6 1.6 9.9 15
Z*08
NONE OR DISCONNECT
CONVENIENCE OUTLET
208/230-3-60 187 253 25 164 1.5 3.7 32.7 50
NONE OR DISCONNECT
CONVENIENCE OUTLET
460-3-60 414 506 12.2 100 0.8 1.9 16.0 25
NONE OR DISCONNECT
CONVENIENCE OUTLET
575-3-60 518 633 9.0 78 0.6 1.6 11.8 20
Z*12
NONE OR DISCONNECT
CONVENIENCE OUTLET
208/230-3-60 187 253 30.1 225 1.5 3.7 39.1 60
NONE OR DISCONNECT
CONVENIENCE OUTLET
460-3-60 414 506 16.7 114 0.8 1.9 21.7 30
NONE OR DISCONNECT
CONVENIENCE OUTLET
575-3-60 518 633 12.2 80 0.6 1.6 15.8 25
Z*14
NONE OR DISCONNECT
CONVENIENCE OUTLET
208/230-3-60 187 253 48.1 245 1.5 3.7 61.6 80
NONE OR DISCONNECT
CONVENIENCE OUTLET
460-3-60 414 506 18.6 125 0.8 1.9 24.0 30
NONE OR DISCONNECT
CONVENIENCE OUTLET
575-3-60 518 633 14.7 100 0.6 1.6 19.0 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 230-3-60
AB =224 v
BC = 231 v
AC = 226 v
Average Voltage =
(224 +231 + 226)
=
681
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.
%VoltageImbalance =100 x
4
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.
% Voltage Imbalance =100 x
max voltage deviation from averagevoltage
averagevoltage