Electrical data
UNIT
48SS
V-PH-HZ
VOLTAGE
RANGE
COMPRESSOR
COND
FAN
MOTOR
INDOOR
FAN
POWER SUPPLY
AWG60C
MIN WIRE
SIZE†
MAX WIRE
LENGTH
(ft)
Min Max RLA LRA FLA FLA MCA MOCP*
018 208/230-1-60 187 253 7.6 45 0.7 1.8 12.0 15 14 75
024 208/230-1-60 187 253 12.4 61 0.7 2.0 18.2 30 12 80
030
208/230-1-60 187 253 14.4 82 1.4 2.0 21.8 30 10 100
208/230-3-60 187 253 9.4 66 1.4 2.0 15.5 25 12 80
036
208/230-1-60 187 253 18.0 96 1.4 2.8 26.7 40 10 90
208/230-3-60 187 253 11.7 75 1.4 2.8 18.8 30 12 65
460-3-60 414 506 5.6 40 0.8 1.4 9.2 10 14 100
042
208/230-1-60 187 253 20.4 104 1.4 4.0 30.9 50 8 100
208/230-3-60 187 253 14.0 91 1.4 4.0 22.9 35 10 85
460-3-60 414 506 6.4 42 0.8 2.0 10.8 15 14 100
048
208/230-1-60 187 253 26.4 129 2.1 5.0 40.1 60 6 100
208/230-3-60 187 253 15.0 99 2.1 5.0 25.9 40 10 75
460-3-60 414 506 8.2 50 1.1 2.3 13.7 20 14 100
060
208/230-1-60 187 253 32.1 169 2.1 6.8 49.0 60 6 100
208/230-3-60 187 253 19.3 123 2.1 6.8 33.0 50 8 90
460-3-60 414 506 10.0 62 1.1 3.2 16.8 25 12 100
LEGEND
AWG — American Wire Gage
CSA — CanadianStandards Association
FLA — Full Load Amps
HACR — Heating, Air Conditioning and
Refrigeration
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
(fuses or HACR-type circuit breaker)
NEC — National Electrical Code
RLA — Rated Load Amps
*Fuse or HACR breaker.
†Minimum wire size is based on 60 C copper wire. If other than 60 C if
used, determine size from NEC. Voltage drop of wire must be less than
2% of rated voltage.
NOTES:
1. In compliance with NEC requirements for multimotor and combina-
tion load equipment (refer to NEC Articles 430 and 440), the over-
current protective device for the unit shall be fuse or HACR breaker.
The CSA units may 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-
age of voltage imbalance.
% Voltage Imbalance
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.
7
% Voltage Imbalance = 100 x
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%, contact your local electric utility company immediately.
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