—
7
—
Table 4 — Electrical Data
LEGEND
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 Canadian 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
of voltage imbalance.
% of Voltage Imbalance =
EXAMPLE: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
(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:
This amount of phase imbalance is satisfactory as it is below the maxi-
mum allowable 2%.
IMPORTANT:
If the supply voltage phase imbalance is more than 2%,
contact your local electric utility company immediately.
3. The 575-v units are CSA only.
4. The 380-v units are
not
UL or CSA listed.
UNIT
NOMINAL VOLTAGE
(V-Ph-Hz)
VOLTAGE RANGE COMPRESSOR OFM POWER SUPPLY
Min Max RLA LRA FLA MCA MOCP
569C072
208/230-3-60 187 254 21.8 158 1.9 30.1 40
460-3-60 414 508 10.0 79 1.0 13.5 20
575-3-60 518 632 9.0 65 1.9 14.1 20
569C090
208/230-3-60 187 254 28.8 195 3.8 39.8 50
460-3-60 414 508 14.7 95 1.9 20.3 25
575-3-60 518 632 10.8 80 1.9 15.4 20
569C120
208/230-3-60 187 254 37.8 239 3.1 51.1 70
460-3-60 414 508 17.2 125 1.4 23.4 30
575-3-60 518 632 14.3 90 1.4 19.8 25
576B090
208/230-3-60 187 254 31.5 160 3.1 42.5 50
380-3-60 342 418 19.0 75 2.2 26.0 35
460-3-60 414 508 15.7 80 1.4 21.0 25
575-3-60 518 632 12.6 64 1.4 17.2 20
576B102
208/230-3-60 187 254 39.7 198 3.1 52.7 70
380-3-60 342 418 24.0 93 2.2 32.2 40
460-3-60 414 508 19.9 99 1.4 26.3 35
575-3-60 518 632 15.9 79 1.4 21.3 25
576B120
208/230-3-60 187 254 39.7 198 3.1 52.7 70
380-3-60 342 418 24.0 93 2.2 32.2 40
460-3-60 414 508 19.9 99 1.4 26.3 35
575-3-60 518 632 15.9 79 1.4 21.3 25
CSA —
Canadian Standards Association
FLA —
Full Load Amps
HACR —
Heating, Air Conditioning and Refrigeration
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
UL —
Underwriters’ Laboratories
100 x
max voltage deviation from average voltage
average voltage
Average Voltage =
452 + 464 + 455
3
=
1371
3
= 457
% Voltage Imbalance = 100 x
7
457
= 1.53%
