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Installation Electrical
Table 12. Compressor motor electrical data (50 Hz) —
standard units (wye-delta starter)
Compressor
Voltage
(a)
(b)
Code
Max kW
380
B1, B2
400
415
380
C1, C2
400
415
380
D1, D2, D3
400
415
380
E3
400
415
(a) Unit model number digits 6 & 7.
(b) Voltage utilization ranges: 380V (342-418), 400V (360-440), 415V
(374-457).
(c) The RLA @ Max k@ is based on the performance of the motor developing
full rated horsepower.
Electrical Data Table Information
Compressor motor electrical data is provided in
p. 39
and
Table 12
for each compressor size. Rated load
amperes (RLA), locked rotor wye amperes (LRA) and
expected inrush for the Wye-delta configurations are
shown.
Although the terms "LRA" and "expected inrush" are
often used interchangeably, the distinction applied here is
that LRA is the rated inrush for the motor, but expected
inrush is that allowed by the starter, based on the specific
configuration. Selecting starters in the Wye-delta
configuration lowers expected inrush vs. the Delta (or
"across-the- line") configuration.
The RLA is based on the motor's performance when
reaching full rated horsepower. The kW rating of the motor
will equal or exceed the kW requirement indicated by the
TOPSS™ selection program at design conditions. If motor
kW draw at design conditions is less than the kW rating of
the motor, the RLA at design conditions is determined by
multiplying the motor RLA (at the desired voltage) by this
ratio: design kW/ motor kW rating. This calculation is
performed within the computer selection program,
making RLA available as part of the design predictions.
Predicted values include power factor variation from point
to point.
Optimus™ chillers are designed to operate satisfactorily
over a utilization range of ±10 percent of the standard
design voltages: (a) 200V, 230V, 380V, 460V, and 575V for
60 Hertz, 3- phase, and (b) 380V, 400V, 415V for 50 Hertz,
3-phase.
40
RLA @
Max
LRA
LRA
(c)
kW
(Wye)
(Delta)
139
233
391
1229
145
233
412
1296
148
233
428
1348
201
349
456
1414
209
349
480
1488
213
349
498
1544
271
455
711
2303
280
455
748
2424
284
455
776
2515
288
488
711
2303
301
488
748
2424
306
488
776
2515
Table 11,
Units with AFD Option
Table 13. Electrical data — units with AFD
Applied Range
(Model Number
Voltage
digits 56-58)
0 - 126
127 - 150
151 - 185
575V 60 Hz
186 - 234
235 - 279
280 - 316
317 - 366
0 - 176
177 - 223
224 - 280
460V 60 Hz
281 - 335
336 - 411
412 - 455
0 - 197
198 - 241
242 - 292
380V 60 Hz
293 - 367
368 - 446
447 - 549
0 - 197
198 - 241
380V 50 Hz
242 - 292
400V 50 Hz
293 - 367
415V 50 Hz
368 - 446
447 - 549
Note: AFD input amps are shown in the RLA field of the unit nameplate.
Installer-Supplied Components
Customer wiring interface connections are shown in the
electrical schematics and connection diagrams that are
shipped with the unit. The installer must provide the
following components if not ordered with the unit:
•
Power supply wiring (in conduit) for all field-wired
connections.
•
All control (interconnecting) wiring (in conduit) for
field supplied devices.
•
Fused-disconnect switches or circuit breakers.
Estimated Power
Loss (W)
1739
2099
2646
3071
3719
4460
5023
2257
2719
3622
3561
4558
5703
2555
2949
3764
4109
5129
6663
2555
2949
3764
4109
5129
6663
RTHD-SVX01K-EN
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