Carrier 38AK024-044 - Power Supply; Power Wiring

Power Supply — Electrical characteristics of available GENERAL WIRING NOTES
power supply must agree with unit nameplate rating. Supply
voltage must be within limits shown in Table 3.
IMPORTANT: Operating unit on improper supply
voltage, or with excessive phase imbalance, constitutes
abuse and may affect Carrier warranty. See Unbal-
anced 3-Phase Supply Voltage, page 6.
Power Wiring — All power wiring must comply with
applicable local and national codes. Install field-supplied
branch circuit fused disconnect(s) per NEC (National Electri-
cal Code) of a type that can be locked OFF or OPEN.
Disconnect(s) must be within sight from and readily acces-
sible from unit in compliance with NEC Article 440-14.
1. Acrankcase heater is wired in the control circuit so it is
always operable as long as power supply disconnect is
on, even if any safety device is open or unit stop-start
switch is off. It is protected by a 5-amp circuit breaker in
control power.
2. The power circuit field supply disconnect should never be
open except when unit is being serviced or is to be down for a
prolonged period. When operation is resumed, crankcase
heater should be energized for 24 hours before start-up. If unit
is to be shut down for a prolonged period, it is recommended
that the suction and discharge valves be closed to prevent an
excessive accumulation of refrigerant in the compressor oil
3. Power entry is at one end only.
Table 3 — Electrical Data
60 HERTZ
UNIT
MODEL
208/230 187 254 92.1
200 380 342 418 511
600 460 414 508 46.9
100 575 518 632 42.9
024
500 | 208/230 187 | 254
200 380 | 342 | 418
028 | 600 460 414 | 508
100 5/5 | 518 | 632
500 208/230 187 254
200 380 342 418
600 460 414 508
100 575 518 632
500 230 187 254
200 380 342 418
414 508
518 632
044
UNIT
800 230 198 254 88.1 125
900 400 342 400 49.3
800 230 198 254 109 175
300 346 311 380 64.9 100
900 400 342 400 605 100
800 230 198 254 1202 200
300 346 311 380 76.1 125
900 400 342 400 68.5 110
800 230 198 254 1506 250
300 346 311 380 112.6 175
900 400 342 400 90.8 150
FLA — Full Load Amps
ICF — Maximum Instantaneous Current Flow during starting (the
pointin the starting sequence where the sum of the LRA for
the starting compressor, plus the total RLA for all running
compressors, plus the total FLA for all running fan motors
is maximum).
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps (complies with National Electrical
Code [NEC], Section 430-24)
MOCP — Maximum Overcurrent Protection
RLA — Rated Load Amps
* Units are suitable for use on electrical systems where voltage
supplied to unit terminals is not below or above listed minimum and
maximum limits
1 All fans are protected by a single circuit breaker.
m= = Тш M
3 Ph, 60 Hz | Min. Max. |
“Supplied ]
3 Ph Hz in te Max | MCA (Fuse) | СЕ | RLA | LRA [FLA (ea)
64
300 346 311 380 50.5 80 2044 333 200 44
COMPRESSOR
[m um
68
256.4 60.3 250
1740 347 173 1.0
348.4 76.9 342
263.4 44.9 259
226.0 436 223
372.4 859 366 .
2984 539 294 44
2560 50.0 253
5578 105.1 545
408.8 79.5 400
3510 65.4 345
ECG YE 7 жс