Carrier 38AK024-044 - Manual (Page 5)

Power Supply — Electrical characteristics of available
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.
GENERAL WIRING NOTES
1. A crankcase 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 energtedfor 24 hours before start-up. If unit
is to be shut down for a prolonged period it is recommended
that the suction arid 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 COMPRESSOR FAN MOTORS!
MODEL
OfiAtr Volts SuDolied*
MCA MOCP ICF RLA LRA FLA (ea) Qty
3 Ph, 60 Hz Min. Max. (Fuse)
500 208/230 187 254 92.1 150 348.6 68 345 3.6 2
024
200 380 342 418 51 1 80 194.9 346 191 3.9 2
600 460 414 508 46.9 80 1748 34 7 173 1 8 2
100 575 518 632 42.9 70 123.4 28.9 120 3.4 2
500 208/230 187 254 124.6 200 452.2 89.8 446 6.2 2
028
200 380 342 418 64.7 110 250.9 45.5 247 3.9 2
600 460 414 508 60 7 100 226.1 43.6 223 31 2
100 575 518 632 52.5 80 167.4 36.5 164 3.4 2
500 208/230 187 254 145 5 250 512.2 106.5 506 6.2 2
034
200 380 342 418 72.5 125 283.9 52.6 280 3.9 2
600 460 414 508 687 110 256.1 50 253 3.1 2
100 575 518 632 54.9 90 179.4 38.5 176 3.4 2
500 230 187 254 2030 350 702.4 147 5 690 62 3
044
200 380 342 418 111 1 175 3898 79.5 382 39 3
600 460 414 508 91 0 150 351 2 65.4 345 3.1 3
100 575 518 632 81.5 125 282.8 57.1 276 3.4 3
50 HERTZ
UNIT COMPRESSOR FAN MOTORS!
MODEL
38AK
Volts Supplied*
MCA
MOCP
ICF RLA LRA FLA (ea) Qty
3 Ph, 50 Hz Min. Max. (Fuse)
800 230 198 254 88.1 125 256.4 60.3 250 6.4 2
024 300 346 311 380 50.5 80 2044 333 200 44 2
900 400 342 400 49.3 80 1740 347 173 1.0 2
800 230 198 254 109 175 348.4 76.9 342 64 2
028 300 346 311 380 64.9 100 263.4 44.9 259 4.4 2
900 400 342 400 605 100 226.0 436 223 30 2
800 230 198 254 1202 200 372.4 859 366 6.4 2
034 300 346 311 380 76.1 125 2984 539 294 4.4 2
900 400 342 400 68.5 110 2560 50.0 253 3.0 2
800 230 198 254 1506 250 5578 105.1 545 6.4 3
044 300 346 311 380 112.6 175 408.8 79.5 400 4.4 3
900 400 342 400 90.8 150 351 0 65.4 345 30 3
FLA — Full Load Amps
ICF — Maximum Instantaneous Current Flow during starting (the
point in the starting sequence where the sum of the LRAfor
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
t All fans are protected by a single circuit breaker.