Table 3 — electrical data – Carrier 38AH024-034 User Manual
Page 8
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Table 3 — Electrical Data
60 HERTZ
UNIT
COMPRESSOR
FAN MOTORSt
UNIT 38AH
Volts
Supplied*
MCA
MOCP
ICF
RLA
LRA
Qty
FLA
Hp
3 Ph, 60 Hz
Min
Max
(Fuse)
Ckt 1
Ckt 2
Cktl
Ckt 2
(ea)
500
208/230
187
254
100 8
125
408.4
39.3
39.3
198
198
2
6.2
024
200
380
342
418
61 8
80
193.8
24 0
24.0
93
93
2
39
1
600
460
414
508
50.3
60
204.2
196
196
99
99
2
3 1
too
575
518
632
42 1
50
168.4
15.7
157
79
79
2
3.4
500
208/230
187
254
110.5
150
468.4
43.6
43 6
228
228
2
62
028
200
380
342
418
67.2
90
215 8
26 4
26 4
104
104
2
39
1
600
460
414
508
55.9
70
234 2
22 1
22 1
114
114
2
3 1
100
575
518
632
47.1
60
188.8
19.7
19 7
91
91
2
3.4
500
208/230
187
254
135 5
175
506.4
43.6
63.6
228
266
2
62
034
200
380
342
418
77.0
110
256 8
26.4
34 3
104
145
2
39
1
600
460
414
508
65.8
90
340.2
22.1
30.0
114
120
2
3.1
100
575
518
632
53 3
70
193.8
17.9
22 9
91
36
2
34
50 HERTZ
UNIT 38AH
UNIT
COMPRESSOR
FAN MOTORSt
Volts
3 Ph, 50 Hz
Supplied*
MCA
MOCP
(Fuse)
ICF
RLA
LRA
Qty
FLA
(ea)
Hp
Min
Max
Ckt 1
Ckt 2
Ckt 1
Ckt 2
800
230
198
254
101 2
125
268.8
39.3
39.3
128
128
2
6.4
024
300
346
311
380
62.8
80
194.8
24 0
24.0
93
93
2
44
1
900
400
342
400
46.5
60
204 0
180
18.0
99
99
2
3.0
800
230
198
254
1109
150
298 8
43.6
43.6
143
143
2
64
028
300
346
311
380
68.2
90
216.8
26.4
26.4
104
104
2
44
1
900
400
342
400
55.7
70
234 0
22 1
22 1
114
114
2
30
800
230
198
254
135.9
175
355 8
43.6
63 6
143
200
2
6.4
034
300
346
311
380
78 1
110
257.8
26.4
34.3
104
145
2
4.4
1
900
400
342
400
65.1
90
240 0
22 1
30 0
114
120
2
30
LEGEND
FLA
— Full Load Amps
IGF — Maximum Instantaneous Current Flow during starting (the
point in the starting sequence where the sum of the LRA for
the starting compressor, plus the total RLA for all running com
pressors, 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) (U.S.A Standard)
MOCP
— Maximum Overcurrent Protection
RLA
— Rated Load Amps
’Units are suitable for use on electrical systems where volt
age supplied to unit terminals is not below or above listed
minimum and maximum limits
tAII fans are protected by a single circuit breaker.
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 voltage imbalance:
% Voltage Imbalance
— 100 max voltage deviation from average voltage
average voltage
Example: Supply voltage is 240-3-60.
AB = 243 V
BC =236
V
AC =238
V
Average Voltage =
243 -F236 -F238
Determine maximum deviation from average voltage:
(AB) 243 -239 =4
V
(BC) 239 -236 =3 V
(AC) 239 - 238 = 1 V
Maximum deviation is 4 v.
Determine percent voltage imbalance:
4
% Voltage Imbalance = 100 x
239
■
1
.
1
%
= 239
V
This amount of phase imbalance is satisfactory as it is
below the maximum allowable 2%.
IMPORTANT: Contact your local electric utility com
pany immediately if the supply voltage phase imbal
ance is more than 2%.