Table 2 — electrical data – Carrier 48LJD User Manual
Page 8
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Table 2 — Electrical Data
UNIT
NOMINAL
V-PH-HZ
IFM
TYPE
VOLTAGE
RANGE
COMPR
(each)
OFM
IFM
COMBUSTION
FAN MOTOR
POWER SUPPLY
DISCONNECT SIZE
Min
Max
RLA
LRA
FLA
FLA
FLA
MCA
MOCP*
FLA
LRA
48LJE/LJF004
(3 Tons)
208/230-1-60
Std
187
254
179
93
1 9
2.8
57
27 1/27 1
35/35
26/26
105/105
Alt
3.8
28.1/28 1
35/35
27/27
107/107
208/230-3-60
Std
187
254
11
2
80
1 9
28
.57
18 7/18.7
25/25
18/18
92/92
Alt
38
19 7/19.7
25/25
19/19
94/94
460-3-60
Std
414
508
6
1
40
1
0
1 5
30
101
15
10
46
Alt
1.9
105
15
10
46
575-3-60
Std
518
632
45
29
1 9
2.8
57
7.5
15
7
34
Alt
38
7.9
15
8
34
48LJD/LJE/LJF
005
(4 Tons)
208/230-1-60
Std
187
254
24 8
127
1 9
38
57
36 7/36.7
45/45
35/35
141/141
Alt
57
38.6/38 6
45/45
37/37
144/144
208/230-3-60
Std
187
254
157
99
1.9
3.8
57
25 3/25.3
30/30
25/25
113/113
Alt
5.7
27 2/27.2
35/35
27/27
116/116
460-3-60
Std
414
508
78
50
1
0
1 9
.30
126
15
12
56
Alt
2.8
13.5
20
13
58
575-3-60
Std
518
632
55
40
1.9
38
57
9.2
15
9
45
Alt
5.7
9.9
15
10
47
48LJD/LJE/LJF
006
(5 Tons)
230-1-60
Std
187
254
27.8
135
1 9
85
.57
45 2
60
44
164
208/230-3-60
187
254
19.2
105
1 9
8.5
.57
34.4/34.4
40/40
34/34
134/134
460-3-60
414
508
96
55
1
0
4.5
30
17.5
20
17
81
575-3-60
518
632
83
45
1 9
85
.57
14.5
20
14
57
48LJD/LJE/LJF
007
(6 Tons)
208/230-3-60
Std
187
254
21 9
142
1 9
5.8
57
35.1/35.1
40/40
34/34
188/188
460-3-60
414
508
104
72
1
0
2.6
30
16.6
20
16
95
575-3-60
518
632
96
58 5
1 9
11
0
57
172
20
17
81
IMPORTANT: Optional, alternate evaporator-fan motor and drive are not
available for 48LJ006,007 units. Contact your local Carrier representative
for more information about field-installed motors
LEGEND
Compressor
Full Load Amps
Heating, Air Conditioning and Refrigeration
Indoor (Evaporator) Fan Motor
Locked Rotor Amps
Minimum Circuit Amps
Maximum Overcurrent Protection
Outdoor (Condenser) Fan Motor
Rated Load Amps
COMPR
FLA
HACR
IFM
LRA
MCA
MOCP
OFM
RLA
*Fuse or HACR circuit breaker
NOTES:
1. In compliance with NEC (National Electrical Code) requirements for multi
motor and combination load equipment (refer to NEC Articles 430 and 440),
the overcurrent protective device for the unit shali be fuse or HACR breaker
Canadian Standards Association (CSA) units may be fuse or circuit breaker
2 Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalanoe in supply voltage is greater
than 2% Use the following formula to determine the percent voltage im
balance.
% Voltage Imbalance
max voltage deviation from average voltage
Example: Supply voltage is 460-3-60.
AB = 452V
ABC
BC = 464v
AC = 455V
Average Voltage
452 4- 464 4- 455
_ 1371
3
= 457
NOTE: The 575-v units are CSA only
Determine maximum deviation from average voltage
(AB) 457 - 452 = 5
V
(BC) 464 - 457 = 7
V
(AC) 457 - 455 = 2
V
Maximum deviation is 7 v.
Determine % voltage imbalance
7
% Voltage Imbalance = 100 x -----------
457
= 1 53%
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%
IMPORTANT: If the supply voltage phase imbalance is more than 2%,
contact your local electric utility company immediately
100
X
average voltage