Table 3 — electrical data – Carrier 48NLT User Manual
Page 9
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Table 3 — Electrical Data
UNIT
SIZE
NOMINAL
V-PH-HZ
MODEL NO.
48
VOLTAGE
RANGE
COMPR
CONDENSER-
FAN MOTOR
EVAPORATOR-
FAN MOTOR
AWG MIN
WIRE SIZE
POWER SUPPLY
Min
Max
RLA
LRA
FLA
FLA
MCA
MOCP
01B
208/230-1-60
NLT018
187
253
82
49 0
08
2.5
14
13 6
20
024
208/230-1-60
NLT024
NHT024
187
253
11.6
11.6
61 0
61.0
08
2.5
12
17 1
25
030
208/230-1-60
NLT030
NMT030
NHT030
187
253
14.3
86.0
08
25
25
3.0
10
21 2
21.2
21 7
30
036
208/230-1-60
NLT036
NMT036
NET036
NHT036
NVT036
187
253
21 1
100 0
1 5
30
3.0
45
45
45
8
30.9
30 9
32.4
32 4
32.4
40
208/230-3-60
NLT036
NMT036
NET036
NHT036
NVT036
187
253
14.7
67.0
1 9
1.9
1.9
22
22
30
30
45
45
45
10
23.3
23 3
24 8
25 1
25 1
30
460-3-60
NLT036
NMT036
NET036
NHT036
NVT036
414
506
7 1
34 0
1.2
1 5
1 5
23
23
23
14
11 6
11 6
124
124
12.4
15
042
208/230-1-60
NLT042
NMT042
NET042
NHT042
NVT042
187
253
23.9
95.4
1 5
3.0
3.0
45
45
4.5
8
34 3
34 3
35 9
35.9
35 9
50
208/230-3-60
NLT042
NMT042
NET042
NHT042
NVT042
187
253
15.3
82 0
1.9
1 9
1 9
2.2
2.2
30
3.0
45
4.5
4.5
10
24 0
24.0
25 5
25.8
25 8
35
35
40
40
40
460-3-60
NLT042
NMT042
NET042
NHT042
NVT042
414
506
77
41 0
1 2
1 5
1 5
23
23
2.3
14
123
12.3
13 1
13.1
13 1
20
048
208/230-1-60
NLT048
NMT048
NHT048
NVT048
187
253
26 5
1140
2.1
4.5
45
4.5
8
39 7
39 7
39.7
60
62
6
41 4
208/230-3-60
NLT048
NMT048
NHT048
NVT048
187
253
16.8
84 0
22
45
45
4.5
62
10
27.7
27 7
27 7
29 4
40
460-3-60
NLT048
NMT048
NHT048
NVT048
187
253
82
42 0
1 2
23
23
2.3
32
14
13.8
138
138
147
20
060
208/230-1-60
NLT060
NMT060
NHT060
NVT060
187
253
30 7
135 0
2 1
62
6
46 7
60
208/230-3-60
NLT060
NMT060
NHT060
NVT060
187
253
21 4
130 0
22
6.2
8
35 5
50
460-3-60
NLT060
NMT060
NHT060
NVT060
414
506
104
55 0
1 2
32
12
17.4
25
AWG
FLA
LRA
MCA
MOCP
NEC
RLA
NOTES:
1
American Wire Gage
Full Load Amps
Locked Rotor Amps
Minimum Circuit Amps
Maximum Overcurrent Protection
National Electrical Code
Rated Load Amps
In compliance with NEC requirements for multimotor and combination load
and equipment (refer to NEC Articles 430 and 440), the overcurrent pro
tective device for the unit shall be fuse or HACR 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 % voltage imbalance.
% Voltage Imbalance
_ y max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60
AB = 452 volts
Determine maximum deviation from average voltage.
(AB) 457 - 452 =5 volts
(BC) 464 - 457 =7 volts
(AC) 457 - 455 =2 volts
Maximum deviation is 7 volts.
Determine % voltage imbalance
% Voltage Imbalance =100 x
7
"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
BC = 464 volts
AC = 455 volts
Average Voltage
452 + 464 -r 455
3
1371
—JT— =457