Carrier 48NLT - Manual (Page 9)

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