Carrier 48NLT - Page 9

Table 3 ~ Electrical Data
UNIT
SIZE
NOMINAL
V-PH-HZ
MODEL NO.
4B
VOLTAGE
RANGE
COMPR
CONDENSER-
FAN MOTOR
EVAPORATOR-
FAN MOTOR
AWG MIN
WIRE SIZE
POWER SUPPLY
Min Max RLA LRA
FLA
FLA
MCA
MOCP
018
208/230-1-60 NLT018 187 253 82
49 0
08
2.5
14
13 6 20
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 i 100 0 1 5
30
3.0
45
45
45
8
■
40
1
208/230-3-60
NLT036
NMT036
NET036
NHT036
NVT036
187
1 253
14.7 I 67.0
I
I
; 19
I
1 1.9
I 22
22
30
30
45
45
45
10
I 23.3
23 3
24 8
251
25 1
30
460-3-60
NLT036
NMT036
NET036
NHT036
NVT036
! 414
1 506 i 71
1
[
34 0
i
I
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
1
■
41 0
1 2
1 5
1 5
23
23
_2^3_
14
123
12.3
13 1
13.1
13 1
20
048
I
208/230-1-60
NLT048
NMT048
NHT048
NVT048
187
1
253 I 26 5 1140
2,1
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
I
22 I
I
45
45
4.5
62
10
KEB
40
460-3-60
NLT048
NMT048
NHT048
NVT048
187
253
82
1
42 0 1 2
23
23
2.3
32
14
13.8
13 8
138
147
20
060
208/230-1-60
NLT060
NMT060
NHT060
NVToeo
187 253
1
30 7 135 0
2 1
62
6
1
46 7
60
208/230-3-60
NLT060
NMT060
NHT060
NVT060
187
253
21 4 130 0 22
6.2
1
8 ;
35 5 50
460-3-60
NLT060
NMT060
NHT060
NVT060
414 506 10 4
55 0 1 2
32
12 17.4 25
r
AWG — American Wire Gage
FLA — Full Load Amps
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC ~ National Electrical Code
RLA - Rated Load Amps
NOTES:
1 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
2
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
_ inn V voltage deviation from average voltage
average voltage
Example; Supply voltage is 460-3-60
ABC
AB = 452 volts
BC = 464 volts
AC = 455 volts
Average Voltage
452 + 464 -I- 455
3
1371
3
= 457
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 —^ =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
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