Carrier 48LJE004 Installation, Start-Up And Service Instructions Manual page 8

Table 2 — Electrical Data
UNIT
NOMINAL
V-PH-HZ
IFM
TYPE
VOLTAGE
RANGE
COMPR
(each)
OFM IFM
COMBUSTION
FAN MOTOR
POWER SUPPLY DISCONNECT SIZE
■Ml
msnm IH23
W3WM FLA
MCA MOCP* FLA LRA
48LJE/LJF004
(3 Tons)
208/230-1 -60
Std
187 254 179
93 1 9
mm
57
27 1/27 1 35/35 26/26 105/105
Alt 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
COMPR
FLA
HACR
IFM
LRA
MCA
MOCP
OFM
RLA
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
'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 shall 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 imbalance in supply voltage is greater
than 2%
Use the following formula to determine the percent voltage im¬
balance.
% Voltage Imbalance
= 100 x
max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464v
AC = 455 v
452 + 464 + 455
Average Voltage --
_ 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
8