Carrier 48SX024-048 - Manual (Page 20)

Table 4 — Electrical Data
UNIT
48SS
V-PH-HZ
VOLTAGE
COMPRESSOR
COND
FAN
INDOOR
POWER SUPPLY AWG 60 C MAX WIRE
RANGE
MOTOR
FAN
FLA
MIN WIRE
SIZE
LENGTH
(ft)
Min Max RLA LRA FLA MCA MOCP*
018 7.6 45.0 07 1 8 12.0 15 14 75
024 12.4 61.0 07 20 18.2 30 12 80
030 14.4 82.0 1 4 2.0 21.8 30 10 100
036 208/230-1-60 187 253 18.0 96.0 1 4 2.8 26 7 40 10 90
042 20.4 104 0 1.4 4.0 30.9 50 8 100
048 26.4 129 0 2.1 5.0 40.1 60 6 100
060 32.1 169 0 2.1 6.8 49.0 60 6 100
030 9.4 66 0 1.4 2.0 15.5 25 12 80
036 11 7 75.0 1.4 2.8 18.8 30 12 65
042 208/230-3-60 187 253 140 91 0 1.4 4.0 22.9 35 10 85
048 150 99 0 2.1 5.0 25.9 40 10 75
060 193 123.0 2.1 6.8 33.0 50 8 90
036 56 40 0 0.8 1.4 9.2 10 14 100
042
048
460-3-60 414 506
64
8.2
42 0
50 0 08
1.1
20
2.3
108
13.7
15
20 14
14 100
100
060 100 62 0 1.1 32 16.8 25 12 100
i
UNIT
48SX
024
030
036
042
048
208/230-1-60 187 253
12 9
150
16.7
20.0
26.4
62.5
76.0
95.0
104.0
129.0
1.4
1.4
1.4
1 4
1.4 2.0
2.6
2.8
3.1
5.0
19.5
22 8
25 1
29.5
39.4
30
30
30
45
60 12
10
10
10
8
75
100
95
80
90
036 10.9 75.0 1.4 2.8 17.8 25 12 70
042 208/230-3-60 187 253 13.9 88.0 1.4 3 1 21.9 30 10 60
048 15.0 99.0 1 4 50 25.2 40 10 80
036 5.4 40.0 0.8 1.4 9.0 10 14 100
042 460-3-60 414 506 6.8 44.0 0.8 1.6 10.9 15 14 100
048 8.2 49 5 0.8 2.3 134 20 14 100
LEGEND
AWG — American Wire Gage
COND — Condenser
FLA — Fail Load Amps
HACR — Heating, Air Conditioning and Refrigeration
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
RLA — Rated Load Amps
‘Fuse or HACR breaker
NOTES:
1. in compliance with NEC (Nationai Electricai Code) requirements
for muitimotor and combination load equipment (refer to NEC
Articles 430 and 440), the overcurrent protective device for the
unit shall be fuse or HACR breaker. The CGA (Canadian Gas
Association) units may be fuse or circuit breaker
2. Minimum wire size is based on 60 C copper wire, if other than
60 C wire is used, or if iength exceeds wire length in table, de­
termine size from NEC.
3. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply volt­
age is greater than 2%. Use the following formula to determine
the percent of voltage imbalance.
% Veltage imbalance
^ .|QQj^ max voltage deviation from average voltage
average voltage
Example: Supply voltage is 460-3-60.
AB = 452 V
BC = 464 V
AC = 455 V
Average Voltage =
452 -H 464 -I- 455
3
1371
3
= 457
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 percent of voltage imbalance.
% 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.
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