Electrical Data - Carrier 50SS018-060 Installation, Start-Up And Service Instructions Manual

UNIT SIZE
V-PH-Hz
50SS
018 208/230-1-60
024 208/230-1-60
208/230-1-60
030
208/230-3-60
208/230-1-60
036 208/230-3-60
460-3-60
208/230-1-60
042 208/230-3-60
460-3-60
208/230-1-60†
208/230-1-60**
208/230-3-60†
048
208/230-3-60**
460-3-60†
460-3-60**
208/230-1-60†
208/230-1-60**
208/230-3-60†
060
208/230-3-60**
460-3-60†
460-3-60**
LEGEND
AWG — American Wire Gage
BRKR — Breaker
CUL — Canadian Underwriters' Laboratories
FLA — Full Load Amps
HACR — Heating, Air Conditioning and
Refrigeration
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP — Maximum Overcurrent Protection
NEC — National Electrical Code
RLA — Rated Load Amps
*Fuse or HACR Breaker.
†Carrier Scroll Compressor.
**Copeland Scroll Compressor.
NOTES:
1. In compliance with NEC requirements for multimotor and combi-
nation load equipment (refer to NEC Articles 430 and 440), the
overcurrent protective device for the unit shall be fuse or HACR
breaker. The CUL 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 length 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 percentage of voltage imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
Table 4A — Electrical Data — 50SS Units
VOLTAGE RANGE COMPRESSOR
Min Max RLA
187 253 8.3
187 253 12.4
187 253 14.4
187 253 9.4
187 253 18.0
187 253 11.7
414 506 5.6
187 253 20.4
187 253 14.0
414 506 6.4
187 253 21.8
187 253 26.4
187 253 12.8
187 253 15.0
414 506 16.0
414 506 19.3
187 253 28.9
187 253 32.1
187 253 6.4
187 253 8.2
414 506 8.0
414 506 10.0
average voltage
OUTDOOR- INDOOR-
FAN FAN
MOTOR MOTOR
LRA FLA FLA
45.0 0.7 1.8
61.0 0.7 2.0
82.0 1.4 2.3
65.5 1.4 2.3
96.0 1.4 2.8
75.0 1.4 2.8
40.0 0.8 1.4
104.0 1.4 4.0
91.0 1.4 4.0
42.0 0.8 2.0
124.0 2.1 5.0
129.0 2.1 5.0
93.0 2.1 5.0
99.0 2.1 5.0
125.0 2.1 6.8
123.0 2.1 6.8
165.0 2.1 6.8
169.0 2.1 6.8
46.5 1.1 2.3
49.5 1.1 2.3
66.5 1.1 3.2
62.0 1.1 3.2
EXAMPLE: Supply voltage is 460-3-60.
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
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.
22
AWG 60C
POWER SUPPLY
MIN WIRE
SIZE
MCA MOCP*
12.0 15 14
18.2 30 12
21.8 30 10
15.5 25 12
26.7 40 10
18.8 30 12
9.2 10 14
30.9 50 8
22.9 35 10
10.8 15 14
40.1 60 6
40.1 60 6
23.1 35 10
25.9 40 10
33.0 40 8
33.0 50 8
49.0 60 6
49.0 60 6
11.4 15 14
13.7 20 14
16.8 20 12
16.8 25 12
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
= 457
7
457
= 1.53%
MAX WIRE
LENGTH (ft)
75
80
100
80
90
65
100
100
85
100
100
100
75
75
90
90
100
100
100
100
100
100