User`s manual

UNIT
SBZE
48GX
O24
030
036
O42
O48
OGO
V-PN-NZ
208/230-1-80
208/230-1-60
208/230-3-80
208/230-1-60
208/230-3-80
460-3-60
208/230-1-80
208/230-3-80
460-3-80
208/230-1-60
208/230-3-80
480-3-60
208/230-1-80
208/230-3-60
460-3-80
VOLTAGE
RANGE
Tab{e 5--Electrical Data--Unit 48GX
COMPRESSOR
OUTDOOR FAN INDOOR FAN
MOTOR MOTOR
FLA
2.0
2.1
2.1
3.6
3.6
1.9
4.1
4.1
2.0
4.1
4.1
1.9
6.2
6.2
3.2
Max RLA
253 10.9
253 13.5
253 9.0
253 16.7
253 11.2
506 5.4
253 17.9
253 12.4
506 6.I
253 23.4
253 13.0
506 6.4
253 28.8
253 17.3
506 9.0
Min
187
187
187
187
187
414
187
187
414
187
187
414
187
187
414
LRA
54.0
73.0
63.0
97.0
75.0
37.5
104.0
88.0
44.0
126.0
93.0
46.5
169.0
123.0
62.0
FLA
0.9
0.8
0.8
0.8
0.8
0.9
1.6
1.8
0.9
1.5
1.5
0.9
1.6
1.8
0.9
POWER SUPPLY
Max Fuse or
MCA
Ckt Bkr
16.5 25
19.8 30
14.2 20
25.3 40
18.4 25
9.6 15
28.1 45
21.2 30
10.5 15
34.9 45
21.9 30
10.8 15
43.8 60
29.4 45
15.4 20
LEGEND Q
FLA -- Full Load Amps
LRA -- Locked RotorAmps C US
MCA -- Minimum CircuitAmps
MOCP -- Maximum Overcurrent Protection
RLA -- Rated Load Amps
CKT BKR -- Circuit Breaker
NOTES:
1. tn compliance with NEC (National Electrical Code) requirements
for multimotor and combination load equipment (refer to NEC
Articles 430 and 440), the overcurrent protective device for the
unit shall be Power Supply fuse. Canadian units may be
fuse or circuit breaker.
2. Minimum wire size is based on 60 C copper wire. tf other than
60 C wire is used, or if length exceeds wire length in table,
determine size from NEC.
3. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase int_balance in supply volt-
age is greater than 2%. Use the following formula to determine
the percentage of voltage imbalance.
% Voltage imbalance
= 100 x max voltage deviation fr
average voltage
EXAMPLE: Supply 'voltage is 460-3-60.
A B C AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
452 + 464 + 455
3
1371
3
= 457
Determine maximum deviation from average 'voltage.
(AB) 457 452=5v
(BC) 464 457=7v
(AC) 457 455=2v
Maximum deviation is 7 v.
Determine percent of 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%.
1
IMPORTANT: tf the suppty voltage phase imbalance is_
more than 2%, contact your local electric utility company I
immediately.
Tab{e 5--Legend
14