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Table 4 — Electrical Data
UNIT
38AQS
NOMINAL VOLTAGE
(V-Ph-Hz)
VOLTAGE RANGE
COMPRESSOR
OFM
POWER SUPPLY
MINIMUM DISCONNECT
Min
Max
RLA
LRA
FLA
MCA
MAX FUSE OR
HACR BRKR AMPS
FLA
LRA
008
208/230-3-60
187
254
31.5
160
3.1
42.5
50
45
177
460-3-60
414
508
15.7
80
1.4
21.0
25
25
89
220-3-50
198
242
39.7
198
3.1
52.7
70
55
205
400-3-50
360
440
19.9
99
1.4
26.3
35
30
106
LEGEND
FLA
—
Full Load Amps
HACR —
Heating, Air Conditioning and Refrigeration
LRA
—
Locked Rotor Amps
MCA
—
Minimum Circuit Amps
NEC
—
National Electrical Code (U.S.A.)
OFM
—
Outdoor Fan Motor
RLA
—
Rated Load Amps
(60 Hz Only)
(60 Hz Only)
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.
2.
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 voltage imbalance.
max voltage deviation from average voltage
= 100 x
average voltage
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average Voltage =
3
1371
=
3
=
457
(AB) 457
⫺
452 = 5 v
(BC) 464
⫺
457 = 7 v
(AC) 457
⫺
455 = 2 v
Maximum deviation is 7 v.
Determine percent voltage imbalance
7
% Voltage Imbalance = 100
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.
7