Справочник Пользователя для Carrier 38AQS008
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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
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-
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.
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%.
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
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
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%.
maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more
than
than
2%,
contact
your
local
electric
utility
company
immediately.
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