8
Table 2—38HDR Electrical Data
38HDR
UNIT
SIZE
V --- P H --- H z
VOLTAGE
RANGE*
COMPRESSOR OUTDOOR FAN MOTOR
MIN
CKT
AMPS
FUSE/BKR
AMPS
RLA LRA FLA
NEC
Hp
kw
Out
Min Max
018 208/230---1--- 60 187 253 9.0 48.0 0.80 0.125 0.09 12.1 20
024 208/230---1--- 60 187 253 12.8 58.3 0.80 0.125 0.09 16.8 25
030 208/230---1--- 60 187 253 14.1 73.0 1.45 0.25 0.19 19.1 30
036
208/230--- 1 --- 60 187 253 14.1 77.0 1.45 0.25 0.19 19.1 30
208/230--- 3 --- 60 187 253 9.0 71.0 1.45 0.25 0.19 12.7 20
4 6 0 --- 3 --- 6 0 414 506 5.6 38.0 0.80 0.25 0.19 7.8 15
048
208/230--- 1 --- 60 187 253 21.8 117.0 1.45 0.25 0.19 28.7 50
208/230--- 3 --- 60 187 253 13.7 83.1 1.45 0.25 0.19 18.6 30
4 6 0 --- 3 --- 6 0 414 506 6.2 41.0 0.80 0.25 0.19 8.6 15
060
208/230--- 1 --- 60 187 253 26.4 134.0 1.45 0.25 0.19 34.5 60
208/230--- 3 --- 60 187 253 16.0 110.0 1.45 0.25 0.19 21.5 35
4 6 0 --- 3 --- 6 0 414 506 7.8 52.0 0.80 0.25 0.19 10.6 15
LEGEND:
FLA --- Fu l l L o a d A m p s
LRA --- L o c k e d R o t o r A m p s
NEC --- National Electrical Code
RLA ---RatedLoadAmps(compressor)
* Permissible limits of the voltage range at which the unit will operate
satisfactorily
NOTES:
1. Control circuit is 24---V on all units and requires external power
source. Copper wire must be used from service disconnect to unit.
2. All motors/compressors contain internal overload protection.
3. In compliance with NE C ( U.S.A. Standard) requirements for mu l ti-
motor and combination load equipment (refer to NEC Articles 430
and 440), the overcur rent protective device for the unit shall be fuse
or breaker.
4. Motor RLA values are established in accordance with U L (Underwrit-
ers’ Laboratories) Standard 465 (U.S.A. Standard).
5. 38HD R018 ---030 units are only available in single ---ph ase vol tage.
6. Unbalanced 3---Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is
greater than 2%. Use the following formula to determine the percent-
age of voltage imbalance:
= 100 X
max voltage deviation from average voltage
average
EXAMPLE: S u p p l y v o l t a g e i s 4 6 0 --- 3 --- 6 0
AB = 452v
BC = 464v
AC = 455v
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 7v .
Determinepercentageofvoltageimbalance
% of voltage i mbalance = 100 x
7
57
=
1.53%
This amou n t of phase imbalance is satisfactory as it is below the maximum
allowable of 2%.
IMPORTANT: Contact your local electric utility company immediately if the
supply voltage phase imbalance is more than 2%.
38HDR
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