Carrier 38HDF018-036 Installation, Start-Up And Service Instructions Manual page 7
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Table2
-- 38HDF Electrical Data
38HDF
UNIT SIZE
018
024
030
036
V-PH-Hz
208/230-1-60
208/230-1-60
208/230-1-60
208/230-1-60
208/230-3-60
460-3-60
VOLTAGE
RANGE*
COMPRESSOR
OUTDOOR
FAN MOTOR
MIN CKT
Min
Max
RLA
LRA
FLA
NEC
Hp
kW Out
AMPS
187
253
10.0
48.0
0.80
0.125
0.09
13.3
187
253
14.3
58.3
0.80
0.125
0.09
18.7
187
253
15.7
73.0
0.80
0.125
0.09
20.4
187
253
20.0
112.0
1.45
0.25
0.19
26.5
187
253
14.7
88.0
1.45
0.25
0.19
19.8
414
506
6.6
44.0
0.80
0.25
0.19
9.1
FUSE/HACR
BKRAMPS
20
3O
35
45
3O
15
LEGEND
FLA
--
Full Load
Amps
HACR
--
Heating,
Air Conditioning,
Refrigeration
LRA
--
Locked
Roto_ Amps
NEC
--
National
Electrical
Code
RLA
--
Rated
Load
Amps
(Compressor)
*Permissible
limits
of the
voltage
_ange
at which
unit will
operate
satisfactorily.
NOTES:
1. Control
circuit
is 24 v on all units and
requires
an external
powe_
source.
2. All motois
and co r[/pr _/ssor s contain
intelnal
oveiIoad
plotection.
3. In compliance
with
NEC
(U.S.A.
Standard)
_equi_ements
for muF
timotor
and
_mbination
load
equipment
(refer
to NEC
Articles
430 and 440),
the ove_ou_rent
p_otective
device
for the unit shall
be fuse
or HACR
breaker.
4. Moto_
RLA values
are established
in accordance
with
UL (Under-
writers'
Laboratories)
Standard
465 (U.S.A.
Standard).
5. 38HDF,
HDR018-030
units
are
only
available
in
single-phase
voltage.
6.
Unbalanced
3-Phase
Supply
Voltage
Never
operate
a motor
where
a phase
_mbalance
in suppiy
vet,-
age
is greater
than
2%
Use
the following
formuJa
to determine
the percentage
of voltage
imbalance:
= 1 O0 x
max voltage
deviation
from
average
voltage
average
voltage
EXAMPLE:
Supply
voltage
is 460-%60.
A
B
C
AB-452v
BC = 464 v
AC =455v
Average Voltage =
452 + 464 + 455
3
1371
Determine maximum deviation from average voltage:
(AB) 457 - 452 = 5 v
(BO) 464 - 457 = 7 v
(AC) 457 - 455 = 2 v
Maximum deviation is 7 v.
getermil_e percentage of voltage imbalance:
7
% Voltage Imbalai_ce _ 100x
457
1.53%
This amount of phase imbalance is satisfactory
as it is below the
maximum aiJowabJe of 2%.
I la tMe ,PyO fR hTAeNsTu:pCly/talcttYCUpll°c_el
i_l_leol; _c_ ei H Iy c/° rmeP t_lt_Y/i _/r/n_*di" I
-
457
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