Carrier 38HDF018-036 User Manual
Page 10
10
LEG
E
ND
NO
TE
S
:
1.
Compr
e
ssor
and
fa
n
m
ot
ors
a
re
ther
m
a
lly
p
ro
te
ct
ed.
2.
W
ir
e
in
acc
o
rdance
wit
h
N
at
ional
E
lec
tr
ic
al
Code
(NE
C
)
a
nd
local
c
o
des
.
R
eplace
an
y
o
ri
ginal
wires
wit
h
90°
C
wire
o
r
it
s
equi
v
a
lent
.
3.
T
h
e
C
LO
lo
c
k
s
out
th
e
C
O
M
P
to
p
re
v
ent
s
hor
t
c
y
c
ling
o
n
C
O
M
P
o
v
e
rl
oads
and
saf
e
ty
de
v
ic
e
s
.
B
e
fo
re
replacing
C
LO
c
hec
k
these
d
e
v
ic
es
.
4.
If
indoor
sect
ion
has
a
tr
ans
fo
rm
er
wit
h
a
grounded
s
e
condar
y,
connec
t
the
g
rou
nded
s
ide
to
“C”
o
n
the
lo
w
v
olt
age
board.
5.
Use
m
inimum
60°
C
wire
for
fi
eld
p
o
w
er
wir
ing.
6.
Cr
ank
case
heat
er
an
d
ther
most
at
used
on
select
ed
m
odels
only
.
C—
Cont
ac
to
r,
Com
p
ress
or
CAP
—
Capacit
or
CCHT
—
Cr
ank
case
Heat
er
T
her
m
o
st
at
CH
—
Cr
ank
case
Heat
er
CL
O
—
Compr
e
ssor
Loc
k
out
COMP
—
Compr
e
ssor
M
ot
or
CT
—
Current
T
ransf
o
rm
e
r
EQU
IP
—
Equipm
ent
GN
D
—
G
round
HP
S
—
H
igh-Pre
ssure
Sw
it
ch
LP
S
—
Lo
w-P
res
s
u
re
S
wit
c
h
OF
M
—
O
u
tdoor-
F
an
Mot
o
r
OL
—
O
v
er
load
TB
—
T
e
rm
inal
Boa
rd
Splice
(F
iel
d)
T
e
rm
inal
(M
ar
k
ed)
T
e
rm
inal
(U
nmar
k
ed)
T
e
rm
inal
B
lo
c
k
S
p
lic
e
F
a
c
tor
y
W
ir
ing
F
ield
C
ont
rol
W
ir
ing
F
ield
P
o
w
er
W
ir
ing
3
8
HDR
OPERA
T
ION
S
E
Q
UENCE
CA
L
L
FO
R
C
OOL
IN
G:
1.
Cont
ro
l
v
o
lt
age
fr
om
tr
ans
fo
rm
er
to
ther
m
o
st
at
(24
v
).
2.
At
ther
most
at
24
v
is
s
w
it
c
hed
to
“G
”
and
“Y
.”
3.
24
v
from
ther
m
o
st
at
“G
”
ener
gi
zes
fan
rela
y
a
t
indoor
fa
n
c
oil
and
indoor-f
an
m
o
to
r
runs.
4.
24
v
from
ther
mos
tat
“Y
”
energiz
e
s
the
logic
in
the
CLO
,
and
th
e
c
ont
act
o
r
c
oil
,
bot
h
a
t
the
out
door
unit
.
Compr
e
ssor
and
out
door
-f
an
mo
to
r
run.
6.
If
th
e
int
er
nal
pr
ot
ec
to
r
o
f
the
c
o
mpr
e
s
s
o
r,
HP
S
,
or
LP
S
ope
n,
the
2
4
v
to
the
c
ont
ac
to
r
c
oil
will
be
inter-
rupt
e
d
,
the
com
p
ress
or
and
ou
tdoor-
fan
motor
will
stop
,
and
th
e
C
LO
w
ill
k
eep
the
c
ircuit
open
unti
l
reset
b
y
s
topping
and
re
st
ar
ti
ng
th
e
2
4
v
po
w
e
r
a
t
the
ther
mos
tat
.
F
ig
.
7
—
38H
DR018
-060
T
y
p
ical
Wi
rin
g
S
c
h
e
ma
ti
c