Carrier AQUAZONE 50PTH User Manual
Page 14
14
ECM
Y
G
G
G
G
R
W
O
Y
2
Y
1
G
R
C
Y
2
Y
1
G
O
W
C
R
D
H
A
L
1
A
A
A
L
1
S
W1
S
W2
S
W3
S
W4
S
W5
S
W6
S
W7
S
W8
S
W9
OF
F
ON
G
D
E
HU
M
C
F
M
T
B
1
J1
S
1
BM ECM
ECM
INTERF
ACE
BOARD
S
W
1
S
W
2
S
W
3
S
W
4
S
W
5
S
W
6
S
W
7
S
W
8
S
W
9
OF
F
ON
S
1
J1
BM ECM
AL
—
Al
ar
m Rel
a
y Con
ta
c
ts
AST
A
T
—
A
q
ua
st
at
BM
—
Blo
w
er
Mo
tor
BR
—
Blo
w
e
r Re
la
y
CB
—
Circ
uit Bre
a
k
e
r
CC
—
Comp
re
ss
or
C
ont
a
c
to
r
CO
—
Sen
s
o
r,
Con
den
sa
te
Ov
er
fl
o
w
DTS
—
Di
sch
ar
ge
T
e
mp
S
w
it
c
h
ECM
—
El
ec
tr
on
ic
al
ly
Co
mm
u
ta
ted Mo
to
r
FP1
—
Se
ns
or
, W
a
te
r
Coil
F
ree
z
e
Pro
te
c
ti
on
FP2
—
S
e
ns
or
, A
ir
C
o
il F
re
e
z
e
Pr
ot
ec
tio
n
HP
—
Hi
gh-
Pr
es
su
re
S
w
it
c
h
HWG
—
Ho
t W
a
te
r
Ge
ne
ra
to
r
JW1
—
J
u
mp
er
, Al
ar
m
LOC
—
Lo
ss o
f Ch
ar
ge Pr
e
ssu
re
Swi
tc
h
MV
—
Motor
iz
e
d V
a
lv
e
NEC
—
Na
tio
na
l El
ec
tr
ic
a
l
Co
de
P1
—
Fi
el
d Wi
ri
ng
T
e
rm
inal
Bl
oc
k
RV
S
—
Re
v
e
rs
in
g V
a
lv
e
So
len
o
id
TRAN
S
—
T
ran
sf
o
rme
r
NO
TE
S:
1
.
Co
mp
re
ss
or
a
n
d
b
lo
w
er
mo
to
r th
e
rmal
ly
pr
ot
ec
te
d
int
e
rn
a
lly
.
2
.
Al
l wir
in
g
to
th
e u
n
it m
u
s
t c
o
mp
ly
wit
h
NEC a
n
d
lo
ca
l
co
de
s
.
3
.
T
ra
n
s
for
mer
f
o
r 20
8/
23
0 v
will b
e
co
nn
ec
te
d f
o
r 2
0
8
v
op
er
a
tio
n.
F
o
r 2
3
0
v o
p
e
rati
o
n
, d
is
-
co
nn
ect
RE
D l
ead
at
L1
an
d a
tt
a
c
h
OR
N l
ead
t
o
L1
. In
su
la
te
op
en
en
d of
RE
D le
ad
.
T
ra
ns-
fo
rm
er
f
o
r 22
0/
24
0 v w
ill
be
c
o
n
n
e
c
te
d
f
o
r
2
2
0
v op
erat
ion.
F
o
r 240
v o
perat
ion,
d
is
c
o
nne
ct
RED
le
ad
at L
1
and
a
ttac
h
ORN le
ad
to
L
1
. T
rans
fo
rm
er is
en
ergy
limitin
g
or ma
y h
a
v
e
cir-
cu
it
br
ea
k
e
r.
4.
F
P
1 t
h
er
mi
st
or
pr
o
v
id
es
f
re
e
z
e
p
ro
te
c
ti
on f
o
r
w
a
te
r.
Wh
en
us
in
g a
n
ti
fr
e
e
z
e
so
lu
ti
o
n
s
, c
u
t
JW3
j
u
mp
er
.
5.
T
y
p
ic
a
l A
qua
z
o
ne
™ t
her
mo
st
at
wi
ri
n
g
sho
wn
.
Ref
e
r
to
t
h
e
rmo
st
at
i
n
st
al
la
ti
o
n
in
st
ru
ct
io
n
s
fo
r
w
ir
ing t
o
t
he u
n
it
. Th
er
mos
ta
t wi
ri
n
g
m
u
st
be
Cl
a
ss 1
a
n
d
v
o
lt
a
g
e
rat
ing e
qua
l
to
or
g
reat
e
r t
han
uni
t sup
pl
y
v
o
lt
a
g
e
.
6.
2
4
-v
al
ar
m s
ig
n
a
l
sho
wn
.
F
o
r d
ry
al
ar
m c
o
n
ta
c
t,
cu
t JW1
j
u
mpe
r
an
d d
ry
co
nt
ac
t
wil
l b
e
a
v
a
ila
b
le b
e
tw
ee
n AL1
and
AL2
.
7.
T
ran
sf
o
rme
r
se
co
nd
ar
y
g
rou
nd
v
ia
Co
mpl
e
te
C
bo
ar
d s
tand
of
fs
an
d s
c
re
ws
to
con
tr
o
l
bo
x.
(G
ro
und
a
v
ai
la
b
le f
ro
m
t
o
p tw
o
s
tand
of
fs
as
s
h
o
w
n.
)
8.
A
q
u
ast
a
t
is
f
ie
ld-
su
ppl
ie
d
an
d
m
u
st
b
e
w
ir
e
d
i
n
s
e
ri
e
s
wi
th
t
h
e
ho
t
le
g
to
t
h
e
pu
mp
. Aq
ua-
st
at
i
s
r
a
te
d f
o
r
v
o
lt
age
up t
o
2
77 v
.
9.
P
la
c
e
j
u
mper
s o
n
2 an
d 3,
ECM bo
ar
d,
whe
n
de
hu
mid
if
ic
a
ti
o
n mod
e
i
s
us
ed.
LE
G
E
ND
F
iel
d
L
in
e
V
o
lt
ag
e Wir
ing
F
iel
d L
o
w
V
o
lta
g
e
W
ir
ing
Pr
in
te
d Ci
rc
ui
t
T
ra
c
e
Op
ti
o
nal
Wi
ri
ng
Rela
y/
Con
ta
c
to
r Co
il
Co
nd
ens
at
e
P
a
n
Sole
n
o
id
Co
il
T
e
mp
er
at
ur
e Sw
it
ch
Th
er
mi
st
or
Gr
ou
nd
Wire Nut
Fi
g.
1
5
— Wir
in
g
o
f 50
PTH,
PTV
,PTD026
-0
72 Uni
ts
w
it
h
Comple
te
C
Contr
o
ll
e
r, Si
ngle
Pha
s
e
(
2
08
/2
30
V)