– 99 –
Wire connection
REQUIREMENT
•
C
onn
ect the
wires ma
tching th
e termina
l
numb
ers
. Incorre
c
t conne
c
tion
causes a
tro
uble.
•
P
ass
the wire
s
t
h
ro
ugh
the b
u
shing of
wir
e
conn
ection ho
le
s
of the
hot
wate
r m
odu
le
.
•
K
eep a margin (Approx. 100 mm)
on
a
wire to han
g down
the el
ectrical control box at s
e
rvicin
g or oth
er pu
rpo
se.
•
T
he
lo
w-
voltage
cir
cuit is pr
ovid
ed fo
r t
he r
e
mo
te con
troller. (Do
not con
nect th
e high-voltag
e circuit)
•
R
em
ove th
e front p
anel of
the h
o
t water m
odule b
y
taking off
the m
oun
ting scre
ws (
2
po
sition
s).
•
T
ighte
n
the scre
ws of the
te
rminal blo
c
k
,
a
nd fix
th
e wires
with cord clamp atta
ched to the
e
le
c
trical control
b
o
x.
(Do not
apply ten
sio
n to t
he conn
ecting section
of th
e termina
l b
lo
c
k
.)
•
M
oun
t the
fro
nt pan
el of th
e ho
t wa
ter mod
u
le with
out p
in
c
h
in
g
wires.
Fro
nt
pa
nel
Po
we
r su
pp
ly
w
irin
g po
rt
Co
nt
ro
l w
ir
ing
p
ort
Ex
te
rn
al
s
igna
l
w
ir
ing p
o
rt
R (L)
S (N)
10
10
30
60
Ear
th
wir
e
Po
we
r s
u
p
p
ly
wir
e
(Unit:
mm)
CO
M
S1S
2S
3S
4S
5
U1
U2
A
B
R (L)
S (N)
S
id
e D
(
S
pac
e
: 8.
5 mm)
Si
de
C (Sp
ac
e:
4 mm)
*
C
a
b
le
c
lam
p ca
n be
a
tt
a
c
h
ed on
l
e
ft
s
ide.
Wire
ty
p
e
Sp
ec
if
ic
at
io
n
C
a
bl
e cl
amp
ing
po
si
ti
on
Ca
bty
re
ca
ble
3
-c
o
re
st
rand
ed
w
ire
2.
5 mm²
Side
D
Ca
bty
re
ca
ble
4
-c
o
re
st
rand
ed
w
ire
1.
5 mm²
Side
C
Ear
th
Scre
w
Co
rd
c
lam
p
(F
o
r po
we
r su
pp
ly
wir
e)
Po
we
r s
u
p
p
ly
wir
e
R
e
m
o
te co
nt
ro
ller
wir
e
Co
nt
ro
l wi
re
O
u
tput
s
igna
l
fu
nc
ti
o
n
wi
re
Remote controller wiring
•
Strip off
approx. 9
mm
the wire
to be
conne
cted.
▼
Wiring diagra
m
Output signal function w
iring
Con
nect the
followin
g outp
ut signa
ls from
the
hot water m
odule.
NOTE
A
u
xiliary re
la
y
s
(locally
pro
c
ure
d
) must b
e
conn
ected t
o
out
put signa
l f
unction wiring
s
to allow conne
c
tion
to th
e
h
o
t water
m
odule o
u
tpu
t sig
nal fun
c
tion
s. The m
a
xim
um
curren
t outp
ut signa
l, f
rom ea
c
h
of th
e out
put signa
l
function wir
ings, is
16
m
A. Ple
a
se ensur
e the r
a
ted cur
re
n
t
of the relay
co
il is less
th
an 16 mA
to
avo
id
da
mag
e
to
the ho
t water mo
dule P.C. bo
ard.
Term
ina
l
block N
o
.
Function
Comments
COM
D
C
1
2V
(C
OM
)
C
omm
on fo
r connector
S2 ~
S5
S1
Defr
osti
ng output
(C
OM
-S1)
DC
1
2
V
Rela
y co
il is
les
s than
16m
A.
S2
L
in
e
he
a
ter
ou
tp
ut
(
C
OM
-S2
)
DC
1
2
V
Rela
y co
il is
les
s than
16m
A.
S3
-
-
S4
Heating th
erm
ostat ON
output
(C
OM
-S4)
DC
1
2
V
Rela
y co
il is
les
s than
16m
A.
S5
Pump
output (
C
OM
-S5)
DC
1
2
V
Rela
y co
il is
les
s than
16m
A.
A B
A B
Ter
mina
l b
loc
k
Re
m
o
te
c
o
n
tr
o
lle
r un
it
Te
rmi
n
al
bl
oc
k
fo
r
re
m
o
te co
nt
ro
ller
wir
in
g
of
ho
t w
at
er
mo
du
le
Re
mot
e c
o
n
tr
o
lle
r wi
re
(L
o
c
a
lly pr
oc
ur
ed
)
COM
S1
S2
S3
S4
S5
Ex
te
rnal
a
c
tu
at
or
O
u
tpu
t fu
nc
tion
w
ire
Ho
t wa
ter
m
o
du
le
ou
tp
ut
sig
na
l
fu
nc
tion
t
e
rm
ina
l
blo
ck
(C
N6
0)
Lo
ca
lly p
rocu
red
Re
la
y
