27
3-2
1
3
2
4
5
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Storage tank unit
(when the boiler is connected
to the external storage tank unit)
: the boiler is set
up to be connected to a storage tank unit, which
must be connected to terminals 36 - 37 of the
terminal block (placed inside the connection
compartment), eliminating resistance R8.
Comando Amico Remoto
V2
: the boiler is
prepared for the application of the Comando
Amico Remoto remote control
V2
(CAR
V2
), which
must be connected to clamps 41 and 44 of the
terminal board (located in the boiler control
panel) respecting the polarity and eliminating
jumper X40.
Room thermostat: the boiler is prepared for the
application of the room thermostat (S20), which
must be connected to clamps 40 and 41 of the
terminal board (located in the boiler control
panel) eliminating jumper X40.
The connector X5 is used for the connection to
the relay board.
The connector X6 is for connection to a personal
computer.
The connector X8 is used for software updating
operations.
Ke
y:
A1
9
-
Rem
ov
ab
le m
em
or
y
B1
-
Bo
iler fl
ow p
ro
be
B2
-
St
or
age t
an
k p
ro
be (o
pt
io
na
l)
B4
-
Ext
er
na
l p
ro
be (o
pt
io
na
l)
B5
-
Sys
tem r
et
ur
n p
ro
be
B1
0
-
Flu
e p
rob
e
B24
-
Sa
fety fl
ow p
ro
be
E3
-
Ig
ni
tio
n a
nd
de
te
ct
io
n e
lec
trode
M1
-
Bo
iler ci
rcu
la
to
r p
um
p
M2
0
-
Fa
n
M3
0
-
Th
re
e-w
ay v
al
ve
R5
-
D
om
es
tic h
ot w
at
er t
em
per
at
ur
e
tri
mm
er
R6
-
Cen
tra
l h
ea
tin
g t
em
per
at
ur
e t
rim
-
me
r
R8
-
St
or
age t
an
k o
per
at
io
n u
na
bl
in
g
re
sista
nc
e
S5
-
Sys
tem p
re
ssu
re s
w
itc
h
S2
0
-
Ro
om t
her
m
os
ta
t (o
pt
io
na
l)
T1
-
Bo
iler PCB t
ra
ns
fo
rm
er
T2
-
Ig
ni
tio
n t
ra
ns
fo
rm
er
X4
0
-
Ro
om t
her
m
os
ta
t j
um
per
X7
0
-
B.T
. s
af
ety t
her
m
os
ta
t j
um
per
Y1
-
G
as v
al
ve
1
-
23
0 Va
c 5
0 H
z p
ow
er
sup
pl
y
2
-
CAR
V2
C
om
an
do A
m
ico R
em
ot
o r
em
ot
e c
on
tro
l
V2
(op
tio
na
l)
3
-
Sta
tu
s sig
na
l
4
-
Lo
w v
ol
ta
ge c
on
ne
ct
io
ns
5
-
23
0 V
con
ne
ct
ion
s
3.2 WIRING DIAGRAM.
Co
lo
ur
code
k
ey
:
BK
-
Bl
ac
k
BL
-
Bl
ue
BR
-
Br
ow
n
G
-
Gr
een
GY
-
Gr
ey
O
R
-
O
ra
nge
P
-
Pu
rp
le
PK
-
Pin
k
R
-
Re
d
W
-
W
hi
te
Y
-
Ye
llo
w
STD.002549/004
