65
INS
TALLER
U
SER
M
AINTEN
AN
CE
TECHNI
CI
AN
TECHNI
CAL
D
AT
A
3.5 WIRING DIAGRAM
40
Key (Fig. 40):
B1
- Flow probe
B2
- D.H.W. probe
B4
- External probe (optional)
B5
- Return probe
B10
- Flue probe
CAR
V2
- Comando Amico Remoto (remote control)
V2
(optional)
E3
- Ignition and detection electrode
M1
- Boiler circulating pump
M20 - Fan
M30 - Three-way motor stepper
S4
- D.H.W. flow switch
S5
- System pressure switch
S20
- Room thermostat (optional)
T2
- Ignition transformer
X40
- Room thermostat jumper
Y1
- Gas valve
Colour code key (Fig. 40):
BK - Black
BL
- Blue
BR
- Brown
G
- Green
GY - Grey
OR - Orange
P
- Viola
PK - Pink
R
- Red
W
- White
Y
- Yellow
Y/G - Yellow/Green
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 44/40 of the terminal board (located in the boiler control panel) respecting the polarity and elimi-
nating jumper X40.
Room thermostat: the boiler is prepared for the application of the room thermostat (S20), which must be connected to clamps 44/40 - 41
of the terminal board (located in the boiler control panel) eliminating jumper X40.
The connector X10 is used for software updating operations.
