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INSTALLERUSER
MAINTENANCE TECHNICIAN
3.5 230 V CIRCUIT WIRING DIAGRAM.
Key:
A2 - P.C.B.
A4 - Display board
E1 - Ignition electrode
E2 - Detection electrode
G2 - Igniter
M1 - Boiler circulator pump
M20 - Fan
M30 - ree-way valve (optional)
S1 - Main switch
X90 - Boiler conguration jumper
Y1 - Gas valve
Z1 - Antijamming lter
1 - External relay (optional)
2 - Alarm
Potential-free contact MAX. 230 Vac
0,8 A MAX. cosφ ≥0,6
3 - System side pump
Potential-free contact MAX. 230 Vac
0,8 A MAX. cosφ ≥0,6
4 - External relay (optional)
5 - Coil 230 Vac - Max. 0.1 A
6 - External pump (Driven by M1 pump)
7 - D.H.W. pump
Colour key:
BK - Black
BL - Blue
BR - Brown
G - Green
GY - Grey
OR - Orange
P - Purple
PK - Pink
R - Red
Y - Yellow
Y/G - Yellow / Green
W - White
W/BK - White / Black
For safety reasons the P.C.B. envisions a fuse that cannot be re-
stored in series with the electric power supply of the gas valve.
Congure the corresponding parameters when connecting in
“simple cascade”, or when connecting in “system side ow probe”,
or “D.H.W. pump”.