
162
A1
Main PCB
X...
Electrical interfaces
§
A
Boiler water temperature sen-
sor
§
B
Boiler water temperature sen-
sor
aA
Ionisation electrode
aG
Flue gas temperature sensor
dD
Flow switch
gF
Ignition unit
a-Ö
Fan motor
a-Ö
A Fan motor control
Designs
Connection and wiring diagram – internal connections
5585 174 GB