Designs
Connection and wiring diagram
A1
Main PCB
X...
Electrical interfaces
§
Boiler water temperature
sensor
aA
Ionisation electrode
aG
Flue gas temperature sensor
104
internal connections
fJ
Temperature limiter
gF
Ignition unit
a-Ö
Fan motor
a-ÖA
Fan motor control
aND
Water pressure sensor
a:Ö (A) Modulation coil