Operating instructions

146
A1 Main PCB
X... Electrical interfaces
§
Boiler water temperature sensor
$
Outlet temperature sensor
aA
Ionisation electrode
aG
Flue gas temperature sensor
dÖ
Stepper motor for diverter valve
fJ
Thermal circuit breaker
gF
Ignition unit
a-Ö
Fan motor
a-ÖA
Fan motor control
a:Ö
Modulation coil
Designs
Internal connection diagram
5457 552 GB