125
Fig. 96
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-Ö
A Fan motor control
a:Ö
Modulation coil
Designs
Internal connection diagram
5773 238 GB
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