Designs
Connection and wiring diagram – internal . . .
aA
Ionisation electrode
aG
Flue gas temperature sensor
dÖ
Stepper motor for diverter
valve
fJ
Thermocouple
118
(cont.)
gF
Ignition unit
a-Ö
Fan motor
a-ÖA Fan motor control
aND
Water pressure sensor
a:Ö
Modulation coil