Worcester 350 Combi

Fig. 9a. Wiring diagram-Components outside control panel.
(All components shown viewed from front of appliance)
br y
Central
heating
sensor
Spark
electrode
w
Gas
valve
soleniods
Modur eg
y head
Gas
valve
soleniods
Domestic hot
wat er overheat
thermostat
Domestic
hot water
sensor
Flow
switch
br
Low
system
pressure
switch
10
Airflow
pressure
switch
Centra l
heat ing
pump
w
Fl ame
sensing
el ectrode
Domest ic
hot w ater
pump