1
Overall information
1.1
Overall View
Flue temperature
probe NTC
Burner
Ignition
electrodes
Spark
s
Generator
Air
restrictor
Fan
Diverter valve
Main circuit
flow switch
D.h.w. temp.
probe
1.2
Hydraulic diagram
Central heating (c.h.) operation
C.h.
water return
C.h. temp.
probe
Condensing
heat exchanger
Safety
thermostat
Detection
electrode
Transformer
Gas restrictor
Automatic
air release
valve
D.h.w. Flow
Switch
Pump
Gas valve
Control
panel
C.h.
water flow
D.h.w.
heat exchanger
Domestic hot water (d.h.w.) operation
Expansion
vessel
Condensate
trap
D.h.w.
D.h.w.
inlet
outlet
1