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