Overall Information; Overall View; Hydraulic Diagram - Biasi Activ A 25C Service Manual

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Overall information

1.1

Overall View

thermostat
Condensing
heat exchanger
Detection
electrode
(air/gas mixer)
Electronic
control box
D.h.w. flow
switch
Gas restrictor
D.h.w. heat
exchanger
Main circuit
pressure switch
By--- pass
valve
Three way
diverter valve
1.2

Hydraulic diagram

Central heating (c.h.) operation
C.h.
water return
Safety
Fan
Air box
C.h.
water flow
Domestic hot water (d.h.w.) operation
Flue temperature
probe NTC
Expansion
vessel
C.h. temperature
probe
Ighition
electrodes
Burner
Pipe silencer
Condensate
trap
C.h. pressure
relief valve
Automatic air
purger valve
Pump
Control
panel
Electric actuator
diverter valve
Pressure
gauge
D.h.w. temperature
probe
Gas valve
D.h.w.
D.h.w.
inlet outlet
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