Overall Information; Overall View; Hydraulic Diagram - Biasi ActivA Plus Service Manual

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OVERALL INFORMATION

1.1 Overall View

Electronic controlbox
Three way diverter valve
Gas restrictor
Main circuit
pressure switch
Electric actuator
diverter valve
D.h.w. temperature probe
Figure 1.1

1.2 Hydraulic diagram

Central heating (c.h.) operation
water return
Figure 1.2
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OVERALL INFORMATION
Flue temperature
probe NTC
Condensing
heat exchanger
Safety
thermostat
Ighition
electrodes
Detection
electrode
Burner
Fan
Gas valve
C.h. C.h.
water flow
D.h.w.
Control
Pump
flow switch
panel
Domestic hot water (d.h.w.) operation
Expansion
vessel
Pipe silencer
Airbox
(air/gasmixer)
D.h.w.heat
exchanger
Condensate
trap
C.h. pressure
relief valve
Automatic air
purger valve
D.h.w.
inlet
D.h.w.
outlet