LEGEND:
1 - Electronic board
2 - Delivery manifold
3 - System pressure switch
4 - Condensation drain pipe
5 - Air intake pipe
6 - Air fan
7 - Gas nozzle
8 - Venturi
9 - Detection electrode
10 - Cover of condensing module
11 - Sleeve with Venturi housing
12 - Condensing module
13 - Draught diverter
14 - Intakes (air A) - (fumes F)
15 - Positive signal pressure point
16 - Negative signal pressure point
17 - System return regulating NTC probe
18 - Overtemperature safety thermostat
19 - Dummy electrode
20 - Ignition plug
21 - Condensate syphon
22 - Current transformer
23 - Air venting valve
24 - Gas valve
25 - Circolulation pump
26 - Drain funnel
27 - System delivery regulating NTC probe
28 - Burner
29 - 4-bar safety valve
2 MAIN COMPONENTS
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