27
926.323.1 - GB
INSTRUCTIONS FOR FITTERS
1.24 F - 1.14 F
Figure 19
Legend:
1 Pump and air separator
2 Pressure gauge
3 Heating circuit extractable lter
4 Boiler lling tap
5 Check valve on automatic by-pass
6 Water pressure switch
7 Boiler drain tap
8 Safety valve
9 Gas valve
10 Gas train with injectors
11 Central heating NTC sensor
12 Ignition / ame detection electrode
13 Safety thermostat
14 Water-fumes exchanger
15 Fumes conveyor
16 Fan
17 Venturi tube
18 Positive pressure point
19 Negative pressure point
20 Air pressure switch
21 Burner
22 Expansion vessel
0809_0204 / CG_2084
Heating
delivery
Gas DHW
inlet
Heating
return
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