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61
926.116.5 - en
INSTRUCTIONS FOR FITTERS
1.24 F - 1.14 F
Legend:
1
Pump and air separator
2
Pressure gauge
3
Heating circuit extractable filter
4
Boiler filling 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 / flame 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
Figure 19
Heating
delivery
Gas
DHW
inlet
Heating
return
CG_2084 / 1001_1804