60
926.116.5 - en
INSTRUCTIONS FOR FITTERS
24
Legend:
1 Pump and air separator
2 Three-way valve
3 Three-way valve motor
4 Pressure gauge
5 Heating circuit extractable lter
6 Boiler lling tap
7 Cold water extractable lter
8 DHW priority sensor
9 NTC domestic hot water sensor
10 Check valve on automatic by-pass
11 Water pressure switch
12 Boiler drain tap
13 Safety valve
14 Water-water plate heat exchanger
15 Gas valve
16 Gas train with injectors
17 Central heating NTC sensor
18 Ignition / ame detection electrode
19 Safety thermostat
20 Water-fumes exchanger
21 Fumes conveyor
22 Fumes thermostat
23 Burner
24 Expansion vessel
Figure 18
Heating
delivery
DHW
outlet
Gas DHW
inlet
Heating
return
CG_2081 / 1001_1803
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