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37
7115344.01 - en
INSTRUCTIONS PERTAINING TO THE INSTALLER
Figure 19
Key:
1 Water pressure gauge
2 Siphon
(condensate)
3 Central heating ntc sensor
4 105°C overheat safety thermostat
5 Gas
valve
6 Heat
exchanger
7 Flame detector electrode (ionisation probe)
8 Burner
9 Ignition
electrode
10 Mixer with venturi
11 Air/gas diaphragm
21. BOILER SCHEMATIC
131
1_2801
GAS
RR
MR
1
2
3
4
5
6
7
8
9
10
12
15
14
13
C
T
_0817
16
17
18
11
19
20
21
22
12 Fan
)OXHMRLQW
14 Automatic air vent
15 Hydraulic pressure sensor
16 Boiler drain point
-RLQWÁXHZLWKÁXHWKHUPRVWDW
18 Flue thermostat
19 Gas pressure switch
20 Seat of air intake
21 Thermal fuse
22
Exchanger flange thermostat