1.5
MAIN COMPONENTS
11
10
9
8
7
6
5
4
3
2
1
KEY
1 Control panel
2 Pump
3 Gas valve
4 Flow switch
5 C.H. sensor (SM)
6 Condensate drain tap
7 Fan
8 Detection electrode
9 Ignition electrode
10 Primary exchanger
11 Exhaust fumes probe
12 Air relief valve
13 Limit stat
14 Ignition transformer
15 D.H.W. safety valve 7 BAR
16 Expansion vessel
17 Safety thermostat 100°C
18 D.H.W. sensor (SB)
19 D.H.W. storage tank
20 D.H.W. expansion vessel
ES
PT
12
ENG
13
14
15
16
17
18
19
20
Fig. 3
71