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55
EN
5.4
Structure
19
20
16
17
18
1
2
3
6
7
5
8
9
10
11
13
16
15
14
12
4
1
Fan
2
Dual sensor (thermal safety/delivery)
3
Combustion chamber
4
Ignition/detection electrode
5
Diverter valve
6
System filling unit
7
Domestic hot water sensor
8
Control panel
9
Secondary heat exchanger
10
Gas valve
11
Domestic water filter and flow regulator
12
System relief valve
13
Boiler drain
14
System pump
15
Water pressure switch
16
Automatic bleed valve
17
Burner
18
Primary heat exchanger
19
Expansion vessel
20
Smoke outlet
Fig. 11
Summary of Contents for 8112100
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