1
2
3
4
5
6
7
8
9
93
2
1
3
1
4
5
6
7
8
9
10
11
12
13
14
15
1.5
MAIN COMPONENTS
Fig. 3/a
Fig. 3
“LOGO 22 OF - 32 OF” version
“LOGO 32/50 OF” version
KEY
1 Non return valve
2 Control panel
3 D.H.W. circulating pump
4 D.H.W. expansion vessel
5 Manual filling group
6 D.H.W. tank
7 D.H.W. tank drain cock
8 Boiler drain cock
9 Burners manifold
10 Pilot burner
11 C.H. circulating pump
12 Gas valve
13 Gas pressure switch
14 Safety valve
15 Ignition transformer
KEY
1 Control panel
2 Pressure transducer
3 C.H. circulating pump
4 Boiler drain cock
5 Burners manifold
6 Pilot burner
7 Gas valve
8 Gas pressure switch
9 Ignition transformer