91
G
460
860
45
ø130
1
290
955
70
70
M
R
S1
230
230
S2
70
E
230
390
C
U
Fig. 1/d
“LOGO 32/80 OF” version
Fig. 2
1.3
FUNCTIONAL DIAGRAM
KEY
1 Smoke chamber
2 Smoke stat capillary
3 Safety valve
4 Boiler expansion vessel
5 Boiler block
6 Gas pressure switch
7 Air vent valve
8 Manual air vent
9 D.H.W. circulating pump
10 C.H. circulating pump
11 Gas valve
12 Burners
13 Non return valve
14 Burners manifold
15 Water pressure transducer
16 Boiler drain cock
17 D.H.W. expansion vessel
18 D.H.W. safety valve
19 Manual filling group
20 D.H.W. tank
21 Magnesium anode
22 D.H.W. drain cock
CONNECTIONS
M
C.H. flow
3/4” M
R
C.H. return
3/4” M
E
D.H.W. inlet
3/4” F
G
Gas connection
3/4” M
U
D.H.W. outlet
3/4” F
C
Re-circulation
3/4” F
S1 Safety valve drain
1/2”F
S2 D.H.W. tank safety valve drain 1/2” F
