1.4
FUNCTIONAL DIAGRAM
23
2
3
4
17
20
22
U
E
1.5
MAIN COMPONENTS
11
1
8 7
9
24
10
12
5
6
19
21
G
M
R
FORMAT BF
KEY
1 Control panel
2 Divertor valve
3 Gas valve with control box
4 D.H.W. exchager
5 Burner pressure inlet (vers. "OF")
6 Combustion chamber
7 Water-gas exchager
8 Smoke chamber (vers. "OF")
KEY
1 Fan (vers. "BF")
2 Water-gas exchanger
3 Combustion chamber
4 Gas valve
5 D.H.W. exchanger
6 Divertor valve with charging
7 NTC sensor
8 100°C safety stat
9 Air relief valve
10 Circulation pump
11 Expansion vessel
12 Safety valve
13 Boiler discharge
14 Water pressure switch
15 Thermomanometer
13
16 Automatic by-pass
14
17 D.H.W. filter
18 C.H. return cock (optional)
15
19 C.H. flow cock (optional)
16
20 D.H.W. cock (optional)
21 Gas cock (optional)
18
22 Fixing jig
23 Limit stat
24 C.H. water filter
vers. "30"
9 Smoke stat (vers. "OF")
10 100°C safety stat
11 NTC sensor
12 Limit stat
13 Air relief valve
14 Circulating pump
15 Fan (vers. "BF")
16 Smoke pressure switch (vers. "BF")
17 C.H. water filter
Fig. 2
FORMAT OF
Fig. 3
75