1.4
FUNCTIONAL DIAGRAM
5
3
24
S3
70
4
1
6 7 8
14
16
15
17
26
25
G
R
KEY
1 Fan
3 Primary exchanger
4 Limit stat
5 Air relief valve
6 Safety thermostat 100°C
7 C.H. sensor (SM)
8 Flow switch
9 Expansion vessel
10 D.H.W. tank
11 D.H.W. safety valve 7 BAR
12 Magnesium anode
13 D.H.W. sensor (SB)
14 Safety valve
15 Gas valve
16 Pump
17 Motor-operated diverter valve
19 D.H.W. expansion vessel
20 Water pressure transducer
9
19
21
20
29
27
M
C
21 Automatic bypass
23 D.H.W. drain cock
24 Condensate drain tap
25 Gas cock (optional)
26 C.H. return cock (optional)
27 C.H. flow cock (optional)
28 D.H.W. cock
29 Fixing jig (optional)
CONNECTIONS
R
C.H. return
M
C.H. flow
G
Gas connection
E
D.H.W. inlet
U
D.H.W. outlet
C
Recirculation
S3
Condensation outlet
12
11
13
10
23
28
U
E
Fig. 2