70
1
2
3
4
5
6
7
8
9
10
11
12
Fig. 3
1.5
MAIN COMPONENTS (fig. 3)
KEY
1
Control panel
2
Fan
3
Ignition electrode
4 Primary exchanger
5 Ignition transformer
6
Sensor fumes (SF)
7
Air release vent
8
C.H return sensor (SR)
9
C.H. flow sensor (SM)
10
Safety thermostat 95°C
11
Detection electrode
12
Pump system
G
M
R
R3
8
12
3
11
13
14
17
1
2
S3
4
6
5
7
1.4
FUNCTIONAL DIAGRAM (fig. 2)
Fig. 2
KEY
1 Gas valve
2 Condensate drain tap
3 C.H return sensor (SR)
4 Fan
5 C.H. flow sensor (SM)
6 Safety thermostat 95°C
7 Sensor fumes (SF)
8 Primary exchanger
11 Water pressure transducer
12 Air release vent
13 Pump system
14 Boiler discharge
17 Safety valve 5 bar
CONNECTIONS
R C.H.
return
M C.H.
flow
G Gas
connection
S3
Condensation outlet
R3
D.H.W. tank return
