4.3.2
SIRIUS THREE FS 200 and SIRIUS THREE FS 250
Fig.12
MW-5000721-3
12
15
16
13
11
10
20
21
24
19
17
18
7
3
1
2
23
22
14
25
26
8
9
5
4
6
1 Control panel
2 Flue gas connection
3 Flue gas measuring point
4 Controller PCB
5 Mounting point for a maximum of two AVS 75
modules. A third AVS 75 module can be used by the
boiler but must be fixed to the wall and powered
externally.
6 Power supply terminal block
7 Terminal block for the sensors and the remote
control
8 Mounting point for communication module OCI 345
Caution
Danger of short circuit on the OCI 345
communication module if it is fixed in another
emplacement.
9 Mounting point for conversion module AGU 2.551
10 Gas valve
11 Ionisation probe
12 Burner
13 Ignition electrode
14 Flame inspection window
15 Safety thermostat on the combustion chamber door
16 Ignition transformer
17 Hydraulic pressure sensor
18 Flue gas pressure switch
19 Automatic air vent
20 Flue gas sensor
21 Flue gas fitting
22 Return temperature sensor
23 Flow temperature sensor
24 Drain valve
25 Safety thermostat
26 Condensate siphon
4 Description of the product
7702639 - v03 - 10072018
25